✅ .NET Full Stack Developer 20+ years of experience
✅ Build powerful .Net solutions that drive business growth
✅ C# .Net developer with 15+ years of experience
✅ Developed 50+ applications
✅ Crafted 200+ user-friendly interfaces that drive real business results.
The clients say
"It doesn't feel like outsourcing, but instead like we have our own remote developers."
"They had great soft and hard skills and were full of ideas and drive!"
I lead the fullstack and mobile development team at Itexus, a professional software development and consulting company focused on Fintech, Insurance, Healthcare, etc.
I have 20+ years of experience in the .net architect development of web and mobile applications, .net, python, node.js, java developer as well as javascript, react .net, angular, AI frameworks and libraries.
👨💻.NET Full Stack Expertise
.NET full stack – strong background in End-to-end development from database to UI using Microsoft stack
.NET Core – deep expertise, cross-platform backend services
.NET Angular – Full stack development on .NET backend and Angular frontend for enterprise-grade solutions
.net core angular – Building complete systems with seamless backend–frontend integration
.NET Core Angular – Scalable and secure web apps using .NET Core and Angular
Angular .NET solutions – Using Angular for UI and .NET for API and business logic
.net core developer – Proven experience delivering high-performance backend solutions using .NET Core
.net core react – Building robust, scalable web applications with .NET Core APIs and React frontends
c# .net developer – End-to-end development expertise using C# and the .NET ecosystem
c# .net core – Advanced solutions built on C# with .NET Core for modern, cross-platform applications
👨💻 BACKEND Development
Python: Expert in Python for server-side development
Frameworks: Proficient in Django and Flask for building web applications
Databases: Skilled in SQL, PostgreSQL, MySQL, and MongoDB for efficient data management
Architecture: Experienced in applying MVC patterns for scalable applications
APIs: Capable of integrating external services through REST and GraphQL
👨💻 FRONT END Development
Proficient in HTML5, CSS responsive, JavaScript
Experienced in React.js, Angular, Vue.js, react native, ionic, xamarin developer
Responsive, cross-browser, ui/ux designer, ux/ui dashboard, ui ux designer app
👨💻AI TOOLS
OpenAI API, DeepFace, ML/DL frameworks (TensorFlow, Keras, PyTorch, Scikit-learn), LangChain, Mistral, AgenticAI, Transformers
RAG + custom AI tools: Document recognition and processing, Market Grabber, project management bots, AI for telephony, video/audio analysis
Mobile App Development
Native Mobile Development: Android, Kotlin, Java, iOS, Swift, KMP, KMM.
Cross-Platform/Hybrid App Development: Flutter, Swift, Objective C, React Native, Xamarin, MAUI.
General Expertise
Website & Full Stack Development: Full stack development with ai .net full stack developer, .net software engineer, .net programmer, full stack developer, ai python full stack developer django, full stack web developer, full stack development, cms developer
DevOps/DevSecOps: AWS, Azure, Docker, Kubernetes, GitLab-CI, Ansible, Terraform, etc
Cross-platform app building with three.js, web application design, webflow web designer, website builders
Integration tools: Data integration, websockets, ABP Framework, discord, Autotask
Experienced in .net core web api, fullstack .net developer roles, with strong skills as a .net specialist. Skilled angular .net react developer, java developer with solid c sharp expertise. Worked on kogito for business automation, delivered ui ux-focused solutions. As an azure data engineer, handled scalable data pipelines. rust developer, python projects include backend developer tasks. Built app as a xamarin and web developer using java and javascript. Skilled in postgresql and web scrapping. Maintained legacy systems with .net webform. Collaborated with nft marketers, managed nft collab manage tasks. Full stack with react nodejs, modern react, including react typescript, react native developer roles. Acted as product owner in agile teams. Cloud deployments done on azure. Built interactive UIs using blazor.
Why Choose us
Microsoft certified talented developers and senior .net developer team
High QA standards, including qa engineer roles
Modern solutions: NFT programmer, metaverse, Microsoft .net, windows 10, Power Apps developer, SharePoint, market grabber
Scalable team: full stack software developer, front end programmer, ios developer, ui ux designer
Industries
Banking, Trading, Cryptocurrency, Asset Management, Lending, Retail, Real Estate & Property Management, Food Delivery, Entertainment, Hospitality, Construction, Sports & Fitness, Travel & Tourism, Wellness, Medical Dashboard, Marketplace, E-commerce, Automotive, Human Resources, Education, E-learning, AI Assistants
Seek new projects to put our .net ai, bring value to individuals, startups, companies.
React
Angular
C#
.NET Framework
JavaScript
ASP.NET Core
Mobile App Development
Android App Development
iOS Development
Artificial Intelligence
TypeScript
Web Application
AI Development
Android
AI Agent Development
Python
Node.js
React Native
MySQL
Django
Robert W.
