T-01
Restaurant chains
One system for menus, table reservations, staff schedules and reports. Staff update menus themselves — 100+ hours of manual work saved every month.
04 / About
From idea to a live product — one accountable partner
DevsService is the studio of Dmitrii Troshchenkov, an independent B2B contractor. I take business software through the whole journey: from the first conversation to a working product on the web, and beyond.
Most problems that software can solve do not start as technical problems. They start as a process that takes too long, information scattered across five places, or a report nobody trusts. Understanding that side is half the work.
Before software, I spent more than ten years as an engineer in industry, running equipment and teams and working between management, staff and contractors. I know how a business looks from the inside — and what people on the ground actually need from their tools.
You do not need to know anything about programming to work with me. You bring the business problem; I handle everything technical and explain decisions in plain language.
01 / Full cycle
Everything from idea to a product that is live on the web
No need to hire a designer, a developer and a hosting company separately. One partner covers every
step and stays responsible for the result.
- 01 / Idea
We talk through the problem, the people involved and what a good result looks like.
- 02 / Plan
You get a clear scope, a timeline and a cost estimate you can check — before work starts.
- 03 / Design
Screens and workflows are sketched and agreed with you, so there are no surprises later.
- 04 / Build
A working version arrives every week. You see progress and can change priorities early.
- 05 / Launch
The product goes live on the web: hosting, domain, security and backups included.
- 06 / Support
Fixes, improvements and new features after launch — or a clean hand-over to your team.
02 / Track record
5+ years of building software for real businesses
Client projects across industries plus products of my own. Client names stay confidential.
T-02
Construction companies
Site data and paperwork in one place, with reports for clients and authorities produced automatically instead of in spreadsheets.
T-03
AI in real businesses
AI that reads documents, answers staff questions and fills in records — connected to the company’s own data, checked before it saves anything.
T-04
Own products
Several products of my own taken from idea to launch and run in production — the same full cycle I offer to clients.
03 / Method
Built with AI — faster and more affordable, with no drop in quality
AI is not only something I add to your product. It is also how I build it: AI assistants do the
routine programming, while an experienced engineer makes the decisions and checks the result.
- 01
Faster
AI assistants take over routine programming, so you see a working version in days rather than weeks.
- 02
More affordable
Less time on routine means fewer paid hours. You pay for solving your problem, not for repetitive work.
- 03
Same quality
An experienced engineer designs the solution and checks every change before it reaches you.
04 / Technology
Technology you will not have to worry about
Below is the core of what I use most often — not the full list. Every project gets the tools that suit
it, chosen by four rules.
Modern
Built with today’s industry-standard tools, not technology that is on its way out.
Grows with you
Starts small for one team and scales to thousands of users without starting over.
Easy to maintain
Changes stay quick and safe years later, so the software keeps paying off.
Not locked in
Popular, well-documented tools — any good developer can continue the work if you ever need it.
- Fast, easy-to-use websites and web apps
- Work on any device, load quickly and are accessible to every user.
- React · Next.js · Astro · Tailwind CSS
- Reliable business logic
- The part that handles orders, documents, calculations and integrations.
- Node.js · NestJS · Python · FastAPI
- Safe storage for your data
- Proven databases trusted by banks and large companies.
- PostgreSQL · pgvector · Prisma
- AI built into your processes
- Works with several AI providers, so you are never dependent on just one.
- OpenAI · Anthropic · Google Gemini · LangGraph
- Secure hosting and smooth updates
- Global, protected hosting; new versions go live without downtime.
- Cloudflare · AWS · Docker · GitHub Actions
- Fewer bugs
- Automatic checks catch mistakes before your users ever see them.
- TypeScript · Vitest · Playwright
Next step
Tell me about your idea
Describe the task in a few lines and attach any files — or book a 30-minute call to talk it through.