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Presentation
Senior backend and AI engineer with 10+ years building production systems for B2B companies across Europe and the US.
What I do:
AI/LLM systems — RAG pipelines, multi-agent workflows, prompt and evaluation infrastructure, guardrails, and cost/latency optimisation for LLM features that have to work in production, not just in a demo.
Backend & APIs — Go, Ruby on Rails, Node.js/TypeScript and Python. REST and gRPC services, event-driven architecture with Kafka, background job systems, and third-party integrations (payments, CRM, ERP).
Data & ETL — I built a petabyte-scale ETL platform with hundreds of connectors and LLM processing layers: ingestion, normalisation, scheduling, retries and observability.
Production readiness — distributed tracing with OpenTelemetry, Datadog dashboards, SLOs, CI/CD and AWS infrastructure.
How I work: I start from the business problem, propose the smallest architecture that actually solves it, and ship in reviewable increments. Clear written updates, tested code and documentation the next engineer can pick up.
Available for short technical audits and prototypes as well as long-term engagements. I work in English, Russian and Ukrainian.
What I do:
AI/LLM systems — RAG pipelines, multi-agent workflows, prompt and evaluation infrastructure, guardrails, and cost/latency optimisation for LLM features that have to work in production, not just in a demo.
Backend & APIs — Go, Ruby on Rails, Node.js/TypeScript and Python. REST and gRPC services, event-driven architecture with Kafka, background job systems, and third-party integrations (payments, CRM, ERP).
Data & ETL — I built a petabyte-scale ETL platform with hundreds of connectors and LLM processing layers: ingestion, normalisation, scheduling, retries and observability.
Production readiness — distributed tracing with OpenTelemetry, Datadog dashboards, SLOs, CI/CD and AWS infrastructure.
How I work: I start from the business problem, propose the smallest architecture that actually solves it, and ship in reviewable increments. Clear written updates, tested code and documentation the next engineer can pick up.
Available for short technical audits and prototypes as well as long-term engagements. I work in English, Russian and Ukrainian.
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Portfolio
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Offered services
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Technical audit and architecture review before you commit the budget
An outside read on your system, written so both your engineers and your finance people can act on it.
WHEN THIS HELPS
- You inherited a codebase and need to know what you actually own
- A rewrite is ...
50 $ Per hour
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ETL pipelines, data integrations and connectors for sources without an API
Data that arrives on time, in one shape, from sources that were never designed to cooperate.
WHAT YOU GET
- Connectors and ingestion: APIs, files, feeds, databases, and sources with no public API at ...
55 $ Per hour
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Backend and API development in Go, Ruby on Rails and Node.js
Backend services and APIs built to be correct under load, not just correct on the happy path.
WHAT YOU GET
- Services and APIs: REST and gRPC, versioning, pagination, auth, rate limiting, clear error ...
55 $ Per hour
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AI agents and LLM pipelines - RAG, evaluation and guardrails that survive production
I build the LLM layer of your product and make it reliable enough to keep in production.
WHAT YOU GET
- RAG pipelines: chunking and indexing strategy, hybrid retrieval, reranking, and an evaluation ...
60 $ Per hour
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Background
Staff / Lead Engineer (Platform & Data)
Led platform and data engineering for a petabyte-scale ETL platform with hundreds of source connectors and LLM-based processing layers. Built Go and Ruby on Rails services around Kafka and gRPC, instrumented with OpenTelemetry, Datadog and SLOs. Owned reliability, throughput and cost of the pipeline end to end.
Senior Full Stack Engineer
Built and scaled the Node.js/TypeScript creative export pipeline behind the design platform, rendering large batches of ad assets across formats. Worked across the full stack on performance, queueing and rendering reliability.
Senior Ruby on Rails Engineer
Built asynchronous payment and payout integrations for a global freelance hiring platform. Worked on Ruby on Rails services, background job pipelines and the reliability of third-party payment APIs.
Browser Extension Consultant (Independent)
Designed and shipped browser extensions and the backends behind them for independent clients. Covered Chrome and Firefox extension APIs, data extraction pipelines and the services that stored and processed the collected data.
Senior Full Stack Engineer
Delivered full-stack work across client projects including TKXS, proVeo, Vereign, Pravoved.ru and Edetek. Built Ruby on Rails, JavaScript and Python services, including CDISC/XML clinical data standards work at Edetek.
🇩🇪Deutsch 🇬🇧English 🇷🇺Russian
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Working hours
Monday
From08h00To18h00
Tuesday
From08h00To18h00
Wednesday ▪ Today
From08h00To18h00
Thursday
From08h00To18h00
Friday
From08h00To18h00
Saturday
Closed
Sunday
Closed
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