Ask HN: Who is hiring? (September 2025)

Spacelift | Remote (Europe) | Full-time | Senior Software Engineer | $80k-$110k+ (can go higher)

We're a VC-funded startup (recently raised $51M Series C) building an infrastructure orchestrator and collaborative management platform for Infrastructure-as-Code – from OpenTofu, Terraform, Terragrunt, CloudFormation, Pulumi, Kubernetes, to Ansible.

On the backend we're using 100% Go with AWS primitives. We're looking for backend developers who like doing DevOps'y stuff sometimes (because in a way it's the spirit of our company), or have experience with the cloud native ecosystem. Ideally you'd have experience working with an IaC tool, i.e. Terraform, Pulumi, Ansible, CloudFormation, Kubernetes, or SaltStack.

Overall we have a deeply technical product, trying to build something customers love to use, and have a lot of happy and satisfied customers. We promise interesting work, the ability to open source parts of the project which don't give us a business advantage, as well as healthy working hours.

If that sounds like fun to you, please apply at https://careers.spacelift.io/jobs/3006934-software-engineer-...

You can find out more about the product we're building at https://spacelift.io and also see our engineering blog for a few technical blog posts of ours: https://spacelift.io/blog/engineering

Additionally, we're hiring for a new product we're building, Flows[0]. Mostly the same requirements and tech stack, without the devops bits. If you'd like to apply specifically for that, just mention "new product" in the cover letter field.

[0]: https://events.spacelift.io/devops-next

Roundtable | https://roundtable.ai | On-site San Francisco, CA | Full-time

Roundtable is a research and deployment company building the proof-of-human layer in digital identity. Roundtable seeks to research and build real-world Turing Tests, and to productize these developments in bot detection, fraud prevention, and continuous authentication.

We're hiring a Member of Technical Staff. This is not a typical “Founding Engineer” position. In particular, this role will involve more research than similar positions. You should be prepared to spend around half of your time on research and half on engineering.

The ideal candidate has experience in both. However, we don’t strictly require research experience as long as you have a strong quantitative background and an eagerness to learn. We do require proficiency in both web development (Javascript, Node.js) and Python.

If you're interested shoot an email to matt@roundtable.ai with your resume and a short blurb on why you're interested (note: we are unable to offer visa sponsorship at this time).

Rayni (https://www.rayni.ai) | Chicago - Hybrid or Remote | Full-time | Founding Full Stack Engineer

Mission: We accelerate scientific discovery. We are starting with helping scientists operate their instruments (like Mass Spectrometers) faster with our Gen AI-powered platform.

Impact: We help scientists develop new drugs faster, analyze diseased blood samples faster, study brain cancer faster, etc.

Funding (> $1.5M): Funded by tier-1 VCs, including winning the biggest academic accelerator program on the planet - New Venture Challenge at the University of Chicago. Past winners include Venmo and Grubhub, among others, over the last 25+ years.

Who are we hiring: 3+ YOE in full-stack engineering with a frontend focus (80%) and backend (20%).

You will: - Make fundamental decisions about the frontend stack and product vision - Work with scientists to convert their needs into features. - Long term: Help build the product engineering team, lead and mentor new engineers - Long term: Scale the product to millions of users

Complete job post: https://rayni.notion.site/Founding-Full-Stack-Engineer-2412a... More about the company, culture, and benefits: https://rayni.notion.site/Rayni-Careers-2312a8a0f8fe803ab5bb... Founding Story: https://polsky.uchicago.edu/2025/07/02/how-rayni-turned-scie...

Come work with me @ AllTrails and help lead our full-stack, frontend, backend, and mobile teams.

Role: Director of Engineering — AllTrails (San Francisco / Remote)

About Us: AllTrails is the most trusted platform for outdoor exploration, helping millions of people discover and enjoy trails every day. We’re consistently ranked among the top Health & Fitness apps and were named Apple’s App of the Year in 2023.

Role Overview: You’ll lead multiple engineering teams across the stack, set technical strategy, and work closely with product and design to deliver a high-quality experience for our global community.

What We’re Looking For: • 10+ years of software engineering experience, with 5+ years in engineering leadership • Experience managing multi-disciplinary teams (frontend, backend, mobile) • Strength in technical architecture, team development, and cross-functional collaboration

Compensation & Benefits: • Competitive salary, equity, comprehensive benefits, unlimited PTO, monthly “Trail Days,” and a collaborative, mission-driven culture.

I love AllTrails! I have logged 235 activities, 758 miles, including one I did earlier today. I'm not looking for a Director role, just wanted to say how much I enjoy using the app.