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Skills

  • Amazon Web Services
  • API
  • Back End Development
  • Catboost
  • Chatbots
  • CI/CD
  • ClickHouse
  • Data Extraction
  • DevOps
  • Elasticsearch
  • Go Programming
  • Kafka
  • Kubernetes
  • Linux
  • Manticore

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Services

  • Senior Go/Python/PHP Backend Developer

    $35/hr Starting at $500 Ongoing

    Dedicated Resource

    Senior Backend Developer with 13+ years of experience building high-load systems serving millions of users. Currently leading search infrastructure at Superjob (8M+ monthly users), specializing in ML...

    Amazon Web ServicesAPIBack End DevelopmentCatboostChatbots

About

Building ML-powered search systems for millions | Go & Python expert | Led Instagram API integration at Manychat | Transforming legacy systems into modern architectures

I'm a Senior Backend Developer with over 13 years of experience building systems that scale. Currently, I'm leading search infrastructure at Superjob, where I implemented ML-powered ranking that serves 8 million users monthly with sub-5ms response times.

My journey in tech started with PHP development in 2012, evolving through full-stack roles before specializing in backend architecture. The last 2.5 years, I've focused intensively on Go, building high-performance microservices that handle thousands of requests per second.

RECENT ACHIEVEMENTS:
- Implemented CatBoost ML ranking via CGO, improving search CTR by 15% for 8M users
- Led complete migration from Sphinx to Manticore Search for multi-million document database
- Built end-to-end MLOps pipeline processing terabyte-scale datasets
- Reduced system response time by 30% and memory usage by 80% through architectural optimization

At Manychat, I was the technical lead for Instagram API integration during its closed beta phase. I worked directly with Instagram's engineering team, navigating API limitations and building fault-tolerant components that served 3M+ users. This experience taught me how to handle ambiguity and deliver under pressure.

TECHNICAL FOCUS AREAS:
- Search systems and ML integration (Manticore, Elasticsearch, vector databases)
- High-load microservices architecture (Go, Kubernetes, event-driven systems)
- Database optimization (PostgreSQL, ClickHouse, Redis)
- Real-time data processing (Kafka, RabbitMQ, binlog replication)

I believe in ownership mentality - when I take on a project, I see it through from architecture design to production monitoring. My approach combines technical excellence with business impact, always asking "how does this improve user experience or reduce operational costs?"

Outside of work, I contribute to open-source projects and stay current with ML/AI developments. I'm particularly interested in applying transformer models to search relevance problems.

Looking for challenging projects where I can apply my expertise in search systems, ML integration, or high-load architectures. I thrive in environments that value technical innovation and measurable impact.