whoishiring.jobs

Return | https://return.energy | Data platform engineer (EU only)

We are hiring a data platform engineer who will work on platforms that accelerate the transition to carbon-free energy. Return’s main activities are building and operating industrial-size Battery Energy Storage Systems and solar plants. Our operations are located in the Netherlands, Germany, and Spain.

You will be making a measurable (country-level) impact on the transition to renewable energy.

The tech team members have co-founded several companies and/or have experience with remote development teams since 2008. They will personally help you through most of the recruiting process (there is no recruiter involved).

If you call yourself an SRE, DevOps engineer, or a backend engineer, you are also more than welcome to apply!

More info at https://jobs.polymer.co/return

SafetyKit | AI Product Engineer | San Francisco, CA | ONSITE | Full-time | $150K - $220K + Equity | https://safetykit.com

We scrape the internet for illegal content, flagging drugs, endangered animals, transaction laundering, IP infringement, and hundreds of other violations. We work for payment processors and marketplaces including Upwork, Faire, Patreon, Character.ai, Substack, and Eventbrite.

Your role: Application/Product engineering in Postgres/Typescript/AWS. We need web scrapers, agent workflows, and LLM eval tools. They all need to be fast and reliable.

SafetyKit is started by repeat founders, YC-backed, and growing fast.

https://www.ycombinator.com/companies/safetykit/jobs

Loop is on a mission to unlock profits trapped in the supply chain (https://www.loop.com/article/unlock-profit-trapped-in-your-s...) and lower costs for consumers. Bad data and inefficient workflows create friction that limits working capital and raises costs for every supply chain stakeholder.

Loop’s modern transportation cost management platform uses our domain-driven AI to harness the complexity of supply chain data and documentation. We improve transportation spend visibility so companies can control their costs and power profit. That is why industry leaders like J.P. Morgan Chase, ABB, Estee Lauder, Great Dane, Emerge, and Loadsmart, work with Loop.

WSJ piece on Loop - on.wsj.com/3PE357W

1. Raised $100m+ from JPM GEP, Founders Fund, 8VC, Susa Ventures, Flexport, Index, and Expa.

2. 45+ paying enterprise customers with multiple-year contracts; 70+ customers in the pipeline.

3. High-caliber team of engineers and operators from Google, Scale AI, Flexport, Uber, Rakuten, Square, Meta, Stanford, Brown, Princeton, and Yale.

4. 7+ years cash runway

Fullstack Engineer San Francisco - https://job-boards.greenhouse.io/loop/jobs/4102236004

Fullstack Engineer Chicago - https://job-boards.greenhouse.io/loop/jobs/4830548004

Other roles at https://www.loop.com/company/careers

Quatt.io | Amsterdam, Netherlands | Full-time | Hybrid/ONSITE | https://quatt.io | climate tech

I'm head of Software at Quatt, a quickly growing scaleup building heatpumps to help fix climate change. Heating and cooling is 50% of all energy used in the EU. Heat pumps save 10 times more CO2 for each Euro spent on them compared to electric cars. We're building the most accessible and smartest heatpumps on the market. Our first product is live, the next ones announced, we have thousands of customers, tons of data, and I really like the impact we're having. We also raised €25 million for further expansion. I’m currently looking for a few roles for my department, as we believe having the best software will allow us to have the best product. Our backend and frontend is Typescript.

I mostly wanted to highlight the Team Lead for Team Boss, which builds all tools needed to run our multi-million euro business - and we are as software driven as we can be. Looking for someone who can drive that team to great heights.

  * Team Lead Team Boss (Engineering manager, Typescript)
  * Full stack developer (Typescript)

Now is a great time to join, as the software team is still small but growing quickly. These and other vacancies are on our careers page: https://www.quatt.io/working-at-quatt Email me directly ( my-hacker-news-username@quatt.io ) for questions or apply via the career page. We do look for people that can be in the office regularly, so not fully remote.

Hadrius | UI/UX Design | NYC (FiDi) | ONSITE | Full-time | $90k–$170k + Equity | https://www.ycombinator.com/companies/hadrius/jobs/ObynDF9-f...

