01 / .NET & Umbraco
A bug to fix. A feature to add.
Bug fixes, API changes, forms and improvements to existing .NET or Umbraco websites.
Discuss this taskFULL-STACK .NET DEVELOPER
Tel Aviv · Freelance projects & .NET roles
SOFIA MUSEICHUK
Better systems.
Less manual work.
- C# · ASP.NET Core · SQL · JavaScript · Umbraco
I’m Sofia, a full-stack .NET developer. I fix, extend and simplify the systems your business already uses.
Hi, I’m Sofia. Let me show you around.
FREELANCE / HOW I CAN HELP
What needs to work better?
Focused improvements to existing systems, from the database to the screen.
Remote collaboration · One-off tasks welcome
02 / SQL Server
Slow queries. Old procedures.
Investigate slow queries, stored procedures and data-access logic in an existing application.
Discuss this task03 / APIs & automation
Less copying. Fewer manual steps.
Connect external APIs or improve repeated work in an internal dashboard or business workflow.
Discuss this task- 01
Describe the task
What happens now, and what should happen instead?
- 02
Agree on the scope
We agree on the deliverables, timing and cost before implementation.
- 03
Build & verify
I implement the agreed changes and explain how to review the result.
01 / SELECTED WORK
Systems I’ve improved.
Commercial delivery and personal projects, with the decisions behind the work.
COMMERCIAL / FULL STACK
Modernizing a client back office
Legacy SQL, manual changes and a dashboard that needed a clearer workflow.
I independently improved SQL, server-side logic, automation and the interface.
The client expressed interest in buying the dashboard.
Read the case study- Interface
- API & business rules
- Database
PERSONAL PROJECTS / RUN LOCALLY
Cartograph / .NET 10 · Roslyn · SQL · MCP
Understand the system before changing it.
A developer tool for exploring C#, SQL and Umbraco dependencies before making a change.
Read the case study
Life RPG / React Native · Expo · TypeScript
Habits become quests. Progress becomes visible.
A habit-building app with character creation, quests and visible progress.
Read the case study03 / ABOUT
An engineer.
A human perspective.
Art after dark.
Clarity in the code.
I’m Sofia, a full-stack developer in Tel Aviv. I care about what happens between a business requirement and the person using the result.
At eWave Online, I owned features across public-sector, financial-services and enterprise web projects — from requirements through deployment. My work connects backend services, SQL data and the interface, in both modern .NET and established codebases.
LET’S TALK IN
English & Hebrew · Fluent
Ukrainian & Russian · Native
German · Conversational
2024–2026
Full Stack Developer
eWave Online
2023–2024
Software Development Program
Sela College · Full-stack focus
2021–2023
International Cooperation
IDF · Noncommissioned officer
LET’S WORK TOGETHER
Tell me what you need.
A short description is enough to start. No technical specification needed.
Have an existing system that could work better? Let’s define a useful next step.
sofia.museichuk@gmail.comHiring for a .NET role?
I’m also open to full-stack .NET opportunities. My CV and LinkedIn have more about my experience.
Can I start with a small task?
Yes. I take one-off requests and work remotely. We agree on a specific task and its scope before starting.
What about ongoing support?
Ongoing support and further changes require a separate agreement. They are not included automatically in a one-off task.
How much will it cost?
The price depends on the task, the existing code and the access needed. We agree on scope and cost after reviewing the requirements.