We’re building an AI chat platform where humans and AI interact in group chats, voice, and video.
Small team, high ownership, ship fast. We talk to users and build things we actually use.
We’re looking for a fullstack engineer to build product features end-to-end.
What you’ll do: - Build and ship features across frontend and backend - Work on real-time chat, onboarding flows, and AI interactions - Own features from idea → production - Collaborate closely with design and iterate quickly
Tech stack: React / Next.js, Python, real-time systems
Looking for: - Strong fullstack experience - Product mindset (you care about UX, not just code) - High agency - you move fast and take ownership
Apply: https://shapes.inc/jobs Checkout what we are building on https://talk.shapes.inc/
Job Requirements:
- 5+ years of professional experience as a software engineer
- Experience in fintech is an optional but major plus
- Familiarity with our tech stack (Golang, React through a Next.js app, GraphQL, PostgreSQL) is beneficial but not required
Why You’d Enjoy Working with Us:
- You're joining a small fast paced team: 12 engineers, 40 people total
- Direct impact on solving real-world problems for small businesses
- Hybrid work model with 2 days on-site in SF
- Competitive salary and benefits
If interested, please reach out at hn@userainbow.com with your resume attached to the email.
You can also visit our site to learn more: https://www.userainbow.com/about
User interfaces are dead. Knowledge workers will exclusively work through agent interfaces like Claude Code/Cowork. We've built the interface layer to enable that.
One API that unifies hundreds of data providers, workflows, and data infrastructure to agents like Claude Code. We shipped our mvp last month; hundreds of early adopters signed up and are using Deepline.
You’d build core platform: agent-facing abstractions, infrastructure, UI. TypeScript/Python/Next.js/Postgres. $3.3M raised from Lerer Hippeau + Looker founding team. Technical founding team from Uber, Lyft, Capchase, MIT, Waterloo.
We're a boutique commercial real estate advisory in NYC building two production web applications: a CRE search platform and a property management platform with QuickBooks integration. Both are live with real users. Stack is Next.js 14, TypeScript, Supabase/Postgres, Prisma, Anthropic Claude API, Mapbox, Vercel + Contabo.
Hiring one senior full-stack engineer to take both products from early-stage to production-mature. You'll work directly with the founder — no engineering managers, no PMs, no committees. 35–40 hrs/week, 6-month minimum, exclusive. Rate is $4,000–5,000 USD/mo for India-based engineers and $5,000–6,000 USD/mo for engineers in Europe or Latin America.
Requirements: 5+ years full-stack, 3+ shipping production web apps, strong Next.js/React + TypeScript, shipped at least one production LLM integration (Claude preferred, OpenAI fine), 2+ hours daily overlap with NYC, available for a 30-min video check-in every weekday at 9:30am ET. This is a product engineering role that calls the Claude API, not an ML/research role.
Non-negotiables: you personally write 100% of the code (no subcontracting, no "my team"), video on for all calls, personal verified GitHub, Hubstaff time tracking, ID check + one prior-client video reference before contract signing.
Apply: https://forms.office.com/Pages/ResponsePage.aspx?id=bw3hQziC...
We respond to qualified applicants within one week. No DMs — please apply through the form.
Bustem helps e-commerce brands & more, find and shut down copycats, counterfeiters, and unauthorized sellers.
In <12 months: $3M+ ARR, 150+ brands, profitable, no outside capital.
We’re hiring a Founding Engineer to build the core systems behind detection + enforcement.
What you’ll do: Build real-time infringer detection (scraping + AI) Build automated enforcement systems (agents/workflows at scale) Own systems end-to-end (architecture → deployment → iteration)
Stack: Next.js, Postgres, modern backend infra, LLMs
You: Ship fast, high ownership Comfortable with ambiguity Build systems, not tickets
Why join: Profitable + real traction No legacy / no bureaucracy Direct impact on product + revenue Early enough to matter a lot
NYC in-person
Email: genci@bustem.co (send CV & GitHub / projects)
We're a profitable B2B services company ($3M–$50M ARR clients) actively building a proprietary AI platform — and we need the technical leader to own the execution.
