pleasefix.ai | AI Engineers & Backend Engineers | Belgium, Brussels | Full-Time
pleasefix.ai builds Cursor for finance. We’re actively hiring AI Engineers (LLM agents) and Backend Engineers (Cloud, Docker/K8s, Python, Observability, CI/CD) to help us ship production-grade automation fast.
Apply → DM: www.linkedin.com/in/severine-nolf
Finch | Staff Software Engineer, Backend | HYBRID - SF or NYC | https://jobs.lever.co/finch/62ac428a-80ef-4469-9e06-0b87ed4f... | $200K+ base + equity
Finch (tryfinch.com) is building unified API infrastructure for employment systems—think Plaid, but for payroll and HR data. We connect 401k providers, insurance companies, and other fintech apps to 200+ payroll providers through a single integration. Series B backed by General Catalyst, Menlo, YC, and angels including founders from Plaid, Brex, Mercury, and Ramp.
We're looking for a Staff Backend Engineer (10+ years) to lead large cross-team initiatives, design systems for high-volume data processing across complex employment integrations, and help set architectural direction. You'll work with NodeJS, TypeScript, PostgreSQL, Redis, and AWS. We deploy daily, practice TDD, and care deeply about building reliable, scalable APIs. Strong systems design skills and comfort with ambiguity are key—you'll be defining problems as much as solving them.
Hybrid (2+ days/week in SF or NYC). Equity includes a 10-year exercise window. Full benefits, unlimited PTO with 3-week minimum.
Happy to answer questions here, or apply via the link above.
Flax Health | Salt Lake City, UT (Remote-Friendly with Annual Travel) | Full-Time | Senior/Staff Full-Stack Engineer | flax.ai
Flax Health is building the operating system for post-acute care. Our AI platform automates clinical workflows to dramatically boost efficiency and improve patient outcomes. We’re backed by top VCs (Sorenson Capital, Pear VC) and growing quickly. Looking for driven, high-agency engineers who can make an impact on our product from day 1.
We're looking for: - Proven success in the fast-paced 0 to 1 stage of young startups (founding/pre-seed experience a plus)
- 5+ years of experience building web-based products (B2B SaaS ideal), with strong full-stack skills in TypeScript, Node.js, and DB design
- Strong hands-on-keys coding chops + experience building end-to-end systems
- Bias for shipping, learning, and iterating quickly
- User focus: you care about building things that solve real problems
- Experience with healthcare data (not required but highly valued)
Comp: $120k-$200k base + equity; health insurance; 401(k); paid parental leave; learning/development budget.
Apply: https://jobs.ashbyhq.com/pear/c18b5aa6-de9e-4b1a-957d-9208be...
Electric.ai | Senior Frontend Engineer | Remote (South&Latin America) | Full-time | $60,000 - $85,000
We're a company based in the US focusing on helping small and medium businesses be on top of their IT with the help of software and automation, even if they have limited IT & security knowledge.
We're looking for a senior frontend engineer, we're react shop with a standard stack. We're a mix of US and South America based engineers on the team.
email: cmVtaS5jYXJ0b25AZWxlY3RyaWMuYWk=
Mulligan Post, Inc - On-Site near Millbrae BART/CalTrain Station in Burlingame - $60-120/hour Contract - Mechanical Design Engineer / Mechatronics / Industrial Automation.
Software hacker seeking hardware hacker to make custom robots for Magic: The Gathering automated storage and retrieval system to power an online e-commerce store (think CardKingdom competitor or eventual TCGPlayer competitor.) In terms of scale, the eventual target is >100k different _skus_, million items in inventory, tens of thousands picks per day. The industry is large; eBay bought TCGPlayer for $300M about 3 years ago.
I am looking for a mechanical/electrical/hardware generalist to complement my software expertise. Someone who knows how to integrate off the shelf parts into custom automation to solve problems. If fast iterations, direct connection with the project in use, autonomy and minimal bullshit overhead appeals to you then this could be a great fit. You are: someone who makes stuff and solves problems, is a clear communicator and fast study. You know how to challenge a requirement, source an off-the-shelf-part or design custom manufacturable part and when to do each. I don't really care where or when or what your degree is in if you have demonstrated driving things to completion and we vibe well enough.
