PrairieLearn (Remote US) — Full-Stack Software Engineer — TypeScript / Postgres / React / AI

PrairieLearn (https://www.prairielearn.com) is an open-source assessment platform used by universities across the US (Berkeley, Princeton, Michigan, Illinois, and others). We power mastery-based learning and large-scale exams.

We’re a small, profitable, early-stage company (bootstrapped, no VC) that is growing quickly. Our users love us and we have very high retention and rapid spread through word of mouth. As an early-stage hire, you’ll work across the stack and enjoy meaningful ownership from day one.

Tech we use: Node.js / TypeScript backend, Postgres, AWS, React. We’re also developing AI tooling, including LLM agents to help instructors create content, and vision-language models to help grade student work. PrairieLearn is open core: https://github.com/PrairieLearn/PrairieLearn

Details:

- Location: Remote (US only)

- Salary: $100k-$180k depending on experience

- Benefits: Stock options (0.5% - 1.5%), unlimited PTO, flexible hours

- Role: Full-time. (We’re not able to sponsor visas at this time.)

Apply at https://www.prairielearn.com/jobs-ashby?utm_source=YeEJ5MAKk...

Shepherd (Series B) | ONSITE | San Francisco, CA & New York City, NY

At Shepherd, we're pursuing the most ambitious technical vision in commercial insurance: fully autonomous underwriting. Shepherd is an AI-native commercial insurance platform transforming how high-hazard industries get covered.

The infrastructure behind the AI boom (data centers, semiconductor fabs, renewable energy assets) has to be built and insured, but traditional carriers weren't built for this speed. We built Shepherd to solve that.

We announced our $42M Series B earlier this year! That brings our total funding to over $60M — led by Intact Private Capital, the investment arm of one of the largest insurers in the world. Intact is not only our lead investor but also a carrier partner, a testament to the confidence the incumbent industry has in what we're building.

We’re looking for product-minded, high ownership engineers to join our team! The Engineering team is HQ’d in SF, but we’re growing in NYC now too!

We’re hiring for 2 Senior Full Stack Software Engineers, 1 Machine Learning Engineer and 1 AI Product Manager in SF, and 2 Staff Full Stack Software Engineers in NYC. Engineers own projects end-to-end so full stack ability is expected.

Check out our open roles here: https://shepherdinsurance.com/careers Our stack includes: Typescript, React, Next.js, GraphQL w/ Apollo, Node.js, Postgres & Redis – If you have experience building AI agents or multi-step reasoning systems, we’d love to hear from you.

* In the form, be sure to mention that you heard about this opportunity via Hacker News. If you want to read more about our team and culture, check out our blog: https://shepherdinsurance.com/blog

Location: Pisa, Italy (CET) Remote: Yes, remote only Willing to relocate: No Technologies: Python, LLM/agent orchestration, local embeddings, retrieval evaluation, AWS (Lambda/SQS/EventBridge), Terraform, Django, PostgreSQL, LightGBM/PyTorch, NLP/Transformers Résumé/CV: linkedin.com/in/vslovik Code: github.com/vslovik/fenix — local-embedding search whose relevance is actually measured: labelled control probes, blinded human ranking, precision@k. No API keys. Email: valeriya.slovikovskaya@gmail.com

Software architect, 15+ years in production systems, almost entirely startups and internal startups — fintech, e-commerce, pharma, publishing.

The work I get pulled into is the recurring startup problem: a service shipped fast under launch pressure, without adequate tests, that later has to be made reliable without being stopped. Incident response, re-architecture, and the release discipline that keeps it from happening again. Most recently that has meant a regulated UK consumer-credit platform — loan servicing, arrears, forbearance, statutory breathing space, and early-settlement calculations written against consumer-credit legislation. Regulation as code, behind a test suite larger than the production codebase.

I've done that in all three configurations: taking a core system from problem statement to release, leading the team that carried it (1 to 7 engineers in ten months), and now doing the same work again with agentic tooling covering what the team used to.

