C Developer

NOEXP; Warszawa; Hybrid; PLN 60,000 - 90,000; Full time

Job summary

TST Group in Warsaw, Poland is hiring a Junior C Developer to join a hybrid team. You will work on full‑stack C projects, participate in design, coding, testing, and debugging tasks, and contribute to payroll and corporate software solutions.

The role emphasizes ownership and hands‑on problem solving within a dynamic IT unit. Ideal candidates hold a CS-related degree and have fundamentals in data structures, algorithms, multithreading, and IPC/socket programming.

Qualifications

• Bachelor's degree in computer science, mathematics, or related field.
• Strong knowledge of data structures and algorithms.
• Experience with multithreading and IPC/socket programming.
• Familiarity with XML and relational databases.
• Experience with C/C++ and OO design principles.

Responsibilities

• Create programmes and apps for a business unit using the C programming language.
• Test, debug and repair programmes on the C platform.
• Design, develop, test, implement and code solutions in C and related tech (SQL, NET).
• Review, analyse and evaluate programmes, procedures and requirements for personal C applications.
• Develop integrated payroll and corporate software solutions on SQL/Oracle and other C applications.
• Inform team members and documentation about design and implementation decisions.
• Produce test plans and documentation using a variety of tools (NET, C).
• Utilize VBA and C to modify code and fix bugs.
• Provide system support analysis to understand code quickly.
• Complete projects on schedule and within budget.

Skills

Boost

STL

Data structures

Algorithms

IPC (socket)

Multithreading

XML

Relational databases

Object-Oriented Design

C/C++

Education

Bachelor's degree in CS or related

Job description

# C Developer**Workplace:** Warsaw**Agreement type:** B2B contract**Working time:** full-time**Working Mode:** hybrid**Specialization:** fullstack**Category:** IT**Level:** Junior**Reference number:** **publication date:** 2026-08-29Technology and language:CSQLRole: C DeveloperLocation: Warsaw/ KrakowContract: B2B ContractHybrid or Remote or Onsite: Hybrid 2-3 days officeResponsibilities* Create programmes and apps for a business unit using thenet C programming language* Use the C platform to test debug and repair programmes* Design develop test implement and code solutions in C programming languages such as Unix SQL and NET* Review analyse and evaluate programmes procedures and requirements for personal C applications* Develop integrated payroll corporate software solutions on SQL Oracle and other C applications* Inform team members and the documentation department about design and implementation decisions* Complete suitable test plans and documentation utilising a variety of programmes such as NET 20 and C* Use VBA code and a C programme to make changes and repair bugs* Perform system support analysis to evaluate and comprehend code quickly* Complete projects on schedule and within budget constraints* C Developer Requirements Skills* Thorough understanding of BOOST and STL* Solid knowledge of data structures and algorithms* IPC experience including socket programming* Knowledge of multithreading including race situations deadlocks and troubleshooting* Understanding of XML and relational databases* A bachelors degree in computer science mathematics or a related discipline* Knowledge of ObjectOriented Analysis and Design* Strong problemsolving abilities* Used to work as an individual with a good sense of ownershipLog in to apply and to save your application history**or****Share the offer:**FacebookXLinkedIn**Company name:**TST Group**TIN number/VAT UE:****Website:**https://tstinfotech.com/**Seat address:**Hoża 86/410 Warsaw, Poland