NetBird | Berlin, Germany (or remote, CET/CEST overlap) | Full-time https://netbird.io/careers NetBird is open source networking and access control WireGuard-based overlay networks with zero-config peer-to-peer connectivity. Open source, built in Europe, used by thousands of teams worldwide. We're a small and growing team going up against (and working with) the incumbents in network security. Post Series A.

- Engineering Manager : You will take a huge part in leading and scaling our engineering org. Unblocking, scaling, hiring, you'll still read code and hold technical opinions that impact the product. We're not looking for a pure people manager. Networking/infra background is a plus. If you've scaled a team from 0 to 20+ and seen your product scale too, I'd love to talk to you.

- Senior/Staff Backend Engineer (Go) : the control plane: peer coordination, policy and access control, multi-tenancy, and keeping it all fast as customer networks grow into the hundreds of thousands of peers.

- Network / Client Engineer (Go) — the agent side: WireGuard, NAT traversal and hole punching, relays, DNS, and shipping one client across Linux, macOS, Windows, iOS and Android. If you enjoy debugging why one connection out of a thousand won't go peer-to-peer, this is the role.

- Solutions Engineer — technical, customer-facing, pre/post-sales. You'll be the person who architects a rollout for a 500-person company's network live on a call, and a great channel back into the roadmap.

- Account Executives :)

We have an office in Berlin and mostly work CET/CEST. We'd love to have you in the office with us, but if your experience is stellar we're happy to hire remote. We're scaling quickly, so this is a chance to join early and scale with us.

Apply at https://netbird.io/careers, please mention you found us on Hacker News in your application.

Flowstate (London, UK) — Founding Engineer — TypeScript / React / Postgres / AI

Flowstate (https://www.flowstate.inc) is building infrastructure for the emerging human + AI workforce.

Companies are rapidly adopting Claude, ChatGPT, Cursor, Copilot and internal agents, but most still have very little idea what that AI is actually doing, what it costs, what work it contributes to or whether it is making the organisation better.

We’re building the systems underneath that: an AI router and proxy, native macOS and Windows apps, attribution infrastructure that connects AI activity back to work and tools for understanding how humans and AI should operate together inside a company.

We’re a small early-stage team and this is a genuinely broad founding engineering role. You’ll work across product, infrastructure, integrations, desktop apps, AI systems and whatever else needs building. We’re looking for someone who has worked in an early-stage startup before and actually enjoys the pace, ambiguity and ownership that comes with it.

Details: - Location: London, UK - Working style: Hybrid, with regular time together in the office - Salary: £100k–£120k - Equity: 0.5%–1.5% - Benefits: Gym membership, breakfast and flexible hours - Role: Full-time

Apply: https://www.flowstate.inc/careers/

Avision GmbH | Full Stack Developer (Java + Angular/React) | Remote (Germany) | Full-time

We're modernizing old business software in relatively small teams.

Stack: Java, Spring Boot, Angular or React, Kafka, PostgreSQL, Docker, Kubernetes. GitLab CI/CD, Gradle and Maven are a plus.

We want: 2+ years with Spring Boot and Angular/React, solid SQL, German at B2 or better.

We offer: fully remote within Germany, 32 vacation days, flexible hours, overtime paid out or taken as time off, Windows or Linux laptop, sabbatical and workation options.

Send me an e-mail and I can give you a referral if I think you deserve it. Otherwise apply through the website.

Tahoma AI | tahoma.io | Austin, TX or Seattle, WA (ONSITE optional) | REMOTE (US) | Full-time | Founding Engineer

Tahoma builds AI agents that automate healthcare Revenue Cycle Management (RCM): eligibility, claim status, claim submission, denials, and payment posting. We're live in production with paying enterprise customers.

Our agents operate payer portals behind MFA, green-screen terminals over SSH, and Windows desktop software, where some actions are irreversible. They run on a deterministic orchestration layer we built in-house, with model calls as bounded steps, not the control loop.

Stack: TypeScript/Node.js, Playwright, computer-use agents, Claude, Postgres, Azure, K8s.

You'll get to own the core platform end to end and make the real architecture calls: resilience to portal changes, exactly-once guarantees, observability, and cost per run.

Team: Founder from AWS, the former UnitedHealthcare CIO, advisors from Microsoft Research and Shopify's AI team, and a remote engineering team in-flight.

Please write us at careers@tahoma.io with your resume and one thing you've shipped. You can see more at https://www.tahoma.io/careers

Thanks!

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Except for interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field. Masters or PhD is a plus. (Roughly 25% of our staff have PhDs.)

Technologies: Lots of C++23, Qt 6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and analysis projects use Python and C++. Web projects use Java and Typescript/React. We're a bit behind the curve on developer AI adoption, and we're okay with that.

Apply online: at https://www.stellarscience.com/careers/.

Flexibits | Android Software Engineer | Remote | Full-time https://flexibits.com/jobs

We make Fantastical and Cardhop, award-winning calendar and contacts apps for macOS, iOS, visionOS, and Windows. We are a small, fully-remote company spread across the US and Europe, and welcome anyone from around the world. We prefer candidates that are in time zones between US Pacific Time and Central European Time.

We're looking for an enthusiastic and experienced Android developer to help bring the joy of Flexibits apps to Android. This will include learning the ins and outs of Fantastical and bringing its magic to Android, all the way from the natural language parser to the beautiful user interface.

Tech stack: Kotlin, C#, Objective-C, Swift, AppKit, UIKit, SwiftUI, C, C++.