On the data side: a LightGBM acquisition model over a 38M-row base — 0.77 test AUC, 8x lift in the top 1% — scoring 2.9M households for a live campaign. The part I'd rather be judged on is what happened next: I found a validation-set defect in my own pipeline (early stopping on the test split), quantified its effect across every figure I had already reported, restated them, and added a pure-noise regression test that pins the model to chance when fed random features — so that class of leak cannot come back quietly. NLP is hands-on rather than API-deep: my degree thesis fine-tuned BERT, RoBERTa and XLNet to state of the art on the FNC-1 stance-detection benchmark, published at LREC 2020.

Building on my own time: github.com/vslovik/fenix — it ranks an incoming stream against a free-text description of what you're looking for, and answers questions over the same corpus with citations back to source chunks. Ollama embeddings, sqlite-vec, no API keys. The part worth looking at is the evaluation: the ranking anchor is scored against a labelled probe set with a deliberate control group of things I don't want, and live results are rated blind — scores hidden, order shuffled — so the human judgement stays independent of the ranking it is judging. Doing that produced a measured finding I did not expect: an embedding has no notion of negation, so naming a technology in order to reject it moves the anchor toward it. Numbers and method in lessons/embedding-anchors.md.

Also a tool-calling agent that turns unstructured regulatory text into a deterministic calculation pipeline — the model does the extraction, a deterministic engine does the arithmetic.

Looking for agentic AI/LLM engineering, LLM evaluation and observability, AI integration, or software architecture. Founding-engineer shape suits me — early employee, not co-founder, but early enough to be in the room where the work gets defined. Direct with the company that owns the product: not consultancy, not agency placement, not a body on someone else's engagement.

We The Flywheel | Production Designer | REMOTE (async, global) | Contract, part-time to full-time | https://wetheflywheel.com/en/careers/production-designer-rem...

We're a small, agent-led studio. Most of our ops run through AI agents, and the people here direct them. We need a production designer who turns briefs into polished, on-brand marketing, social and ad creative, fast, inside an existing brand system.

What we're looking for: - Real Figma experience (required) - You've wired Figma into coding agents like Codex or Claude Code (e.g. Figma MCP), so a design becomes working code without a hand-off - Strong typography and layout craft, and you can keep quality up across a high volume of assets - Clear written English for async work

Apply through the link. It starts with a short skills assessment, no cover letter needed.

For other roles, see our careers page: https://wetheflywheel.com/en/careers/?utm_source=hackernews&...

Sidekick Labs | Senior SWE, R&D Engineer, Intelligence Engineer | REMOTE (US Timezones) | Full-time | $170k to $230k Base + Equity + Health

Sidekick builds AI security software for enterprises. Our sensors observe AI behavior and use in situ. From those observations, our reasoning pipeline produces an application inventory and a risk picture, allowing us to provide real-time intervention and coaching right when it matters.

Compensation: base salary scaled to experience, meaningful early-stage equity, and 100% covered health insurance for you and your immediate family

We are a highly senior team. Most of us have been founders or on early founding teams, so we operate with high ownership. We expect you to have a real, current AI-assisted development practice. Our system spans several languages, and we expect you to use AI tools to quickly navigate unfamiliar parts of the codebase so you can comfortably own problems end-to-end across a broad stack.

We are hiring for three roles:

- Senior Software Engineer: You will work across our event-driven architecture. You'll write Go and Python backend services and touch endpoint-deployed browser and desktop components. You need to be comfortable developing in a multi-tenant, microservice-driven SaaS architecture and understand typical scale and security implications for such products.

- R&D Engineer: This is not an open-ended research function. You will take ambiguous feasibility questions tied to our roadmap and return defensible answers inside a week. You'll build handoff-ready prototypes, then shift into engineering mode to personally drive them through to production. You will also define operational envelopes and degradation boundaries, and rigorously deprecate infeasible ideas with documented rationale to avoid future re-litigation.

- Intelligence and Data Processing Engineer: This role is for someone who loves real browser and desktop forensics. You'll use dev tools and debuggers as your primary instruments. Expect to be reading minified code to find where state lives and analyzing network logs to understand undocumented APIs. You will figure out how AI products work and build the prototyping and automation to maintain our software inventory.