We will use OnShape (license/seat will be provided) for collaboration and document management reasons. Much of what we need to build is integrating FUYU linear rails, Clearpath motors, pneumatics with some custom Send Cut Send / Xometry parts, 8020 frames, etc.
Pros: Small team / minimal overhead and wide scope. Clear guidance on what to build. Flexible-ish schedule (core hours 9-5 in office, flexibility for school breaks, etc.) Real problem with established market.
While I'm primarily looking for a contractor for now, I am open to the possibility of bringing the right person on full-time with equity if they are interested and invested in the space, but that is not a requirement and it probably makes sense to establish that after working together for a bit.
No recruiters or third parties, not able to sponsor at this time. Compensation dependent on experience.
Hiring process: resume/project review, vc chat < 1 hour, then paid 1-day work trial where we see if we fit.
If you're interested, send me an email - hiring@mulliganpost.com
Graphite | Mid-level & Senior Software Engineers| New York, NY in our Soho Headquarters | https://graphite.com
We’re building Graphite to help high-performing engineering teams run faster, cleaner code reviews. Our product is already used by some of the world’s best developers, and we’re just getting started! We're hiring experienced engineers across the stack, are are looking for people who:
-Care deeply about code quality, system design, and scaling software responsibly
-Have a strong product sense and enjoy collaborating closely with design & product teams
-Have experience with AI-driven workflows, prompt engineering, or interest in developer tooling is a plus
-Are product-driven and quality-obsessed; we ship thoughtfully and often
Earlier this year, we've raised a $52m Series B by Accel, A16z, & others, and have big goals this year.
The hiring process: quick intro call, 2 technical interviews, & an onsite interview, followed by offer!
We've recently tripled our headcount here in NY & do not plan on slowing down anytime soon! If you are someone who wants to work on meaningful problems, values clean code and thoughtful systems, & loves building tools for other engineers, we'd love to chat with you!
You can apply directly on our careers page(https://graphite.dev/careers#positions) or email sam@graphite.dev with the subject title: "Thank you for stacking with us) with a copy of your CV.
Recruiters: appreciate your hustle, but we’re only hiring through direct applications.
BuildBetter | Senior Engineer (Backend, Full-stack) | Full-Time | Remote (US) | 170-200k base + equity | Visa Sponsorship not provided
BuildBetter is the product operations platform for customer-led teams. We've built an AI-first product that lets our customers, like Rappi, n8n, and Posthog, automate the operations work that lets them provide their customers with world-class product experiences.
We're looking for two senior engineers to join the team; our headcount has remained small while growing revenue, and we're now bottlenecked by development speed in a way that will make you invaluable. You'll have real ownership over your code from product ideation to customer support, and we'll be making substantive product updates weekly. We're looking for team players who are as fun to work with as they are productive, and are willing to compensate these two rolls commensurately - our aim is to be in the 95th percentile of equity compensation, and we expect that in exchange we'll have value-aligned employees who will help us grow the business.
Joining us will mean solving hard problems at the frontier of AI adoption, including:
- maintaining performance at scale
- building and maintaining rich frontend user experiences that maintain the standards of usability and delight that our customers know us for.
- building agent and workflow systems that automate real work for customers
- playing around with the latest models to figure out new experiences that we can offer our customers as cutting-edge models get released monthly
- building automation that's grounded in supporting product teams rather than automating them - our bet is that this is the likelier outcome out of the current generation of AI systems
Stack: Postgres / TS (Nest + React) / Hasura / EKS / S3 / LLM APIs / Python
Benefits:
- unlimited PTO
- $100/mo education stipend
- flexible hours: we measure productivity in terms of outcomes, not time, so as long as you're able to stay aligned, productive, and in regular communication, we don't really care what hours you work
- health insurance
Please reach out to: nikhil (at) buildbetter (dot) app
Thrive Career Wellness Inc | LLMOps Engineer | Hybrid - Toronto (Canada) | $140-160k [https://thrivemycareer.com/]
We’re looking for someone who is (or can quickly become) strong in end-to-end LLMOps: building and optimizing LLM pipelines, managing inference performance, improving reliability, and supporting production AI features. You’ll work closely with our Staff Engineer and Data Engineer on a small, highly technical team.