WHAT WE'RE BUILDING: A multi-agent AI platform that operationalizes our founder-story methodology into deployable client systems. Architecture spec exists, pieces are already in production. We're not starting from scratch — we're scaling a real build.
THE STACK: LLMs (Claude, GPT, Gemini), multi-agent orchestration (LangGraph/LangChain), RAG pipelines, vector databases, React/Next.js, Python/Node.js, AWS, n8n/Make for automation.
WHAT MATTERS MOST: You're not just an executor. You come to the leadership table with tools and approaches we haven't seen yet. You translate the CEO's vision into a technical spec, a build plan, and a shipped product — without needing everything pre-defined.
THE TEAM: 4 core people. You'd join the CEO, a Growth Strategist, and an Operations Manager — and lead one AI Engineer (your first direct report).
ENGAGEMENT: Starts fractional with a clear path to full-time and equity for the right fit. We're not VC-funded by design, so equity is unencumbered.
Read the full spec here: https://www.notion.so/brandmultiplier/Head-of-AI-Engineering...
You will be building modern, API-driven, scalable services and applications with React/Next.js, TypeScript, Node.js, GraphQL, and AWS, using AI-native development practices. You will collaborate on architecture, shared services, internal tooling, and interface design, owning features from concept to production.
Competitive base salary, bonus and benefits (401k match).
Apply here: https://jobs.lever.co/straighterline/36d8f56b-14ac-4a35-af0c... and please mention HN under Additional Information. To get full attention, also send your resume, github, and linkedin profiles to hr at straighterline.com with subject line Hacker News.
We're a mental health nonprofit that runs like a tech startup — building the world's first digital marketplace for finding mental health services. Aggregator UX simplicity, but for therapy, psychiatry, support groups, and other mental health services. Small team punching above its weight.
Stack: NestJS, NextJS, Postgres, on GCP. AI-assisted dev tooling and agentic workflows are a first-class part of our process. Hiring:
Lead Software Engineer — Design and build LLM-driven workflows to ingest, normalize, and maintain production-grade data from disparate sources. Define schemas, data contracts, and ranking/retrieval logic. ~10+ yrs, backend/data infra. $225K–$250K. https://jobs.lever.co/project-healthy-minds/514c5d68-8e18-45...
Product Engineer, Services — Build and evaluate LLM-enabled workflows for acquiring, structuring, and enriching services data. Collab with Lead. $155K–$195K. https://jobs.lever.co/project-healthy-minds/b132246f-0429-4d...
Product Engineer, User Journey — Own the frontend experience and analytics instrumentation (Segment, PostHog, GTM). Ship features end-to-end, measure impact, identify improvement opportunities from user testing and passive analytics. Collab with Product Manager and Product Designer. Fullstack with a frontend focus — comfortable across the stack but you care about what users see and feel. $155K–$195K. https://jobs.lever.co/project-healthy-minds/188ced8e-66b9-44...
Hiring Process: 30min Phone screen + 60 min in-person (talk about solving hard problems) + paid work trial to get to know the team.
- Product has caused customers to literally cry tears of joy
- Experienced eng team from Airbnb / Brex / LiveRamp
- Stack: TS, Postgres, React, GraphQL, and Next.js
Apply here: https://about.comulate.com/careers
Senior engineer to step into a ~30k LOC system (~300 files) and help shape it properly.
Production-style system with real complexity. Interdependent modules, async flows, external integrations.
Stack: Python/FastAPI backend, Next.js frontend, early-stage routing/AI components.
Expectations:
- quickly understand an existing codebase
- trace data flow across modules/services
- identify structural issues and bottlenecks
- make pragmatic improvements without overengineering
Starts with a deep dive and direction, with room to stay involved and build it out.
AU-based only (R&D constraints).