To apply: Send an email to eric+hn@sidekicklabs.com with the role in the subject. Include a PDF of your resume, a quick sentence or two about a tough technical problem you've solved recently, and links to your GitHub, personal site, and/or LinkedIn.

I'm Eric, VP of Technology, and I will personally read every email sent to the HN subaddress. You can view my background here: https://www.linkedin.com/in/three-two-one

https://sidekicklabs.com

Open Education Applications / Neon | Senior/Lead Platform & DevOps Engineer, Senior Frontend Engineer, Senior Full-Stack Engineer | Utrecht, The Netherlands | HYBRID | DUTCH REQUIRED

Please note: working proficiency in Dutch is strictly required for these roles, and we kindly ask for no automated applications. The rest of this post will continue in Dutch.

Wij zijn een non-profit die zich inzet om lesmateriaal voor scholen beter, betaalbaarder en flexibeler te maken, in zowel digitale als gedrukte vorm.

Werktijden en kantoordagen zijn flexibel en worden in overleg bepaald op basis van de rol. Wij bieden een competitief salaris.

Technologiestack: Git monorepo, TypeScript, Yjs en React, een beetje Python, OpenTofu/Terraform, Scaleway, managed PostgreSQL en managed Kubernetes.

Openstaande rollen:

- Senior/Lead Platform & DevOps Engineer

- Senior Backend Engineer/Architect

- Senior Frontend Engineer

- Senior Full-Stack Engineer

E-mail jobs[at]openeducation.foundation met (HN) + de functienaam in het onderwerp, samen met een korte introductie en een link naar je LinkedIn-profiel en/of GitHub. Als er van beide kanten een goede match lijkt te zijn, plan ik graag een kennismakingsgesprek in.

https://openeducation.foundation | https://www.neon.nl

PAGNOS | Cloud Engineer, AWS Serverless (TypeScript/Node.js) | REMOTE (Germany) | Full-time | €75k–80k | business-fluent German required

We build serverless applications on AWS for clients and for our own SaaS products. On client projects, we work directly with their developers and help them understand and maintain what we build.

You’ll write backend code in TypeScript/Node.js, build APIs with Lambda and API Gateway, model data in DynamoDB, and design event-driven workflows and integrations. Infrastructure lives in code using AWS CDK, with CI/CD pipelines for builds and deployments. You’ll help decide how systems are designed and take testing, observability and security into account as you build. There’s some React/Next.js work too.

We’re looking for practical experience building AWS serverless applications with TypeScript/Node.js, including infrastructure as code, CI/CD and event-driven design. The role includes working through requirements and technical decisions with clients, so you should be comfortable with that.

We use coding agents daily and expect you to use them too, and to share useful approaches with other developers. AWS serverless development is the main focus of the role.

We’re remote-first, use Scrum, and work with code reviews, pair programming, and unit and integration tests. We meet in person regularly, sometimes in Cologne, sometimes in Austria or Mallorca. We plan travel around family commitments.

You must be based in Germany and speak business-fluent German and good English. We don’t offer visa sponsorship.

€75k–80k, 32 days of vacation, hardware of your choice, and company-paid AI tool subscriptions.

Send your CV to recruiting@pagnos.com – no cover letter needed. Questions before applying are welcome.

Full job ad (German): https://germantechjobs.de/jobs/PAGNOS-GmbH-Cloud-AI-Engineer...

Snout https://snout.com/ | Multiple Engineering + Product Roles | Remote US or Ontario, Canada | Full Time

Join us at Snout on our mission to ensure no one ever has to make a health decision for their pet based on the cash in their bank account. Snout plans pay for 100% of routine veterinary care, unlimited visits, and additional member benefits - think pet insurance, that you will actually use every year.

We're growing the team and hiring across the board. Featured role this month:

Founding Data Engineer - be our first data hire: make sense of hundreds of millions of rows from vet practice-management systems and our own app, and turn our Postgres and dbt warehouse into a foundation the whole company trusts.

Our tech stack includes Node.js, React, PostgreSQL, AWS, Tailwind, and Python. We use both JavaScript and TypeScript heavily. Our team uses LLM-based tooling day to day, but we're fundamentally a human-centric team, and our product itself does not heavily feature AI components.

