System Engineer C/C++ Łódź B2B 1 000 – 1 200 PLN/day

Jit; Łódź; Hybrid; PLN 120,000 - 210,000; Full time

Benefits offered by this job

Flexible work organization

International work environment

Scandinavian culture

Community integration meetings

Job summary

Jit Team in Łódź is seeking a skilled C/C++ developer to join a hybrid team working on credit risk and scoring solutions for multiple European markets. You will design, develop, and maintain microservices, APIs, and calculation engines within an Agile Scrum environment.

You will collaborate with analysts on requirements, write unit and integration tests, and ensure code quality and performance. The role offers Scandinavian culture, work-life balance, and ongoing training funded by Jit.

Qualifications

• Strong commercial experience with C and C++
• Good understanding of XML, mapping, and code flow analysis
• Knowledge of unit, integration, and system testing
• Understanding of OOP, SOLID principles, and design patterns
• Experience with Visual Studio
• Experience in package building and executable (.exe) creation
• Familiarity with GitHub Copilot

Responsibilities

• Develop and maintain C/C++ applications and microservices.
• Build APIs and calculation engines for credit scoring solutions.
• Integrate systems with external credit authorities.
• Analyze, debug, and resolve technical issues.
• Collaborate with Business Analysts on requirements and solution design.
• Write and execute unit and integration tests.
• Participate in code reviews and Agile Scrum ceremonies.
• Ensure code quality, performance, and maintainability.

Skills

C/C++

XML

Unit Testing

REST APIs

OOP

SOLID principles

Design patterns

Visual Studio

Git

GitHub Copilot

Tools

Visual Studio

Job description

Work model: hybrid from Łódź (2/3 days per week from the office)

Why choose this offer?

• You can expect a flexible work organization
• The international work environment will give you the opportunity to interact with the English language on a daily basis
• Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit)
• The Jit community will bring you a nice time during regular integration meetings

Project

You will be involved in a financial project focused on developing and maintaining credit risk, credit scoring, and recommendation solutions used across multiple European markets. The platform supports critical decision-making processes within the banking and financial sector, ensuring compliance with local regulations and integrating with external credit authorities.

Working as part of an Agile Scrum team, you will design, develop, and maintain C/C++ microservices, APIs, and calculation engines that process complex business rules and financial data. You will participate in the full software development lifecycle, from requirements analysis and solution design through implementation, testing, deployment, and ongoing enhancements.

Responsibilities you’ll have

• Develop and maintain C/C++ applications and microservices.
• Build APIs and calculation engines for credit scoring solutions.
• Integrate systems with external credit authorities.
• Analyze, debug, and resolve technical issues.
• Collaborate with Business Analysts on requirements and solution design.
• Write and execute unit and integration tests.
• Participate in code reviews and Agile Scrum ceremonies.
• Ensure code quality, performance, and maintainability.

Expected competences and knowledge

• Strong commercial experience with C and C++
• Strong debugging and troubleshooting skills
• Good understanding ofXML, mapping, and code flow analysis
• Knowledge of unit, integration, and system testing
• Understanding ofOOP, SOLID principles, and design patterns
• Experience withVisual Studio
• Experience in package building and executable (.exe) creation
• Familiarity withGitHub Copilot

Technologies you’ll work with

• C++
• C
• XML
• Visual Studio
• REST APIs
• Microservices
• Git
• Unit & Integration Testing
• Object-Oriented Programming (OOP)
• Agile Scrum
• Credit Scoring & Risk Systems (domain-related)

Client – why choose this particular client from the Jit portfolio?

Jit Team has had an over-decade-long relationship with the leading financial group in the Nordic countries, and we are privileged to be our client’s premier partner in Poland. At present, over 200 Jit personnel are engaged in the completion of more than 60 projects for this Norwegian major provider of financial services with a global presence and a strong focus on modern technology. Our customer’s work atmosphere is epitomized by the Scandinavian culture, which is conducive to people who place emphasis on work-life balance and feedback culture. Furthermore, all projects are executed in international teams, giving constant exposure to the English language.

About Jit Team

The Human Factor of IT – it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.

Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.

Here’s how we get from first “hello”
to “welcome aboard”

You’ll meet with our HR team to discuss your experience, approach to software development, and teamwork. We’ll also verify your English language proficiency as part of the conversation. Then, you’ll take part in atechnical interview focused on your skills and problem-solving mindset.

We believe agreat workplace is more than aset of benefits. It’s about trust, long-term relationships, and an environment where people can do their best work.

Share and gain experience. Jit Academy is aplatform serving amutual knowledge exchange. Lecture others and share your expertise or join the audience.

Jit Communities

Join the group of experts. We ensure constant growth, that’s why we keep building communities dedicated to mutual education.

Growth support

We value people who are looking to develop their skillset. We proudly finance avariety of courses and certifications so that you can gain new competencies.

Jit Summer Office

Gain access to the office located at the very beach in Chałupy. Jit Trailer awaits visits of the team members and their families.

Jit Boats

Cruise the bay thanks to the motorboat awaiting at the Yacht Park in Gdynia. Furthermore, there is afleet of jet skis and kites located at the beach in Chałupy.

Would you recommend any IT specialist we could hire? Share the contact and gain abonus if we hire them.

Start the day without haste.
At Jit, we begin and finish the day of work within acertain time frame, in stead of fixed hours.

Bonuses for content creators

We provide bonuses to those willing to participate in industry events as public speakers, and to content creators writing articles for our blog.

Mental health support

Mental health is fundamental. Take advantage of psychologists and psychotherapists’ support and reach for psychoeducational content on the wellbeing platform

We provide our teams with high-quality gear necessary to work. Choose between MacOs or Windows and work the way you prefer.

Teambuilding events

Meet new, interesting people. We’re dedicated to building human relations and often host informal events that bound our team members.

Classes conducted for small groups, lectured
by our teachers, guarantee rapid results.

Take care of your wellbeing. Members of Jit Team, gain access to awide range of medical plans provided by Medicover or PZU.

We provide Multisport and Medicover Sport gym cards so that you can improve your physical condition.

Life insurance

Increase your safety. No matter the form of employment, we provide life insurance plans to our colleagues.

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