We don’t have hard requirements around degrees or specific model frameworks - but you do need hands-on experience with LLMs, vector databases, embeddings, prompt optimization, and deploying/maintaining ML systems in production. Part of the process includes a practical take-home assignment (real-world, not leetcode), followed by technical conversations with engineering leadership.
We’re looking for someone who can think in systems, make good architectural decisions, and operate with a high level of ownership. Thrive is not a place where work is micromanaged - you’ll thrive here (pun intended) if you’re proactive, self-directed, and comfortable moving quickly without rigid structure. Happy to answer any questions here!
If you’d like to apply, please email bianca@thrivemycareer.com with your resume or apply on our company website
Konvu | https://konvu.com/ | Software Engineer | FULLTIME | ONSITE | Paris, France
At Konvu, our mission is to make security invisible. As AI transforms how code is generated, tested, and deployed, application must evolve too. Vulnerabilities should be automatically detected, prioritized, and remediated—without burdening engineers.
Behind Konvu are founders with deep roots in the security industry. As part of the founding team at Sqreen YC W18 (acquired by Datadog), we have firsthand experience in driving security solutions from concept to global impact.
We’re looking for:
* Application Security Engineer (Entry-level / Intermediate) https://jobs.ashbyhq.com/konvu/d46947df-8172-4b4d-b1d8-e3b6b...
* Software Engineer - AI Agent (Expert) https://jobs.ashbyhq.com/konvu/b40839d0-768b-4e80-a066-3d7cc...
* Software Engineer (Intermediate) https://jobs.ashbyhq.com/konvu/be7be978-08be-4672-a9e5-a559e...
* Head of AI https://jobs.ashbyhq.com/konvu/403ecd3d-7845-47d7-b24c-1fe18...
* Founding Account Executive (Enterprise) https://jobs.ashbyhq.com/konvu/dbac9d61-ab2d-4506-9315-28323...
Read more about how we're building Konvu the YC-way: https://konvu.com/blog/yc-culture
RhythmScience | https://www.rhythm360.io | Multiple Roles | REMOTE (US-Based Preferred) | Full-time
RhythmScience is a cardiac data management company turning complex healthcare data into actionable insights for providers and patients. We're a remote-first team building software that directly impacts cardiac patient care.
If you enjoy building reliable software alongside experienced and respectful colleagues, we'd love to hear from you!
Data Engineer - Build and maintain ETL pipelines, data models, and analytics infrastructure. 3+ years experience with Python, dbt, BigQuery, and orchestration tools (Airflow/Dagster).
Software Engineer - Ship features across backend and frontend, automate clinical workflows. 3+ years with Python/Django, Vue, PostgreSQL, CI/CD, and observability tools.
Senior Software Engineer - Scale K8s infrastructure, build test automation, partner directly with other technical teams. 5+ years, expert Python/Django, K8s, AWS. Healthcare/HIPAA experience preferred.
Email your resume and a few words that best describe your career trajectory hn@rhythmscienceinc.com
TryHackMe| Growth Engineer | Remote - UK/EU |https://careers.tryhackme.com/jobs/6527370-growth-engineer | €60-100k
TryHackMe is the fastest-growing online cyber security training platform. Our mission is to make learning and teaching cyber security easier by providing gamified security exercises and challenges. Having only been around for handful of years, we've grown to more than 6 million community members and our growth isn't slowing down! We’re looking for a Growth Software Engineer to join our cross-functional Growth teams. You’ll blend full-stack engineering with experimentation - shipping code that directly moves acquisition, activation, and retention metrics.