Apply at https://jobs.gem.com/snout

Location: Dorset, UK

Remote: Yes (UK, US and EU time zones)

Willing to relocate: No

Technologies: Ruby on Rails, Python (FastAPI), TypeScript/Node, Go, PostgreSQL, AWS, Hotwire

Resume/CV: https://wagnermatos.co.uk

Email: wm@wagnermatos.co.uk

Senior engineer, over 15 years. I build complete products: one senior engineer accountable end to end, AI accelerated. Recent work includes a clinical alerting platform used by NHS trusts, an edge to cloud analytics platform for Johnson & Johnson Medical, and the cloud platform behind a fielded detection hardware fleet. Also open to contract engagements. Case studies and client testimonials on the site.

Planlab.ai | | Product Engineer (Design) & Platform Engineer | ONSITE in London, UK | 100k-160k GBP + 0.25-0.75% Equity | Visa sponsorship

We’re building AI coworkers for project scheduling, helping teams deliver complex construction and infrastructure projects.

We’re hiring:

- *Product Engineer (Design):* Design and build intuitive software for complex projects. - *Platform Engineer:* Build our algorithms, infrastructure, shared components, agents and internal tooling.

Earlier-career through senior applicants welcome, with ownership and support matched to your experience. Both roles offer the compensation above. Company rapidly growing, with 9 team members today. We value initiative, creativity, and ownership.

For more information, including how to apply, see https://planlab.ai/jobs

OpenRent | London, UK | Full-Time | ONSITE+PART REMOTE | https://www.openrent.co.uk

What sucked the last time you rented a house or flat? Come and fix it. OpenRent is force for good in an industry tarnished by rip-off agencies and one of the biggest UK websites by traffic. Enabled by an unrelenting focus on technology, we let more properties than any agency in the UK. In the last 12m we let over £50 billion worth of property, to over 8 million registered users, without ever charging any admin fees.

You'll be working on solving every aspect of the rental journey, from models to predict the right price of a property, to building the future of property management, all to help tenants find their dream home, and landlords their ideal tenant.

We're PE backed, profitable, and have plenty of ambition to maintain our fast growth in this absolutely massive market.

Roles currently available:

- Senior Full-Stack Engineer | 110k+ (based on experience) + quarterly bonus

All roles visible here: https://www.openrent.co.uk/jobs

CareerJumpShip | Multiple engineering + go-to-market roles | Remote-first

- Shinvestments (3 roles) — Technical Writer II, Remote — https://www.careerjumpship.com/jobs/technical-writer-ii-shin...

- Bree (2 roles) — Software Engineer, Backend (Co-op), Remote · $104K–$150K — https://www.careerjumpship.com/jobs/software-engineer-backen...

- Emergent Software (2 roles) — AI Director, Remote — https://www.careerjumpship.com/jobs/ai-director-emergent-sof...

- Leadership Connect (2 roles) — Software Engineer / Senior Software Engineer, Remote — https://www.careerjumpship.com/jobs/software-engineer-senior...

- Matchgroup (2 roles) — Software Engineer II, Android, Palo Alto, California · $140K–$160K — https://www.careerjumpship.com/jobs/software-engineer-ii-and...

- Samsara (2 roles) — Manager II, Software Engineering, Infrastructure, Remote · $260K–$260K — https://www.careerjumpship.com/jobs/manager-ii-software-engi...

- SpaceX (2 roles) — Full Stack Software Engineer, Bastrop, TX — https://www.careerjumpship.com/jobs/full-stack-software-engi...

- True Tandem (2 roles) — Power Platform Developer, Remote — https://www.careerjumpship.com/jobs/power-platform-developer...

Checkly | https://www.checklyhq.com | Senior Product Engineer, Product Manager, Senior Sales Engineer, Solutions Engineer | REMOTE (Europe / US Eastern) | Full-time

The best developers don't wait for a customer to tell them something's broken. They catch it first, in the pull request, in staging, or in the checkout flow at 3am, before a single user notices. That instinct is Checkly's whole reason to exist. We give developers and their agents the tools to own reliability the way they own their code: monitoring defined as code, powered by OpenTelemetry and Playwright, versioned and reviewed like everything else they ship. From pull request to post-mortem, in one place.

