You will get Back-End Development .NET ASP.NET Core REST API PostgreSQL AWS
Project details
You’ll receive end-to-end Quality Assurance services tailored for .NET applications to ensure stability, security, and production readiness. We combine manual and automated testing to catch issues early, validate business logic, and reduce risks before release.
Our QA process covers functional testing, regression testing, UI and UX validation, API testing, database checks, and cross-browser testing for web and enterprise .NET systems. We focus on real user scenarios to ensure your application behaves reliably in live environments.
We deliver clear, structured bug reports with reproduction steps, screenshots, priorities, and validation of fixes. Our QA specialists collaborate closely with development teams to support faster releases, higher code quality, and long-term maintainability.
.NET C# ASP.NET ASP.NET Core Web API Manual QA Automated QA Selenium Playwright NUnit xUnit Postman REST API Swagger SQL Server Azure CI CD Jira TestRail Git Web Applications Enterprise Systems SaaS Platforms Performance Testing Regression Testing Usability Testing
Our QA process covers functional testing, regression testing, UI and UX validation, API testing, database checks, and cross-browser testing for web and enterprise .NET systems. We focus on real user scenarios to ensure your application behaves reliably in live environments.
We deliver clear, structured bug reports with reproduction steps, screenshots, priorities, and validation of fixes. Our QA specialists collaborate closely with development teams to support faster releases, higher code quality, and long-term maintainability.
.NET C# ASP.NET ASP.NET Core Web API Manual QA Automated QA Selenium Playwright NUnit xUnit Postman REST API Swagger SQL Server Azure CI CD Jira TestRail Git Web Applications Enterprise Systems SaaS Platforms Performance Testing Regression Testing Usability Testing
Programming Languages
ASP.NET, C#, KotlinCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $10,000
These options are included with the project scope.
$10,000
- Delivery Time 30 days
- Number of Revisions 0
20 reviews
(17)
(2)
(0)
(0)
(1)
This project doesn't have any reviews.
MT
Max T.
Aug 18, 2025
Senior Angular TypeScript Front-End Developer & Designer
Outstanding collaboration with this developer from Inventorsoft! They successfully completed a small Angular project in just 30 hours, delivering clean and efficient code. Communication was smooth, they quickly adapted to our system, and all tasks were finished on time. Highly recommend for Angular, or frontend development projects.
MT
Max T.
Aug 4, 2025
Senior C# | .Net Core | ASP.Net | Azure Developer
Excellent collaboration with this C# developer from Inventorsoft! They delivered clean, efficient code and quickly adapted to our system. Communication was clear, and tasks were completed on time. Highly recommend for any C# or backend development projects.
IH
Ihor H.
Jul 22, 2025
Senior Java | Spring | Hibernate | AWS Developer
OT
Oliver T.
Jul 18, 2024
Streamlit + Python dev to support CTO on Data Transformation Algorithms
HD
Henry D.
Jun 21, 2024
Node and MongoDB Website Maintenance (10 hours a week (Opportunity for more), Long Term Support)
Specifically told freelancer to follow instructions regarding whitelisting his IP address. He ended up getting my entire server hacked by whitelsiting the entire internet.
About Maksym
.Net / Java / Angular / Senior Fullstack Developer | AWS | Azure
100%
Job Success
Chernivtsi, Ukraine - 4:02 am local time
Currently, I’m working as the Chief Technology Officer at InventorSoft, a software development agency specializing in web and mobile solutions. I bring a strategic mix of technical depth, team leadership, and product vision to every project.
Why hire me🧐:
📌 Expert in Scalable Java and .Net Architectures
- Over 15 years of experience in developing Java, .Net, C#, Angular scalable applications from different domains.
- Backend systems built with Spring Boot (15+ years) – Delivered scalable microservices and high-performance business logic for enterprise-grade applications.
- ORM & data access with Hibernate – Applied advanced ORM techniques for efficient database interactions, query optimization, and data integrity in distributed systems.
- Frontend development with Angular & Thymeleaf
Designed and delivered 200+ robust backend systems for SaaS products, e-commerce platforms, and enterprise clients.
