Design, build, and ship cutting-edge security and hardening features for Firefox's enterprise users.
Advance Firefox's security architecture across multiple operating systems, including privilege isolation, trust boundaries, and cryptographic protocols.
Collaborate with distributed teams to investigate security issues and improve reliability, performance, and memory usage in a complex, multithreaded environment.
Develop reliable code for agent-based cybersecurity services across Windows, macOS, and Linux.
Own complex technical initiatives from architecture to delivery, mentoring engineers.
Collaborate with Product, Security, and DevOps teams on endpoint security solutions.
They build endpoint security software that protects organizations across major operating systems. The company values technical excellence, engineering ownership, and continuous learning in a remote-first culture.
Implement tracker blocking that stops hidden trackers on every site without slowing page loads.
Bring VPN and Personal Information Removal into the browser through the DuckDuckGo subscription.
Catch startup and responsiveness regressions automatically, so the browser stays fast as it grows.
We're DuckDuckGo, the online protection company on a mission to raise the standard of trust online. We're a remote-first team of 400+ that's been profitable since 2014, with annual revenue over $100m and a culture of trust, inclusivity, and empowered project management.
Design browser engine experiments to evaluate performance, correctness, and developer tooling.
Build engine-level prototypes for reliable programmatic interaction with dynamic web content.
Collaborate with the technical lead to assess trade-offs and shape new browser product direction.
Jobgether is an AI-powered job matching platform that connects candidates with hiring companies through skills-based screening. This role is posted on behalf of a partner company exploring browser technology with a small, technically focused team.
Lead and develop a distributed engineering organization across multiple time zones.
Drive technical roadmap and engineering excellence for scalable, secure, observable systems.
Foster ownership, continuous learning, and reliability practices across engineering teams.
They build developer tooling for identifying security vulnerabilities and code quality issues early in the development lifecycle. A distributed, collaborative culture across Canada, US, and Europe, emphasizing ownership and continuous learning.
Own the device software architecture end to end, from safety-critical control to secure cloud communication.
Lead a small firmware team while staying hands-on, driving fast iteration and clean interfaces.
Bring up new hardware, implement revenue-grade metering, and ship secure OTA updates.
ConnectDER develops the Meter Socket Adapter, a product that reduces the cost and interconnection time for solar energy, EV charging, and home battery storage. They are a venture-backed company of over 50 professionals with a collaborative, transparent, and team-oriented culture.
Partner with Sales to support strategic enterprise opportunities across DACH.
Lead technical discovery, solution design, and workshops with customer stakeholders.
Help customers evaluate and deploy Firefox Enterprise in secure, complex environments.
Mozilla Corporation is a non-profit-backed technology company that builds open-source software like the Firefox browser, used by over 225 million people monthly. The company is wholly owned by the Mozilla Foundation, and its culture emphasizes openness, trust, and user agency.
Design and implement high-performance networking code for the Zscaler Client Connector, predominantly using Rust.
Build solid, testable, well-documented foundations to improve code quality across multiple desktop platforms.
Debug complex network-related problems and collaborate with product managers and teams to deliver customer-impacting features.
Zscaler accelerates digital transformation with a Zero Trust Exchange platform that securely connects users and protects against cyberattacks. The company's platform spans 200+ data centers, fostering ownership and collaboration.
Investigate complex web compatibility issues across browser platforms and determine root causes.
Reverse-engineer obfuscated JavaScript and design durable fixes across Mac, Windows, iOS, and Android.
Lead incident response and automate diagnostics using LLM-based tooling.
They focus on making websites work reliably across modern browser environments and platforms. The environment is remote-first, highly autonomous, and built around end-to-end ownership of complex technical projects.
Lead technical architecture and drive complex projects.
Write code, build prototypes, and contribute throughout the development lifecycle.
Mentor engineers through code review and technical discussions.
Thunderbird is one of the world's most trusted open-source email applications, empowering over 20 million people. Our small but growing distributed team includes more than 65 people across seven countries.
Develop and maintain Linux software across the full Ubuntu stack for next-generation silicon and hardware platforms.
Collaborate with silicon and technology partners on new architectures, optimization, and open-source contributions.
Work remotely with a globally distributed engineering team on Linux, AI, IoT, and emerging technologies.
They develop and maintain Ubuntu across next-generation silicon and hardware platforms, collaborating with global technology partners. The team works in a globally distributed, remote-first environment with a strong focus on open source and engineering excellence.
Design and ship code security analyzers blending deterministic detection with AI-driven analysis for vulnerabilities in code and dependencies.
Own initiatives end-to-end as the directly responsible individual, from design to delivery, while mentoring intermediate engineers through review.
Extend dependency parsing, SBOM handling, and automated remediation across GitLab's security analysis platform.
GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to improve developer productivity and accelerate digital transformation. Trusted by over 50 million users and more than half of the Fortune 100, it fosters a high-performance culture driven by values, AI adoption, and continuous knowledge exchange.