Email: mattahbla+hn@gmail.com
30 cents of every behavioral health dollar in the U.S. is wasted — on ineffective care, administrative overhead, and outright fraud. Onos fixes this by ensuring every healthcare dollar goes toward high quality care.
Our AI platform helps health plans identify where care is going wrong, get members on the right clinical pathway, catch fraud and abuse, and automate reviews that clinical teams currently do by hand. We're well funded by top healthcare investors and live with some of the nation's largest health plans.
Stack: Python/Django, Next.js/TypeScript, PostgreSQL, AWS (Bedrock, ECS, Glue, S3). We ship with Claude Code and CodeRabbitAI.
Hiring:
- Staff Software Engineer (AI) — LLM pipelines for clinical note extraction, level-of-care classification, eval frameworks - Lead Engineer (Backend) — clinical workflow engine, AI/ML pipeline integration, multi-tenant architecture - Lead Engineer (Data/Integrations) — payer data pipelines, EDI X12/FHIR/HL7, claims feed infrastructure
All roles: https://onoshealth.com/career Email: [joinus@onoshealth.com](mailto:joinus@onoshealth.com) (mention HN)
Pinwheel is the Plaid for payroll — APIs and SDKs that give banks, fintechs, and lenders real-time, consumer-permissioned access to payroll data across 1,800 platforms covering 80% of US workers.
- Fullstack Engineer (backend-leaning) - https://grnh.se/y0rp77go3us (Python / Django, Go)
- Fullstack Engineer (frontend-leaning) - https://grnh.se/1e2ort3e3us (React, Next.js)
Hybrid 3x/wk in NYC (Union Square)
Visa sponsorship not available.
Modern customers support & product feedback platform powering thousands of teams, including Lovable, Raycast, and n8n. Fully bootstrapped, profitable, and growing fast.
We’re building a full customer-facing suite where teams can handle their customer support, feedback prioritization, and product updates - all in one place.
We’re looking for a full-stack product engineer to own and ship core product features end-to-end, with a direct impact on Featurebase’s future.
Stack: NextJS + Typescript for the frontend, Node.js for the backend, MongoDB, Redis.
If you like small teams, autonomy, and shipping meaningful product work, we’d love to have you on board!
Apply here (we read every submission): https://go.featurebase.app/careers
Hi everyone! We're a Series A startup on a mission to protect society from fraud and money laundering using our intelligent Client Due Diligence Platform. With fraud and money laundering skyrocketing, regulated professionals are struggling to keep pace with their compliance obligations. Thirdfort turns compliance into a competitive advantage, offering beautifully secure onboarding for regulated businesses operating across legal and property.
We've already protected over 3 million people through life's big transactions, with a core aim to protect many more. We've spent the last year rebuilding our product from the ground up and are increasingly leaning into AI across the team/system, focusing on technologies that let product-minded engineers solve hard client problems fast and with confidence: Go, Temporal, NextJS and React Native. We expect our engineers to use their hard-won expertise to get deeply involved in product design as much as technical implementation — joining the team is a great opportunity to work with exciting tech and have a real impact on people's lives.
We have the following open positions:
* Lead Software Engineer – we're looking for a strong technical leader to drive one of our product squads. You'll shape architecture, mentor engineers, and ship meaningful product improvements.
* Senior Software Engineer – we're looking for a senior engineer who's excited to own problems end-to-end, from product design through to production.
* Analytics Engineer (Fixed Term Contract) – we're looking for someone to own and improve our analytics models and datasets end-to-end, covering a period of parental leave.
Come take a look at our open roles: https://www.thirdfort.com/jobs/
Scorecard builds simulation environments and reward models that frontier AI labs and enterprises use to train and evaluate their agents. Same discipline that made self-driving cars work, applied to LLM-based agents.
Our founding team built simulation infrastructure at Waymo, SpaceX, and Uber ATG. I'm Dare, the CEO and scaled Waymo's simulation org to 200+ engineers. We're ~7 people, 7-figure revenue, $3.75M seed led by Kindred Ventures with angels from OpenAI, Apple, Waymo, Uber, Perplexity, and Meta.