Open roles:

- Senior Product Engineer (DevTools & AI reliability) - remote, UTC-3 to UTC+3 - Product Manager (DevTools & AI Reliability) - remote UTC-3 to UTC+3 - Senior Sales Engineer - remote Europe (UTC+1 to UTC+2) - Sales Engineer - remote US, Eastern time zone

All roles, compensation and applications: https://jobs.ashbyhq.com/checkly?utm_source=hn

Flexibits | Android Software Engineer | Remote | Full-time https://flexibits.com/jobs

We make Fantastical and Cardhop, award-winning calendar and contacts apps for macOS, iOS, visionOS, and Windows. We are a small, fully-remote company spread across the US and Europe, and welcome anyone from around the world. We prefer candidates that are in time zones between US Pacific Time and Central European Time.

We're looking for an enthusiastic and experienced Android developer to help bring the joy of Flexibits apps to Android. This will include learning the ins and outs of Fantastical and bringing its magic to Android, all the way from the natural language parser to the beautiful user interface.

Tech stack: Kotlin, C#, Objective-C, Swift, AppKit, UIKit, SwiftUI, C, C++.

RMG | Sr. WordPress Engineer | $100-150k | REMOTE (US/Canada)

We run 100+ WordPress and Next.js properties and we're rebuilding our development workflow around coding agents. You'd own the platform and set the standard for how we use AI in production.

Stack: WordPress (Gutenberg, ACF, WP-CLI), PHP, MySQL, Next.js, Linux/Docker, GitHub Actions, n8n.

We want someone who has shipped production code with Claude Code, Codex or similar and has real opinions about where agents help and where they don't.

US: W2 or contract. Canada: contract. Contract available with an immediate start.

Email: contact@rehabmedia.com

Thunder Compute (YC S24) | C++ Systems, Infrastructure, BizOps | San Francisco (Onsite) | Full-time | https://www.thundercompute.com

We're building the VMware for GPUs. Most GPUs in the cloud sit idle a lot of the time because they're bolted to one machine over PCIe. We decouple them.

Our virtualization layer is a userspace shim, loaded through LD_PRELOAD, that intercepts CUDA calls and ships them over the network to a host with a physical GPU somewhere else in the data center. Workloads run unchanged. When a process goes idle, the GPU detaches and gets reassigned, and reattaches in tens of milliseconds when it's needed again. Think Ceph for GPUs: the GPU becomes a network resource a cluster-wide scheduler can pool and pack.

The hard part is making that fast. We're within ~10% of native on most AI workloads, and it lets us serve ~1.8x more users on the same fleet. We run it in production as our own GPU cloud and sell it to enterprises with underutilized fleets.

Team is from Citadel Securities, Aquatic, Old Mission, AWS, and Bain. Series A, $17.5M raised from Matrix and Y Combinator.

Open roles:

- Software Engineer, C++ Systems ($215K-$325K + meaningful equity). Low-level, latency-sensitive work on the virtualization layer. Quant dev / HFT background preferred: https://jobs.ashbyhq.com/thundercompute/2efae53b-817c-43e7-9...

- Software Engineer, Infrastructure ($150K-$250K + meaningful equity). Go, Kubernetes, reliable systems at scale: https://jobs.ashbyhq.com/thundercompute/927a922b-c607-4b0e-a...

- Business Operations Lead ($150K-$225K + meaningful equity): https://jobs.ashbyhq.com/thundercompute/4f28e418-b77b-446e-a...

If you're cracked at building systems software and want to do something more meaningful than creating liquidity, reach out.

Email me at carl@thundercompute.com and mention HN. I read every email.

Smarkets (https://www.smarkets.com) | Full Time | Hybrid - Onsite (London, UK)

Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the fairest odds. We are currently looking for:

Senior DevSecOps Engineer - https://jobs.ashbyhq.com/smarkets/97b041b6-489c-4148-8e2c-2d...

