Antithesis
Senior Backend Engineer
Vienna, VA, USA · On-site · Senior · Full-time · Posted Aug 13, 2026
- Experience
- 5+ years of software engineering experience; exceptional systems engineers from other backgrounds are welcome.
About the job
Design, build, and operate Antithesis’s core backend platform, including its database, storage systems, data pipelines, and APIs, with a focus on correctness, performance, and reliability.
What you'll do
- Build and operate backend infrastructure, data processing pipelines, storage layers, APIs, integrations, and interfaces.
- Contribute to Pangolin and develop platform primitives such as data access layers, authorization frameworks, and service orchestration.
- Own reliability and performance work, including capacity planning, incident response, bottleneck resolution, mentoring, and technical strategy.
What they ask for
- 5+ years of software engineering experience; Rust is preferred, but systems engineers from other backgrounds are welcome.
- Experience building APIs, services, storage engines, query engines, or data-intensive backend systems.
- Deep understanding of distributed systems, including consistency, fault tolerance, replication, and observability.
- Hands-on experience designing and shipping APIs, with attention to correctness and contract stability.
Nice to have
- Query planning or optimization; multi-tenant platform or authz background; C/C++ familiarity; or open-source contributions.
- Rust.
Tools
Rust, C/C++, Pangolin
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