E2B | Distributed Systems/AI/DevRel Engineers | Full-time | San Francisco/Prague (in-person only) | $100k - $300k + equity (0.1% - 0.3%) | https://e2b.dev

Hi, I'm Vasek. CEO of E2B (https://e2b.dev). We're building an open-source infrastructure for AI code interpreting/code execution in our Sandboxes.

We have customers like Perplexity, Vercel, Hugging Face, You.com, and a lot of new exciting startups building in AI space. We have revenue, are growing, and raised over $11M. We're hiring engineers all over the board to work on our infrastructure, SDKs, AI projects, and user dashboard.

We're a team of 15, the core team is immigrants from Europe that moved to San Francisco. We work from our office in SF and in newly opened office in Prague. Both are in-person. Two technical co-founders that have known each other for 15 years.

We're looking for:

- Distributed systems engineer to work on our infrastructure that's powered by Firecracker and Nomad.

- AI engineer to help us build more opinionated AI codegen tools on top of our sandboxes (think our version of Next.js)

- DevRel engineer to help us inspire more developers by creating mini projects, examples, integrations, and help us with our Discord community.

If this sounds interesting to you, shoot me an email at vasek at e2b.dev. We've found some great people on HN before so looking forward to hearing from you!

Nango | Full-stack, backend & infra engineers | Remote, EST timezone | https://nango.dev/careers

Nango is the most comprehensive product integrations platform for developers.

Fully remote, open source, dev tool & dev infra.

Expert team of veterans (Netlify, Algolia, Uber).

Backed by YC & top company execs (Cloudflare, Retool, Notion, Calendly, Sendbird).

Serving 400+ companies, 5k GitHub stars, community of 2k developers.

<10 team & fast-growing. We need you :)

Monadical.com | Senior AI/ML engineer |Senior Full-Stack Engineer |Full-Time Montreal | REMOTE (Canada)

We're a consultancy committed to building software that outlasts us. We work on a wide variety of interesting projects, including building unified data formats for neuroscience labs to share data sets, developing custom medical software for doctors, creating a brand-new MOBA game, and developing platforms for real estate agencies, crypto, and more. We're looking to hire people, who are driven and want to play a lead role in growing an exciting company. Our goal is to be a workplace with a strong focus on learning, where client projects provide a base of capital for us to all work on dream projects of our own. We have an inclusive, transparent culture with a public company principles handbook.

We’re seeking:

- Senior AI/ML engineer with a strong background in designing, implementing, and optimizing machine learning models.

- Senior Full-Stack developers strong at Python and/or JS, with experience in client relations and project management. Experience with AI, ML, and mobile development is a plus.

See the full description and apply here: https://careers.monadical.com/ If you have any questions, drop us an email at apply at monadical dot com

Some perks of working with us include:

• Work from home (we’re fully remote!) • Flexible working hours • Six weeks of paid vacation • Competitive salary • Strong culture emphasis on individual autonomy and impact on company direction

Margins | [Backend, Data, iOS] | REMOTE (SF Bay Area preferred) | Full-time

We're building a home for readers online, starting with an iOS app to track and discover books: https://margins.app/download

We just went from 0 to 100k users in 2 months, raised a seed, and are now hiring 2-3 more engineers. If "craftsmanship" and "books" resonates, we'd love to chat: Email is hidden

SwiftUI, TypeScript, some Python, GraphQL, Postgres, Supabase, Vercel

pganalyze | Senior Product Engineer | REMOTE (US/Canada) | Full-time | $160-200k + equity | https://pganalyze.com

At pganalyze, we're redefining how developers optimize one of the world's most popular databases, PostgreSQL. Our software gives companies like Atlassian, Robinhood, and Notion the tools to solve their most complex Postgres performance challenges, ensuring their mission-critical applications run smoothly at scale.

For our Product Engineering role you will be responsible for driving feature development from concept to writing code to deployment. Sometimes you might have to dig deep into Postgres internals to explain information correctly in a visual way. Recent examples of work done by our product engineers include the launch of our Query Tuning Workbooks feature, our Buffer Cache Monitoring functionality, or our integration with Plan Statistics provided by some Postgres-as-a-service providers.

Details on https://pganalyze.com/careers/senior-product-engineer

Interested? Email me (the Founder & CEO) at lukas AT pganalyze.com - or fill out the form on the website.

Sensay | senior full-stack engineer | REMOTE UTC ±4 | Full-time | Contractor €60K - €85K EUR | Equity possible At Sensay, we're on a mission to shape the future of AI personal replicas. As we expand our development team, we are looking for a talented senior full-stack engineer to help build outstanding features that our customers love.

