Beacon AI | San Carlos, CA | Hybrid (On-Site) | Full-Time | www.beaconai.co Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit. At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability.

We’re hiring Lead Engineers with 5-9 YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles:

++ iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox] ++ Senior Security Engineer [SIEM, IDS/IPS, vulnerability scanning, encryption]

++ Infra/Backend Engineer [Tech Stack: AWS]

++ WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React]

++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT]

Join us at beaconai.co/careers. Mention in the application that you saw our post on HN.

Y Combinator | Product Engineers on YC's own team | San Francisco | Full Time | $185K-$485K

I'm Ryan, an EM and engineer here at YC. We have a small, 18-person software team with no PMs -- engineers own everything end-to-end.

We build the software behind YC's $6B in investments: tools that help partners evaluate thousands of startups per batch, AI-powered apps that founders use every day, and platforms like Work at a Startup that connect candidates with YC companies. Engineers get unlimited AI tokens -- both for development and to build AI-powered products. What wouldn't you build to help founders + YC with that much firepower?

What makes this different from other roles:

* You'd learn more about startups here than you could possibly imagine. Every batch brings hundreds of founders building things across every industry, and you're right in the middle of it.

* We attend Demo Day, founder dinners, and work directly with partners and many of the companies. (They make great products!)

* We pay well, offer carry in the fund (like equity), and provide generous relocation support if you're not in SF yet.

Two roles open:

* Product Engineer -- full-stack, own the product lifecycle. Rails/React stack. Build tools that power how YC invests in and supports startups. It's a wide range, and sometimes it feels like labs-like work, other times it feels like a supersuit to power founders and our Partners like Garry and Jared.

* Community Builder and Software Engineer -- hybrid role. Run YC's talent-facing programs (meetups, tech talks, career expos) AND build the software that makes them scale. You need to be a great engineer and LOVE to build and support communities.

We're also exploring a Technical Chief of Staff role to work with one of our GPs -- someone who can think analytically, drive operations, and scale what they do with software.

Checkout more about the roles, and email me directly if you're excited to learn more about startups than you will anywhere else - ryan@ycombinator.com

https://www.ycombinator.com/careers

Cloudpepper | Senior Platform / DevOps Engineer | Remote (CET overlap) or Brussels | Full-time | $150k–$180k | https://cloudpepper.io/careers/platform-engineer/

We run the platform behind 10,000+ Odoo instances and we're looking for a Senior Platform / DevOps Engineer to join us.

Stack: Symfony/PHP, Ansible, Linux, PostgreSQL, Nginx, Python.

This is a senior role that spans both sides of the platform: backend work in Symfony/PHP, and ownership of the Linux + Ansible automation underneath. You'll be the person making sure the whole thing keeps humming as we scale.

We're a small team with high ownership and very little bureaucracy — if you like shipping over slide decks, you'll fit in.

Remote is fine as long as you can overlap with CET, or you're welcome to join us in Brussels.

Full role and application: https://cloudpepper.io/careers/platform-engineer/

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are now possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching 50 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our engineering, product, data, and adops to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Manager (Game Experience): https://crazygames.recruitee.com/o/remote-product-manager-ga...

* QA & Automation Manager: https://jobs.crazygames.com/o/remote-quality-assurance-autom...

* Ad Operations Manager: https://jobs.crazygames.com/o/remote-ad-operations-manager

* Sr Digital Analyst (Ad Monetization): https://jobs.crazygames.com/o/remote-sr-digital-analyst-ad-m...

CoVar | Durham, NC | https://covar.com/ | Full-time | ONSITE

CoVar is a small R&D company specializing in machine learning and software development for defense and healthcare. We're looking for a jack-of-all-trades who can: prototype computer vision algorithms, build Python web services, wrangle large sets of data from disparate classes of sensors, ... any or all, with the only hard requirement being eagerness to learn.

Visit covar.com for more information on our current openings!

If you are trying to find affordable penetration testing vendors without compromising on quality, this site is a good place to start: https://penetrationtestingvendors.com it gives you a clear list of vendors you can actually trust.

SpruceID (YC W21) | REMOTE (US-Based Preferred) | Full-Time | spruceid.com

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users.

The demand for trusted digital ID is accelerating as AI deepfakes begin to destroy most of the ways we use to verify identity today. How private or secure is it to hold your driver's license or passport up to a webcam to get a bank account? Was it ever private or secure? Stable diffusion can break so much of this already. Society will need trusted digital IDs and credentials. Our mission is to allow them to be controlled by individuals, with safeguards to prevent descents into surveillance states and checkpoint societies.

