Senior Backend Engineer
Antithesis3 months ago
Responsibilities
- Design, build, and operate backend infrastructure, data-processing pipelines, storage layers, scalable APIs, integrations, and interfaces.
- Contribute to Pangolin, Antithesis’s purpose-built database.
- Build and evolve data access layers, authorization frameworks, and service orchestration primitives.
- Own reliability through system design, capacity planning, incident response, and a shared on-call rotation.
- Identify and resolve performance bottlenecks across the stack.
- Mentor engineers and contribute to long-term technical strategy.
Requirements
- At least 5 years of software engineering experience is required.
- Experience building APIs, services, storage engines, query engines, or data-intensive backend systems is required.
- Deep understanding of distributed systems, including consistency, fault tolerance, replication, and observability, is required.
- Hands-on experience designing and shipping correct, contract-stable APIs is required.
- Strong software engineering fundamentals, including correctness, test coverage, and well-designed abstractions, are required.
- Rust is strongly preferred, while exceptional systems engineers from other backgrounds are welcome.
- Query planning or optimization experience, multi-tenant platform or authorization background, C or C++ familiarity, and open-source contributions are bonuses.
- Formal education is not required; team members have backgrounds ranging from computer science, philosophy, and mathematics to no formal education.
Benefits
- In-person work arrangement in Vienna, VA
- Shared sustainable on-call rotation across the team
About Antithesis
Antithesis builds a deterministic simulation and autonomous testing platform for software teams building complex systems. It runs full-stack services in a controlled environment, injects faults and toxic inputs, and produces reproducible bug reports with root-cause analysis, integrating into CI and developer workflows. The company is privately held and headquartered in Vienna, Virginia, and sells its platform and expert engineering services to enterprises that need faster, more reliable releases.