As a senior full-stack engineer, you will be responsible for designing, developing, and maintaining our applications using Next.js, Supabase, and TypeScript. You will collaborate closely with product owners, UX specialists, and other developers to deliver high-quality software solutions that meet the needs of our users

Technical Requirements:

- Strong experience with Next.js and TypeScript

- Proficiency in front-end technologies such as HTML, CSS, and JavaScript.

- Experience with API design and development, including RESTful services.

- Familiarity with databases and data modeling, particularly with PostegreSQL and Supabase is a plus.

- Understanding of Agile methodologies and experience working in collaborative team environments.

We have a team of more than 10 software engineers that is constantly growing. Full flexibility and minimal meetings.

Send me a message directly: Email is hidden

Epistemix | Pittsburgh | Hybrid/Remote(US) | Full Time

Epistemix enables healthcare organizations to increase revenue and improve health outcomes by understanding the most likely impact of decisions and identify target audiences by determining relevant customer attributes and relating them to real individuals.

- Senior Full Stack Software Engineer https://epistemix.com/careers/full-stack-software-engineer

RevEng.AI | London + remote (US + Europe) | Full-Time | https://reveng.ai/about#jobs

RevEng.AI is building foundational AI models to identify malicious threats and weaknesses inside software at the binary level. We're a seed stage startup having raised $4.25m from top tier VCs across the US and Europe.

Senior AI Researcher | £80-160k + equity

We're looking to hire a Senior AI Researcher to advance our state of the art AI models for binary analysis. You’ll play a key role in advancing our foundational ML models, pushing the boundaries of AI-driven program analysis.

Senior Frontend Engineer (react) | £60-100k + equity

We're looking for a design focused frontend developer to join our growing team. You will lead the UI design and implementation of our customer portal and web integrations.

To apply or learn more, email Email is hidden with "hn" in the subject line.

Stealth Startup | Email is hidden | Member of Technical Staff | Alamo Square, San Francisco, CA (ONSITE) | Full Time

We have been quietly building a new type of general frontier model since mid 2024. We are reinventing the entire LLM stack for real work, focused on reliability and decision-making. We are well funded with a small and fast moving team previously from OpenAI, Google Brain, Meta and Scale.

Please check out our website: hypesafe.ai

If you are interested, please include the following in your email (to Email is hidden):

- Your resume + GitHub + LinkedIn

- What are some of your previous experiences that you feel proud to share?

- What do you think is the biggest bottleneck from LLMs automating more work? (Bonus points: go deeper than just “reliability”)

- If LLMs actually were reliable, which industries would you be the most excited to disrupt?

- What are you unusually good at? Tell us about something impactful that you made and loved making – feel free to brag a little ( :) ). What challenges/obstacles did you overcome, and how did you choose the solutions or approach you did? In an ideal world, how would you want to apply your unique talents to your next role?

- Tell us about a time you received some tough feedback professionally. What was it? How did you respond to that experience? What did you take away from it?

Puma.tech | Remote-first with PST overlap | Engineering & Growth | $75-150k base & 200k+ equity | https://puma.tech

Hi all, I’m Yuriy, founder of Puma.tech. Previously worked as software engineer & developer advocate at Cloudant (YC S08, Acq. by IBM), Meteor (YC S11), Parse (YC S11, Acq. by Meta), and explored Ai/ML (computer vision for self-driving cars).

Puma Browser is focused on making LLMs easy to use on your mobile phone. Private by design.

We recently shipped an update with local DeepSeek R1 and it’s amazing how fast and capable it is even on iPhone 14 Pro.

Next step is making it do things for you, like a helpful assistant, and we’re excited to explore what the world of agents would look like.

We’ve raised Angel and Pre-Seed Rounds from some of the best builders in crypto and Ai: Illia Polosukhin (NEAR Protocol), Sridhar Ramaswamy (Snowflake CEO, Neeva, Greylock), Jason Warner (cofounder at poolside.ai, ex-GitHub CTO), Chris Larsen (founder of Ripple), Don Ho (Orange DAO, Quantstamp), Protocol Labs, SBI, Fenbushi, HashKey and more.

- We value Optimism, Kindness, Curiosity, Speed and Grit.

- Only two recurring weekly meetings to maximize state of flow: Monday all-hands, Friday Demos.

- Careful with growth and never had to do layoffs.

Open Roles: Eng (iOS, Android, Ai/ML, Browser Extensions), Based Social Media Intern; Internships: Eng, Design, Growth

How to Apply: visit https://puma.tech or email Email is hidden with your GitHub, a note on what you're most proud of building and what you'd like to build next.

Thank you!