We are the main implementers of category-defining initiatives such as the digital ID program for the California DMV, and the verifiable digital credentials program in Utah. We are private sector participants in NIST's National Cyber Security of Excellence initiative for privacy-preserving digital ID.

We are hiring skilled engineers who care about making a real impact in improving public services, digital autonomy, and user privacy for the world. We work closely with public sector agencies, and have high regard for public servants. We have a strong engineering and customer-oriented culture, and are not simply a SaaS product or AI wrapper. Our roles are not for the faint of heart: you will be expected to work hard and learn a lot in this role.

Our engineers are ambitious to get outcomes for our customers and their constituents. On any given day, they may write great Rust/C#/TypeScript, deal with mainframe dumps, read policy documents, respond to technical RFIs/RFPs, manage on-prem environments, implement new NFC + Bluetooth protocols in Swift/Kotlin, create CI/CD processes that enforce W3C accessibility guidelines and i18n requirements, rewrite lost specs from disassembled binaries, figure out stablecoin payments, and design new protections for public key infrastructure. It is a team effort, and people with T-shirt shaped skills are able to collaborate and learn a ton from each other every day.

We are interested in candidates who want to be proud of the meaningful impact they make for society, even if it takes time to get right. This is not the right job for someone who wants to "join a cool new AI startup" that implodes or exits in under a year.

See our roles here: https://jobs.ashbyhq.com/spruceid

Gain Compliance | Sr Software Engineer | Remote (USA) | Full-time | ~$160k | https://join.gaincompliance.com

Hey this is Brian from Gain Compliance, we've had success hiring out of a hacker news thread before, so let's give it a spin again.

We are a small company that builds financial reporting tools for the insurance industry. While the domain might be foreign to most, we are having a lot of fun building modern web software with React, Python and Node running on GCP infrastructure. You'll be joining 7 other engineers split into two full stack product focused teams.

We've been around over 10 years, are profitable, and value empowering our customers to breeze through their boring compliance tasks, building great teams that focus on outcomes over features, and work place stability.

We wrote a lot more over at https://join.gaincompliance.com if you are interested.

OpenVPN Inc. | AI Platform Engineer | REMOTE | Full-time | $140,000 - $150,000 per year

Come work at OpenVPN! Yes, THE OpenVPN!

You'll own everything from developer tooling and internal AI workflows to cloud infrastructure and governance-defining standards, security, and cost controls from scratch.

If you want to build the AI layer for a real company (not just models, but the systems around them), this is a high-ownership position shaping how AI gets deployed, used, and scaled across the org.

We want to use AI to improve productivity and efficiency and make our employees even better. This role will shape the future of the company.

Apply here: https://careers.openvpn.net/o/ai-platform-engineer

Mapbox is hiring a Geospatial Data Engineer on our Boundaries team. We use postgis, trino and iceberg to build and validate topologically accurate geodata.

Full job description is here: https://jobs.ashbyhq.com/Mapbox/2fc1e9b6-8d13-4cb6-8271-a2f6...

MongoDB | Senior/Staff/Lead Site Reliability Engineers (SRE) and Infra SWE, Multiple Teams | REMOTE (US) or HYBRID (NYC, Dublin) | Full-Time

We are looking for experienced Site Reliability Engineers and Infrastructure Software Engineers to help build, scale, and secure the foundation of MongoDB Atlas, our globally distributed, multi-cloud database platform running across AWS, GCP, and Azure.

SRE at MongoDB is a builder role. We are heavily focused on making the platform more scalable, resilient, secure and self-service.

We have open roles (Senior, Staff, Lead) across several of our core Infrastructure teams:

- Infrastructure Security (InfraSec): Building infrastructure security controls and security observability tooling leveraging eBPF and Linux security mechanisms.

- Fabric: Building out service mesh, networking, and internal traffic routing.

- Storage Layer Services: Building our next-generation disaggregated storage architectures.

- Fleet Management & Deployments: Automating the lifecycle, deployments, and control planes of massive multi-cloud Kubernetes clusters.

- Atlas Infrastructure: Building core infrastructure operations on hundreds of thousands of Linux servers.

We're looking for engineers with a strong systems mindset who have:

- 5+ years of experience in SWE, SRE, or similar roles.

- Proficiency in at least one programming language: Golang, Rust, Python, C/C++ etc.

- Deep understanding of Linux internals, networking, distributed systems, and/or Kubernetes.

- Familiarity with at least one major cloud provider (AWS, GCP, or Azure).

- A builder's mentality: you think about failure modes, observability, and operability alongside correctness.

