Project 1
AI Fashion Discovery
A beta launch site that introduces an AI shopping assistant and guides visitors through sign-in.
- Year
- 2025
- Stack
- Next.js · React · Framer Motion · Firebase
Bohdan Starosivets · Full-stack engineer, Kyiv ·
I help product teams build and ship software.
I work across the product, from databases and APIs to web and mobile interfaces. My work includes AI agent platforms, .NET applications and tools businesses use every day.
- Building products
- Since 2022
- Job Success
- 100%
- Hours
- 3,000+
- Badge
- Top Rated Plus
Ukraine · home base
Jooble2022 — 2023
I joined after our team won a university hackathon and worked on job search and candidate matching.
Flurium2023 — 2024
I built web applications for clients, including e-commerce stores, content management systems and tools for automating business tasks.
SoftceryJan — Jul 2025
I built checkout and payment flows and merchant dashboards for an e-commerce product, working across the frontend and backend.
London, UK
TimesliceSep 2025 — Now
I build features for LawOne, helping law firms manage matters, time, billing and documents. My work spans .NET APIs and Blazor interfaces.
AcuPower2024
I added website features and improved technical SEO for an Acumatica business software consultancy.
New York, USA
ACT Labs2025
I played a key role across the frontend and backend of two AI products: Act Flow, a marketplace for hiring agents, and Figment, an autonomous trading platform.
Singapore
OtterDev2025
I built marketing websites with content managed in Sanity, and a beta launch site for an AI shopping assistant.
Oslo, Norway
Prosper AI2024
I built admin dashboards, client interfaces and security features for an AI product that helps estate agents prepare property sales prospectuses.
Israel
Upwork client
“Great developer! would definitely recommend and will use his services again in the future when needed.”
Shahar B. · ★★★★★
United States · under NDA
Confidential clientOct 2025 — Now
I work across a computer vision platform, from machine learning to web and mobile applications. Project details are confidential.
Selected work
Products I've built
A few I can show. Most client work stays under NDA.
Project 2
Act Flow
A marketplace for hiring people and AI agents, with task payments held in smart-contract escrow.
- Year
- 2025
- Stack
- Next.js · NestJS · ElizaOS · Solidity · Vercel
Project 3
Figment
An AI trading platform for configuring autonomous agents and monitoring their activity on-chain.
- Year
- 2025
- Stack
- React · Express · AI agents · DeFi · Vercel
Project 4
Pet Grooming SaaS Website
A marketing website with reusable Sanity content blocks the team can update without a developer.
- Year
- 2025
- Stack
- Next.js · React · Sanity · Tailwind CSS
Reviews
What clients say
★★★★★
“Great developer! would definitely recommend and will use his services again in the future when needed.”
★★★★★
“I recommend Bohdan, he does the work and is a solid developer. I'm closing the contract because we don't have any need for him at the moment, but I would rehire him.”
★★★★★
“High quality developer, a very nice guy and a responsible person 🔥 Strongly recommend him and looking forward to working again in the future. Thanks for your work 🤝”
Top Rated Plus · 100% Job Success · Verified on Upwork, as of Sept 2026.
Experience
Teams I've worked with
I've worked as part of product teams and directly with clients. I take ownership of features from understanding the problem through implementation and release, keeping the user experience and the underlying system connected. You can hire me for a defined project or ongoing development, working directly with you or alongside your team.
- Education
- BSc Software Engineering
- Taras Shevchenko National University of Kyiv · 2022 — 2026
- Languages
- Ukrainian · English
Confidential client
Oct 2025 — NowI work across a computer vision platform, from machine learning to web and mobile applications. Project details are confidential.
Python · Machine learning · React Native · PHP
Timeslice
Sep 2025 — NowI build features for LawOne, helping law firms manage matters, time, billing and documents. My work spans .NET APIs and Blazor interfaces.
.NET 8 · ASP.NET Core · Blazor WebAssembly · Telerik UI
Softcery
Jan — Jul 2025I built checkout and payment flows and merchant dashboards for an e-commerce product, working across the frontend and backend.
Go · React · TypeScript · Next.js · PostgreSQL
ACT Labs
2025I played a key role across the frontend and backend of two AI products: Act Flow, a marketplace for hiring agents, and Figment, an autonomous trading platform.
Next.js · NestJS · ElizaOS · Solidity · Vercel
OtterDev
2025I built marketing websites with content managed in Sanity, and a beta launch site for an AI shopping assistant.
Next.js · Sanity · Tailwind CSS · Framer Motion · Firebase
AcuPower
2024I added website features and improved technical SEO for an Acumatica business software consultancy.
.NET · ASP.NET MVC · SEO
Prosper AI
2024I built admin dashboards, client interfaces and security features for an AI product that helps estate agents prepare property sales prospectuses.
.NET · React · OpenAI API · Azure
Flurium
2023 — 2024I built web applications for clients, including e-commerce stores, content management systems and tools for automating business tasks.
.NET · React · Python · PostgreSQL
Jooble
2022 — 2023I joined after our team won a university hackathon and worked on job search and candidate matching.
.NET · Python · PostgreSQL
Stack
Tools I build with
Select a tool to see where I’ve used it and explore the related projects.
Built with Python
Built with FastAPI
Built with .NET
Built with ASP.NET Core
Built with NestJS
Built with Go
Built with PHP
Built with TypeScript
Built with Next.js
Built with Blazor
Built with Tailwind
Built with React Native
Built with Expo
Built with PostgreSQL
Built with SQL Server
Built with MySQL
Built with MongoDB
Built with Redis
Built with Docker
Built with Azure
Built with AI agents
Built with ElizaOS
Built with OpenAI API
Built with Solidity
backend
frontend
mobile
data
cloud
ai & web3
Contact
Let's talk about your product
Tell me what you're building, or book a 30-minute call to talk it through.