TSS
AI Consulting & Integration · Custom Software Development
Facts
as of Nov 13, 2026TSS (Trusted Software Services) is a software development company based in Warsaw, Poland. It builds custom software and provides IT services for business clients, with a focus on financial technology, big data and AI projects. Its openings include Java and Python big data developers, DevOps engineers, business and systems analysts and manual and automation testers.
- Legal name
- Trusted Software Services sp. z o.o.
- Headquarters
- Warsaw, Poland
- Founded
- 2017
- Employees
- 51-200estimated range
- Register numbers
- KRS 0000797269 · NIP 5272900950
- Website
- tss.black
These are the key facts about TSS on Alion as of Nov 13, 2026. TSS is headquartered in Warsaw, Poland. It was founded in 2017.
Sources: company registers, GLEIF, Wikidata, the company's site, Alion job postingsReport a mistake
What the registers and the postings say about this employer.
Legal entity active
Trusted Software Services sp. z o.o.
Not checked
Sanctions lists
OFAC SDN, EU consolidated
No match
Phishing reports
OpenPhish, Phishing.Database
None
Layoff notices
US WARN notices on file
None
Full employer checkScam signs in adverts, mail records, visa registers, domain history
Sources: company registers, the Alion truth index, OFAC and EU sanctions lists, US WARN notices
Footprint
Hiring in 1 city in 1 country.
1Cities
1Countries
| Site | Type | Open roles | Hires most for | Engineering |
|---|---|---|---|---|
| Warsaw Poland | Headquarters | 0 |
Source: office addresses in postings and company registers
Tech stack
Full chapter →Technologies named in job postings at TSS over the last 12 months, by layer, with the share of postings for each.
84Technologies in use
14Postings analysed
66/100Stack modernity
LanguagesSQL 36%Java 29%C# 14%JavaScript 14%
Frameworks & librariesFlink 14%Hadoop 14%JUnit 14%Redux 14%
DatabasesHBase 14%MS SQL 7%PostgreSQL 7%
Cloud & platformsAzure 21%GitLab 21%GitLab CI 21%Linux 21%
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Full TSS tech stack84 technologies · by team · pay by technology · changes · similar stacks
Source: the technologies named in the company's postings and on its site
Newsroom
top 40%Web presenceof 133.2M domains by links, Common Crawl
Sources: the outlets named on each headline, each story once