Ivan

Ivan SUMMARY
Shepelev Versatile Full Stack Developer with more then 5 years of experience building
Full Stack Developer production-grade web applications across FinTech, SaaS, GreenTech, and Smart
Mobility domains. Proficient across the full JavaScript stack — React.js and Next.js
C O N TA C T on the frontend, NestJS and Node.js on the backend — with solid cloud engineering
[відкрити контакти](див. вище в блоці «контактна інформація») experience on AWS. Skilled in designing microservice architectures, implementing
secure authentication flows, and maintaining high-coverage test suites. Thrives in
[відкрити контакти](див. вище в блоці «контактна інформація») agile, cross-functional teams and takes ownership from architecture decisions
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through to production deployment.
SKILLS
WORK EXPERIENCE
Programming Languages:
TypeScript, JavaScript (ES6+),
Python, SQL, HTML5, CSS3 Senior Full Stack Developer · Borcelle Studio February 2024 – June 2026
Frontend Frameworks & FleetIQ - Smart Mobility Fleet Management Platform
Libraries: Domain: Smart Mobility
React.js, Vue.js, Nuxt.js, Next.js, A real-time fleet operations platform serving logistics companies and urban mobility
Redux, Zustand, Three.js, operators, enabling live vehicle tracking, route optimization, driver performance
WebGL, Material-UI, Tailwind monitoring, and predictive maintenance scheduling. The platform reduced operational
CSS costs for pilot customers by an average of 28% within the first six months of adoption.
Backend Frameworks:
Led frontend architecture using Next.js with Redux Toolkit for complex real-time
Node.js, NestJS, Express.js,
FastAPI state management and Tailwind CSS for a responsive, map-integrated operations
dashboard
APIs:
REST, GraphQL, WebSockets, Built real-time vehicle tracking UI with WebSockets, rendering live GPS telemetry
OpenAPI/Swagger across interactive map views for fleets of up to 2,000 vehicles
Databases: Developed core backend services with NestJS exposing GraphQL APIs for fleet
PostgreSQL, MongoDB, MySQL, configuration, trip management, driver assignment, and maintenance scheduling
Redis Designed PostgreSQL schema for geospatial route data, driver records, and
Data Processing & Reporting: maintenance logs; used MongoDB for high-frequency telemetry event storage
Pandas, ETL, Celery, openpyxl, from IoT devices
ReportLab Implemented OAuth2 + JWT authentication with granular RBAC for fleet
Testing: administrators, dispatchers, and drivers
Jest, Cypress, Playwright, React
Testing Library, pytest Deployed microservices on AWS EKS (Kubernetes) with Docker, using AWS IoT
Core for vehicle telemetry ingestion, AWS RDS for relational data, and S3 for trip
DevOps & CI/CD:
report archiving
Docker, Kubernetes, GitHub
Actions, Jenkins Configured GitHub Actions pipelines with automated Jest unit tests, Playwright
Cloud Platforms: E2E tests, and Docker image vulnerability scanning on every PR
AWS (EC2, S3, Lambda, RDS, Implemented Redis pub/sub for real-time alert broadcasting and API response
CloudFront, ECS, EKS), Firebase, caching, reducing dashboard load latency by 38%
Azure Conducted weekly architecture reviews and mentored 2 junior developers on
Authentication & Security: TypeScript patterns and testing best practices
JWT, OAuth2, Auth0, Passport.js
CarbonTrack — GreenTech Corporate Carbon Footprint SaaS
Version Control: Domain: GreenTech / SaaS
Git, GitHub, GitLab
A B2B SaaS platform helping mid-to-large enterprises measure, report, and offset their
E D U C AT I O N carbon emissions across Scope 1, 2, and 3 categories in alignment with GHG Protocol
standards. Designed to support ESG reporting workflows and regulatory compliance
Odessa College of Computer requirements across the EU.
Technologies
Software engineering Developed a multi-tenant dashboard using React.js, Zustand, and Material-UI for
2020 – 2024 emissions data input, automated calculations, and exportable ESG compliance
reports
LANGUAGES Built REST APIs with NestJS for emissions factor management, data ingestion from
English: Professional Working third-party utility providers, and PDF/Excel report generation
Proficiency (B2) Modelled emissions data across organisational hierarchies in PostgreSQL with
Ukrainian: Native multi-tenant schema isolation; used MongoDB for flexible storage of unstructured
Italian: A2 supplier emission disclosures
Integrated AWS Lambda for scheduled emissions recalculation jobs and AWS SES
for automated ESG report delivery to stakeholders

