Roman

About me
Full Stack Software
Full name
Roman Humeniak Engineer
Phone
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Email
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Address
Ivano-Frankivsk, Ukraine
Let's get to know each other
Linkedin Hi, I’m Roman — a Full Stack Software Engineer with 3+ years of commercial
experience building scalable web applications and backend systems in modern
Github
JavaScript and TypeScript ecosystems.
One of my key strengths is bridging the gap between business and engineering by
Education working closely with stakeholders and clients to translate requirements, ideas, and
product goals into practical and maintainable technical solutions.
2020 - 2024 I specialize in React, Next.js, Node.js, and NestJS, with a strong focus on system
IFNTUOG design, performance optimization, and software architecture. I have extensive
experience working across the full product lifecycle, from architecture and
Software engineer
development to production support and continuous improvement.
I believe high-quality software is the result of strong engineering practices, clear
Skills communication, and a deep understanding of the problems being solved.

Frontend
Experience
React js
2023 - 2025
Next js
Appexoft
Tailwind CSS Full stack developer

Redux Toolkit On this position, I worked on a variety of client projects, contributing across
both frontend and backend development with a primary focus on JavaScript
Tanstack Query and TypeScript technologies. I played an active role in technical planning,
solution design, and implementation, collaborating directly with clients to
Typescript
gather requirements, discuss architecture decisions, and translate business
Material UI
needs into scalable software solutions.
Vite
One of my key contributions was leading the migration of a React-based
application to Next.js, leveraging server-side rendering, static generation,
Backend and other framework capabilities to improve SEO, application performance,
Node js and maintainability. I architected and developed a scalable role-based
access control system using Next.js and JWT, implementing custom guards,
Nest js
middleware, and permission-driven authorization flows to enforce granular
Express js access control across multiple user roles and protected application
resources.
RabbitMQ

WebSockets Additionally, I contributed to the architecture and full-stack development of
an AI chatbot marketplace, with a strong focus on AI integration across both
Webhooks
client-side and backend systems. On the frontend, I implemented a chat
AsyncApi interface that allowed end users to interact directly with AI-powered
assistants embedded into client applications. On the backend, I worked on
GraphQL
embedding-based data processing pipelines, enabling the system to ingest
Rest API and structure documentation and knowledge sources used to enhance AI
ORM (Prisma, TypeORM) responses.
Throughout my work, I focused on delivering maintainable, scalable, and
production-ready solutions while collaborating closely with cross-functional
teams and stakeholders to ensure successful project delivery.
 2025 - Present
Databases & Data
Redocly
Storage Full stack developer
PostgreSQL
As a Full Stack Developer at Redocly, I contributed to the development and
MongoDb maintenance of a large-scale API documentation platform, working across
backend services, integrations, testing infrastructure, and developer tooling.
Firebase
I was deeply involved in understanding product requirements and business
Supabase workflows, ensuring that technical solutions aligned with real user needs
and supported the platform’s overall business goals.
AWS S3

Redis My work focused on improving platform reliability, performance, and
maintainability for both internal teams and enterprise customers. A key
Cloud & DevOps contribution was modernizing the automated testing infrastructure by
migrating a large portion of legacy Cypress tests to Playwright, significantly
AWS
improving CI/CD stability, reducing test fragility, and increasing confidence
Docker in production releases for business-critical functionality.

CI/CD
I also designed and implemented a secure webhook signing and verification
Github system for multiple Git providers, including GitLab, Azure DevOps, and
Bitbucket, ensuring trusted and tamper-proof communication between
Gitlab
external services and the platform.
Bitbucket The solution included HMAC-based signature generation for webhook
payloads, enabling secure validation of incoming requests and preventing
Azure Devops
unauthorized or malicious events from being processed.
In addition, I developed an automation mechanism to discover and update
Monitoring &
existing webhook configurations across all connected repositories, ensuring
Observability consistent security standards and reducing manual maintenance overhead.
Grafana This work improved the overall security posture of the integration layer and
ensured reliable synchronization between external Git providers and
Coralogix internal platform services.
AWS Cloudwatch
Additionally, I participated in the development of AI-powered functionality
by working with LLM-oriented Markdown processing pipelines and
AI / LLM integration documentation-related workflows. I also contributed to the refactoring and
Cursor optimization of complex OpenAPI parsing systems, helping reduce build
times by 40% and improving overall platform performance.
Claude

Prompt Engineering Beyond feature development, I actively participated in code reviews,
technical discussions, sprint planning, and architecture-related decisions,
contributing to the overall technical direction of the product.

Languages I also worked closely with support and customer-facing teams to investigate
and resolve production issues, using observability tools such as Coralogix
and AWS CloudWatch along with application logs to perform root cause
English - B2
analysis, identify system bottlenecks, and ensure fast resolution of critical
Ukrainian - Native incidents affecting customers.