1. Problem
Requirements elicitation and analysis
Agreed requirements and acceptance criteria
Skip to the approachBefore agentic development Built on AI Built for AI Built in collaboration with AI
Lev Berezhnoy · Fractional CTO & Product Engineer
From business challenge to a product people use.
I help you decide what to build, then build it with your team.
2. Solution
Solution design and development
Implemented solution
3. Outcome
Deployment and handover
Ready for use
User scenarios validatedCode and documentation handed overUsers trainedSupport arrangements agreed
Ready for everyday use
Companies I’ve worked with
Selected projects
All projectsGMS / MYRTEX
SaaS grant management platform
Helps teams run grant programs: collect applications, arrange expert reviews, make funding decisions and evaluate how effectively the grants are used
- My contribution
- Co-founded the company, built the team, established development processes and led product development as CTO
DeMINT
Analyzes speech after online meetings and gives English learners feedback tailored to their language level
- My contribution
- Developed the system with a team while studying for my master’s in Artificial Intelligence at the University of Alicante · co-author of the NLP4CALL 2024 paper
Claude-Codex Skills
A library of Claude Code skills for AI agents, from discovery to development and quality assurance
- My contribution
- Created the library and made its source code public
Prompsit API
A unified API for text and document translation, translation quality assessment and language data processing
- My contribution
- API development and testing with the help of AI agents
Published evidence
Agentic development, measured
These are results from other teams. I share them as context for working with agents; they don’t predict the outcome of your project.
League
−50%
Shorter development cycle
From idea to pull request at League. Reported by the company.
Anthropic customer story · ENMicrosoft
+24%
More merged pull requests
Estimated increase following the adoption of CLI coding agents at Microsoft.
Microsoft preprint · 2026 · ENWorking together: practical questions
Where do we start?
With a one- to two-week discovery phase: I study the problem and your workflows, then propose solution options with time and cost estimates. You decide whether to continue, and the materials stay with you.
What can I help you with?
I help you decide what to build, launch a new product or develop an existing one. I design and build web applications, APIs and integrations, including AI features. I can lead a whole project or own an agreed part of the work alongside your team.
How do we define the scope and the outcome?
We explore the problem, your company’s workflows and users’ needs. We check whether custom development is needed and choose a solution that fits the constraints. We agree on scope, stages and success criteria, then estimate time and cost.
How do we work together?
I learn how your company works and collaborate directly with users and your team. We define the problem together, and I build and deploy the solution in your environment. We use feedback to check whether the product helps people do their work and decide what to do next.
How do I use AI?
I use AI agents in development and remain responsible for engineering decisions and reviewing changes. I can also integrate AI into the product when it helps solve the problem. I check requirements and affected scenarios, and state which checks I could not complete.
What happens after launch?
We can keep developing the product: gathering feedback, choosing the next priorities and shipping changes. Or I can hand it over to your team. We agree on documentation, training, support and the scope of my responsibility in advance.
Working directly together
Your technical partner
I help you choose a solution, build the product and put it into use alongside your team. I can join for a specific project or work with you on continued product development after launch.
Let’s discuss your problem, constraints and the result you need. We’ll decide where to start together.
Discuss your project