Remote Senior Security Engineer, Open-Source Browser

Mozilla seeks a Senior Software Engineer for AMO, delivering features and platform modernization across Python/Django-based systems.You'll drive architectural improvements, enhance automated moderation pipelines, and collaborate with engineers, reviewers, and community contributors to ship reliable software used by millions.You'll contribute to CI/CD...

Software Engineer (Open Source Contributor) Position: Software Engineer (Open Source Contributor) Type: Contractor Compensation: $50–$100/hour Location: Remote — Worldwide About the Opportunity We’re seeking experienced software engineers and open-source contributors to create realistic coding challenges that help train next-generation AI systems....

Filigran is seeking a Senior Software Engineer who is AI-first and hands-on, capable of driving AI-native engineering across our XTM Foundation. You will experiment with AI coding tools, build guardrails for safe deployment, and work with multiple product teams to embed AI into daily workflows. You will help the organization scale AI practices, contribute to...

Synthires is seeking a Software Engineer to contribute to open-source projects from anywhere in the world. You will help design and implement realistic coding challenges, build reinforcement learning environments, and create deterministic verifiers to evaluate solutions. Collaboration spans multiple languages including Python, Java, Rust, Go, C++, and...

Grafana Labs, the company behind the open observability cloud, is a fully remote organization with 1,600+ team members across 40+ countries. This Senior Engineer role on Pyroscope focuses on scaling a distributed database, improving profiling capabilities, and integrating with the Grafana stack. You will own end-to-end projects, drive operational excellence,...

Mozilla Corporation is seeking a Senior Software Engineer, Firefox Security, to design and implement enterprise security features that strengthen Firefox’s security posture across multiple operating systems. You will drive improvements to core security mechanisms and collaborate with teams to investigate issues and deliver robust fixes. The role emphasizes...

Mozilla Corporation is seeking a Senior Software Engineer, Firefox Security, to design and implement enterprise security features that strengthen Firefox’s security posture across multiple operating systems. You will drive improvements to core security mechanisms and collaborate with teams to investigate issues and deliver robust fixes. The role emphasizes...

Scopely is seeking a Senior IAM Security Engineer to design, build, and secure Scopely's identity and access management across AWS, GCP, SaaS, AI tooling, and remote access.This is a hands?on, cloud?first role focused on Terraform?driven automation, least?privilege design, and secure identity workflows in a fast?moving engineering environment.You will...

Location remote within Spain, Portugal, India, Poland, Italy (must have right to work) Reports to Director - Enterprise Solutions, Cloud & Service Role Overview We are looking for an experienced IT Architect – Linux & Open Source Infrastructure to design, evolve and govern our Linux server landscape and the broader open-source technology stack that...