Location: London, UK Remote: Yes — UK remote or London hybrid/onsite Willing to relocate: No Right to work: UK — no sponsorship required Availability: Immediately

Software Engineer with 4 years of experience, primarily focused on backend and platform engineering using Node.js, TypeScript, AWS, PostgreSQL, Redis, and event-driven systems.

Most recently worked as a Software Engineer II contractor at Deliveroo, improving production CRM data pipelines and lifecycle orchestration using AWS Lambda, SQS, PostgreSQL, Snowflake, Go, and Datadog. Earlier experience includes leading a migration of approximately 400,000 users, updating around 500 APIs, improving application performance with Redis caching, and building production services end to end.

Interested in Backend Engineer, Platform Engineer, Full-Stack Engineer, or early-stage/founding engineering opportunities.

Technologies: Node.js, TypeScript, JavaScript, React, AWS, PostgreSQL, MongoDB, Redis, Kafka, SQS, Lambda, Docker, Terraform, REST APIs, microservices, Datadog, CI/CD, Go

GitHub: https://github.com/Samiksha-sudo LinkedIn: https://www.linkedin.com/in/samiksha-kad-ab66051a9/ Portfolio: https://mycreportfolio.com/samiksha

Lumen Labs | Robotics / Hardware Engineer | San Francisco, CA | ONSITE | Full-time | $130k–200k + equity | https://lumenresearch.co

I'm Daniel, co-founder. Lumen Labs is building the cognitive layer for physical AI. Nearly every major robotics effort today teaches machines by showing them thousands of hours of human teleoperation. We think that paradigm has a ceiling, and we're working on nature-inspired architectures for unstructured environments (construction sites, mining, pipelines, battlefield). Pre-seed, backed by top VC funds and operators from robotics/AI companies.

We're a team of two and hiring teammate #3 to own the hardware and infrastructure that keeps our research platforms running: the ROS2 (Humble) stack across onboard and offboard compute, sensor integration and calibration (LiDAR, depth, IMU, encoders), the safety pipeline during autonomous runs, and getting trained policies onto real hardware. Today that's wheeled navigation; we're dipping our toes into drones and eyeing weirder platforms like pipeline inspection. Where we're at: zero-shot sim2real transfer with a policy that runs at 100Hz on an ESP32 and took under a day to train.

You: hands-on with real mobile robots (UART, encoders, PWM, IMU, LiDAR), strong Python + embedded, comfortable reading code you didn't write, and can debug hardware and firmware at the same time. If "full-stack" to you means firmware, a multimeter, and a ROS node in the same afternoon, you'll fit right in. Visa/relocation support for the right person.

Full posting: https://desert-bearskin-26d.notion.site/Robotics-Engineer-Ro...

Email hi@lumenresearch.co, mention HN, and tell us about a project you've built. If you can link to a time you got a trained policy running on real hardware, you go to the top of the pile.

Ours Privacy | Senior Platform Engineer | Remote (US) | Full-time | https://oursprivacy.com/careers

We're building the marketing infrastructure healthcare has been missing — a privacy-first CDP and consent management platform in one product, so healthcare marketers can run real campaigns without putting patient data where it doesn't belong.

You'd own our AWS platform end to end: Lambda, Kinesis, SQS, Fargate, DynamoDB. High-volume event pipelines feeding dozens of third-party destinations, where correctness actually matters. The work is infrastructure-as-code, pipeline reliability (retries, idempotency, DLQs, backpressure), CI/CD and developer experience, and the observability and controls behind our HIPAA and SOC 2 posture.

Small team, large surface area, real latitude to fix what you find. TypeScript/Node throughout. 5–8 years experience, deep AWS, and you've debugged a streaming system under load.

Email careers@oursprivacy.com, subject "Senior Platform Engineer." I read every one.

Squoosh.AI | Full-Stack Engineer (full-time, REMOTE) + PhD Researcher (part-time, REMOTE US) | https://squoosh.ai

We build AI systems that simulate how people explore digital experiences, helping commerce teams evaluate and improve websites. We're hiring for two roles:

Full-Stack Engineer — $90k–150k USD/year. Own features across the UI, APIs, and data layer; turn tickets into small, tested PRs and follow them through release. Relevant stack: React/Next.js, TypeScript, Python APIs, Postgres, browser automation. We want someone who uses AI coding tools well and can independently debug and validate what they ship. Strong projects and early-career builders welcome.

PhD Researcher — $60–70 USD/hour, part-time alongside current full-time PhD enrollment. Work on LLM/browser-agent evaluation, persona calibration, behavioral modeling, experimental design, and comparison with real A/B-test outcomes. Strong Python and research methods matter; bring a paper, repository, benchmark, or experiment you can explain deeply. US work authorization required; applicable CPT/OPT welcome. Schedule agreed around your doctorate.

Apply: tyler@squoosh.ai, subject “HN — Full Stack” or “HN — PhD Researcher”. Include a resume/CV, a shareable work sample and your personal contribution; PhD applicants please include availability and research area.

