Crafting software for top-tier teams
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AT Software Agency
Your external technology partner for web, mobile, and desktop software. We build new products, take over existing ones, and add AI where it pays off, delivered fast and built to last.
Clean architecture, tested code, and attention to detail. Software built to run for years, not just to pass a demo.
Our own open source products have run on servers around the world for over a decade. We know what happens after launch.
Senior engineers using modern tooling, AI included, ship in weeks what usually takes months, without cutting corners.
You talk to the engineers doing the work. Clear updates, quick answers, no account managers in between.
Who We Are
AT Software Agency is a senior engineering team led by Alex Tselegidis. We work with startups, growing companies, and large organizations worldwide, as advisors, as an extension of an in-house team, or as the whole software department.
Unlike a typical agency, we also build, operate, and maintain our own products. Easy!Appointments, our open source booking platform, has been running in production since 2014 and is used by businesses around the world. We bring that experience to every client project.
Our Work
What We Do
Specialized in
How We Work Together
Your external technology team. Architecture, development, maintenance, and technical decisions on an ongoing basis, so your software keeps moving forward.
Reserved senior engineering time that works inside your team and your process, for companies that need more hands without hiring.
A clearly defined project, from discovery and architecture to launch, with optional maintenance afterwards.
Now with AI
AI is changing what software can do. We help you take advantage of it - by adding intelligent features to the products you already run, building new AI-powered applications, and connecting the models and tools that make your business faster and more competitive.
Augment the features you already have - smarter search, automation, summaries, and recommendations - without a risky rewrite.
From idea to production, we design and build AI-driven applications tailored to your workflows, your data, and your users.
We connect language models, APIs, and your existing systems into reliable, automated pipelines that save time every day.
Projects
That sounds like something worth building. Tell us about it and we will plan it with you.
Start a new projectA highly customizable appointment scheduling system that lets customers book online.
An online form builder for forms, surveys and quizzes. Describe it. Ship it.
Have an idea? Let us build it together, from first sketch to launch and beyond.
Why Choose Us