Hadrius is a B2B SaaS app for legal and compliance teams in the finance space. We help our users save time and automate the tedious and predictable aspects of compliance. We're breathing life into an overlooked space and design is a big part of that - we're looking to bring someone on who will lead the team in design and lay the foundation for a strong design org in the future.

AI Insurance (YC W19) | Senior Software Engineer - Lead App Factory Specialist | Hybrid (San Francisco) or Remote AI Insurance (aiinsurance.io) is the platform that small-to-midsize insurance companies use to run every part of their business. Before we showed up, they used spreadsheets and filing cabinets – wasting as much as 60% of revenue on administrative expenses. We’re doing what Salesforce did for SMB sales teams, but we’re tapping into the over 10,000 insurance companies that waste $238 Billion dollars annually.

Looking for someone with experience building low-code / no-code platforms and experience designing and deploying a domain-specific language.

Apply here: https://wellfound.com/l/2APAJF

Tandem Health | Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and already have more than ~100~ 200 organizations using our product.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We’re expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure.

Even if we don’t have a role out for your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://tandemhealth.ai

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions

Datalab | NYC | Full-time | Software Engineer and Head of Business Ops | $250k-$350k + 1.5-3% equity | https://www.datalab.to

A significant % of useful data is locked away in tough-to-parse formats like PDFs. We build tools to extract it, like https://github.com/VikParuchuri/surya (15k Github stars), and https://github.com/VikParuchuri/marker (19k stars). We also run an inference API and product.

We do meaningful research (we’ve trained several SoTA models), ship product, and contribute to open source. We’re hiring for 2 roles to help us scale:

Senior fullstack software engineer

  - work across our open source repos, inference api, and frontend product
  - interact with our user community
  - you’ll need to be pragmatic, and embrace “boring” technology.  Our stack is fastapi, pytorch, htmx, postgres, and redis.  We deploy to render, and do inference with serverless gpus.
  - requires having built something impressive, ideally an open source project

Head of business operations

  - first non-technical hire
  - work across multiple areas, including finance, hiring, and sales
  - you’ll need to be extremely organized and able to get a lot done
  - requires experience leading operations at an early stage

Email careers@datalab.to if you’re interested - include a link to something you’ve built if possible. You can also read more here - https://datalab-to.notion.site/careers-jan .

Centry Capital | Founding Engineer & Senior Software Engineer roles | REMOTE (±3 hours CET) | https://centry.capital

Full-Time Revolutionising wealth management with AI-driven automation. Founded by repeat fintech entrepreneurs with multiple successful exits. Seeking a Founding Engineer and Senior Engineers to build our AI-powered digital family office platform. You'll architect and implement agent based AI/ML workflows. Ideal candidates: 8+ years experience building scalable systems and comfortable working across the entire stack: frontend, backend, data engineering, AI engineering, infrastructure and even product.

Experience operationalising AI/ML workloads, having a strong product sense and entrepreneurial mindset are requirements. Fintech experience is desirable.

Some core technologies: Next.js, Python, LangGraph, PostgreSQL, Kubernetes.

Compensation: Competitive base salary + equity. Apply: careers@centry.capital

Norm | New York City (NYC) Hybrid | Full-Stack Product Engineer | Full-Time | https://www.norm.ai

Norm is building AI that understands regulations for regulatory compliance. Our AI currently automates compliance determinations for federally regulated financial content, though our vision is to build a platform that can handle any regulation in any industry. As AI begins to permeate our society, Norm aims to become a critical building block for other AI systems that need regulatory intelligence. You can read more about our vision here: https://www.norm.ai/post/building-regulatory-ai-agents

We recently raised a $27m series A (on top of a $11m seed). We're growing very quickly and have major, household-name financial institutions as clients and investors. We're working on hard, interesting problems and want to push the boundaries of what's possible for AI-driven products. We're hiring for technical roles, including:

Full-Stack Product Engineer ($200-225k/yr): https://jobs.lever.co/NormAI/b71ce742-7b52-468b-9f1c-dd00210...

Legal Engineer ($175-225k): https://jobs.lever.co/NormAI/7cb40761-ef33-42a5-8831-d153632...

