Nikita User
@nikitauser9
Go developer building high-load microservices with performance and fault tolerance.
BelarusWhat I'm looking for
I’m a Go developer with 6+ years of experience building microservices for high-load distributed systems. I’m proficient in system design, business logic, SQL optimization, async data processing, and CI/CD, and I focus on performance and fault tolerance. I write clean, maintainable code backed by tests, and I care deeply about reliability in production.
In my most recent work, I architect and develop REST and gRPC services integrating AI-driven features with SAP S/4HANA, reducing data sync latency by 35%. I’ve built distributed observability using Prometheus and Grafana, containerized and deployed to Kubernetes with CI/CD, and improved throughput and latency through Redis caching, Kafka consumer/partition tuning, and database indexing/query plan redesign. Earlier, I delivered 6k+ TPS smart-contract services with Hyperledger Fabric and improved transaction workflows using NATS JetStream and Redis; I also built real-time RTSP/WebRTC streaming (Pion) with asynchronous transcoding using Kafka + FFmpeg while reducing CPU load and latency.
Experience
Work history, roles, and key accomplishments
Software Engineer
LeverX
Sep 2025 - Present (7 months)
Architected and developed REST and gRPC microservices integrating AI-driven features with SAP S/4HANA and internal enterprise platforms, cutting data sync latency by 35%. Built distributed monitoring (metrics/logs/tracing) and Kubernetes CI/CD pipelines, and improved performance with Redis caching (−30% MongoDB reads; −45ms p95) plus Kafka consumer/partition tuning (+40% throughput).
Software Engineer
Banking Technologies
Mar 2024 - Sep 2025 (1 year 6 months)
Designed and implemented core Hyperledger Fabric services with smart contract logic for account management and emission, reaching 6k+ TPS. Built an async transaction signing queue using NATS JetStream (−core load; +40% response time), improved processing speed with Redis caching (+25%), and delivered CI/CD with GitLab CI and Kubernetes (Helm) alongside Prometheus/Grafana monitoring and 80%+ unit/i
Software Engineer
InDev Solutions
Nov 2022 - Mar 2024 (1 year 4 months)
Optimized SQL queries using EXPLAIN/ANALYZE to reduce response time by 2.3x and built an organization search engine with multi-parameter filtering and full-text search over 50k+ records with sub-100ms latency. Developed RTSP/WebRTC (Pion) video streaming with asynchronous transcoding using Kafka + FFmpeg (−35% CPU, −40% latency) and improved tree queries by 40% using a Nested Sets model, integrati
Software Engineer
EPAM Systems
Jan 2020 - Oct 2022 (2 years 9 months)
Developed a REST API with role-based access control, booking conflict resolution, and business rules validation for 1,000+ concurrent users, reducing API response time by 30%. Implemented Redis caching, Prometheus metrics with Grafana dashboards, audit-friendly logging, and internal tooling/automation that cut manual deployment steps by 50% using Go, PostgreSQL, Docker, and GitLab CI (Swagger for
Education
Degrees, certifications, and relevant coursework
Belarusian State University of Informatics and Radioelectronics
Programmable Mobile Systems
2019 - 2023
Studied in the Faculty of Computer Design, specializing in Programmable Mobile Systems from 2019 to 2023.
Tech stack
Software and tools used professionally
Availability
Location
BelarusAuthorized to work in
Job categories
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