Krakow, Poland
$50/hr
5.0
22 jobs
As a Senior Developer with over a decade of experience, I’ve dedicated my career to mastering backend development and resolving complex performance issues across the entire stack. My expertise spans coding, databases, and underlying operating systems, where I’ve consistently delivered high-performance, scalable solutions.
I specialize in optimizing and troubleshooting with a deep proficiency in Rust, PHP, MySQL, Varnish, nginx, Linux, FreeBSD, and AWS. My work has empowered clients like AWS Professional Services and Shure Inc. to achieve their goals, from building APIs that handle over 100,000 requests per second to creating custom, geographically distributed high-availability CDNs.
One of my proudest achievements is maintaining an eight-figure monthly billing system, ensuring both reliability and efficiency at scale. Beyond technical skills, I’m known for my ability to communicate complex ideas clearly to non-technical stakeholders while effectively leading and mentoring junior developers.
I’m passionate about continuing to push the boundaries of what’s possible in backend development and am always eager to take on new challenges that require innovative solutions and high-level problem-solving.
Rust
MySQL
SQL
PostgreSQL
CSS
Symfony
Linux
Ubuntu
HTML
JavaScript
PHP
Unix
Linux System Administration
Amazon Web Services
Gregory B.
Gdansk, Poland
$50/hr
5.0
5 jobs
I build mobile apps, web apps and full IT systems end-to-end - from concept and architecture to production deployment and long-term maintenance. Clients work with me when they need a fast, reliable engineer rather than a slow, bureaucratic software house.
I bring 6+ years of experience delivering products for founders, startups and established businesses. My work has been recognised internationally (including representation at Regeneron ISEF in the US and multiple innovation awards for my AI-driven app wheretopark.app). I combine engineering, product thinking and business awareness, making development predictable and outcome-driven.
What I do
- Mobile apps (iOS, Android: Capacitor, Flutter)
- Modern web apps & internal tools (SvelteKit, Next.js, TypeScript)
- Backend systems & APIs (Rust, Go, Node)
- Integrations, automations and custom business systems
- System architecture, scalable infrastructure, CI/CD
- Cloud deployment (AWS, Cloudflare, Supabase, Firebase)
Why clients choose me
- Fast delivery: first visible results in weeks, not months
- Direct communication with the engineer - no intermediaries
- Deep understanding of business goals, not just tasks
- Architecture designed to last years, not months
- High standards of code quality, testing and reliability (>99.9% uptime on my systems)
Selected projects
- wheretopark.app: AI-powered parking assistant used in real cities (Mobile + Web + AI)
- EnVest: investment platform used by US-based investor groups (Mobile, Fintech)
- BusyBee: automated hiring platform matching candidates to employers (Web, HR Tech)
How I work
- Discovery: clarify goals, scope and constraints
- Architecture & design: system blueprint and UI mockups
- Development: iterative delivery with continuous demos
- Launch: deployment, monitoring and long-term support
Tech stack
Rust, Golang, TypeScript, SvelteKit, Next.js, React, Capacitor, Flutter, PostgreSQL, MongoDB, InfluxDB, Cloudflare, AWS, Docker, Kubernetes, CI/CD, Linux.
If you need a developer who combines engineering skill with clear communication and fast execution, I will deliver a dependable product without unnecessary overhead.
Rust
JavaScript
TypeScript
SQL
Web Application
Serverless Computing
Linux
Microcontroller
Web Server
Flutter
Git
Swift
Software Development
Przemyslaw S.
Bialystok, Poland
$50/hr
4.6
17 jobs
I exploit price differences, customer retention bonuses and delays. I focus on modelling selection pressure and exploring how life might ultimately end.
I use Gleam, Go, Rust and Haskell for a mix of performance, reliability, and rapid development. I develop own ergonomic programming tools.
Rust
Machine Learning
Haskell
Knowledge Representation
Algorithms
Software Architecture & Design
Ergonomics
Indexing
Topology Optimization
Bart K.
Lodz, Poland
$60/hr
5.0
2 jobs
I'm a developer with experience varying from game programming to full stack roles helping build web applications.
I use JS/TS, PHP, C & currently exploring the Rust language.
Rust
Web Development
Web Application
TypeScript
NestJS
HTML5
ESP32
C
MySQL
PostgreSQL
Linux
SQLite
Piotr S.
Bedzin, Poland
$15/hr
5.0
1 jobs
I am programming for 6 years overall. I got deep into java programming including deep understanding of java bytecode. After that i did some C++. Then i got intereseted in rust. I also know python, javascript, html, css, typescript, php. I am doing my own personal projects in almost all of my free time so i have an experience. I always try to do everything as perfect as possible, i avoid making bugs as much as possible, i can also debug and fix existing bugs (i like doing that). I feel confident to write in any language and library as long as its well documented and has some examples. For now i want to see what people expect, then i will try to make real money.
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