Posted by whoishiring 19 hours ago
Ask HN: Who is hiring? (July 2026)
Please only post if you personally are part of the hiring company—no recruiting firms or job boards. One post per company. If it isn't a household name, explain what your company does.
Please only post if you are actively filling a position and are committed to replying to applicants.
Commenters: please don't reply to job posts to complain about something. It's off topic here.
Readers: please only email if you are personally interested in the job.
Searchers: try https://nthesis.ai/public/hn-who-is-hiring, https://dheerajck.github.io/hnwhoishiring/, http://nchelluri.github.io/hnjobs/, https://hnjobs.emilburzo.com.
Don't miss this other fine thread: Who wants to be hired? https://news.ycombinator.com/item?id=48747975
PrairieLearn (https://www.prairielearn.com) is an open-source assessment platform used by universities across the US (Berkeley, Princeton, Michigan, Illinois, and others). We power mastery-based learning and large-scale exams.
We’re a small, profitable, early-stage company (bootstrapped, no VC) that is growing quickly. Our users love us and we have very high retention and rapid spread through word of mouth. As an early-stage hire, you’ll work across the stack and enjoy meaningful ownership from day one.
Tech we use: Node.js / TypeScript backend, Postgres, AWS, React. We’re also developing AI tooling, including LLM agents to help instructors create content, and vision-language models to help grade student work. PrairieLearn is open core: https://github.com/PrairieLearn/PrairieLearn
Details:
- Location: Remote (US only)
- Salary: $100k-$180k depending on experience
- Benefits: Stock options (0.5% - 1.5%), unlimited PTO, flexible hours
- Role: Full-time. (We’re not able to sponsor visas at this time.)
Apply at https://www.prairielearn.com/jobs-ashby?utm_source=YeEJ5MAKk...
For LLMs are you what modalities are you currently using? How good is the accuracy? Would be interested to learn more in an interview
We use web data to identify things like org structure, tech stack, and key projects (e.g., GenAI initiatives, cloud migrations). Our product already has strong product-market fit, early revenue, and happy customers — and now we’re ready to accelerate.
Our long-term vision is to become the world's best data vendor. Try the product at sumble.com.
We are a team of 25 with experience at companies such as Google, Meta, Stack Overflow, Rippling, Snowflake, Confluent and Kaggle.
We raised $38.5MM from Coatue, Canaan, Square Peg Capital https://techcrunch.com/2025/10/22/sumble-emerges-from-stealt...
ABOUT FRACTILE Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the amount of time they take to produce useful outputs. We bet everything on the logical conclusion: that the only way to truly unlock this latent value, to make speed viable at scale, was to radically re-invent the hardware that we run our frontier AI models on. Ever since, we have been building chips and systems that tackle this problem: how to generate output at thousands of tokens per second, while handling the complexity and capacity challenges of operating large models at very long contexts.
We’ve recently raised $220M from Founders Fund and Accel and the most important work lies ahead. Come and join the mission!
THE ROLE As a Software Engineer you will be a core part of our technical team working alongside the hardware, software and research teams to solve cutting-edge problems in AI hardware, ranging from verification to simulation, alongside the best of the best (DeepMind, Apple, Meta…).
ABOUT YOU 1) You have exceptional ability. We look for pivotal IC contributions that solved the hardest problems in big tech companies or hedge funds; competitive hackathons, International Olympiad medals, or rank highly in other competitions like advent of code
2. You are a top engineer. We are not looking for specific languages or technologies - you will be a master of several, you excel at algorithmic skills and solving problems logically in any programming language. And you are very comfortable learning new skills on the fly. You like to work in Python and C++
3. It’s likely you have several years of professional experience, but we will make exceptions for the right candidate
4. You want to work with the best. And you are excited to work in chips, solving the hardest problems at the frontier of AI
WHAT WE OFFER 1. Competitive compensation and meaningful equity 2. A very cool office with London's best views 3. Private medical insurance and pension benefits
If this sounds like you, ping carmen@fractile.ai
ChainSecurity is a young and innovative cybersecurity company that operates in the blockchain and cryptocurrency space. Our mission is to make the blockchain space secure and trustworthy for people, companies, and governments alike. We are proud of our security experts from the renowned universities ETH Zurich, EPFL Lausanne and others.
We are trusted by 100+ blockchain companies and established corporations with security audits and services. We have secured complex systems for top blockchain clients, such as decentralized finance (DeFi) projects, and multinational organizations, such as banks and industrial consortia. A ChainSecurity Auditor will review the most complex blockchain projects to find vulnerabilities which no-one else can. By using state of the art tools, expert knowledge and a deep understanding of the fundamentals, we secure projects handling billions, often forming the foundation in the new paradigm of an open financial system.
Your Responsibilities:
* Work directly with the developers of the most successful teams in the blockchain industry to audit their code and secure their products
* Contribute to our security tools and create new ones in collaboration with our internal research team
* Conduct security research and publish your findings
Requirements:
* Strong background in software engineering, focused on security relevant areas and most importantly being able to reason about complex code
* Experience with penetration testing, vulnerability scanning, threat modeling or similar is a plus
* Good knowledge of cryptography
* Proficiency with Linux and Git
* Good written communication skills
* Fluent in OOP programming language
Bonus Points:
* Formal Verification, White Box, Vulnerability Scanning
* Solid Blockchain Knowledge
* Consensus Algorithms
Join us here: https://www.chainsecurity.com/jobs/blockchain-security-engin...
