ALTEN
Senior C++ Software Developer
Skills
12 days ago
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Important information
Contract type:
Permanent
Location:
Kraków, Poland
Work mode:
Onsite
Published on:
14 October 2026
What they need
WHO WE ARE?
WE ARE A GLOBAL LEADER IN ENGINEERING AND IT SERVICES .
At ALTEN, we see our specialists as architects—designers of tomorrow’s world .
As a leader in engineering and IT services, we support companies in their technological and sustainable transformation .
OVER 57,400 EMPLOYEES IN 30+ COUNTRIES , SUPPORTING MORE THAN 6,500 CLIENTS WORLDWIDE .
We operate across all industries, including:
Aerospace, Defense, Naval, Security, Automotive, Rail & Mobility, Energy & Environment, Life Sciences & Health, Industrial Equipment & Electronics, Telecommunications, Banking, Finance & Insurance, Retail, Media & Services, Public Administration, and Government Sector.
We deliver complex and highly advanced technical projects at every stage of the value chain for the world’s most prestigious companies.
Our motto: Building Tomorrow’s World Today!
For more information, visit : http://www.altenpolska.pl
We're hiring Senior C++ Software Developer!
WHAT WILL YOUR CHALLENGES BE?
- Development of existing software and implementation of new functionalities in C++17/20
- Design and development of real-time components , including multithreading, synchronization, and I/O communication
- System performance analysis and optimization, with a focus on latency reduction, memory usage optimization, and resolving issues related to concurrent execution
- Modernization and refactoring of existing code, as well as participation in designing the architecture of new functionalities
- Creation of unit and integration tests , conducting code reviews , and ensuring the quality and stability of the solution
- Development and maintenance of software running on Linux and Windows , including working with application build processes
- Analysis of technical issues and troubleshooting defects within the developed system
- Collaboration with R&D , Product , and other technical teams in requirements analysis and solution design
WHAT DO WE REQUIRE?
- Minimum 8 years of software development experience , including advanced commercial experience with C++
- Strong knowledge of C++17/20 , including STL , memory management, smart pointers, RAII , and experience developing large-scale systems and applications
- Experience with real-time systems and multithreading , i.e., applications performing multiple operations concurrently where responsiveness, synchronization, and system stability are critical
- Experience in performance optimization , including analyzing application bottlenecks, memory consumption, and latency issues, as well as implementing improvements to enhance system performance
- Practical experience with Linux and Windows , as well as CMake or similar tools used for building C++ applications
- Experience with unit testing , integration testing , code reviews , and working with existing codebases maintained by larger development teams
- English proficiency at B2 level or higher , enabling effective day-to-day communication within an international R&D team
NICE TO HAVE
- Experience in the energy sector or industrial automation , particularly with SCADA , RTU , IED , or power grid monitoring and control systems, is considered a strong advantage
- Knowledge of industrial communication protocols such as IEC 61850 , IEC 60870-5-104 , DNP3 , OPC UA , or IEEE C37.118 will be an additional asset
- Experience with Docker and Kubernetes will be considered an advantage
WHAT CAN WE OFFER YOU?
ALTEN’s DNA combines human values, a culture of excellence, and experience in serving our clients . We offer an individual approach to each employee, emphasizing work-life balance . We focus on responsible, sustainable development and eco-friendly solutions .
We offer:
- A full-time employment contract .
- Location: Kraków ; work model: hybrid
- Stable and long-term cooperation .
- A clearly defined career path with a European leader in engineering and IT consulting.
- The possibility of relocation within ALTEN Poland’s local branches .
- After project completion, the opportunity to engage in another project within the company .
- Onboarding and collaboration with a dedicated Competences Manager .
Benefits:
- Medicover healthcare .
- Medicover dental care .
- Medicover Benefits platform .
- Medicover sports card .
- Newborn welcome package for employees.
- Group life insurance .
- Pension program .
We also offer cooperation based on B2B or contract (UZ) .
We guarantee:
- Access to professional certifications with our technology partners (e.g., Google, ISTQB).
- Access to industry events .
- Access to the Knowledge Sharing Program .
Join our team and create the future of technology with us today!
NOTE: We will contact selected candidates only.
By clicking "Send," you agree to the processing of your personal data by Alten Polska sp. z o.o. based in Warsaw for recruitment purposes for the position indicated in the advertisement.
You can withdraw your consent at any time by contacting us at ALTEN_PL_[email protected] , which means the recruitment process will end, and your candidacy will not be considered for future recruitments.
For full information on the processing of your personal data, visit https://docs.altenpolska.pl/do\_pobrania/Klauzula\_informacyjna\_dla\_potencjalnych\_pracownikow.pdf
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