Микола

MYKOLA PRYMACHENKO
Senior Full Stack Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Ukraine
[відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
Passionate Senior Full Stack Developer with 4+ years of hands-on experience architecting and shipping
production-grade web applications across Cybersecurity, RetailTech, HRTech, and MediaTech domains.
Skilled in building end-to-end solutions using React.js, Next.js, NestJS, and Node.js, with a strong
foundation in cloud infrastructure and DevOps practices on AWS. Brings a security-conscious
engineering mindset, a keen eye for performance optimization, and a track record of reducing delivery
cycles through well-structured CI/CD pipelines. Thrives in fast-paced, collaborative environments
where clean code, technical ownership, and business impact go hand in hand.

SKILLS
Programming Languages: TypeScript, JavaScript (ES6+), SQL, HTML5, CSS3
Frontend Frameworks & Libraries: React.js, Next.js, Redux, Zustand, Material-UI, Tailwind
Backend Frameworks: Node.js, NestJS, Express.js
APIs: REST, GraphQL, WebSockets
Databases: PostgreSQL, MongoDB, MySQL, Redis
Testing: Jest, Cypress, Playwright, React Testing Library
DevOps & CI/CD: Docker, Kubernetes, GitHub Actions, Jenkins
Cloud Platforms: AWS (EC2, S3, Lambda, RDS, CloudFront, ECS, EKS), Firebase, Azure
Authentication & Security: JWT, OAuth2, Auth0, Passport.js
Version Control: Git, GitHub, GitLab

WORK EXPERIENCE
Yukon Software Ukraine | Senior Full Stack Developer | July 2024 – August 2026
MediaVault — MediaTech Digital Content Distribution Platform
A cloud-native digital content distribution platform serving independent media publishers,
broadcasters, and content creators across European markets. MediaVault enabled multi-format
content ingestion, rights management, and monetization through subscription, pay-per-view, and ad-
supported delivery models — reducing time-to-publish by 60% compared to legacy broadcast
workflows.
Led frontend architecture using Next.js, Redux Toolkit, and Tailwind CSS, delivering a responsive
publisher dashboard and viewer portal with adaptive video streaming and real-time analytics
widgets
Built real-time content delivery status updates using WebSockets, enabling publishers to monitor
ingestion pipelines and CDN propagation in live dashboards
Developed core NestJS backend services with GraphQL APIs for content ingestion workflows, rights
and licensing management, subscription billing, and audience analytics aggregation
Designed PostgreSQL schema for content metadata, rights records, subscription plans, and revenue
reporting; used MongoDB for flexible storage of viewer engagement events and content
performance logs

Implemented OAuth2 + JWT authentication with Auth0 SSO for publisher accounts and social login
(Google, Apple) for end viewers
Deployed on AWS EKS (Kubernetes) with Docker; used AWS S3 and CloudFront for low-latency global
content delivery, AWS MediaConvert for video transcoding, and AWS RDS for managed PostgreSQL
Configured GitHub Actions CI/CD pipelines with automated Jest unit tests and Playwright E2E tests
enforcing 86% minimum coverage before production deployments

TalentBridge — HRTech Recruitment & Workforce Management SaaS
A B2B recruitment and workforce management SaaS platform enabling HR teams and staffing agencies
to manage end-to-end hiring pipelines, candidate assessments, onboarding workflows, and workforce
analytics from a unified interface. TalentBridge reduced average time-to-hire by 42% for pilot enterprise
clients.
Developed a recruitment pipeline and candidate management interface using React.js, Zustand, and
Material-UI with kanban-style hiring boards, interview scheduling, and assessment result tracking
Built REST APIs with NestJS for job posting management, applicant tracking, automated interview
scheduling, onboarding task automation, and workforce analytics reporting
Stored recruitment records, candidate profiles, and onboarding data in PostgreSQL; used MongoDB
for flexible storage of candidate assessment responses and pipeline activity logs
Implemented JWT authentication with OAuth2 SSO integration for enterprise HR systems (Workday,
SAP SuccessFactors) and AWS SES for automated candidate communication
Deployed on AWS ECS with Docker and configured AWS Lambda for asynchronous background
checks and bulk onboarding notification processing
Set up Jenkins deployment pipeline with blue/green strategy and automated Cypress smoke tests
ensuring zero-downtime releases
Improved dashboard query performance by 40% through Redis caching of aggregated workforce
metrics and PostgreSQL materialized view optimization

Kevych Solutions | Junior Full Stack Developer | January 2022 – May 2024
ShieldOps — Cybersecurity Vulnerability Management & Compliance Platform
An enterprise vulnerability management and compliance tracking platform enabling security teams to
discover, prioritize, and remediate infrastructure vulnerabilities across cloud and on-premise
environments. ShieldOps integrated with leading vulnerability scanners and provided automated
compliance reporting against CIS, NIST, and ISO 27001 frameworks.
Contributed to frontend development using React.js, Redux, and Material-UI, implementing
vulnerability dashboard views, risk scoring interfaces, remediation workflow boards, and compliance
report generation screens
Built REST API endpoints with Node.js and Express.js for vulnerability ingestion from scanner
integrations (Nessus, Qualys), risk prioritization scoring, remediation task assignment, and
compliance framework mapping
Designed PostgreSQL schema for asset inventories, vulnerability records, remediation workflows,
and compliance audit trails with append-only event logging
Implemented JWT authentication with OAuth2 SSO integration for enterprise identity providers
(Azure AD, Okta) and enforced MFA for all privileged security operations
Deployed on AWS EC2 within a private VPC with Docker containers; used AWS RDS for managed
PostgreSQL and AWS S3 for encrypted compliance report archiving
Configured GitHub Actions CI pipeline with automated Jest unit tests and Cypress integration tests,
growing test coverage from 38% to 76% over the project lifecycle
Assisted in setting up Jenkins deployment pipeline with manual approval gates for production
releases aligned with security change management policies

RetailEdge — RetailTech Unified Commerce & Inventory Management Platform
A unified commerce platform for mid-size retail chains, consolidating online and brick-and-mortar sales
channels, inventory management, and customer loyalty programs into a single operational backbone.
RetailEdge enabled real-time inventory sync across 80+ store locations and reduced stock
discrepancies by 67%.
Developed a retail operations dashboard and online storefront using Next.js, Zustand, and Tailwind
CSS with real-time inventory status, order management, and loyalty program tracking interfaces
Built backend services with NestJS and GraphQL APIs for multi-channel inventory synchronization,
POS integration, order fulfillment routing, and customer loyalty point management
Stored product catalog, inventory, and order data in PostgreSQL; used MongoDB for flexible storage
of product variant attributes and customer behaviour event logs
Integrated POS system APIs and barcode scanning services for real-time in-store inventory updates
and omnichannel order fulfillment
Implemented JWT-based authentication with RBAC for Store Manager, Inventory Clerk, and Admin
roles
Deployed on AWS ECS with Docker and configured AWS RDS for production PostgreSQL with read
replicas for high-traffic reporting queries
Set up GitHub Actions CI/CD pipeline with automated Jest unit and Playwright E2E tests, enforcing
80% coverage threshold before production promotion

EDUCATION
Kharkiv National University of Radioelectronics | 2021 - 2025
Bachelor’s degree
Software Engineering

LANGUAGES
English: B2
Ukrainian: Native