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Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in building backend services and test infrastructure using Python or TypeScript, with a focus on creating reproducible and trustworthy results in adversarial environments. Proficient in managing concurrent executions and implementing robust testing frameworks.
Highest-signal resume keywords
Python DevelopmentTypeScript DevelopmentBackend Services ArchitectureAdversarial MindsetTest Infrastructure Design
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Backend ServicesAsync WorkersTest InfrastructureRegression TestingIdempotencyObservabilityFuzzingAutomated EvaluationControlled Noise ManagementEvidence Judgment
Soft Skills
JudgmentAnalytical Thinking
Tools & Technologies
Agent FrameworksVoice SystemsTelephony SystemsLLM Evaluation Infrastructure
Industry Keywords
CTFsSecurity ProjectsInfrastructure FailuresMulti-Turn ScenariosCancellable Execution
Tech Stack
Tools & technologiesPythonTypeScript
About the role
Key responsibilities & impact- Build the attack harness for authorized targets
- Generate useful variations by branching multi-turn scenarios and voice conditions with explicit objectives and conditions
- Make results trustworthy by distinguishing successful attacks, refusals, infrastructure failures, and inconclusive results
- Make findings reproducible with scenarios, configurations, model versions, tool events, outcomes, replay, and comparison
- Convert validated findings into regression tests that run on every change with controlled noise
- Build runners for calls and chat sessions, evaluators, and replay systems
- Support thousands of concurrent calls with bounded, cancellable, observable execution
Requirements
What you’ll need- 3+ years building backend services, async workers, or test infrastructure in Python or TypeScript, with the failure cases and the tests
- An adversarial mind: offensive tooling, CTFs, fuzzing, or a security project
- Judgment about evidence: when an automated evaluator is enough and when a human has to look
- Idempotency, backpressure, observability, and limits that are enforced rather than documented
- Nice to have: Agent frameworks, voice or telephony systems, or LLM evaluation infrastructure
- Nice to have: A security finding of your own, responsibly disclosed
Benefits
Comp & perks- Competitive salary and meaningful equity
- Health, dental, and vision coverage
- Every frontier AI tool, fully paid, from day one
- Conferences and events we sponsor
- Flexible PTO
- Offices in San Francisco and Austin
- Remote in the United States for most roles