We're looking for a *Technical Lead* to help shape the high-performance trading systems powering our periodic auction matching infrastructure. This is an engineering-first leadership role where you'll spend the majority of your time building production software while guiding technical direction, mentoring engineers, and leading some of our most challenging initiatives.
We build production systems in Rust and are looking for engineers with meaningful Rust, C++, or Java experience, particularly from backend or systems-oriented environments. We're also hiring exceptional Systems Engineers interested in tackling low-latency, high-throughput distributed systems at scale.
We're especially interested in engineers who:
* Lead through technical excellence while remaining deeply hands-on * Have built complex backend or distributed systems in production * Are passionate about performance, concurrency, and correctness * Enjoy mentoring engineers and driving technical direction
*ESTIMATED COMPENSATION:* Salary range: *$200,000-$250,000* with eligibility for a discretionary annual bonus.
*CONTACT:* [careers@onechronos.com](mailto:careers@onechronos.com). Please include *"Technical Lead | HN"* in the subject line.
Category Labs (formerly known as Monad Labs) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After raising $225M in series A funding, led by Paradigm, we are growing our team.
We’re the team behind Monad, a high-performance, EVM-compatible Layer 1 whose public mainnet is now live. We write the core software that runs it: a parallel-execution EVM, a custom state database, and a BFT consensus client, all developed in the open.
Senior Software Engineer (C++ / Rust): https://jobs.ashbyhq.com/category-labs/a0af69a1-8a77-4bda-b5...
Senior Software Engineer, Formal Verification: https://jobs.ashbyhq.com/category-labs/4717412e-8243-4eb9-be...
Senior Software Engineer, Compiler: https://jobs.ashbyhq.com/category-labs/e5c34899-cea1-4d25-be...
Smart Contract Engineer (Solidity): https://jobs.ashbyhq.com/category-labs/776ce314-aa12-471b-92...
We are hiring software engineers who enjoy solving important real-world problems and working close to hardware; who learn new domains quickly and prefer practical solutions over over-engineered systems or unnecessary complexity.
You’ll work on the projects best suited for you. Projects range widely, and include:
- Scientific tools
- Automation & robotics (Linux & ROS level)
- Embedded C/C++ (typically owned by dedicated firmware engineers, but software engineers are welcome to learn!)
- Linux, CUDA, Server engineering for our AI safety, security, and verification work
- Custom simulation software (usually python)
- Data analysis pipelines (python)
- Organisational tooling (Typescript, react, postgres, etc.)
Structure: Small teams of software, mechanical, electronics, and firmware engineers build end-to-end systems, typically shipping within a few months.
APL is hiring a Graphics Software Engineer to help build EO/IR and multispectral rendering software for integrated air and missile defense simulation and analysis. This is applied R&D/engineering work on a small multidisciplinary team supporting high-impact national security programs.
Looking for someone with strong C++ and GPU/rendering experience: low level graphics APIs; shaders; rendering pipelines; 3D geometry/linear algebra; performance-sensitive software; profiling/optimization; and experience working in large codebases.
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/.
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.
These are builder roles, heavily focused on making the platform more scalable, resilient, secure and self-service.
Some of the teams include:
- Infrastructure Security: 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.
You could be a fit if:
- 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
Senior Software Engineer (Fullstack, hybrid model 3 days in office, 2 home office days, Where: possible in Vienna- Austria, Ruggell - Liechtenstein, Valencia - Spain)
German language skills needed!
https://phios.group/en/about-us/career/
What we do: contracting
ABOUT FRACTILE Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the amount of time they take to produce useful outputs. We bet everything on the logical conclusion: that the only way to truly unlock this latent value, to make speed viable at scale, was to radically re-invent the hardware that we run our frontier AI models on. Ever since, we have been building chips and systems that tackle this problem: how to generate output at thousands of tokens per second, while handling the complexity and capacity challenges of operating large models at very long contexts.
We’ve recently raised $220M from Founders Fund and Accel and the most important work lies ahead. Come and join the mission!
THE ROLE As a Software Engineer you will be a core part of our technical team working alongside the hardware, software and research teams to solve cutting-edge problems in AI hardware, ranging from verification to simulation, alongside the best of the best (DeepMind, Apple, Meta…).
ABOUT YOU 1) You have exceptional ability. We look for pivotal IC contributions that solved the hardest problems in big tech companies or hedge funds; competitive hackathons, International Olympiad medals, or rank highly in other competitions like advent of code
2. You are a top engineer. We are not looking for specific languages or technologies - you will be a master of several, you excel at algorithmic skills and solving problems logically in any programming language. And you are very comfortable learning new skills on the fly. You like to work in Python and C++
3. It’s likely you have several years of professional experience, but we will make exceptions for the right candidate
4. You want to work with the best. And you are excited to work in chips, solving the hardest problems at the frontier of AI
WHAT WE OFFER 1. Competitive compensation and meaningful equity 2. A very cool office with London's best views 3. Private medical insurance and pension benefits
If this sounds like you, ping carmen@fractile.ai
I don't think I can afford hiring someone in north america, I'm not a company, this is a small project that'll take more than a year
I'm looking for someone who understands C/C++ and would be willing to learn C++20. The codebase is small (<100k lines), and you'll be working with me to complete a project. I'll help you learn C++20 and various tools. I don't mind if you know very little, but you'll need to understand every line you write and be able to explain it to me. You'll be expect to problem solve alone.
Email me something to look at. JurassicTyler@proton.me I don't need a resume. I rather look at code you written entirely yourself. Pick a specific file you think is interesting.
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.
Ecosmic is on a mission to reduce threat exposure in space by building software for Space Situational Awareness. To achieve this, we built a team of flight dynamics engineers and computer scientists to build & package in-house algorithms into easy-to-use, reliable, and secure products. As an example, our platform recently allowed us to identify a series of close approaches in GEO involving Russia's Luch/Olymp-2 and a Western telecommunications satellite, possibly attributed to SIGINT activity.
We're hiring a Senior DevOps Engineer (mid-level candidates are welcome too!) to aid the effort of unlocking on-premises deployments of our algorithms with Kubernetes, and to contribute to the evolution of our platform.
Our stack includes Python for backend services and high-level algorithm tooling, C++ for performance-critical components, AWS for cloud infrastructure, and Terraform for IaC. We currently use managed serverless services, and we’re beginning a gradual migration from C++ to Rust for its reliability guarantees.
You’d join a team of three software engineers who love working in such a fantastic domain. I currently take care of most of the infrastructure work with the team, and we’re looking for someone who can help us tackle this new challenge.
Apply here, mentioning HN in the cover letter: https://careers.ecosmic.space/jobs/7609407-senior-devops-eng...
When you look at the headers of major websites, you’ll see us. If it has to be performant, secure, scaled worldwide, and always-on, it uses Fastly.
We're a globally edge cloud platform for performance and security, emphasizing open standards, sustainable engineering, and resilience-by-design.
We're hiring across compute, security, platform engineering, network and edge protocols, release engineering, network architecture, client services engineering, and more.
Rather than building walled gardens, we co-founded the Bytecode Alliance, heavily upstream our work to open standards, actively author IETF drafts, and power the global infrastructure for open-source Python, Rust, Ruby, OpenStreetMap, and much more.
- The Stack: Rust, C/C++, Go, Javascript, Typescript, WebAssembly (Wasm/WASI), Wasmtime, Cranelift, eBPF/XDP, QUIC, HTTP, TLS, TCP, Varnish/VCL, Linux kernel internals, distributed systems, professional services.
- Apply: https://www.fastly.com/about/careers