QuestDB | C++/Rust Database Engineer | REMOTE| | Full-time | https://www.questdb.com

Work with world-class engineers - including two teammates who placed in the top 10 of the One Billion Row Challenge (1BRC).

As a specialized database, QuestDB stores, processes and analyzes time series data in real-time, with a focus on reliability, extreme performance and simplicity. It provides best-in-class hardware efficiency and robust features, saving costs and accelerating time-to-value.

Our open source repository has gathered 16k stars and QuestDB is one of the fastest growing database in the category. We are a product-first company with a large community of developers. As a team, we are globally distributed, remote-first and backed by leading venture capital firms and Y Combinator.

Teams have had success with QuestDB across a wide range of industries, such as Financial Services, Energy and Space Exploration. Category leading companies such as OKX, Mizuho, and Airbus rely on QuestDB for large-scale, data-intensive production systems. Emerging and disruptive startups also leverage QuestDB to gain a significant edge within traditional industries.

To apply: https://questdb.com/careers/core-database-engineer/

TestDriver.ai | https://testdriver.ai | QA, Engineers, Customer Support | Austin / Remote | Full-time / Part Time 95% of companies are still wasting time manually testing due to shortcomings in Playwright, Cypress, and other frameworks. Developers rank testing as the #1 blocker to release. We've built an AI Agent that performs manual testing on it's own VM with complete desktop access. It works like a specialized "Claude Computer Use."

We're scaling our early sales and seeking QA engineers, customer support, and sales engineers.

Please DM Email is hidden

ARound (web-based augmented reality for sports) https://aroundar.com - a Stagwell company - https://www.stagwellglobal.com | Backend Engineer | Remote (Based in UTC -8/-7/-6/-5/-4 timezones only) | 20-40 hours a week TBD | Contract or contract-to-hire

Backend development in support of web-based augmented reality experiences and games for mobile devices. API integration and development. Management of cloud infrastructure and services.

Key technologies are Node.js, Rust, PostgreSQL, Digital Ocean. Experience with video streaming (RTMP, WebRTC). Some degree of familiarity with TypeScript, Vue.js, and Babylon.js is desirable.

Strong interest in sports is ideal (although fandom is optional).

I’m the hiring manager, no intermediaries. I’m not interested in hearing from outsourcing agencies or recruiters. Candidates only, please. Thank you. : )

Email is hidden

Promptwatch | Amsterdam, Netherlands | HYBRID/REMOTE (CET +/- 2h) | Full-time | https://promptwatch.com

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We’re helping companies rank and be visible in AI search /ChatGPT, Google AI mode etc. (GEO) and hiring a Senior Full-Stack Developer.

Work: Own app layer, real-time APIs & queues; ship end-to-end.

Stack: TypeScript, React 19/Next.js, Node/Fastify, tRPC, Postgres, GCP Nice to haves: ClickHouse, Elasticsearch.

You: 8–9 YOE, strong TS/React/Node.

Comp: €65k–€110k + equity.

Apply: https://promptwatch.com/careers/full-stack-developer (mention “HN: Full-Stack Developer”).

Valantor | US Hybrid / Remote | Full Time | Python Agent Engineer https://www.joinvalantor.com/agent-engineer

As an Agent Engineer at Valantor, you’ll work hand-in-hand with our customers to design and deploy intelligent agents that solve their most pressing document challenges.

This role is deeply collaborative and applied—you’ll be in the room with clients, understanding their workflows, and translating their needs into working AI solutions. It’s an opportunity to combine technical expertise in Python and prompt design with direct customer engagement, bringing the most advanced AI for unstructured documents into live production environments.

About Us

Valantor is a full-stack AI + humans platform purpose-built for the BPO industry. We’re tackling the hardest problems in document processing—insurance claims, contracts, invoices, and other unstructured files—where today armies of humans still do the work.

Our proprietary AI technology has been in development for more than six years, and we were among the first beta users of OpenAI in 2021, giving us a head start in applying frontier AI to real-world enterprise problems.

Our leadership team has built and exited multiple companies in BPO and enterprise software, with a track record of selling billions in solutions globally.

We’ve raised significant capital, completed multiple strategic acquisitions, and are already generating tens of millions in revenue. It’s a unique chance to help shape a company that blends startup energy with enterprise scale, backed by veteran operators with deep vertical expertise.

CampusOptics | Product Engineer | Hybrid ~2x/wk | Austin, TX | Full-Time

CampusOptics is an environmental health and safety platform for universities. We're hitting product market fit, quickly adding customers, and looking to add another product engineer to our engineering team of 5.

Most importantly, you're excited to work in a close-knit team to build features without bureaucracy and make a big impact in our Rails/Hotwire application. And you'll influence a product that makes a material impact on campus safety. The ideal candidate would have UI/UX/product sensibilities, and we're open to all levels of seniortiy.

I'm a founder, the CTO, and the hiring manager for this role. I got my professional start on "Who's Hiring March 2011", so I'm partial to candidates from here :)

You can see more details here: https://gist.github.com/jpcody/82f33ff98afedaca7018082933019...