For any questions, or to apply directly (please mention HN) email: hani.benhabiles+hn@mongodb.com

You can view our open roles at: https://www.mongodb.com/careers/jobs

Level 12 | Full Stack Web Developer - Python, JavaScript, SQL | Mid-Level & Senior | REMOTE | SALARY:$95K-145K+ | https://www.level12.io/careers/

Level 12 is a software consulting and custom development agency. We have mid and senior level positions. Our job descriptions are written by developers for developers. No HR fluff here, we want you to know what you are really getting into:

https://www.level12.io/careers/

- We have a commitment to transparency and offer a "no surprises experience" throughout the interview and hiring process. We value candor...as evidenced by the length of our job description. :)

- Our CEO prefers the title CED, Chief Executive Developer. Engineering and operational concerns don't take a back seat when potential sales come to the front door.

- You will be working remote with a team that is all working remote and has been for years. Let's make the best use of our time by not commuting.

- We practice and preach sound development practices. You are likely to learn and grow as a developer while working here.

- You are committed to automated testing of all the software you write (our apps typically have 92%+ test coverage).

- We have a no-drama office policy. We value and cultivate enjoyable working relationships among team members. No jerks allowed!

- We emphasize work/life balance and adopt policies that make sure our people don't get burnt out. For instance, our PTO/Vacation policies are designed so that you actually use them.

- If you apply, we guarantee that we will give you a response, whether "yay" or "nay". No black holes here!

- Hiring status & updates: https://github.com/level12/careers

Back by Sequoia Capital, Peregrine is the operational AI platform powering decision making and operations SF / NYC / DC | In-office 4 days | $130,000 - $275,000

[Leadership] Engineering Manager (SF) https://grnh.se/s7yxefzs5us

8+ yrs - Staff SWE, AI (SF) https://grnh.se/cq0caps45us

8+ yrs - Staff SWE, Product Security (SF / NYC) https://grnh.se/b2kbmt3j5us

SWE, AI (SF, NYC, DC) https://grnh.se/yl9kuqrg5us

Sr SWE (SF, NYC, DC) https://grnh.se/gwf63pot5us

Sr SWE, Networking (SF) https://grnh.se/tdpez89u5us

Sr SWE, Data Governance (SF) https://grnh.se/ue4zfbjo5us

Sr SWE, Data Infrastructure (SF, NYC, DC) https://grnh.se/bq138yn05us

Sr Product Designer (SF / NYC) https://grnh.se/s96svypy5us

Sr Design Engineer (SF) https://grnh.se/z8ev1cgu5us

Product Manager (SF) https://grnh.se/kyvpq2ww5us

Neon Health | AI in healthcare | Hiring Eng, Product & Growth | SF, Remote (North America)

- Senior Backend Engineer | SF, Remote (North America) | Full-time | $175-225k + equity - Product Manager | SF | Full-time | $121-177k + equity - Account Exec | SF | Full-time | $120-350k + equity - Growth Specialist | SF | Full-time | $105-$137k + equity

https://neonhealth.com/

We’re mission-driven capitalists: making life-saving drugs more accessible, and building a $200B+ company on the scale of Palantir or ServiceNow.

Traction: profitable and growing fast. Landing 7+ figure contracts to enterprise healthcare customers.

Team: built by exited founders, YC & MIT alum, ex-Tesla, ex-Google engineers.

Top investors: funded by elite Silicon Valley VCs who've backed unicorns like DoorDash, Lyft, and Mammoth Biosciences. And strategic healthcare investors with deep industry connections.

Outsized impact & opportunity: work at the intersection of agentic AI, healthcare transformation, and life-changing patient outcomes.

If you want to work on a team of A-player athletes, doing the best work of your career, and helping get life-saving drugs to the people who need them, apply here:

https://neonhealth.com/careers (and make sure to mention HN!)

Do you want to work on distributed systems? We are building the stack for running agents in production.

https://github.com/agentspan-ai/agentspan

Apply: https://job-boards.greenhouse.io/orkes/jobs/4998231008

https://job-boards.greenhouse.io/orkes/jobs/4894213008

https://job-boards.greenhouse.io/orkes/jobs/5203462008

All the roles are in in-office in Sunnyvale, CA

eventfirst | Senior Full-Stack Engineer | Berlin, Germany | REMOTE (CET) | Full-time

We are applying AI to organize corporate events.

We are looking for a senior engineer with at least ten years of full stack experience, a strong focus on product and UX, and optionally some experience building LLM based products. Currently we are focussed on building tooling that enables us to capture domain knowledge from experts to streamline prompt creation and evaluation. Our tech stack is Typescript, React, Next.js and Tailwind. On the backend we use Drizzle with Neon, deployed and monitored via Vercel. Please note that we are working in the CET timezone. We have pre-seed funding from a major US VC and are experienced founders. You’ll be working alongside the founders (ex-Apple, ex-Airbnb, ex-Tulip, ex-Tourlane) and will have a chance to shape the company, product and of course the engineering culture.

