You will get .NET + Angular Bug Fixes
Rising Talent
Project details
I provide fast and reliable bug fixing for existing .NET and Angular applications. I analyze the root cause, fix issues safely, improve stability, and ensure your system works correctly without breaking existing functionality. Ideal for production issues, regressions, and urgent fixes.
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$10
|
Standard
$30
|
Advanced
$50
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 1 | 2 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
About Roman
.NET Developer | Full Stack Developer | Angular | SaaS | Web App
Lviv, Ukraine - 7:40 pm local time
I help companies design and deliver secure, high-performance web applications using .NET and modern frontend frameworks, with a strong focus on clean architecture, maintainability, and long-term product growth.
Many teams run into issues as they scale—slow APIs, fragile integrations, and codebases that become hard to manage. I focus on solving these problems early by building robust backend systems and scalable architectures from day one.
What I Usually Help Clients With
• Building scalable SaaS platforms and enterprise web applications
• Designing high-performance APIs and backend systems
• Modernizing legacy systems and improving architecture
• Integrating external APIs and business systems
• Preparing products for cloud deployment and growth
Experience & Credentials
• 8+ years of commercial experience in .NET development and technical leadership
• 30+ completed projects on Upwork
• 100+ projects delivered with my Intelvision engineering team over the last 5 years
• 100% Job Success | 1900+ hours | $100K+ earned
I’ve worked with companies and platforms such as Visoplan, ING+, Jincom, Kiflo, and other SaaS and enterprise products.
Many of my clients return for additional work once their systems start scaling.
Core Technology Stack
Backend
C#, .NET / ASP.NET Core, Web API, SignalR, Microservices
Frontend
Angular, TypeScript, modern SPA architecture
Databases
PostgreSQL, SQL Server, Redis
Cloud & DevOps
Azure, AWS, Docker, Kubernetes, CI/CD pipelines
Architecture & Infrastructure
RabbitMQ, Hangfire, MediatR, Elasticsearch, GraphQL
Security & Integrations
I regularly work with real business integrations including:
Stripe
Xero
QuickBooks
Microsoft Graph API
Salesforce
SAP / Dynamics
Authentication & security implementations include OAuth2, JWT, Auth0, Azure AD B2C, and secure cloud key management.
Industry Experience
• SaaS platforms
• FinTech systems
• PropTech & ConTech solutions
• Logistics platforms
• Custom enterprise software
How I Work
I prefer long-term partnerships where I can take ownership of architecture and delivery, but I’m also happy to help with specific tasks such as feature development, system audits, or architecture improvements.
My focus is always the same: build software that works reliably in production and supports business growth.
Let’s Build Something Solid
If you're building a SaaS product, scaling an existing platform, or modernizing a legacy system, feel free to reach out.
I’ll be happy to review your architecture and suggest a practical technical approach.
Steps for completing your project
After purchasing the project, send requirements so Roman can start the project.
Delivery time starts when Roman receives requirements from you.
Roman works on your project following the steps below.
Revisions may occur after the delivery date.
Interview with the client