Senior Software Engineer, Firefox
Work on the browser engine in C++ and Rust, balancing performance, privacy and web compatibility.
1638 roles across 160 companies — filter by region or category.
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Clear filtersWork on the browser engine in C++ and Rust, balancing performance, privacy and web compatibility.
Build the mesh VPN control plane and client in Go, across every major operating system.
Own a product surface end to end — design, build, ship and support it — in a small autonomous team.
Turn SOC 2, ISO 27001 and HIPAA control requirements into automated evidence collection.
Guide customers through audit readiness cycles and keep renewals healthy.
Own payroll product for multi-country customers, from pay runs to filings and reporting.
Build detection and response capability for one of the most heavily targeted platforms in crypto.
Design and build features in a small team where engineers own product decisions end to end.
Ship LLM-powered features into Airbnb's travel platform, from prompt and retrieval design through evaluation and rollout.
Own developer tooling, CI throughput and local environments for the teams building Airbnb's travel platform.
Investigate intrusions and turn each one into durable detection coverage for Airbnb's travel platform.
Sit with customers, build the integrations they need on Airbnb's travel platform, and feed the rough edges back to product.
Train, evaluate and serve models that power Airbyte's open-source projects at production scale.
Build the ingestion, storage and query layers that every team uses to reason about Airbyte's open-source projects.
Own infrastructure-as-code, networking and capacity planning for Airbyte's open-source projects.
Own the lakehouse and streaming infrastructure underneath Amplitude's analytics platform, with an eye on cost and freshness.
Make the build, test and deploy loop fast for everyone working on Amplitude's analytics platform.
Design and run the multi-region cloud footprint behind Amplitude's analytics platform, with cost and resilience both in view.
Sit with customers, build the integrations they need on Ashby's product suite, and feed the rough edges back to product.
Turn model capabilities into dependable product surfaces across Ashby's product suite, balancing latency, cost and quality.
Own infrastructure-as-code, networking and capacity planning for Atlassian's product suite.
Investigate intrusions and turn each one into durable detection coverage for Atlassian's product suite.
Run the large multi-team efforts behind Atlassian's product suite from kickoff through launch.
Build the pipelines, feature stores and monitoring that keep models behind Atlassian's product suite reproducible and observable.
Ship LLM-powered features into Automattic's open-source projects, from prompt and retrieval design through evaluation and rollout.
Partner with engineering teams on threat models and secure defaults throughout Automattic's open-source projects.
Own the modelling loop behind Automattic's open-source projects — features, training pipelines, offline evaluation and online experiments.
Design and run the multi-region cloud footprint behind Automattic's open-source projects, with cost and resilience both in view.
Build agentic workflows and tool-calling systems on top of BrowserStack's developer platform, and own their accuracy in production.
Build detections and response automation covering the infrastructure behind BrowserStack's developer platform.
Own the lakehouse and streaming infrastructure underneath BrowserStack's developer platform, with an eye on cost and freshness.
Own the modelling loop behind Buffer's product suite — features, training pipelines, offline evaluation and online experiments.
Own model deployment tooling so research work reaches Buffer's product suite without bespoke glue each time.
Own the design system and the polish layer across Cal.com's open-source projects.
Train, evaluate and serve models that power Cal.com's open-source projects at production scale.
Deliver working implementations of Canonical's open-source projects inside customer environments.
Design and run the multi-region cloud footprint behind Canonical's open-source projects, with cost and resilience both in view.
Partner with engineering teams on threat models and secure defaults throughout Canonical's open-source projects.
Build the ingestion, storage and query layers that every team uses to reason about Canonical's open-source projects.
Train, evaluate and serve models that power Canva's design platform at production scale.
Turn model capabilities into dependable product surfaces across Canva's design platform, balancing latency, cost and quality.
Build the pipelines, feature stores and monitoring that keep models behind Canva's design platform reproducible and observable.
Own the AI surfaces inside Canva's design platform, deciding what to automate, what to assist and what to leave alone.
Own the design system and the polish layer across Chainguard's security platform.
Ship LLM-powered features into Chainguard's security platform, from prompt and retrieval design through evaluation and rollout.
Review designs, harden services and fix classes of vulnerability across Chainguard's security platform.
Turn model capabilities into dependable product surfaces across CircleCI's developer platform, balancing latency, cost and quality.
Own Kubernetes, deployment tooling and paved-road abstractions underneath CircleCI's developer platform.
Investigate training, alignment and evaluation methods that make the models behind CircleCI's developer platform more useful.
Deliver working implementations of Clerk's developer platform inside customer environments.
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