Backend Engineer | $80/hr | Remote

Backend Engineers, API Developers & Secure Systems Specialists. Remote AI Project We are seeking experienced Backend Engineers, API Developers, Distributed Systems Engineers, Platform Engineers, and Security-Focused Software Engineers to create realistic, challenging coding tasks that evaluate how advanced AI systems solve real software engineering problems. What You’ll Do Create realistic backend software engineering tasks for AI systems to solveDesign feature implementation challenges based on production-style servicesCreate debugging and bug-fixing tasksDevelop API-focused engineering scenariosBuild tasks involving service logic, databases, concurrency, networking, and distributed systemsDesign security-focused backend tasks where relevantImplement deterministic verifiers and automated gradersEnsure verifiers accept multiple reasonable correct implementationsEnsure incorrect, partial, brittle, or shortcut solutions fail verificationCreate hidden test cases and edge casesBuild golden reference solutionsReview task difficulty, realism, and technical correctnessIdentify unintended shortcuts or exploitable grader behaviorDebug test failures and environment issuesRefactor task environments for reliability and reproducibilityReview AI-generated code for correctness, maintainability, performance, and securityDocument task expectations and verification logic clearly Who Can Apply Relevant backgrounds include: Backend Engineers, Backend Software Engineers, Senior Backend Engineers, Backend Developers, Software Engineers, Server-Side Engineers, API Engineers, and Application Engineers. We also welcome: Platform Engineers, Infrastructure Engineers, Distributed Systems Engineers, Cloud Engineers, Systems Engineers, Microservices Engineers, Developer Platform Engineers, and Production Engineers. Language-specific backgrounds may include: Java Engineers, Python Backend Engineers, Go Engineers, Golang Developers, Rust Engineers, Node.js Engineers, TypeScript Backend Engineers, C++ Engineers, and JVM Engineers. Architecture and systems backgrounds may include: Software Architects, Backend Architects, Solutions Engineers, Technical Leads, Staff Engineers, Principal Engineers, and Engineering Leads with strong hands-on coding experience. Security-focused backgrounds may include: Application Security Engineers, Product Security Engineers, Security Software Engineers, DevSecOps Engineers, Security Researchers, Penetration Testers, Vulnerability Researchers, Security Consultants, and Secure Code Reviewers with strong software development ability. Backend Engineering Experience Strong candidates may have experience with: REST APIsGraphQLgRPCRPC systemsMicroservicesMonolithic applicationsService-oriented architectureAuthenticationAuthorizationSession managementBackground jobsMessage queuesEvent-driven systemsCachingRate limitingWebhooksFile processingScheduling systemsBusiness logicData validationAPI versioningService integrations Requirements Strong professional experience in backend or server-side software engineeringProficiency in at least one backend language such as Java, Node.js, Go, Rust, TypeScript, Python, or C++Track record building scalable services or APIsStrong debugging abilityExperience implementing non-trivial backend featuresExperience with automated testingStrong code-review instinctsExperience improving performance or resolving system bottlenecksStrong understanding of algorithms and data structuresAbility to work effectively within existing codebasesExcellent analytical and problem-solving skillsStrong written and verbal technical communicationStrong attention to detailComfortable working independently in a remote environment Preferred Background Experience with large-scale production backend systemsDistributed systems experienceMicroservices experienceHigh-scale API developmentCybersecurity or application-security backgroundPenetration-testing experienceVulnerability-assessment experienceSecure code-review experienceFamiliarity with OWASP and CWEExperience with performance engineeringExperience refactoring large codebasesExperience designing complex backend featuresExperience creating testing infrastructure or automated gradersExperience participating in rigorous code reviewsExperience establishing software engineering best practices This opportunity is ideal for backend engineers who can take a production-style software problem and turn it into a realistic, challenging, automatically verifiable coding task, then determine whether a proposed solution is genuinely correct, performant, maintainable, and secure. We are a referral partner of the client.