To apply, I'd love to hear why you think you'd be a good fit and what excites you about the role at Email is hidden.

CourtDrive | Principal AI Engineer | REMOTE| Market | Full-time | https://www.courtdrive.com/

At CourtDrive.com, we are building an AI Docketing Assistant that enables law firms and other power courthouse website users to become more efficient by automating daily tasks. We’re based in Los Angeles but have a remote team worldwide (Canada, Europe, Armenia to name a few). Your role as Principal AI Engineer will be to lead CourtDrive's AI strategy through model evaluation, fine-tuning, and data collection. You'll work alongside our engineering team to bring AI features from concept to production, while elevating the team's understanding of language model capabilities and best practices. Your expertise will be crucial in determining how we can best leverage AI to enhance our solution.

This role offers a unique opportunity to apply deep language model experience in a product focused on transforming how law firms practice the business of law.

Testimonial from a team member: “Long story, but I worked there for maybe 6ish months part time a while back. They offered me full time, but I ended up going to a startup because I wanted to learn some specific technologies + up my skills in Data Science. That job was definitely good for some people, but it wasn’t as remote as they advertised it (had me fly in a lot), and the team was somewhat difficult to work with ;) I ended up starting my own consulting and at the same time CourtDrive reached back out to me (perfect timing). Point I was trying to make was that I went back to work with them because they were so nice to work with. Not super demanding and very open to listening to ideas/suggestions - just a pleasant environment.”

Full job listing and specific skills we are looking for: https://docs.google.com/document/d/16m4aoi_6vm8plrfbs4cbbbph...

To apply, email: Email is hidden

Fairwater Labs | Founding Engineer for dual-use startup focused on multi-modal data processing at the edge | Remote (US-based) | Full-Time | Competitive salary and significant equity | US authorized only

We are building a cutting-edge product leveraging generative AI and machine learning for multi-modal data processing at the edge.

Why join now? Backing from a dual‑use venture studio. Validated user stories, early wireframes, and early potential users are ready--your code ships to real operators fast. Co-Founder has extensive product background and experience driving go-to-market.

What you’ll do: Own the end-to-end architecture & tech / product roadmap – choose the stack, design data pipelines, secure cloud infra, and front-end. Develop and deploy AI/ML models for edge devices. Implement computer vision. OCR. Create video summarization pipelines to extract key events using transformer-based models or temporal analysis. Multi-modal systems. Edge-to-Cloud

You are:

Full-Stack. Edge AI deployment (ie. NVIDIA Jetson or Raspberry Pi.) Strong background in computer vision, OCR, and multi-modal AI, with familiarity in frameworks like OpenCV or Hugging Face Transformers. GovCloud experience.

Entrepreneur at heart—show us something you’ve built that shipped fast. Send a brief intro (or resume if you have it) + GitHub/portfolio to Email is hidden

Clio | Remote Canada if outside of Toronto, Calgary, or Burnaby. Hybrid 2 days/week if local | Full-time and permanent with benefits from day one, paid by us, CAD salary bands posted on job descriptions

Clio is the market leader in legaltech products and we recently raised a Series F round of 1.4B CAD to a valuation of 4B CAD, marking the largest Canadian tech funding in history: https://betakit.com/clio-tops-4-billion-cad-valuation-with-l...

We also intend to acquire AI legal research tech company vLex (Vincent AI) to build a data moat: https://betakit.com/clio-to-acquire-american-legaltech-vlex-...

Some stats: 300MM+ ARR with 90% retention and 30% growth YoY / no debts / fortunate to have never done any layoffs. 1500+ staff before acquiring vLex, 500+ engineers, 55 eng teams.

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Roles (all logistics and CAD salary bands posted on job postings):

+ Senior/Staff/Eng Manager, Databases (MySQL preferred but open to Postgres)

+ Software Developer, Mobile (React Native)

+ Staff Software Developer, Payments

+ Software Development Managers (30% hands-on coding, 4-6 direct reports)

+ Security Engineers (ELK, logging)

+ Intermediate/Senior Data Engineers (data platform and infra heavy, nearly no analytics work)

+ Senior ML Engineers (NLP, GenAI, agentic AI. Statistical inferencing and experimentation for building models from scratch, rather than integrating 3rd parties like ChatGPT)

+ Senior Software Developers (we use RoR but we are language agnostic during interviews, learn Rails on the job)

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Message Email is hidden and/or apply directly: https://www.clio.com/about/careers/engineering/

Bluesky | Senior Go Engineers, Senior Machine Learning Engineers, Senior React Native Engineers, Fullstack Engineers | Remote | https://bsky.social/about/join

Bluesky is building an open internet protocol (https://atproto.com) and a flagship social app (https://bsky.app). We're a company of 30 with a strong focus on fostering a high-agency, talented team. The golang roles are focused on building the internal platform with a whole lot distributed systems engineering; the ML is working on our many recommender systems and feeds; the RN & fullstack engineers are working on the social app and internal moderation tooling, respectively.

If you think social media - and the internet - could be better, apply here: https://bsky.social/about/join