📌 Cloud-Native Platform Engineering
Specializes in building secure, scalable, cloud-native platforms using leading cloud providers:
- 8+ years of production experience with AWS – Deployed scalable, secure, and high-availability applications.
- 9+ years of hands-on Azure expertise – Delivered enterprise-grade solutions with Azure App Services, Azure DevOps, and SQL/Azure Storage.
- 5+ years of experience on Google Cloud Platform (GCP) – Built and deployed containerized microservices using GKE, Cloud Run, and Firebase.
📌 API-First & Cloud-Native System Design
- Strong background in API integration and microservice architecture.
- Created high-performance APIs for platforms serving 50K+ users, ensuring seamless third-party integration and scalability.
- Experienced in Docker & Kubernetes, enabling CI/CD pipelines and resilient containerized systems.
📌 Full-Stack Leadership & Agile Team Management
- Led and mentored teams of 5–25 developers through all stages of the SDLC—requirements gathering to deployment and maintenance.
- Specialized in building cross-functional teams for backend-heavy systems, modern UIs (React, Angular, Thymeleaf), and DevOps automation.
My latest achievement as a Software Architect:
🤝 Partnered with 45+ SaaS companies to design and deliver secure, scalable platforms using Spring Boot, AWS, and modern cloud services.
🚀 Helped 10 tech startups scale from MVP to production—selecting the right tech stack, defining cloud-native architecture, and assembling strong dev teams.
💼 Enabled 5 client acquisitions through the development of enterprise-grade software that attracted major buyers and investors.
🏭 Led a digital transformation project for a multi-billion-dollar oil company, delivering a secure, API-first platform that automated mission-critical operations.
🧩 Technologies I Specialize In
- Languages/Frameworks: Java, C#, .Net, Spring Boot, Hibernate, Thymeleaf, .Net Core
- Cloud Platforms: AWS (8+ years), Azure (9+ years), Google Cloud (5+ years)
- DevOps Tools: Docker (7+ years), Kubernetes (5+ years)
- Integration & Architecture: RESTful API integration, microservices, clean architecture, CI/CD pipelines
Clients that I am proud of:
💻 Shoeby – A fashion retail platform focused on modernizing the e-commerce experience with intuitive UI, product personalization, and seamless shopping journeys.
💻 CellRebel – Provides advanced mobile network analytics, helping telecom companies improve coverage and performance based on real user data.
💻 Blade – A technology-powered aviation company offering urban air mobility services, including helicopter and seaplane flights.
💻 Matics – A real-time operational intelligence system for manufacturers, offering production insights and process optimization across the factory.
💻 MedischeScholing – A medical e-learning platform that enables healthcare professionals to access, register for, and track accredited training and certifications.
➡️ Learn more about other projects on the InventorSoft portfolio
Keywords:
Java, Backend, Developer, Fullstack, Web, Cross-Platform, Mobile, Application, AI, OpenAI, Service, App, Development, Engineer, Integration, Build, Website, Expert, Spring boot, MySQL, Development Team, Integrated, SaaS Platform, remote, Full-stack, Senior, Software, Client Management, GraphQL, API, .NET, Asp.net, Programmer, Technical Lead, Dashboard, MVC, Developers, ASP.NET, AspNetZero, core, software, MAUI, C#, Angular, .Net, Core, Principal, Performance, Scalability, Microsoft, Blazor, SQL, Server, Frontend, React, Ruby on Rails, RoR/React, front-end, Tailwind, feature, TailwindCSS, Technical Staff, JavaScript, ROR
Steps for completing your project
After purchasing the project, send requirements so Maksym can start the project.
Delivery time starts when Maksym receives requirements from you.
Maksym works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Technical Review
We review your business goals, existing system (if any), and technical requirements. This includes architecture, APIs, databases, and integrations to clearly define scope, risks, and next steps.
Backend Development & Implementation
We build or extend your backend using .NET and ASP.NET Core, implementing REST APIs, business logic, database integration, and security best practices to deliver scalable and maintainable systems.