Implemented JWT authentication with Auth0 supporting SSO via enterprise
identity providers (Azure AD, Okta)
Deployed on AWS ECS with Docker, utilizing AWS S3 for report storage and
CloudFront for secure document delivery
Established Jenkins CI/CD pipeline with blue/green deployment strategy ensuring
zero-downtime releases
Achieved 88% test coverage using Jest for unit tests and Cypress for integration
tests across critical reporting workflows
Full Stack Developer · Softonix April 2022 – November 2023
MediCore — Healthcare Patient Records & Telemedicine Platform
Domain: Healthcare
A GDPR-compliant digital health platform enabling private clinics to manage patient
electronic health records (EHR), schedule teleconsultations, and automate post-visit care
plan delivery. The solution replaced legacy paper-based workflows for a network of 40+
clinics across Central and Eastern Europe.
Built a responsive EHR management interface using Vue.js, Nuxt.js, Pinia, and
Material-UI, supporting clinician, receptionist, and patient-facing views within a
unified multi-role application
Developed REST APIs with Node.js and Express.js for patient registration,
appointment scheduling, teleconsultation session management, and care plan
delivery
Designed PostgreSQL relational schema for patient records, clinical notes,
prescriptions, and appointment history with strict audit logging
Implemented JWT authentication with OAuth2 for social login and integration with
national eHealth identity systems
Integrated Firebase Cloud Messaging for real-time appointment reminders and
care plan notifications on web and mobile
Deployed on AWS EC2 with Docker and configured AWS RDS for managed
PostgreSQL with automated daily backups and point-in-time recovery
Set up GitHub Actions CI/CD pipelines with automated Jest unit tests and
Playwright E2E test suites, enforcing 80%+ coverage before production merges
Contributed to GDPR compliance implementation including consent management,
data subject access request handling, and right-to-erasure workflows
LogiFlow — B2B Logistics & Supply Chain Management SaaS
Domain: SaaS
A supply chain visibility and logistics orchestration SaaS platform allowing importers,
freight forwarders, and 3PL providers to track shipments, manage warehouse inventory,
and automate customs documentation across international trade corridors.
Developed shipment tracking dashboard using Next.js with Zustand and Tailwind
CSS, supporting real-time shipment status updates and document management
workflows
Built GraphQL APIs with NestJS for shipment lifecycle management, warehouse
inventory queries, and automated customs document generation
Stored shipment and inventory data in PostgreSQL; used MongoDB for flexible
storage of diverse carrier event payloads from third-party logistics APIs
Integrated carrier tracking APIs (DHL, FedEx, DPD) via an adapter-pattern backend
service for unified shipment event normalization
Implemented OAuth2 authentication with JWT session management and IP-based
access restrictions for enterprise clients
Deployed on AWS EC2 with Docker and configured Kubernetes via AWS EKS for
autoscaling during high-volume shipment processing periods
Configured Jenkins deployment pipeline with staged rollouts to dev, staging, and
production, including automated smoke tests post-deployment
Implemented Redis caching for carrier rate lookups and shipment status queries,
cutting average API response time by 35%

Softonix DataPulse — Internal Data Analytics & Reporting Service
Domain: SaaS / Data Engineering
An internal Python-based analytics and reporting microservice used across Softonix client
projects to aggregate application logs, compute product usage metrics, and generate
automated weekly reports for stakeholders.
Developed a Python data-processing service using FastAPI and Pandas to ingest
and transform event data from PostgreSQL and third-party APIs
Built scheduled ETL jobs with Celery and Redis for nightly aggregation of usage
metrics and anomaly detection
Implemented automated report generation (Excel/PDF) with openpyxl and
ReportLab, delivered via email and Slack webhooks
Containerized the service with Docker and integrated it into the existing GitHub
Actions CI/CD pipeline with pytest test coverage
Exposed REST endpoints documented with OpenAPI/Swagger; added JWT-based
authentication for internal access control
Reduced manual reporting effort by ~70% and cut report generation time from
hours to minutes
Junior Full Stack Developer · Svitla Systems September 2020 – January 2022
SpendWise - FinTech Personal Finance & Budgeting Platform
Domain: FinTech
A consumer-facing personal finance management application enabling users to aggregate
bank accounts, categorize transactions automatically, set savings goals, and receive AI-
powered budget recommendations. Built for a European FinTech startup targeting
millennial and Gen Z users.
Contributed to frontend development using React.js, Redux, and Material-UI,
implementing transaction categorization views, budget dashboards, and savings
goal tracking interfaces
Developed backend REST API endpoints with Node.js and Express.js for bank
account aggregation via open banking APIs (Plaid, Tink), transaction
categorization, and budget rule management
Designed PostgreSQL database schema for user accounts, linked financial
institutions, transaction history, and savings goals
Implemented JWT authentication with refresh token rotation and OAuth2 flows for
open banking provider connections
Deployed application on AWS EC2 with Docker containers, using AWS RDS for
production PostgreSQL and AWS S3 for user statement archiving
Wrote unit and integration tests using Jest and Cypress, contributing to an
increase in overall test coverage from 45% to 76%
Configured GitHub Actions CI pipeline for automated testing and linting on every
pull request
Participated in agile ceremonies, contributed to sprint planning, and independently
delivered 3 major feature modules across the project lifecycle