Founding Engineer ($175K-$280K + strong equity). Primarily backend. You'll own technical domains end-to-end. We use agentic tooling (Claude Code) heavily. Moving fast and working customers matters more than deep expertise in any one language.
Stack: TypeScript, Node.js, Next.js, PostgreSQL, ClickHouse, Temporal, GCP.
jobs@scorecard.io
Join HIFI Labs and work on innovative projects with well known and iconic musicians. Past artist activations include Bruno Mars, Linkin Park, Jisoo / Zayn,Rüfüs Du Sol, Dua Lipa, and Mike Shinoda. We're looking for a Senior Fullstack Engineer passionate about design, user interactions, and privacy.
You'll work with TypeScript, React/Next.js, Firebase and explore new frameworks like Astro. Experience with Styled Components, continuous deployment and devops is a plus. We also play around with React Native / Expo.
Sound like a fit? Email us at pierre at hifilabs dot co
Senior Software Engineer: You'll own complex technical problems end-to-end—translating customer needs into scalable architecture, optimizing AI model efficiency through prompt engineering, and shipping features that directly impact how revenue teams operate. We want bold ideas and people who push boundaries.
Junior Software Engineer: You'll work across our stack (Python, FastAPI, Next.js, React) alongside senior engineers, contributing to real features from day one. Great fit if you're hungry to learn, ship fast, and grow with a startup building cutting-edge agentic systems.
New Grad Software Engineer: Entry point for recent grads excited about AI and agentic systems. You'll get hands-on experience with our modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB), Kubernetes/AWS deployment, and Temporal.io workflow orchestration while shipping production code.
This role is based in our Manhattan office (4 days/week in-person). Full health and dental coverage.
Apply: https://forms.gle/kEi5MDDiaJKdyN3fA or email maksym at withlantern.com with your resume.
flaconi is an online e-commerce for beauty products, founded in 2011 in Berlin. We are active in 12 countries and expanding to more. We're primarily on AWS, use React, Next.js, Vercel for web, Flutter for our mobile app - you will find more details on the job listings.
Note: Visa "sponsorship" takes a while, so ideally you already are in EU / Germany with a work permit.
1. Staff Software Engineer - Frontend - €85.000 - €105.000 EUR - https://grnh.se/kke6q552teu - we will very likely work together. Happy to answer questions.
2. QA Engineer Mobile - €60.000 - €83.000 EUR - https://grnh.se/ad3i2y62teu
We are applying AI to organize corporate events.
We are looking for a senior engineer with at least ten years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. Please note that we are working in the CET timezone. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture.
Apply here: https://eventfirst.jobs.personio.com/job/1646275
Civilization Labs is a Public Benefit Corporation building tools to help people pressure-test ideas before acting on them. Our products are designed to make reasoning more transparent, surface uncertainty clearly, ground conclusions in evidence, and help turn good judgment into better execution.
We’re hiring a Full Stack Engineer for an early-stage, high-ownership role spanning product, backend, frontend, infra, and AI-enabled workflows. This is a role for someone who likes ambiguity, moves fast, and wants to build tools that help people think more clearly and decide better.
Stack: Python, Node.js, Next.js, React, GCP, CI/CD, IaC, microservices, databases, messaging, monitoring. Rust/WASM and blockchain/protocol experience are a plus.
Comp: $160k-$185k base, flexible cash/equity mix.
Learn more and apply: https://civilization-labs.com/jobs
Anduril's ArsenalOS handles all receipt, manufacturing, deployment and maintenance of all Anduril hardware that is shipped to our customers. We are looking for a Full Stack Senior Software Engineer to join the ArsenalOS team. As a Full Stack Senior Software Engineer on ArsenalOS you will be architecting and implementing mission-critical solutions that enforce lean business process, add multiplicative leverage to Anduril employees, and scale Anduril into a next-generation defense prime.