We're also hiring for many non-technical roles as well. The best way to apply is online through the links above (we review every application!) -- mention HN Who's Hiring in the additional information / cover letter section. Full list here: https://www.norm.ai/careers.

Kanary | REMOTE (US, Seattle Hub) | Product Engineer | Full Time

We’re building the fastest way to fight doxxing and digital stalking. Kanary automates data removal requests, fixes social media settings, and sorts through expert recommendations for what’s relevant. All from the privacy of your device.

Join our team of 5, backed by YC, 2048.vc, and Mozilla, and now funded by our customers.

Details: https://www.kanary.com/join-the-team Technologies: iOS, Python/Django, React/Typescript, AWS

Better Stack | https://betterstack.com | /^(Full-?stack|Frontend) Engineer$/i | Europe remote in UTC ± 3h

We are software builders at :heart: CEO is a software engineer, COO is a software engineer and you guessed it; CTO is an engineer, too.

We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address.

Apply at https://betterstack.com/careers/fullstack-engineer

How we operate:

- https://betterstack.com/careers

- https://betterstack.com/careers/engineering

- https://juraj.blog

ESG-X | Founding Full-Stack Engineer | Remote (Europe Only) or Munich (Germany) | www.esg-x.com

We are building the ESG Suite, a B2B SaaS platform for ESG strategy management. We're hiring a Founding Full-Stack Engineer to help us design, implement, and scale our platform.

Responsibilities: Build APIs with Python (FastAPI), develop frontends with React/TypeScript, optimize data pipelines (Postgres, MongoDB), and deploy infrastructure on GCP/AWS with Terraform.

Requirements: Strong skills in Python, React, TypeScript, cloud platforms (GCP/AWS), and infrastructure-as-code tools.

Why Join: Own architectural decisions, work on meaningful ESG tech, and enjoy competitive pay + equity with remote or Munich flexibility.

About You: You thrive in dynamic startup environments, enjoy taking ownership of end-to-end solutions, and have a passion for building scalable, high-impact systems. You’re technically strong, collaborative, and motivated to create tools that address real-world sustainability challenges.

Email paolo.mazza@esg-x.com to apply.

Scotch | Fullstack Software Engineer | REMOTE within US | Full-time | https://scotchnetworks.com

Scotch’s mission is to modernize one of the oldest industries on earth: the $1.6T beverage alcohol market. We’re starting by building the next-generation operating system for BevAlc retailers (POS, payments, backoffice, ecommerce). If you love Rails, solving real-world problems, and want to work with a very small team, we’d love to talk.

We are seeking a fullstack engineer with a proclivity for the frontend to join our very early stage engineering team. In this role, you will be responsible for developing and maintaining a high-quality, mission-critical web application using Ruby on Rails + Hotwire and following the best practices in modern web development. If you're amped about Hotwire/Turbo/Stimulus + Rails, we might be the right next stop for you!

Our tech stack: Ruby on Rails, Hotwire/Turbo/Stimulus, ViewComponents, PostgreSQL

For more details and to apply: https://jobs.gorails.com/jobs/full-stack-engineer-64897677

JUPUS | Development Lead | 100% Remote (Europe) | Full-time | 80k - 100k EUR | https://jupus.de/

For one of the fastest growing legal tech startups in Germany, we are seeking a Development Lead. Our stack is Python/Django (restframework) and TypeScript/Vue.js.

Apply here: https://join.com/companies/jupus/12960029

Graphite | Senior Software Engineer | NYC (Soho) | ONSITE | Full-time | $160k–$220k + Equity | https://graphite.dev Hi everyone! Graphite (Neo-backed company) is expanding our engineering team.

We raised $20M from Andreessen Horowitz, the founder of GitHub, the founder of PagerDuty, and the creators of React. Our team is 20+ strong with prior experience at Meta, Google, Airbnb, Stripe, DoorDash, Square, and Datadog. We’ve caught strong revenue traction with thousands of customers, including Snowflake, Vercel, Datadog, Asana, Brex, Ramp, and Square. Our whole team is based in our NYC office.

We’re building the world’s best tool for developers to ship code faster and more efficiently, including features like stacked pull requests and AI-powered code review. I’m looking for kind, smart, and passionate folks who would be excited to build a tool that they and all their engineering friends get to use daily!