Our interview process is 3 rounds -and very fast. Please apply or email me for more details neha.pandit@tryhackme.com
Remake.ai | Founding Software Engr (or Cofounder) | Full-time | Remote (worldwide)
Apps for robots - home vacuums, quadrupeds, drones, humanoids, etc. Think Apple remaking ordinary phones into smartphones with apps & app store - only for robots.
Status: $1M pre-seed, prototype MVP works, pre-traction, ~16K ARR, manufacturing partnership(s) forming, headcount 2 full-time + 3 part-time
Founding Software Engineer (or Cofounder) - full stack, ML, embedded
Email iliao at remake dot ai
Column (https://column.com/) | San Francisco, CA (ONSITE) | Full Time | Software Eng (Infrastructure), Software Eng (Backend), Software Eng (Product)
Column is building the infrastructure that powers the US dollar globally. We're a software first company, but also own a nationally chartered bank that we've built from the ground up. We're currently processing trillions of dollars annually (yes, that's with a T), supporting some of the largest and most sophisticated companies out there like Wise, Bilt, Brex, Ramp, Mercury and dozens of others.
Started by the founder of Plaid (plaid.com), Column is focused on keeping an extremely lean and experienced team: currently 10 engineers that all report to the CEO. We are looking for an ambitious infrastructure, product, and backend engineer (one of each) that want to build incredible software from first principles.
Profitable and 100% owned by employees and founders.
Apply here: https://column.com/careers
Feel free to email me with any questions: praful@
Arcol | Senior Software Engineer | NYC, SF, or Remote (US/Canada) | Full-time
Arcol (arcol.io) is a small, high talent density team building the future of building design - a future that's collaborative, fast, and intuitive. We're a web-native, fully collaborative 3d design tool modernizing the experience of architectural design for teams of all sizes.
We're looking for senior engineers with experience in modern web technologies - some of our key technical building blocks are Typescript, Rust, wasm, WebGL - and a strong ownership mindset. Experience with computational geometry, computer graphics, or similar a strong plus. This role sits at the intersection of solving deep technical foundational challenges with shipping a product that solves real problems for real people.
Reach out to me directly at thomas@arcol.io or peruse our careers page (https://www.arcol.io/careers) - we'd love to hear from you!
Greptile | Software Engineer (junior, senior, staff)| San Francisco ONSITE | https://greptile.com
Greptile is building AI agents that catch bugs in pull requests. Over 2,000 teams including Brex, Whoop, and Substack use Greptile to review nearly 1B lines of code every month.
We're a team of ~20 in San Francisco, working on things like better agent evals and sandbox execution environments.
We've raised $30M to date, including our recent Series A led by Benchmark.
Stack: Typescript
Open roles: greptile.com/careers
Salary ranges: $140k-270k base (depending on seniority) + $40-100k/yr equity
Peregrine helps critical institutions make better decisions and improve operations by unlocking the value of their data. SF / NYC / DC | In-office | Full-time | $130,000 - $275,000
[Leadership] Engineering Manager (SF) https://grnh.se/s7yxefzs5us
[Leadership] Staff SWE, AI (SF) https://grnh.se/0w7ot24o5us
Staff SWE, Product Security (SF / NYC) https://grnh.se/b2kbmt3j5us
SWE, AI (SF, NYC, DC) https://grnh.se/yl9kuqrg5us
Sr Software Engineer (SF, NYC, DC) https://grnh.se/gwf63pot5us
Sr Product Designer (SF / NYC) https://grnh.se/s96svypy5us
Sr Design Engineer (SF) https://grnh.se/z8ev1cgu5us
Product Manager (SF) https://grnh.se/kyvpq2ww5us
Onton.com | Fullstack & Research Engineers | San Francisco, CA | Hybrid
Join us in pioneering the future of e-commerce search. 1M+ MAU growing rapidly. Large seed round raised from top-tier VCs and individuals with backgrounds from Google, Amazon, OpenAI, Stitch Fix, Whatnot, Stripe, and more.
We're a hard-working team of 10. We have an office in Jackson Square with a great view that we're looking to fill with other high-performance people!