Software Engineers - Backend, Python, Rust -https://jobs.ashbyhq.com/smarkets/aaaf901f-77c0-4b35-9240-ed...

Engineering Team Lead/Manager - https://jobs.ashbyhq.com/smarkets/59c8a1d1-25b6-4350-840c-9e...

Front End Engineer - https://jobs.ashbyhq.com/smarkets/d24b8384-0894-46b3-834c-ee...

Senior Product Designer - https://jobs.ashbyhq.com/smarkets/c2950791-db73-444c-809e-f7...

Location: Erzurum, Turkey (UTC+3)

Remote: Yes (remote only)

Willing to relocate: No

Technologies: GitHub Actions (CI), Python, shell (CI steps), mutation testing (mutants checked into the repo), Claude Code (agentic workflows)

Résumé/CV: on request | GitHub: https://github.com/onur-kesim | Writing: https://dev.to/onurkesim

Email: onurkesimbjk@gmail.com

Test & CI assurance for AI-generated codebases. Your build is green. I measure whether that green means anything.

Evidence rather than claims:

A release step in a Rust project could go green on a 404 and record the SHA of the error response. I reported it; the maintainer wrote and merged a fix within three days: https://github.com/unhappychoice/gitlogue/issues/236 My own CI once ran 58 test scenarios, crashed before writing any result, and the step still reported success, because continue-on-error hides more than you expect. Write-up: https://dev.to/onurkesim/do-not-trust-the-green-checkmark-48... My own tool's sabotage script and mutant files are public: https://github.com/onur-kesim/hafiza-kur (faz0/) A docs patch of mine is in drift's develop branch, committed by the maintainer: https://github.com/simolus3/drift/commit/d9f88e5b27531cfcfcd...

Caveats: 23 years in technical acceptance and maintenance of high-tech systems, including auditing a quality management system, but months, not years, in software. My code is mostly written by AI (Claude Code); the design, the checks and the verdicts are mine. I have not worked inside a team codebase or run a live system with real users. What I offer is a measurement, not seniority.

Looking for: part-time remote work (10-20 hrs/week) or fixed-scope audits of test suites and CI gates.

Mainmatter (https://mainmatter.com/rust-consulting/) | REMOTE (EU) | Lead Rust Engineering Consultant | Full-time | 80-100k€

Mainmatter (https://mainmatter.com), the company behind EuroRust (https://eurorust.eu), is looking for an exceptional Rust engineering consultant to lead our team. You'll be supporting international clients like Google, BMW, and Redis in adopting Rust: reviewing their codebase, recommending and implementing improvements, driving codebase migrations to Rust, and training their team on advanced Rust concepts.

- Must be located in the EU - Excellent Rust skills, including several years of using Rust in a production environment - Excellent engineering skills, ideally 10+ years of professional experience - Excellent English communication skills

The ideal candidate has spoken at conferences, ran workshops, written articles etc.

See the full job description and contact information here: https://mainmatter.notion.site/Lead-Rust-Engineering-Consult...

OpenSanctions | Product Engineer | Berlin, Germany / REMOTE (CET ±3 preferred) | Freelance / employment

OpenSanctions is a small, bootstrapped company building an open source database of sanctioned people and companies, politicians, and other entities of public interest. Journalists use it for investigations; hundreds of businesses use it for compliance screening.

I'm looking for a product engineer to own the systems around our commercial product: customer signup and lifecycle management, billing, reporting and analytics, and tools for our support team. You'd work across Python, SQL, and React/Next.js. You'll be empowered to decide what to build, working with the people who use these systems. We hope to ship improvements continuously and see what works quickly.

We're remote first, with a desk in Berlin if you want one. This is a freelance role with an option to go for employment. We're reviewing applications on a rolling basis. Not considering agencies.

Details: https://www.opensanctions.org/docs/company/jobs/2026-09-prod...