WHAT YOU’LL DO: -Own and deliver features for Forge, Anduril’s production platform. -Level up our team’s applications through quality code contribution and writing tests. -Leverage frontier AI tooling for development, and contribute to our local Forge harness. -Partner with the factory floor to enable high rate build of Roadrunner, Fury, and other Anduril products. -Join an on-call rotation for Forge support of the production floor. -Collaborate cross-functionally with systems architecture, software product and design, factory systems, and production digital tools.
Please apply here: https://job-boards.greenhouse.io/andurilindustries/jobs/5036... .
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 just announced our $42M Series B last week! 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.
(Hear from our CEO here: https://www.shepherdinsurance.com/blog/behind-our-42m-series...)
(Hear from our CTO here: https://www.shepherdinsurance.com/blog/the-road-to-autonomou...)
This year, we’re doubling our engineering team from 20 to 40. We’re looking for product-minded engineers to join us as we continue to scale! We’re looking for someone who thrives on ownership, drives results, and cares deeply about both technical excellence and customer impact.
We’re hiring various mid-level, senior-level and staff-level engineers. See some of our openings below:
* Full Stack - Job Posting: https://jobs.ashbyhq.com/shepherd/c4081c3d-a79b-4ac9-aa19-78...
* Backend - Job Posting: https://jobs.ashbyhq.com/shepherd/395f4b75-cf05-4581-8408-8f...
* Machine Learning Engineer - Job Posting: https://jobs.ashbyhq.com/shepherd/797316b4-bdcc-4c0c-8bc2-46...
* Applied AI Engineer - Job Posting: https://jobs.ashbyhq.com/shepherd/26959124-aab2-446e-aa4d-72...
* Design Engineer - Job Posting: https://jobs.ashbyhq.com/shepherd/aa254ca8-6721-4770-9a9b-e0...
* Product Design - Job Posting: https://jobs.ashbyhq.com/shepherd/386f87c9-4315-4fc7-aad7-ec...
* Senior Technical Recruiter - Job Posting: https://jobs.ashbyhq.com/shepherd/ccab3e26-4fc8-4bc2-ada3-71...
Our stack includes: Typescript, React, Next.js, GraphQL w/ Apollo, Node.js, Postgres & Redis
Apply here: https://shepherdinsurance.com/careers
* 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
We're building an AI-native clinical data platform from the ground up, not a legacy system with AI bolted on. AI is core to the architecture, the development workflow, and the product itself. Fully funded by a private family office, no outside capital needed, no fundraising runway concerns. We're assembling the founding team now.
We're building a founding team to revolutionize healthcare in the United States, and we're hiring a technical operations lead. Best analogy: studio engineer to a recording artist. You own the environment so engineering leadership stays on high-leverage product work. That means CI/CD, QA, testing infrastructure, compliance documentation, and 30-40% independent feature development. Ground-floor equity in a company that's pre-revenue by choice, not by circumstance.
Hard requirement: you are already shipping software with AI coding tools daily (Claude Code, Cursor, Copilot, or similar). Not curious about AI. Not experimenting. Actively building and deploying with it. If you can't show us something you built with AI tools in the last 60 days, this isn't the right fit. Stack: React/Next.js, Python, PostgreSQL, Docker, AWS. But we care more about polyglot instincts than any single framework.
What we're looking for:
3-7 years full-stack experience Strong QA discipline (you write tests because you want to, not because someone made you) DevOps comfort: Docker, CI/CD pipelines, cloud infrastructure Self-directed. We don't micromanage and don't plan to start. Must be US-based or already have US work authorization. We do not sponsor visas.
What you get:
Meaningful early-stage equity (not a token option grant)
Direct access to founders and decision-makers, no layers
A say in the technical architecture from day one
Relocation to Miami fully covered
Health, dental, vision
Interview process: 15-min screen (show us your AI-built work) > take-home exercise > 2-hour paid working session > culture fit conversation.
Email: ksantos --at--direzzefamilyoffice.com, subject line "HN April 2026" so I can find you.