Apply here: https://eventfirst.jobs.personio.com/job/1646275

Vivodyne | Senior Full Stack Software Engineer | Full time | Onsite (5 days) SF

Our robots grow thousands of human tissues and test them at scale, so we can predict which medicines will work safely before they reach patients. You will build polished, high-performance web applications using React with FastAPI on the backend and Postgres as a database.

https://job-boards.greenhouse.io/vivodyne/jobs/5120631007

Senior Software Engineer (Python) Newport Beach, CA (hyrbid)| Full Time

https://www.researchaffiliates.com/about-us/careers/software...

WHAT WE’RE LOOKING FOR: We seek experienced and versatile Python engineers passionate about creating efficient, lightweight, and robust code. As part of a small team you will collaborate with researchers and other investment professionals to transform ideas into production systems. This role involves maintaining code, developing software libraries, and managing cloud-based resources. To excel, we expect a strong understanding of Python’s internals, including memory management and data structure performance characteristics. Extensive experience with the standard library, including modules like itertools and functools, along with advanced language features such as decorators, generators, and type annotations, is essential. We embrace modern development approaches such as test-driven development, peer review, and continuous integration and improvement. Team members actively engage in all stages of the development process, from planning to completion. Our firm values curiosity, authenticity, responsibility, and collaboration. We encourage open feedback, diverse opinions, and shared responsibility for maintaining a high-quality code. Our success is measured by team productivity, not individual output. We respect and support each other’s growth.

WHAT YOU’LL BE DOING: • Collaborate with teams of software engineers and finance professionals to develop, optimize, and maintain code. • Implement rigorous testing practices, adopt continuous integration and continuous deployment, and ensure high standards in code quality. • Conduct and participate in code reviews, pull-requests, and professional development activities to stay current in relevant domains. • Develop software on Linux environments and deploy in AWS. • Contribute positively to team and firm culture by embracing our core values.

MINIMUM REQUIREMENTS: • A bachelor's degree or higher in Computer Science or a related field. • At least three years professional experience using Python. • Fundamental knowledge of core computer science concepts, including algorithms, data structures, performance characteristics.

HIGHLY DESIRABLE: • Experience with Linux and command-line environment. • Experience with cloud environments and infrastructure as code tools. • Familiarity with NumPy and dataframe libraries. • Experience in other programming languages such as TypeScript, Rust, or C. • Knowledge of quantitative finance and/or financial data.

Please submit resume and cover letter to humancapital@rallc.com and say you are from Hacker News Who's Hiring.

exe.dev | full time member of technical staff | sf bay area only

competitive salary, meaningful early equity, 2 days a week in the downtown sf office

come build a cloud. we are doing everything from custom hardware to custom ssh servers to our own global load balancer. very senior small high-trust team looking for someone we can rely on to get done whatever is most important in the stack for the business. some days that means patch the vmm. other days it means figure out passkey quirks.

more about what we are building here: https://crawshaw.io/blog/building-a-cloud email me at david@exe.dev.

Lantern | Software Engineers (Python, Full-Stack) | NYC (Onsite) | Full-time | withlantern.com Lantern is building AI-powered revenue intelligence—autonomous agents that turn cold outreach into warm conversations. We detect buying signals across your tech stack, prioritize opportunities, and help B2B sales teams focus on deals that actually close. We're early, agentic-first, and moving fast. Senior Software Engineer: You'll own complex technical problems end-to-end—translating customer needs into scalable architecture, optimizing AI model efficiency through prompt engineering, and shipping features that directly impact how revenue teams operate. We want bold ideas and people who push boundaries.

Junior Software Engineer: You'll work across our stack (Python, FastAPI, Next.js, React) alongside senior engineers, contributing to real features from day one. Great fit if you're hungry to learn, ship fast, and grow with a startup building cutting-edge agentic systems.

New Grad Software Engineer: Entry point for recent grads excited about AI and agentic systems. You'll get hands-on experience with our modern data stack (Postgres, ElasticSearch, ClickHouse, DuckDB), Kubernetes/AWS deployment, and Temporal.io workflow orchestration while shipping production code.

This role is based in our Manhattan office (4 days/week in-person). Full health and dental coverage.

Apply: https://forms.gle/kEi5MDDiaJKdyN3fA or email maksym at withlantern.com with your resume.