Obi9 | Full-Stack Engineer | REMOTE (US time zones) | Contract or Full-time | https://obi9.ai/jobs/full-stack-engineer

A hedge fund analyst covering therapeutics has to watch hundreds of companies at once: press releases, SEC filings, management calls, updates on government sites, clinical data publications. Obi9 ingests all of it and surface what matters. Hedge funds pay for it today.

We are early and the team is small, so you would own entire surfaces of the product rather than pick up tickets:

- Ship full-stack features end to end, from the data model to the interface.

- Build the ingestion and enrichment pipelines that turn raw data into rich insights and alerts.

- Work on AI-backed features, from ideation to serving them in the webapp and over MCP.

- Make heavy data legible: dense tables, financial charts, document viewers, a live alert stream.

Stack: React + TypeScript, Node, Elixir, Python, distributed AI pipelines.

Beyond full-stack ability we want someone who already understands one of these worlds. One is enough, we are not asking for all four:

- Financial information systems. Bloomberg, FactSet, AlphaSense, Capital IQ, PitchBook. You know what entity resolution, identifier mapping and point-in-time data cost to get right.

- Financial domain knowledge in healthcare. Equity research, valuation, or time spent living inside filings and models.

- Audio and transcription. OtterAI Deepgram, AssemblyAI, Whisper. Diarization, speaker attribution, turning messy call audio into something quotable.

- AI-intensive products where the pipeline IS the product. Legal AI, document intelligence, medical coding. You know what evals, grounding and extraction schemas that hold actually cost.

Minimum: 5+ years building production web applications, a technical degree, fluency with current AI tooling, and eight continuous hours inside the 8:30am to 5:00pm ET window.

Apply: https://obi9.ai/jobs/full-stack-engineer?tab=apply

Cider Consulting | NY, USA | REMOTE (US-based only)

We’ve built custom software for US clients since 2018, and we’re now building a different delivery model: one senior engineer-consultant owns the whole engagement end-to-end — from figuring out the problem with the client and shaping the AI solution to building and getting it into production.

Hiring: Forward Deployed Engineer with pre-sale/discovery experience (must!) as solo person/solo consultant - direct hot-lead communication is a must. English C1-C2 is a must, strong full-stack expertise (commerce) with at least one of cloud infrastructure, CI/CD, or data. Experience shipping AI-powered features to production - not model training/fine-tuning, courses, or side projects with no end users.

Apply: mariiau@cider.consulting (mention Hacker News)

Catalyst·Wayfare AI | Agent Builder | Remote (US ET Overlap) | Full-time / Part-time / Contract | https://catalystwayfare.ai/careers

AI transformation firm shipping production AI systems for mid-market enterprises in regulated and technical domains — finance, energy, industrials, healthcare. We do not stop at PowerPoint AI strategy. We ship working systems alongside our clients' engineering teams. Small teams, deep expertise, real autonomy on real work.

Hiring: AI Engineer, Agent Builder — Hands-on builder delivering key projects within multi-agent orchestrations — initially for one of the country's leading power engineering firms. End-to-end ownership of individual capability agents — prompts, tools, retrieval, deterministic checks, evals, monitoring, enabling infrastructure setup. 3–5+ yrs strong Python, real production LLM API experience, shipped multiple agentic systems end-to-end. 1099 contract, ~20–40 hrs/wk. Occasional US travel, where feasible. International candidates will be considered subject to US ET time-zone overlap. https://catalystwayfare.ai/jd-builder

Apply: per the JD's instructions, to talent+hn@cwai.co. Short cover note and impressive repos matter more than a resume.

Anterior (Sequoia-backed, Series B) | Senior Member of Technical Staff | On-Site (New York, NY) | Full Time | $230,000–$300,000 + equity

Company: Anterior builds AI for healthcare administration. Health plans review clinical evidence against medical policy before care gets approved, often relying on nurses reading PDFs. Our platform reads policies and clinical records, producing decisions clinicians can audit. We're ~45 people in New York and recently raised $40M, bringing us to $64M total, from Sequoia, NEA, Neo, FPV, Kinnevik, and founders of DeepMind, Google AI, and Inflection.

Role: Members of Technical Staff handle everything from system design to production: designing backend services, scaling AWS, debugging, scoping integrations, or evaluating LLM-powered systems. You'll set technical direction and mentor engineers.

You: + Strong backend and/or infrastructure experience, and operated at scale + Care about foundations like consistency guarantees and code simplicity + Known for solving tough problems and making lasting architectural calls + Looking to write enduring code + Background in scale-ups, big tech, finance, or AWS-heavy teams

Tech: Python, Go, TypeScript, React, Nix, AWS (migrating from CDKTF — bonus if you've done this).

See our team in action: https://www.youtube.com/watch?v=mav15aW9lLM https://www.youtube.com/watch?v=XAsb7MIAzm8

Bring your GitHub and proudest firefighting story: https://xn--xp5a.anterior.app/ — mention what resonates.

Apply: https://jobs.ashbyhq.com/anterior/1163af7a-d1d6-41db-a8ea-fc...

