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Welcome to Tessoft.net

We are a small team in Sofia, Bulgaria, built around twenty-five years of hands-on work in software. We have followed this field through every shift it has made, and we are still curious about the next one. Programming is a creative process to us, and the code should be a masterpiece, and beautiful too.

Start a project See our work

What we stand for

Clients

Our clients are our partners. They get straight answers, work done to a high standard, and someone who is still there after launch. Most of them come back with the next project.

Quality

In quality we believe. It saves our time and our partners' time. We plan stability, testing and maintenance before we write a line of code, because we have seen what happens when nobody does.

Effectiveness

Time is valuable, ours and yours. Years of practice mostly buys speed: we know which decisions matter early and which can wait. We measure our time in results, not in hours or days.

Curiosity

We learn something new every day, because we enjoy it. That is how twenty-year-old habits stay useful next to tools that shipped last week.

Results — the only factor that matters.

— Our Motto —

Our Work

We build mobile, web, server and AI solutions.

Apple Technologies

  • ◆iOS, iPadOS and macOS native applications
  • ◆In-app purchases and social integration
  • ◆Security: encryption, data protection, secure communication
  • ◆Full server synchronisation and push notifications
  • ◆Geolocation, multimedia and local databases
  • ◆Unit testing and App Store release management

Android

  • ◆Smartphone, tablet and wearable applications
  • ◆In-app purchases and social integration
  • ◆Security: encryption, data protection, secure communication
  • ◆Full server synchronisation and push notifications
  • ◆Geolocation, multimedia and local databases
  • ◆Unit testing and Play Store release management

AI

  • ◆LLM integration into existing products
  • ◆Retrieval-augmented search over your own data
  • ◆Chat assistants and support automation
  • ◆Document and image processing pipelines
  • ◆Model evaluation, guardrails and cost control
  • ◆On-device and self-hosted deployment

Server development

  • ◆Node.js, Python and PHP services
  • ◆PostgreSQL, MySQL and Redis
  • ◆REST and GraphQL APIs
  • ◆Authentication, payments and third-party integrations
  • ◆Automated testing and CI/CD pipelines
  • ◆Docker deployment on AWS and Hetzner
25+
Years of Experience

More than two decades of shipping  server, web and mobile projects, from desktop software through the mobile era to the AI tools.

The stack below is what that experience taught us to trust, and what we picked up because it looked interesting and useful.

Tech stack

Part of the tools we reach for, grouped by where they sit in a project.
The list keeps changing, which is the point.

Mobile

Swift SwiftUI Kotlin Dart Flutter

Web

TypeScript React Next.js Laravel WordPress

Server & data

Node.js Python PHP PostgreSQL Redis REST GraphQL

AI

OpenAI Claude LangChain Vector search

Practice

Git Docker CI/CD AWS Automated testing

Our Fun Facts

120+

Projects delivered across server, web and mobile platforms.

40+

Partners who came back to us with their next project.

25+

Years writing code we are still happy to open today.

Process

Five steps, every project, from first conversation to launch.

Research

Plan

Develop

Integration

Deliver

Creating masterpiece projects.

— Our Slogan —

Contact us

Tell us what you are building. We will come back with a plan, a timeline, and an honest opinion on whether we are the right people for it.

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