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Hi there! I'm Nicholas Emmanuel Lagos, a Backend Systems Engineer with 4+ years of experience building high-throughput, production-grade services in Go, Nest.js, and Python. I specialize in distributed systems design, async job pipelines, and cloud infrastructure on AWS and GCP, delivering reliable, scalable software. In my work, I value pragmatic tradeoffs, observability, and team collaboration. I'm passionate about mentoring others, partnering with product and SREs to ship resilient systems, and continuously learning new tech to solve real-world problems.…Hi there! I'm Nicholas Emmanuel Lagos, a Backend Systems Engineer with 4+ years of experience building high-throughput, production-grade services in Go, Nest.js, and Python. I specialize in distributed systems design, async job pipelines, and cloud infrastructure on AWS and GCP, delivering reliable, scalable software. In my work, I value pragmatic tradeoffs, observability, and team collaboration. I'm passionate about mentoring others, partnering with product and SREs to ship resilient systems, and continuously learning new tech to solve real-world problems.

Nicholas Emmanuel Lagos

Back-End Developer, Full Stack Developer, Web Developer, +2

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Hi there! I'm Nicholas Emmanuel Lagos, a Backend Systems Engineer with 4+ years of experience building high-throughput, production-grade services in Go, Nest.js, and Python. I specialize in distributed systems design, async job pipelines, and cloud infrastructure on AWS and GCP, delivering reliable, scalable software. In my work, I value pragmatic tradeoffs, observability, and team collaboration. I'm passionate about mentoring others, partnering with product and SREs to ship resilient systems, and continuously learning new tech to solve real-world problems.…Hi there! I'm Nicholas Emmanuel Lagos, a Backend Systems Engineer with 4+ years of experience building high-throughput, production-grade services in Go, Nest.js, and Python. I specialize in distributed systems design, async job pipelines, and cloud infrastructure on AWS and GCP, delivering reliable, scalable software. In my work, I value pragmatic tradeoffs, observability, and team collaboration. I'm passionate about mentoring others, partnering with product and SREs to ship resilient systems, and continuously learning new tech to solve real-world problems.

Available to hire

Hi there! I’m Nicholas Emmanuel Lagos, a Backend Systems Engineer with 4+ years of experience building high-throughput, production-grade services in Go, Nest.js, and Python. I specialize in distributed systems design, async job pipelines, and cloud infrastructure on AWS and GCP, delivering reliable, scalable software. In my work, I value pragmatic tradeoffs, observability, and team collaboration. I’m passionate about mentoring others, partnering with product and SREs to ship resilient systems, and continuously learning new tech to solve real-world problems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Software Engineer at Top Web Technologies

May 1, 2023 - June 1, 2025

Designed and shipped Go backend services for a real-time scoring platform, supporting 2,000+ concurrent users with 97.2% uptime via connection pooling and horizontal scaling on Kubernetes. Implemented idempotent Stripe-based payment processing with exponential backoff and retry logic, reducing duplicate charges and transaction failures by 20%. Improved observability with CloudWatch structured logging and metrics, surfacing latency regressions early and cutting mean time to recovery by 40% while reducing AWS costs by 30% through resource profiling.

Back End Engineer at Taaleem

January 1, 2023 - August 1, 2023

Built RESTful backend services with NestJS and PostgreSQL to power an educational platform, enabling features that drove a 25% increase in student enrollment. Implemented an auto-grading engine to replace a manual review workflow, returning assignment results to 91% of students within 24 hours.

Software Developer Intern at Xoommit

August 1, 2022 - January 1, 2023

Built GraphQL APIs to consolidate fragmented data fetching into single queries for project management features, reducing API response times by 35%. Developed AI-powered task automation pipelines to intelligently prioritize and route work, cutting average project delivery time from 8 weeks to 2 weeks.

Project Atlas — Internal Cloud Platform at Atlas

December 1, 2025 - Present

Designed a production-grade internal platform with 7 subsystems under shared contracts (idempotency, mTLS, audit log, retry/backoff, trace propagation, health) enforced at the middleware layer, with a Raft-backed coordination layer for distributed locking and idempotency key deduplication across all services. Integrated unified observability across ClickHouse, TimescaleDB, and Jaeger to correlate logs, SLO burn rates, and traces in a single query; chaos-tested under node kills, network partitions, and duplicate request injection.