Application developer · product builder

Apps, websites
& the features
behind them.

Relocation planning, shared staff schedules and complex game builds. I turn practical problems into clear interfaces and working systems.

  • UX/UI & product design
  • Full-stack development
  • AI-assisted development
  • Vue
  • TypeScript
  • Nuxt
  • C#
  • .NET
  • Java
  • Spring Boot
  • Supabase
  • PostgreSQL
  • Cloudflare
  • Google Cloud
  • Python
  • OpenAI
Design meets build
Thoughtfully shaped.Built to be used.

Selected projects / 02

Selected work

Two products, shaped around real decisions. Explore the problem, the choices and the working result.

01 / OlehAIMobile UX prototype

A clearer path through life in Israel

Your next step, in one clear plan.

My contribution: product model, UX/UI journey and AI-assisted interactive prototype.

DirectionA guide through the first five years in Israel, with everyday help after them.

DemoOne fictional student journey: priorities, bank comparison and visit preparation.

View case study

Fictional examples · English prototype

No personal information is needed.

02 / SidurWindows application · v2.3.5

Paid project · Ongoing paid support

Used by multiple people for real work.

A clearer week for the whole team.

My contribution: product requirements, UX/UI, AI-assisted implementation, testing and delivery.

WorkflowA shared schedule for kindergarten teams: shifts, staffing checks, hours and estimated pay.

DeliveryA Windows app with accounts, access roles, cloud sync, printing and Excel export.

View case study
Sidur weekly schedule showing staff groups, shift times and total hours View full-size schedule

Other work

Mistfall Atlas homepage with navigation to its build tools and game reference

Live web application

Mistfall Atlas

I brought reverse engineering, formula derivation and a relational game database together in a live application for equipment search and build calculations.

What I can build

From first screen to working software.

Websites, applications and the systems that make them work. I shape the interface and connect the parts around a clear user task.

The tools below are my preferred starting points for AI-assisted implementation. I adapt the stack to your requirements and existing systems.

01

Landing pages & websites

Pages that explain the offer, guide attention, and make the next action easy to understand.

Page structure & technologies
  • Clear structure. The offer, page order and main visitor action.
  • Reviewable pages. Readable layouts, usable forms and launch notes.
Build
Vue & TypeScript
Hosting
Cloudflare

To start: your audience, the action you want visitors to take, and any existing copy or brand assets.

02

Web & desktop applications

Useful tools, dashboards, and product flows for people who need to get something done.

Workflow & technologies
  • One focused workflow. The screens, actions and interface states needed to finish a useful task.
  • A reviewable build. The agreed interactions and a clear list of what needs validation next.
Web apps
Vue & TypeScript
Windows apps
C#, .NET & WPF

To start: show me the current process, who uses it and where it becomes difficult.

03

Features, backend & APIs

User accounts, sign-in, permissions, data storage and connections to other services.

Feature scope & technologies
  • A defined feature. Expected behavior, data and its place in the existing product.
  • A connection plan. Available documentation, validation and error states to review before release.
Simple backends
Nuxt & TypeScript
Complex backends
Java & Spring Boot
Data & accounts
Supabase & PostgreSQL
Connections
REST APIs
Deployment
Cloudflare & Google Cloud

To start: the current app, available service documentation, and an example of the result you need.

04

Automations & AI integrations

Connections between tools, with AI where it can help a specific task.

Automation & technologies
  • A mapped process. The trigger, information flow, connected tools and expected result.
  • Review points. Human checks where needed, plus a plan for duplicates and failures.
Workflows
TypeScript or Python & REST APIs
AI services
OpenAI or Anthropic APIs, where useful

To start: your tools, an example input and output, and which decisions must stay with a person.

Andrei Tiumentsev About Andrei
Andrei TiumentsevApplication developer · Tel Aviv

The person behind the work

Hi, I’m Andrei.

Based in Tel Aviv, I design and build practical digital products — from a workplace scheduling application to a mobile relocation prototype.

My work connects product decisions with the details that make software usable: data, authentication, error states and delivery. I use Codex and Claude for implementation, define the behavior, review the result and test the flow.

I study Digital Marketing at Ariel University (2024–2027). It keeps audience and business goals in view.

Russian

Native

English

Working proficiency

Hebrew

Comfortable reading and writing; basic speaking

Projects, roles & collaborations

Let’s talk about a useful next step.

For a project, team role or collaboration, email me with the context and timing.