Максим

MAKSYM KAPITANIUK
SENIOR FULL STACK DEVELOPER
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Lviv
[open contact info](look above in the "contact info" section)

SUMMARY
Dedicated Senior Full Stack Developer with 5+ years of experience building scalable, high-quality
web applications across E-commerce, FinTech, SaaS, Healthcare, and EdTech domains. Proficient
across the full modern JavaScript ecosystem — React.js, Next.js, NestJS, and Node.js — with
extensive hands-on experience deploying cloud-native solutions on AWS. Known for designing
robust REST and GraphQL APIs, establishing reliable CI/CD pipelines, and delivering well-tested,
maintainable code. A collaborative engineer who thrives in agile environments and takes full
ownership from architecture through to production.

SKILLS
Programming Languages: TypeScript, JavaScript (ES6+), SQL, HTML5, CSS3
Frontend Frameworks & Libraries: React.js, Next.js, Redux, Zustand, Material-UI, Tailwind CSS
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
Temy | Senior Full Stack Developer February 2025 - August 2026
MedFlow - Healthcare Patient Engagement & Telemedicine Platform | Healthcare
A GDPR-compliant telemedicine platform serving private healthcare networks across the EU,
enabling online appointment booking, video consultations, EHR management, and automated post-
visit care plan delivery. The platform replaced fragmented legacy systems for a network of 60+
clinics and reduced administrative overhead by 35%.
Led frontend development using Next.js, Redux Toolkit, and Material-UI, building responsive
clinician and patient-facing dashboards with role-based UI rendering and accessibility
compliance
Developed core NestJS backend services with GraphQL APIs for patient registration,
appointment scheduling, teleconsultation token management, and care plan automation
Designed PostgreSQL multi-tenant schema for patient records, clinical notes, prescriptions, and
appointment history with immutable audit logging
Implemented OAuth2 + JWT authentication with MFA support, integrated with Auth0 for
enterprise SSO across clinic networks
Deployed on AWS EKS (Kubernetes) with Docker; used AWS RDS for managed PostgreSQL,
AWS S3 for encrypted medical document storage, and CloudFront for secure content delivery
Configured GitHub Actions CI/CD pipelines with automated Jest unit tests and Playwright E2E
tests enforcing 85% minimum coverage before production deployments
Contributed to GDPR compliance implementation including consent management, data subject
request handling, and right-to-erasure workflows

LearnSphere - EdTech Corporate Learning Management System | EdTech
A B2B corporate learning management SaaS platform enabling enterprises to create, deliver, and
track employee training programs at scale. LearnSphere supported SCORM-compliant course
content, live webinar scheduling, and AI-assisted skill gap analysis for HR and L&D teams.
Built an interactive course builder and learner portal using React.js, Zustand, and Tailwind CSS
with drag-and-drop curriculum management and real-time learner progress tracking
Developed REST APIs with NestJS for course lifecycle management, SCORM content delivery,
learner assessment scoring, and automated certification issuance
Stored course content, learner records, and assessment data in PostgreSQL; used MongoDB
for flexible storage of SCORM runtime data and learner activity logs
Integrated Firebase Cloud Messaging for real-time learner notifications and course completion
reminders
Implemented JWT authentication with OAuth2 SSO support for enterprise HR system
integrations (Workday, BambooHR)
Deployed on AWS ECS with Docker and configured AWS Lambda for asynchronous certificate
generation and bulk learner progress report processing
Set up Jenkins deployment pipeline with blue/green strategy ensuring zero-downtime releases
and automated Cypress smoke tests post-deployment

