Іван

Ivan Shevchuk
.NET Backend Developer
Ternopil, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | English: B1

PROFESSIONAL SUMMARY
.NET Backend Developer with 4+ years of commercial experience building scalable backend systems and APIs using
C# and ASP.NET Core. Experienced in designing REST and GraphQL services, integrating cloud services (AWS) and
third-party platforms (Stripe), and working with PostgreSQL and SQL Server in SaaS and enterprise environments.
Focused on clean architecture, API design, and performance optimization.
CORE COMPETENCIES
Backend API Development | System Integrations | Payment Systems
Secure File & Video Processing | Data Pipelines | Query Optimization
TECHNICAL SKILLS
Backend: C#, .NET 6/7/8, ASP.NET Core, REST API, GraphQL
Architecture: Clean Architecture, Layered Architecture
Databases: PostgreSQL, Microsoft SQL Server, Entity Framework, LINQ
Cloud & DevOps: AWS S3, AWS CloudFront, Docker
Payments & Auth: Stripe, secure access links, user authorization
Frontend: React, JavaScript, HTML, CSS
Tools: Git, Jira, Forest Admin
PROFESSIONAL EXPERIENCE
.NET Backend Developer
Apiko — .NET Backend Developer
Dec 2021 – Present
Syntho — Cross-Platform SaaS Application
• Designed and implemented subscription billing system using Stripe API, supporting lifecycle management,
automated payments, and webhook-driven event processing
• Integrated AWS S3 and CloudFront for secure video storage and streaming pipeline with token-based access
control and optimized content delivery
• Built admin management tools using Forest Admin for internal operations and data managemen t
Vidico — Secure File & Video Sharing Platform
• Architected GraphQL API implementing schema design, resolvers, and query optimization for flexible client
queries
• Integrated AWS S3 and CloudFront for encrypted file storage and video streaming with secure access link
generation and expiry logic
• Implemented fine-grained user authorization and access control for file and video sharing workflows
Jobheron — HR Recruitment Platform
• Developed candidate filtering engine and recruitment workflow automation using ASP.NET Core for large-scale
candidate management
• Designed and optimized complex PostgreSQL queries for large candidate datasets, improving query performance
• Built REST API layer consumed by React frontend, implementing validation, error handling, and secure access
logic
Procon — Internal Admin Tool
• Built reusable libraries for CSV and XLSX file parsing, validation, and transformation supporting complex multi-
column datasets
• Developed automated data import pipelines with internal API integration, replacing manual data entry processes
EDUCATION & CERTIFICATIONS
Master's Degree in Computer Science | OWASP API Security Top 10 (2023) | Docker Fundamentals