Top Systems tech stack
Top Systems builds mostly with C#, Python, C++. Its stack also includes .NET, Linux, PostgreSQL, MS SQL. C# is named in 4 of the 5 job postings Top Systems published in the last 12 months (80%). Counted by Alion from the job postings of Top Systems, updated Oct 13, 2026.
What programming languages does Top Systems use?
C# is named in 80% of job postings at Top Systems, followed by Python (40%), C++ (20%).
C# 
What frameworks and libraries does Top Systems use?
Qt is named in 20% of job postings at Top Systems, followed by STL (20%).
What databases does Top Systems use?
PostgreSQL is named in 40% of job postings at Top Systems, followed by MS SQL (40%).
PostgreSQL
2 40%
MS SQL
2 40%
What cloud and platforms does Top Systems use?
.NET is named in 40% of job postings at Top Systems, followed by Linux (40%), GitHub (20%).
What developer tools does Top Systems use?
SolidWorks is named in 40% of job postings at Top Systems.
SolidWorks
2 40%
Which engineering practices does Top Systems ask for?
MVVM is named in 40% of job postings at Top Systems.
MVVM
2 40%
What does each Top Systems team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
3 postingsHow does your stack fit Top Systems?
How modern is the Top Systems stack?
Top Systems scores 80 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the Top Systems stack in its industry?
Share of the 180 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Top Systems
Questions about the Top Systems tech stack
What programming languages does Top Systems use?
The languages named in Top Systems job postings are C# (80%), Python (40%), C++ (20%), as a share of the 5 postings of the last 12 months.
Does Top Systems use .NET?
Yes. .NET is named in 2 of 5 job postings (40%) and required in 2 of them.
What cloud and platforms does Top Systems use?
The cloud and platforms named in Top Systems job postings are .NET (2), Linux (2), GitHub (1) (postings in brackets).
What skills do you need for a Backend job at Top Systems?
Backend postings at Top Systems most often require .NET (2), C# (2), out of 3 postings in the last 12 months.
Is the Top Systems tech stack changing?
No new technology has appeared in Top Systems job postings in the last six months.
How modern is the Top Systems tech stack?
Top Systems scores 80 out of 100 (Cutting-edge). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the Top Systems tech stack?
Alion reads every job posting Top Systems publishes and tags the technologies each one names. The figures on this page count the 5 postings of the last 12 months and were updated on Oct 13, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Top Systems tech stack: 12 technologies from 5 job postings", as of Oct 13, 2026. https://alion.io/company/tflex/technologies