Akash Kumar Sinha

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SKILLS & EXPERIENCE

HLDSystem DesignKubernetesTerraformDockerKafkaCI/CDLinux SystemsPrometheus MetricsGolangTypescriptRustGinReactNextjsbunRedisPostgreSQLSQLQuery OptimizationCTEsWebSocketsMicroservicesDistributed SystemsLock-free Concurrency

Work Experience

Benchmark Administration

Golang Developer / Backend Engineer (Contract)

Built and operated production backend services in Go, taking ownership across backend architecture, caching, deployment, observability, and production reliability.

  • Designed and implemented a dedicated Redis caching layer to reduce repeated database and backend operations, improve response times, and provide a scalable foundation for increasing application traffic.
  • Owned the Redis service end-to-end, including architecture, implementation, deployment, and production operations.
  • Engineered production Go services with a focus on reliability, maintainability, and efficient request handling across backend workflows.
  • Managed backend deployment workflows and production infrastructure, ensuring services could be deployed, monitored, and maintained reliably.

Open Source Contributions

executor-node

Entros Protocol2026

Rust

PR #12

  • Designed and implemented a live node-status API exposing uptime, verification and attestation counters, and relayer balance, giving operators real-time visibility into node health and operational state.
  • Built a lock-free metrics layer using AtomicU64 for thread-safe counter updates across concurrent Axum request handlers without introducing mutex contention.
  • Implemented API-key authentication with constant-time credential comparison using subtle::ConstantTimeEq, reducing exposure to timing-based credential attacks.
  • Introduced a 30-second TTL-based balance cache to eliminate redundant RPC calls, reducing unnecessary upstream requests while keeping operational data reasonably fresh.
  • Added comprehensive unit tests covering the metrics, authentication, caching, and status-handling logic to improve confidence in the new production-facing functionality.

Achievements

Open Source Systems & Concurrency Contributions

Entros Protocol & Open Source Community2025 – 2026

Engineered core telemetry and concurrency infrastructure in Rust for open-source distributed executor nodes.

Merged Pull Request #12↗

  • Built high-throughput, lock-free metrics layer using AtomicU64 to eliminate mutex contention across concurrent Axum handlers.
  • Implemented constant-time API credential verification to prevent timing-based side-channel vulnerabilities.
RustDistributed SystemsConcurrencySecurity

SQL 50 Badge

LeetCode

Awarded the official LeetCode SQL 50 badge for solving curated relational database problems covering complex queries, multi-table joins, subqueries, and aggregation.

LeetCode Badges↗

  • Completed 50 targeted SQL challenges focusing on real-world query logic and optimization.
  • Proficiency in CTEs, window functions, conditional aggregations, grouping, and filtering.
SQLPostgreSQLCTEsWindow FunctionsQuery Optimization

100+ Algorithmic Problems Solved (Through Graph DS & DP)

Curated, high-depth problem solving focusing on foundational through advanced algorithmic patterns, covering dynamic programming, graph data structures, trees, and linked data structures.

LeetCode Profile↗

  • Targeted deliberate practice covering topics from arrays and two pointers up to graph data structures and dynamic programming.
  • Emphasis on space and time complexity optimization, recursion tree analysis, and pattern mastery.
LeetCodeDynamic ProgrammingGraph DSAlgorithmsDSA