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Mykhailo Humen

@mykhailohumen

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Full Stack Engineer at Peppernode OÜ who built an AdTech analytics platform and cut API response time by 66%.

Ukraine

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What I'm looking for

I'm looking for a Senior Full-Stack Engineer role where I can own features end-to-end, from database design through the UI, and build production systems across backend, frontend, and AWS.

At Peppernode OÜ, I built an internal analytics platform for an AdTech client from scratch as the sole engineer, making the technical and architectural decisions. I designed its architecture and database, deployed it on AWS EC2, and engineered 50+ asynchronous ETL pipelines.

I also diagnosed a critical analytics dashboard bottleneck, cutting API response time by 66% through profiling, query optimization, and pagination changes. I migrated the frontend from Django templates to React and established CI/CD pipelines with automated testing and deployments.

At BeHealthy.ai, I led development of two internal products as a sole engineer, from architecture through production. One was a medical anamnesis platform with configurable rules; another was a real-time support chatbot with live-agent escalation using Django Channels and Redis.

Across roles, I've built Python and Django services, REST APIs, and React features, including backend services for a video-based workforce monitoring platform at Postindustria. I’ve also integrated third-party data sources and APIs, maintained microservices, and mentored junior developers.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Peppernode OÜ

Oct 2023 - Present (3 years)

- Diagnosed and resolved a critical performance bottleneck in the platform's analytics dashboard, cutting API response time by 66% (15.5s → 5.2s) through systematic profiling, query optimization, and pagination restructuring
- Architected and delivered an internal analytics platform for an AdTech client from scratch as a sole engineer, independently making all technical and architectural decisions

Python Backend Engineer

Postindustria

Apr 2023 - Jul 2023 (3 months)

- Developed backend service for a video-based workforce monitoring platform using Python and Django
- Integrated Kafka-based streaming pipeline to consume, process, and store incoming video data
- Coordinated backend data flow with ML pipeline to classify worker activity (idle vs active) based on processed video footage
- Built REST APIs for workforce analytics and activity visualization features

Full Stack Engineer

GlobalLogic

Jun 2021 - Feb 2023 (1 year 8 months)

- Engineered full-stack features across React frontend and Django/DRF backend within a high-load microservices platform
- Designed database schemas and technical architecture independently within feature scope
- Optimized backend endpoints through query refactoring, improving response times and overall system throughput
- Collaborated directly with client stakeholders to clarify requirements and a

Python Backend Engineer

InStandart

Oct 2020 - Apr 2021 (6 months)

- Developed backend functionality for a production-grade web application using Python and Django
- Integrated 20+ third-party APIs, implementing data ingestion, processing, and storage pipelines
- Engineered asynchronous tasks to automate report generation, reducing manual workload
- Optimized Django ORM queries through refactoring, reducing database call count and improving overall application pe

Technical Lead

BeHealthy.ai

Feb 2019 - Oct 2020 (1 year 8 months)

- Led end-to-end development of two internal products as sole engineer, owning architecture, delivery, and all technical decisions from inception to production
- Designed system architecture, database schemas, and selected technologies based on product requirements, consulting with CTO on strategic decisions
- Architected a rule-based medical anamnesis platform where symptom selection dynamically

Full Stack Engineer

BeHealthy.ai

Oct 2018 - Feb 2019 (4 months)

- Developed frontend and backend features for a production web application using Python, Django, Vue.js, and MySQL
- Proposed and led migration from on-premise Windows hosting to Ubuntu server infrastructure, improving operational stability
- Configured deployment pipelines using Nginx, Celery, and systemctl on a self-managed Linux server