Code written by people
Softwaremade by handfor companies that would rather sleep at night.
We are three partners — two engineers and a lawyer — building reliable applications for small and medium businesses. No shortcuts, no AI-generated code and no fine print.
We work with small and medium businesses in Spain and Poland.
Who we are
Three partners, one way of working
Tharsys Tech brings together a telecommunications engineer, a mechanical engineer and a lawyer. That mix lets us understand a problem from day one: how it works underneath, how it is used every morning, and what the law requires.
- 01
Experience in critical systems
We come from environments where a failure is not an inconvenience: air traffic control and energy infrastructure.
- 02
Compliance by design
The legal side is not bolted on at the end. It sits at the table from the very first product decision.
- 03
Small-business pricing, enterprise standards
Our size lets us adjust the price without lowering the bar on quality.
How we work
Three commitments we do not negotiate
These are not slogans: they are the rules we use to decide what we take on and how we deliver it.
Every line written by a person
We recognise the value of artificial intelligence as a tool in other contexts, but we do not use it to program. Our code is written, reviewed and understood by someone on the team.
Reliability before speed
We would rather deliver a week later and have it work than arrive early and fix it in production. Critical systems taught us that this is the only maths that adds up.
We speak plainly
No jargon, no proposals that are impossible to compare. We explain what we do, what it costs and how long it takes, in words that make sense.
The difference
Generating code is not the same as building software
More and more companies ship applications largely written by an artificial intelligence. It works until it stops working. Here is the practical difference for whoever signs the contract.
AI-generated development
- It ships fast, but nobody on the team knows the detail of what was shipped.
- When an odd bug shows up, the search starts from scratch.
- Duplicated chunks of code pile up that nobody dares to touch.
- Decisions about personal data are made with no legal criteria.
Development at Tharsys Tech
- We deliver at a sustainable pace and explain every decision.
- Whoever wrote the code is still around when it needs fixing.
- We keep the application small and tidy so growing stays cheap.
- Data handling is reviewed with our partner lawyer.
Our product
OnTempo
The application where your team clocks in, you keep track of absences, and an inspection finds everything in order.
- 01
Secure time tracking
Every entry is stored so that it cannot be altered without leaving a trace.
- 02
Audit trails
Check who changed what and when, then download the report ready to submit.
- 03
Absence management
Holidays, sick leave and time off in a single calendar everyone understands.
The team
Behind the code there are names and faces
You know who you are talking to and who answers when something breaks. There are three of us, and that is an advantage.



Shall we talk about what your company needs?
Tell us what is taking more of your time than it should. We will come back with an idea of how to solve it, no strings attached.