Senior Backend Engineer

Company

Antithesis

Where

Vienna, VA, USA

Level

Senior

First seen

August 14, 2026

Listed via

Ashby

What the posting says

As a Senior Backend Engineer here, you won't be maintaining someone else's abstractions. You'll be designing them from scratch, owning them end-to-end, across the full stack: from raw binary formats and block compaction all the way up to the external APIs our customers depend on. Correctness and performance aren't nice-to-haves here — they're the job. If you get unreasonably excited about systems design, performance, storage efficiency, clean API contracts, and finding the bottleneck nobody else noticed, we'd love to talk. What You'll Do - Design, build, and operate core platform systems —…

Read more and apply on Antithesis' site

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