Experience

I've worked across betting platforms, Web3 infrastructure, and SaaS - industries where system failures have immediate business consequences. Here's what I solved and how.

TGLab

2021-01 → 2022-03

Junior Backend Developer

Sports data platform serving betting operators

What was broken

•Data scraping systems crashed under unpredictable external source changes
•Database performance degraded under continuous load (>20 TB dataset)
•No monitoring or alerting - incidents discovered by users, not engineers
•Manual testing slowed releases and missed edge cases

What I solved

•Built resilient data pipelines handling real-time sports data across REST, WebSockets, and message queues
•Diagnosed and resolved SQL performance bottlenecks in high-throughput scenarios
•Implemented monitoring and alerting infrastructure reducing incident response time
•Introduced automated testing (frontend + backend) improving release confidence
•Participated in container orchestration and emergency recovery procedures

Business Impact

This was my foundation - learning how production systems fail and how to prevent it. Handled large-scale data flows but didn't design betting logic itself.

Node.jsPostgreSQLMySQLDockerRabbitMQ

Engines of Fury

2022-05 → 2023-04

Backend Engineer

Web3 gaming startup with real-time multiplayer and blockchain integration

What was broken

•Authentication didn't exist-all non-public resources were exposed
•CI/CD pipelines were non-functional, blocking deployments
•No testing infrastructure, making changes dangerous
•Microservices communicated unreliably across distributed systems

What I built

•Designed and implemented secure authentication protecting all internal resources (REST APIs, microservices, WebSocket servers)
•Rebuilt broken CI/CD pipelines enabling automated Kubernetes deployments
•Established testing practices (unit + integration tests) reducing production errors
•Integrated Ethereum blockchain and Apache Kafka for reliable event-driven architecture
•Managed full cloud infrastructure: load balancers, reverse proxies, API gateways, SSL automation

Business Impact

Designed, implemented and debugged large part of their backend infrastructure.

Nest.jsKubernetesEthereumKafkaWebSocket

Independent Projects

2023-04 → Present

Consultant

Selective client work for SaaS and digital agencies

Plagramme & Identific

Education technology platforms serving teachers and students worldwide

Problem

Agency struggled with performance issues in their landing page.

Solution

•Audited and optimized web performance across client portfolio (Core Web Vitals >95)
•Implemented SEO improvements contributing to 20% increase in user retention
•Built GitLab CI pipeline with Slack notifications on failure
•Diagnosed and fixed recurring outages caused by uncontrolled log growth (uptime: 99.95%+)
•Integrated Google Cloud Translation API for 32+ language support

Business Impact

Reduced agency's production incidents by ~80%. Improved client retention through measurable performance gains.

Next.jsGitLab CIGoogle CloudPerformance Optimization

AWS Infrastructure & Serverless OAuth Troubleshooting

Multiple clients

Problem

Clients came with 'it's broken, we don't know why'

Solution

•Diagnosed Lambda runtime failures through CloudWatch log analysis
•Implemented fixes to OAuth flows involving CloudFront/AWS Lambda distributions
•Resolved S3 file access issues blocking production workflows
•Fixed IAM permission configurations for Strapi CMS + S3 media uploads

Business Impact

Found root causes and implemented fixes, not workarounds.

AWS LambdaS3CloudFrontIAMStrapi

Build speed optimization

Multiple clients

Problem

Clients were using legacy bundler configurations leading to slow builds and deployments

Solution

•Replaced Webpack and Rollup with Rspack for multiple clients

Business Impact

Build times reduced from 1 minute to under 5 seconds, leading to faster deployments and improved developer experience.

ReactRspackBuild Optimization