Tech-wise, it's React/Typescript + Julia, if that's interesting (no worries if you haven't used it). We've also built our own graph and vector DB to cope with the scale, and the foundations of a neuro-symbolic AI agent that learns more about the world on every search!
Job posting and more information here → https://onton.com/careers
We read and respond to every application.
Stellar (https://stellarcs.ai) | Founding Software Engineers | Amsterdam, the Netherlands | Full-time | No Visa Sponsorship
Stellar is building the go-to AI voice agent platform for customer support, enabling incredibly human-like customer service over the phone. We're a young and rapidly growing startup that has already proven traction, with a number of well-known companies among our initial customers.
To see some of our AI voice agents in action, see https://www.stellarcs.ai/demo-showcase
We're looking for founding software engineers to help us scale Stellar's platform globally. As one of the first members of our engineering team, you’ll play a key role in Stellar's journey and have the opportunity to help shape our architecture, engineering culture and product and engineering roadmap.
Tech stack: Go, Node.js, Typescript, React, Next.js, Encore Cloud, GCP
What you’ll do:
- Build performant APIs and backend services in Go and Typescript (Node.js)
- Develop Stellar's frontend in React, TypeScript and NextJS, to allow companies to effectively design, test, deploy and monitor their AI voice agents
- Design a scalable, fault-tolerant system architecture that can handle large volumes of concurrent real-time audio conversations & agent interactions while maintaining low latency
- Work on Stellar's AI agent framework, at the intersection of software engineering and AI engineering
- Design and implement a platform that meets enterprise standards in terms of security, compliance, resilience and data privacy
- Build API integrations with external systems to enhance the capabilities of Stellar's agents
- Help shape the early engineering culture as one of the first hires of a young and growing tech startup
Why join: you'll be joining at a pivotal time in our growth, in a role with a high degree of ownership and strong growth potential. Join a small but talented team, coming from high growth startups and scale-ups such Framer, MessageBird and Adyen.
More details about the role here: https://www.stellarcs.ai/careers/software-engineer
Apply: Send us an email at info@stellarcs.ai, and mention you came from HN. Note that we do not provide visa sponsorship, and will only proceed with candidates who are able to work from our office in Amsterdam (~4 days in-office per week)
Vestwell | Senior Software Engineer | HYBRID - NYC; Austin; King of Prussia, PA | https://www.vestwell.com/careers/7510610003 | $145K - $160K base + bonus & equity
I'm the hiring manager for this role. Please see the job description for details, but I'm looking for someone who is, or is able to become, proficient in backend development for a public nest.js API suite using TypeScript. We don't have any hard requirements like a CS degree or prior nest.js experience, but candidates do have to complete a TypeScript coding challenge. It's a real-world problem, no leetcode. In total, our interview process is only 3 rounds, and we move pretty quickly. We also want someone who has systems design experience and good technical leadership skills. You also have to be self-motivated. We use a pull rather than push process, so work isn't assigned to people, and you have to be good at working efficiently without many hard deadlines or micromanagement.
Happy to answer any questions here! If you'd like to apply, please email shane.vierra [at] vestwell [dot] com with your resume.
Thunder Compute, YC S24 | https://www.thundercompute.com | In-person in San Francisco
Hiring 4 full-time Software Engineers for low-level C++ systems work (HFT skillset), reporting to the CTO, team ex-Citadel, ex-Aquatic, ex-Bain
We're a cloud provider using GPU virtualization software to arbitrage GPU prices.
To our customers, we are a direct substitute for Runpod, Lambda, Coreweave, etc. with a simple UX and low prices.
Our advantage is we have spent 3 years bringing research technology to market which lets us use each GPU more efficiently than competitors. We can buy GPU compute, make it more efficient, and resell it at 60%+ profit margins.
We recently closed ~$4.5M of funding to triple our team size with a focus on recruiting the world's best low-level talent.
If you're cracked at building C++ systems software, on noncompete and bored, or looking to do something more meaningful than creating liquidity (you can tell most of our team is from HFT), reach out.
To apply: email met at carl@thundercompute.com and mention HN. I read every email.