Please apply through the form linked in the job description - no cover letter, just share some basic facts please :)

Devin (The Devin Experience) | Founding Hardware Lead | Toronto or Boston preferred | REMOTE (North American time zones) | Full-time | Competitive salary + meaningful founding equity | https://experiencedevin.com/jobs

We're building an intimate device that responds in real time to a live AI-generated story and to her body: an app-connected, sensor-equipped vibrator synced to an interactive audio story that AI performs live. The device follows the story, and the story follows her body. Our first 1,000 pre-orders sold out, and we've raised a $1.5M pre-seed. All-woman founding team (CEO is an exited founder and HBS grad; CTO is a multi-time founder and MIT alum; COO/CPO helped lead Wattpad to a $650M exit).

This is employee #1. You'll own hardware architecture, review and change our China partners' schematics and C/C++ BLE firmware (ESP32 / nRF), co-design the BLE protocol under tight latency budgets, integrate the IMU and body sensors (separating real body signals from the device's own vibration), and take us from prototype through EVT/DVT, certification and production, with trips to Shenzhen at key milestones.

You've shipped connected hardware end to end (consumer, wearable, medical or robotics), have 8+ years building hardware products with hands-on embedded work, and have been through at least one production ramp with a contract manufacturer. Bonus: haptics/motor control (ERM/LRA, PWM, waveform tuning), real-time systems, body-worn sensing, FCC/CE/Bluetooth SIG certification.

Apply: email seema@experiencedevin.com with your resume or LinkedIn and a short note on one product you shipped: what you owned, the hardest hardware problem you solved, and how you knew it worked.

Fastly | Software Engineers (Senior, Staff, Principal) | US, UK, EU, APAC ONSITE PREFERRED | Full-time When you look at the headers of major websites, you’ll see us. If it has to be performant, secure, scaled worldwide, and always-on, it uses Fastly.

We're a global edge cloud platform for performance and security, emphasizing open standards, sustainable engineering, and resilience-by-design.

We're hiring across compute, security, platform engineering, network and edge protocols, release engineering, network architecture, client services engineering, and more.

Onsite preferred, but remote candidates with a strong fit are welcome!

Rather than building walled gardens, we co-founded the Bytecode Alliance, heavily upstream our work to open standards, actively author IETF drafts, and power the global infrastructure for open-source Python, Rust, Ruby, OpenStreetMap, and much more.

* The Stack: Rust, C/C++, Go, Javascript, Typescript, WebAssembly (Wasm/WASI), Wasmtime, Cranelift, eBPF/XDP, QUIC, HTTP, TLS, TCP, Varnish/VCL, Linux kernel internals, distributed systems, professional services. * Apply: https://www.fastly.com/about/careers

Arrangr | Growth Lead, Expansion & Lifecycle | REMOTE | Fixed-fee project ($12K, milestone-based) + equity tied to ARR results → founding role | https://arrangr.com

Arrangr is a scheduling platform with tens of thousands of registered users and hundreds of thousands of people reached through scheduling invitations. Calendly is the incumbent, and it's good. Our thesis: booking links make it efficient to fill your calendar, not productive. Every open slot looks identical, so your best hours go to whoever clicks first. Arrangr schedules by importance.

The opportunity: we can see which companies already have several people using Arrangr individually. Each of those is an unmonetized team. You'd build the motion that converts them (in-product surface, sequences, landing page, pilot) and handle the replies it generates: seats, admin rights, security questions. Then reactivate a large dormant base and fix acquisition.

The engagement: five milestones over roughly three months, $12K paid on milestone completion, milestones 1 and 2 contracted first. "Done" means shipped, instrumented and measured against a baseline. Equity is a defined grant tied to new ARR booked; hitting the middle tier triggers a founding title. Engineering time is limited, so you ship within existing product surfaces.

Right for you if you've run PQL-to-team expansion and reactivation against a base in the tens of thousands. Not for CRO specialists (our volume won't support the testing), paid media buyers, or anyone who wants to manage a team. There is no team. You're it.

To apply: no cover letter. Email adams@arrangr.com with three links to things you personally built, one line each on what the numbers did. Plus one answer: we can see which companies have several individual users. How would you turn that into team conversions, and have you run that motion before?