Purple Candor LLC — AI Engineer — Remote / US (Sub-contractor- 6 month+)

Looking for engineers who have actually built and shipped production systems — not just designed them. Cloud engineer + agentic engineering experience.

Email jeremy@purplecandor.com with a short note and something you’ve built or shipped.

If you’re an engineer who likes solving hard problems where the answer isn’t obvious, let’s talk.

Location: India Remote: Yes Willing to relocate: Bengaluru / open to the right opportunity Technologies: Python, TypeScript, FastAPI, Next.js, LangGraph, LangChain, RAG, MCP, Qdrant, pgvector, PostgreSQL, Docker, AWS Résumé: https://namangupta.dev Email: [naman@namangupta.dev](mailto:naman@namangupta.dev)

AI Systems Engineer working on production LLM systems, RAG, agents, and evaluation.

Currently building multi-agent and retrieval systems handling 500+ daily queries. Experience with chunking, embeddings, reranking, vector databases, Precision@k / Recall@k / MRR evaluation, latency optimization, and production deployments.

Built MCPHub, AgentMesh, and a RAG evaluation harness.

Looking for full-time remote AI/backend roles or contract work with startups building agents, document AI, enterprise AI, or retrieval-heavy products.

GitHub: https://github.com/namanxdev

Director of Sales Legal Ark AI · First Sales Leader · Job Description · REMOTE (US) https://legalark.ai and talent@legalark.ai

About: Legal Ark AI serves as the workflow intelligence engine for estate planning practices. Our platform converts unstructured client data into high-confidence, verified facts prior to document generation, empowering legal teams to accelerate throughput, mitigate risk, and scale efficiently without a linear increase in headcount.

The Role: As our first Director of Sales, you will own new business revenue end to end and build the sales engine from the ground up. You will personally close early deals, figure out the repeatable playbook, and then hire and lead the team that scales it.

What You’ll Own: - New business ACV: land our core market, estate planning firms with 1 to 25 attorneys, and structure larger deals where they make sense. Large litigation firms are not our market. - The playbook: build outreach, qualification, demo, and close motions from scratch; find the repeatable recipe, then document and scale it. - The team: hire and lead SDRs and inside reps as revenue supports, so you move from doing everything to leading a team that does. - The stack: own the sales tooling (prospecting, CRM, sequencing, automation) and choose what makes the team most efficient. - Pricing and packaging: partner with the founders on pricing, tiers, security and white glove options, and value gating; be the eyes and ears on what customers will pay for. - Market signal: feed product and customer success with what you hear in the field, and represent Legal Ark AI at industry events.

What Success Looks Like: You ramp quickly to a new business quota (target Year 1 new ACV of approximately $3,000,000, roughly 250 seats at current pricing), establish a repeatable motion, and lay the foundation for a team that carries the company toward its growth and exit goals.

Who You Are: - A proven B2B SaaS closer who has built processes, not just worked someone else’s. - Experienced selling to SMB and moving deals upmarket; comfortable running the full cycle, from first touch to signature. - Energized by an early stage, commission only structure where your earnings track directly to the revenue you bring in. - A builder and leader who can hire, coach, and scale a small team. Someone who can sell a product that augments attorneys and their staff rather than replacing them, and who is comfortable leading with verification and confidence in the data rather than speed alone. - Legal tech, AI, professional services, or legal sales experience is a plus, not required.

Compensation: Uncapped commission

Freeform (http://freeform.co) | Software Engineers | Full-time | Onsite | Hawthorne, CA (Los Angeles County)

Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation where complex hardware is designed, built, and scaled without limits. This isn’t just an improvement; it’s a leap forward in how complex metal parts are made, with the ability to revolutionize industries like aerospace, defense, automotive, energy, and beyond. We are backed by top VCs including NVIDIA’s NVentures, Founders Fund, Threshold Ventures, and Apandion.

It’s a small, tight-knit team and you’d have the opportunity to own significant and impactful greenfield projects throughout the entire development lifecycle and much more. Our software team comes from the likes of Google, SpaceX, and Apple, and believes in taking a first principles approach to solving hard problems.

A glimpse into our software landscape - https://www.youtube.com/watch?v=nFWQArUkd5I

Our feature in TechCrunch announcing our $67M Series B Raise! https://techcrunch.com/2026/02/19/freeform-raises-67m-series...

Current open positions:

+ Principal Software Engineer - https://grnh.se/27ajbj9k3us

+ Senior Full Stack Engineer (MES) - https://grnh.se/vp93v0cu3us

+ Senior Software Engineer - https://grnh.se/m2l08z853us

+ Senior Software Engineer (Embedded) - https://grnh.se/hb838bth3us

+ Senior Software Engineer (Full Stack Enterprise) - https://grnh.se/z1hbnfo33us

+ Software Engineer - https://grnh.se/hnwff2s23us

+ Software Engineer (Embedded) - https://grnh.se/acaazaw13us

+ Software Engineer (Full Stack Enterprise) - https://grnh.se/26cvuixl3us