What you’ll do:

- Design and implement new features for our developer platform.

- Collaborate closely with users to understand their needs and improve workflows.

- Work with a small, talented team in a fast-paced environment.

- Contribute across the stack, from frontend to backend.

What we’re looking for:

- Strong software engineering experience.

- Passion for developer tools and improving developer productivity.

- Excellent communication and collaboration skills.

- Willingness to work full-time onsite in our Soho, NYC office.

If you’re interested, please apply through our careers page here: https://graphite.dev/careers

CredCore | Engineering | Full-time | Remote (Anywhere)

CredCore helps companies analyze Credit Agreements using AI. Learn more at https://www.credcore.com.

We’re looking for someone to lead key engineering efforts. You should be good at modularizing and abstracting ideas, and be familiar with design patterns and software architecture. We're looking for (a) strong skills in Python and TypeScript, (b) experience working with Data Pipelines and tools such as Dagster, Metaflow etc, (c) ReactJS and/or other Front-end frameworks, (d) A good GitHub profile, blog, or other portfolio.

This is a full-time, remote role. If you’re interested, please reach out to me at jeswin@credcore.com.

Kodex | Full Stack Engineer | REMOTE (US) | FULL TIME | NO VISAS

ABOUT THE ROLE

We’re seeking an experienced Full Stack Software Engineer to join our growing team and help build the cornerstone of our business: our Law Enforcement Response portal. Kodex is an early stage startup so each engineer wears multiple hats. You will work as part of a small, talented team that includes engineers with experience at successful companies like Medium, HashiCorp, Microsoft, Mozilla, Meta, and Uber. In this role, you will:

- Work closely with our Director of Product to design, develop, and enhance features for our portal.

- Lead projects to optimize system performance, including database usage, encryption middleware, and front-end responsiveness.

- Participate in our on-call rotation (about one week every two months), where you'll address support requests, monitor metrics, and respond to incidents to ensure reliability.

- Review code and contribute to improving engineering best practices.

This role is ideal for full-stack generalists with T-shaped skills who thrive in fast-paced environments and enjoy taking ownership.

We're fully remote, the team is distributed across the continent. We meet up twice a year in various locations around the United States (past meetups were in Miami, Nashville, Seattle, and San Francisco).

We don't sponsor visas.

ABOUT KODEX

Kodex creates software that helps private companies handle lawful data requests from governments. Our founders have seen firsthand how difficult it is for public and private sectors to collaborate effectively–preventing real-world harm while respecting user privacy. Slow processes, clunky tools, and misuse by bad actors were common problems. Kodex was built to fix that.

Our platform streamlines case management for Law Enforcement Response and Trust & Safety teams. It combines secure workflows, communication, and file transfers with features like document encryption, audit trails, agency verification, account takeover detection, and API integrations—delivering a complete legal response solution.

Founded in 2021 and backed by Y Combinator and Andreessen Horowitz, Kodex helps companies securely and efficiently respond to data requests on time.

Email: anton+hn@kodexglobal.com

Eigen | Full-Time | ai product engineers | REMOTE (all remote) | Hiring GMT-8 to GMT+2

Eigen helps companies build world-class AI products, enabled by the cutting edge of AI and LLMs.

* we are a real business — profitable with $XM in revenue this year. We're hiring for our line of ed-tech products that help kids learn how to write and read.

* we need: smart, in the details, ai product engineers. Experience with typescript stacks is ideal.

* engineers excited about using AI both in their workflow and in products

* we're a smart team. ex. stanford ai lab, harvard, uber, tinder, superhuman, etc.

* the comp is quite good. See our job descriptions for more detail.

Apply at http://eigen.net/careers

HomeVision | Engineering | Hybrid SFBA (Remote+Onsite) | Full-Time | $150k-$220k + equity

I'm looking for an early-to-senior software engineer to work with me (CTO) directly. Our systems process millions of pages of documents a month for the mortgage industry and I am looking for a motivated product builder to build our next suite of products, focused on automated decision making.

Skills: practical, ship-today mindset with the ability to use quantitative reasoning to drive practical automation in a massive but antiquated industry.

Please email me directly vince+hn@homevision.co