Questions about the role? Contact: jobs@chainsecurity.com
CLEAR is building the secure identity company of the future. Our mission is to make experiences safer and easier—physically and digitally. With more than 38 million Members and a growing network of partners across the world, CLEAR's secure identity platform is transforming the way people live, work, and travel. Whether it’s at the airport, stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences.
Anterior is improving the experience of healthcare for everyone. Our agentic orchestration platform makes clinical decisioning frictionless for RNs and MDs.
About You: You have a passion for doing things The Right Way, you believe Less is More, you want to focus on Foundations of system design and architecture (pacelc, consistency guarantees), you care as much about what code you do not write, you’re tired of the hype treadmill and care about the fundamentals. You have battle scars from overengineered and underperforming slop, and you care about writing code that lasts.
- Langs: TS / Python - Infra: Nix, CDKTF, AWS
We’re hiring from infra to full stack. Come share your proudest firefighting story with us in an interview, bring your GitHub, and let’s see if we’re a good fit!
Dev log: https://xn--xp5a.anterior.app
saul@anterior.com
Opendate builds the ticketing platform powering independent music venues across North America.
We're looking for a senior engineer who is pushing the boundaries of AI-assisted software development.
Everyone says they use AI. We're looking for someone who has gone much further—someone who is constantly experimenting with new workflows, building agents, automating entire pieces of development, and rethinking what one engineer can accomplish.
Our engineering team believes AI is fundamentally changing what great engineering looks like. We want people who are helping define that future—not waiting for someone else to.
Our stack includes Ruby on Rails, React, PostgreSQL, AWS, Sidekiq, and Stripe, but we're far more interested in how you build than the specific technologies you've used.
If you're excited by questions like:
How can AI own an entire feature from design to deployment? What engineering work still requires humans, and what should be automated? How do we move dramatically faster while maintaining an exceptionally high bar for quality? What does an engineering organization look like when every engineer has AI teammates?
...you'll probably enjoy working with us.
If this resonates, we'd love to hear from you.
https://www.opendate.io/careers/senior-full-stack-software-e...
Hey HN, we’re ProxyBase. We’re building an API-first, fully headless SOCKS5 proxy network designed specifically for autonomous AI agents, LLM tool-calling, and large-scale web scraping.
Most traditional proxy networks operate in a bit of a gray area—they buy bandwidth harvested from sneaky, hidden SDK bundles embedded inside free apps. We're doing things differently:
100% Ethical Sourcing: We pay our node operators directly. People run our open-source CLI client to share their bandwidth and earn microcredits in real-time. It’s fully transparent, consent-driven, and compensated.
Built for Swarms, Not Dashboards: AI agents and automated workflows can provision, utilize, dynamically route (via metadata in the SOCKS5 auth string), and settle proxy fees entirely programmatically using US based stable coins without ever touching a manual web dashboard.
Our Tech Stack:
Backend: Rust (Actix-web, SQLite/DashMap, WebSockets, Yamux stream multiplexing) Frontend / Desktop: React, TypeScript, Tauri (our client-side bridge app)
What we're looking for:
Backend Engineer (Rust): Help us scale our high-concurrency SOCKS5-to-WebSocket relay gateway and real-time ledger settlement engines. Full-Stack Developer (TypeScript / Tauri / Rust): Own our local proxy bridging software, client-side developer portal, and integration libraries. If you like systems-level programming (TCP/UDP, tunnel multiplexing, concurrent state) and want to work on clean, developer-first infrastructure, we'd love to chat.
Drop us a line at
jobs@proxybase.xyz with a bit about what you've built.
Senior Software Engineer (Fullstack, Where: possible in Vienna- Austria, Ruggell - Liechtenstein, Valencia - Spain)
https://phios.group/en/about-us/career/
What we do: contracting
StatusPal helps engineering and IT teams detect, fix, and communicate incidents — monitoring, incident response, and status pages in one platform. We're small, profitable, and bootstrapped (no VC, no runway clock), with real revenue and customers. What we haven't built yet is a growth engine — that's this role.
We're hiring our first commercial hire to own go-to-market end to end: both marketing/demand (content, SEO, partnerships, paid) and sales (outbound, demos, closing). You'd wake up thinking about how we sell more, lean on AI to punch above your weight, and bring in freelancers or reps when the numbers justify it — running the whole function so it compounds without the founder in the day-to-day. Strong fit if you've done a hands-on 0→few-million at an early-stage B2B SaaS and want real ownership and upside over a big-company base.
Not a fit if you want a finished playbook, warm leads handed to you, or to be purely a marketer or purely a closer — this role owns the whole path.
I'm the founder and will reply to everyone. Full details + apply: https://statuspal.notion.site/Founding-GTM-Lead-39009d5544a7...