Тарас

TARAS BODNAR
Tech Lead · Backend Engineer
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PROFESSIONAL SUMMARY
Results-driven Tech Lead with 10+ years of experience in backend engineering, including 4 years leading
development teams at Otakoyi. Proven expertise in PHP (Laravel, Symfony), Node.js (NestJS), and
cloud-native infrastructure. Hands-on experience designing microservices, event-driven systems with
RabbitMQ, full-text search with Elasticsearch, and integrating AI-powered features using LangChain.
Passionate about engineering excellence, mentoring developers, and translating business requirements into
scalable technical solutions.

TECHNICAL SKILLS

Languages PHP 8.x, JavaScript / TypeScript, SQL

Frameworks Symfony, Laravel, NestJS, Express.js

CMS WordPress (custom themes, plugins, REST API)

Databases MySQL, PostgreSQL, MongoDB, Elasticsearch

ORM / ODM Prisma ORM, Doctrine, Eloquent

Infrastructure Docker, Docker Compose, Nginx, Varnish

Messaging RabbitMQ, event-driven architecture

Caching Redis

AI / LLM LangChain, RAG pipelines, LLM integration

Other REST API, CI/CD, Git / GitFlow, Agile / Scrum

PROFESSIONAL EXPERIENCE

Tech Lead | Otakoyi 2021 – Present
▸ Led backend teams across multiple projects, defining architecture, conducting code reviews and setting
engineering standards
▸ Built and maintained a custom CMS using Symfony and PostgreSQL, with Elasticsearch powering
advanced content search and filtering
▸ Architected a second-generation platform with NestJS, Prisma ORM and PostgreSQL — clean modular
structure with full type safety
▸ Configured and tuned Elasticsearch for full-text and faceted search across large content datasets
▸ Managed RabbitMQ-based event-driven workflows and Redis/Varnish caching layers to support
high-traffic environments
▸ Integrated LangChain-based AI pipelines into product features, enabling LLM-powered functionality
▸ Standardised Docker-based development and production environments across all projects
▸ Mentored backend developers, ran technical interviews and participated in project scoping with
stakeholders

Backend Developer | Otakoyi 2016 – 2021
▸ Developed web applications and REST APIs using PHP / Laravel as the primary stack

▸ Built and customised WordPress solutions including custom themes, plugins and REST API integrations
for client projects
▸ Designed and maintained MySQL databases; wrote complex queries, migrations and optimisation
strategies
▸ Integrated projects with third-party services and external environments (payment gateways, CRMs,
analytics, SSO)
▸ Worked partially with Express.js and MongoDB on Node.js-based projects requiring flexible data models
▸ Collaborated in Agile teams, participated in code reviews and gradually grew into a senior engineering
role

EDUCATION
Master of Computer Science · Ivan Franko National University of Lviv

LANGUAGES
Ukrainian — Native English — Intermediate (B1+)