I read and reply to every one. – Adam, co-founder/CEO

River | Staff Engineers (Elixir) | NYC or REMOTE (US, Europe, South America) | Full-Time | $200K-$250K + equity | https://jobs.ashbyhq.com/river?utm_source=Zp9nJyqvd4 I'm Alex, founder and CEO of River. I also wrote the first line of code and still ship PRs.

River is a client-first Bitcoin-only financial institution building the financial app people use every day to save in bitcoin and spend in dollars. We custody over 33,000 BTC, serve individuals and businesses across the U.S., and are profitable. We publish cryptographic proof of reserves monthly and our company financials annually.

Here's what our engineering team is working on:

  - Real-time Bitcoin and USD payments, trading, and settlement on an Elixir monolith with a unified GraphQL API
  - Next-generation Bitcoin custody with quorum signing, key ceremonies, and geo-redundant infrastructure
  - Scaling our ML/AI systems (Python, PyTorch, XGBoost, LLMs) to automate operations and tackle fraud/risk
  - A ground-up React and React Native rewrite of our consumer app
  - Porting our Lightning Network infrastructure from Go into Elixir

We're hiring: - Staff Software Engineer (Elixir) | $200K-$250K

Apply at https://jobs.ashbyhq.com/river/610f652b-bdb9-4d82-9973-680ba...

JustPark | Senior Software Engineer, Reporting | Hybrid: Dallas, TX | Full-Time/Perm | Competitive salary + Benefits.

Apply at: https://apply.workable.com/j/FE43DE896A

JustPark is the premier partner offering both B2B solutions for destinations and B2C services for drivers, giving us the best of both worlds. We simplify the entire parking experience. From venues and councils to private driveways, our platform makes it simple for drivers to find, book, and pay for parking—while empowering our operating partners to deliver exceptional parking experiences.

Join the JustPark Reporting team. You'll build, ship and maintain the data platform and reporting products behind our venue operations, used at venues like Mercedes Benz Stadium, The Greek Theatre and The O2 Arena. Following the 2024 merger of ParkHub and JustPark, we're scaling internationally, which means distributed systems, teams, and interesting problems at the intersection of payments, data and real time event operations. This is a hands-on engineering role where you'll own meaningful pieces of our platform from design through production, including keeping them healthy on live event days. We're an AI native engineering team: engineers use Claude Code, Copilot and Cursor as daily tools for code generation, review, debugging and documentation, and we build MCP integrations that connect our AI tools directly to Jira, Confluence, Slack and internal APIs so engineers stay in flow. You'll work closely with Product, QA, and our UK engineering and data teams to shape the data strategy of a fast growing international company.

Some of what you'll be doing: -Design, build and ship backend services and streaming data pipelines in Go that handle real world scale -Own data end to end: event schema and contract design, durable messaging patterns, and the read models and warehouse tables analytics is served from -Build financial data flows, including payment processor ingestion, fee reconciliation and ledger backed reporting -Ingest and reconcile third party data (partner files and payment processor APIs) with idempotent, replayable backfills -Develop and evolve API and GraphQL serving layers that power our internal and external products -Migrate existing reporting paths onto the new architecture

Spade | Multiple Engineering, AI/ML Data Science, Revenue, and Ops Roles | ONSITE NYC or REMOTE (US/Can) | $130-240K+ (depending on role/level) + equity

Spade is the data and AI platform for modern finance. We take messy transaction data and turn it into structured, verified records — with a platform, models, and tooling that help our customers use it everywhere it matters.

We're looking for extraordinary builders to play a foundational role in a company designed for scale:

  - Senior Platform Security Engineer

  - Fullstack Engineer (Mid Level)

  - Backend Engineer (Mid Level)

  - Data Scientist - AI/ML (Mid & Sr Levels)

  - Product Performance Analyst 

  - Account Executive - Enterprise, Mid Market, Fintech

  - Account Manager - Enterprise

  - Product Marketing Manager

  - Executive Assistant to CEO/COO

We're well-funded by top investors (YC/a16z/OAK), and known for building intentional, inclusive culture. We offer competitive compensation (salary + equity) and comprehensive benefits. NYC roles are hybrid (2 days/week in our dog-friendly Flatiron office).

If interested, please apply here (https://spade.com/careers/) and mention this post.