Reenbit | Full Stack Developer April 2023 - November 2024
PropVault - PropTech Property Investment & Portfolio Management Platform | PropTech
A cloud-based property investment platform enabling individual investors and asset management
firms to discover, evaluate, and manage real estate portfolios across European markets. PropVault
integrated live market data feeds, automated valuation models, and document management
workflows to streamline the end-to-end investment journey.
Developed a responsive investor dashboard using React.js, Redux, and Tailwind CSS featuring
interactive portfolio analytics, property comparison tools, and document management
workflows
Built GraphQL APIs with NestJS for property search and filtering, portfolio performance
calculation, valuation model integration, and investor reporting
Designed PostgreSQL multi-tenant schema for investor profiles, property listings, transactions,
and valuation history with row-level security policies
Implemented OAuth2 + JWT authentication with RBAC for Investor, Fund Manager, and Admin
roles, integrated with Auth0 for enterprise identity federation
Integrated AWS S3 for property document and image storage, CloudFront for global media
delivery, and AWS SES for automated investor report distribution
Deployed on AWS EKS (Kubernetes) with Docker; configured AWS RDS for production
PostgreSQL with multi-AZ high availability
Established GitHub Actions CI/CD pipeline with automated Jest unit tests and Cypress
integration tests, maintaining 80% coverage across all critical investment workflows
BrandPulse - MarTech Multi-Channel Campaign Management Platform | MarTech
A B2B marketing operations platform enabling brands and agencies to plan, execute, and measure
multi-channel marketing campaigns across email, social, and paid media channels from a unified
interface. BrandPulse reduced campaign setup time by 50% through workflow automation and
template-driven campaign creation.
Built a campaign management interface using Next.js with Zustand and Material-UI for
campaign planning, audience segmentation, creative asset management, and performance
reporting
Developed REST APIs with Node.js and Express.js for campaign lifecycle management,
audience rule configuration, and automated performance alert generation
Stored campaign and audience data in PostgreSQL; used MongoDB for flexible storage of
campaign creative assets and engagement event logs

Integrated third-party marketing APIs (Mailchimp, Meta Ads, Google Ads) via adapter-pattern
backend services for unified campaign execution
Implemented JWT authentication with OAuth2 for agency and brand SSO, supporting multi-
workspace access management
Deployed on AWS EC2 with Docker using auto-scaling groups; used AWS Lambda for
asynchronous campaign scheduling and AWS S3 for creative asset storage
Configured Jenkins CI/CD pipeline with staged rollouts and automated Playwright E2E tests
covering all critical campaign creation and reporting flows

Teamvoy | Junior Full Stack Developer December 2020 - January 2023
CartNest - E-commerce Multi-Vendor Marketplace Platform | E-commerce
A scalable multi-vendor e-commerce marketplace connecting independent sellers with buyers
across Eastern European markets. CartNest provided vendors with a unified storefront
management system, automated inventory sync, and integrated payment processing, reducing
vendor onboarding time from weeks to hours.
Contributed to storefront development using React.js, Redux, and Material-UI, implementing
product listing pages, shopping cart, checkout flow, and vendor dashboard interfaces
Built REST APIs with Node.js and Express.js for product catalog management, inventory
tracking, order processing, and vendor onboarding workflows
Designed PostgreSQL schema for multi-vendor product catalogs, orders, inventory, and
payment records; used MongoDB for flexible product attribute and review storage
Integrated Stripe payment gateway with idempotent webhook handling and OAuth2 social login
(Google, Facebook) via Passport.js
Implemented JWT-based authentication with RBAC supporting Buyer, Vendor, and Admin
permission tiers
Deployed on AWS EC2 with Docker; used AWS S3 and CloudFront for product image storage
and global CDN delivery
Configured GitHub Actions CI pipeline with automated Jest unit tests and Cypress integration
tests, growing coverage from 42% to 77% over the project lifecycle

FinLedger - FinTech SMB Accounting & Invoicing SaaS | FinTech
A cloud-based accounting and invoicing SaaS platform designed for small and medium-sized
businesses, enabling automated bookkeeping, multi-currency invoicing, expense tracking, and
financial reporting with bank account integration via open banking APIs.
Developed accounting dashboard and invoicing interface using Next.js, Zustand, and Tailwind
CSS with real-time financial summary widgets and multi-currency invoice generation
Built backend services with NestJS and GraphQL APIs for bookkeeping automation, expense
categorization, invoice lifecycle management, and financial report generation
Stored financial records, invoices, and expense data in PostgreSQL with strict audit logging and
soft-delete policies for compliance
Integrated open banking APIs (Plaid, Tink) for automated bank transaction import and
reconciliation
Implemented JWT authentication with OAuth2 for bank account connections and AWS SES for
automated invoice delivery and payment reminder emails
Deployed on AWS ECS with Docker and configured AWS RDS for managed PostgreSQL with
automated daily backups
Set up Jenkins deployment pipeline with automated Playwright E2E tests across all critical
accounting and invoicing workflows before each production release

EDUCATION

Lviv Polytechnic National University | 2020 - 2024
Software Engineering
IT Step Computer Academy | 2021 - 2024
Associate’s degree

LANGUAGES
English: Professional Working Proficiency (B2)
Ukrainian: Native