Costa Security | Chicago/Bay Area/Remote (US Time Zones) | Full-Time | Staff/Lead Engineer & Software Engineer | https://careers.costa.security

Costa is building Zero-Trust AI infrastructure to help enterprises safely deploy and scale agentic AI. Our product enables enterprises to create powerful AI agents and workflows—accessible via app or API—without compromising on security.

Our founding team previously built a zero-trust platform for securing complex enterprise environments—experience that gives us a unique edge in solving the hardest problems in AI security. Now, we’re building on that foundation with an AI Gateway that delivers enterprise-grade access, control, and performance for the next generation of AI tools.

We’re an experienced startup team, with our CEO having taken his last company public.

We're hiring for two roles:

> Staff / Lead Engineer

- Strong experience designing and building production systems end-to-end

- Deep expertise with Ruby and Rails

- Hands-on experience building with AI tools and working with emerging AI Protocols (MCP, A2A)

- You lead with curiosity and ship with urgency

> Software Engineer

- 2–5 years of experience

- Experience with Rails and Turbo

- You’ve shipped real features and want to level up fast in a high-ownership environment

- Interest in secure systems and modern AI application development

We're mainly based in Chicago and the Bay Area, but we are open to remote team members available in US time-zones. We value clarity, action, and building things that last.

Apply here: https://careers.costa.security/

Foxglove | Onsite / Hybrid | Full Time or Contract | https://foxglove.dev/

Foxglove is the leading observability stack for robotics and physical AI. We accelerate robotics development through industry-leading logging, cloud dataset management, and visualization/analysis for multimodal data. We're well funded (Series A, ~35 people), and assembling the most talented team in the industry to build a platform for all robots. Sound interesting? Join us!

Prior experience working in the robotics industry is desired but not mandatory for most roles.

** San Francisco, CA **

- ML / Robotics Engineer, Dev Relations (python, c++, rust, ros, lerobot)

- Principal Research Scientist, Physical AI

** Sunnyvale, CA **

- Staff Software Engineer, Frontend / Visualization (typescript, react, webgl, rust / wasm, etc)

https://foxglove.dev/careers

Charge Robotics | Multiple Roles | Full-time | Onsite / Hybrid | SF Bay Area

Hi HN! We’re a YC-backed, Series-A startup building robots that build large-scale solar farms.

Check out a video of our first system here! https://youtu.be/zz2fp1y5z2e

It turns out that construction companies literally can't build solar fast enough, so what we're doing is a crucial part of switching the grid over to renewable generation.

You’ll be a key contributor, helping bring our next generation of mobile solar factory to life.

Come work with us if you love:

* Fast-paced prototype development with software and hardware components

* Making a positive climate impact through your work

* Hacking on massive construction equipment!

Robotics Software Engineer: https://www.workatastartup.com/jobs/51266

Mechanical Engineer: https://www.workatastartup.com/jobs/64008

Avy | Staff Engineer / Startup Polyglot Engineer | San Francisco or Salt Lake City | Onsite (Hybrid) | Full-Time | https://www.avy.ai

We are an early-stage, well-funded startup making humans and computers work together more efficiently. Experienced team from Apple AIML and other great companies.

We will be opening several roles soon, but are previewing this one early: Staff Engineer / Startup Polyglot Engineer.

You'll enjoy this role if:

- You like going 0 to 1 with high ownership: moving features and products from idea on a napkin, to prototype, to engineering UI, to shipped and polished product

- You are innovative, get satisfaction out of learning new things, and thrive in an environment of uncertainty and opportunity

To succeed, you should:

- Have the wisdom to know when to take the fast route vs when to step back and clean up your mess

- Be capable and excel on your own, but be humble and communicate well with others as projects require more collaboration

- Be versed across many programming languages (e.g. from C++/Java/Swift to Go to JavaScript or Python)

- Have worked on many types of projects and software -- have you built servers, written games, shipped native apps, and vibe-coded (kidding) web apps? If so, you're a fit.

- Be versatile and work both high level and low level, on old tech and new. Have you both prompt-engineered an LLM AND tweaked the code that decodes tokens in your own local LLM runner? If so, you're a fit.

All said, we're looking for the stereotypical "startup engineer" who can move between different components, be creative, be flexible, take ownership, and get things done. We have a complex, challenging product, but one that's amazing to work on and that will soon change how people think about working with each other and with AI.

Email us at Email is hidden.

sketch.dev, hiring full-time engineering in SF. $200k and significant early equity.

Working on reinventing programming.

Fanatics Collect and Live | Multiple Roles (eng) | Los Angeles | Onsite | Full Time | https://fanaticscollect.com / https://fanatics.live

We're building the best experiences for collectors.

Hiring for Staff+ level roles across frontend, backend, and DevOps in our LA office:

1. Staff Frontend Engineer: https://fa-exki-saasfaprod1.fa.ocs.oraclecloud.com/hcmui/can...

2. Staff Backend Engineer: https://fa-exki-saasfaprod1.fa.ocs.oraclecloud.com/hcmui/can...

3. Staff DevOps Engineer: https://fa-exki-saasfaprod1.fa.ocs.oraclecloud.com/hcmui/can...

waipu.tv (EXARING) | https://www.waipu.tv Munich, Germany - ONSITE (hybrid 2-3 d/w) | Headcount ≈ 120

Germany’s #1 live-TV & VOD platform (2 M+ users, >5 Tbit/s peak on our own CDN). We build almost everything in-house.

Stack: Kotlin, Go, React / React Native (TV apps), AWS, Kubernetes

Open roles

* Technical Program Manager - 4 + yrs delivery / TPM experience

* Tech Lead Web-TV Platform - React Native

We offer

* 30 days PTO, learning budget, O’Reilly

* Employer-paid health & disability insurance, EGYM Wellpass

* Dog-friendly office, competitive € salary

Interested? → Email is hidden or https://www.linkedin.com/in/nilsjuenemann/

Cenith Innovations | Senior Software Engineer | Raleigh, NC | Hybrid (2 days) | Full Time

Develop software to help the US Army solve pressing, tactical issues using a modern tech stack.

https://www.linkedin.com/jobs/view/4210893037/?refid=h5uv4xc...

Perch | ONSITE - New York | Full-time | https://perch.app

Perch is an aggregator for all of the best writing on the internet (e.g. blogs, newsletters, substacks, etc.). We've raised $6M from Naval Ravikant, Alexis Ohanian's 776 Ventures, and a few others.

Hiring 2 founding engineers and a founding designer: https://perch.app/careers

Continue | ONSITE - San Francisco | Full-time | https://continue.dev

Continue is building an open-source AI code assistant along with a hub of models, rules, and tools. Our VS Code and JetBrains extensions are primarily written in TypeScript, but we write small amounts of Kotlin (for JetBrains), Rust (for performant codebase indexing), and Go (for easy distribution of a CLI).

We're hiring for junior, mid-level, and senior full-stack software engineers.

You can find the openings and apply here: https://www.ycombinator.com/companies/continue/jobs