Open to opportunities

Kyrylo Bibik

@kyrylobibik

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Senior backend engineer with 10+ years in C++/Go/Python, high-load systems, and AI agents, RAG & LLMs.

Poland

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What I'm looking for

I’m looking for a challenging engineering role where I can combine my backend experience with AI/LLM technologies. I’m particularly interested in AI agents, high-load systems, system architecture, and roles with strong technical ownership.

Backend and AI engineer with 18+ years of hands-on experience building high-throughput, real-time systems, spanning programmatic ad-tech platforms, broadcast and live-streaming services, financial ledger systems, and low-level security software for Windows.
Recently shifted focus into AI agent engineering, building retrieval-augmented agents, a deliberate move toward where the field is heading.
Equally comfortable owning complex systems end-to-end, from low-level performance work to architecture, and collaborating with teams and stakeholders.

Experience

Work history, roles, and key accomplishments

Current

Artificial Intelligence Engineer

Current

softevol

Apr 2026 - Sep 2026 (5 months)

Engineered a RAG-based AI agent on Google Cloud (Vertex AI, Gemini), combining retrieval with tool-calling to replace manual documentation lookups with instant answers.
Indexed a document corpus into a knowledge graph and vector store with LightRAG, enabling hybrid graph+vector retrieval on Gemini and improving answer relevance over plain vector search.

Python Vertex AI RAG Data Pipelines AI Agents

Backend Team Lead

softevol

Sep 2021 - Apr 2026 (4 years 7 months)

Designed and built a high-load SSP (supply-side platform) server processing thousands of requests per second, supporting real-time bidding at scale.
Designed CI/CD for the SSP's distributed infrastructure, enabling zero-downtime deployments and continuous updates.
Built a private blockchain storing 1TB+ of advertising data as a tamper-proof record for fraud protection.

Go C++

Backend Developer

softevol

Apr 2016 - Sep 2021 (5 years 5 months)

Led the migration of a legacy Python service to Go and optimized the production database structure, cutting response time by ~50% while reducing infrastructure costs.
Designed and maintained a financial ledger system handling wallet balances and transactions for 300k+ users.
Strengthened security of the ledger service against recurring hacker attacks.

Python C++PostgreSQL S3 Redis Ansible Jenkins Go

Lead C++ Developer

softevol

Aug 2014 - Apr 2016 (1 year 8 months)

Developed a Windows-based application for live game streaming, including core real-time video/audio capture, encoding, and processing pipelines.

Windows Video FFMPEG DirectX RTMP C++

Senior iOS Developer

softevol

Oct 2013 - Aug 2014 (10 months)

Developed an iOS IM (instant messaging) client, working within a small team and taking on technical leadership responsibilities
Built core messaging features and real-time communication functionality for the app
Developed an iOS video editing application, handling media processing and editing workflows

iOS

C++ Developer

Freelancer

Sep 2007 - Oct 2013 (6 years 1 month)

Developed low-level Windows system software (network filters, browser extensions) and multi-threaded C++ network applications for Linux; designed client-server architectures and WinAPI/MFC desktop apps.

C++Windows Low Level Systems Programming