System Engineer for Legacy Application C/C++

Solid Company; Łódź; Hybrid; PLN 120,000 - 180,000; Full time

Job summary

Solid Company in Łódź, Poland is seeking a skilled C/C++ software engineer to design, develop and maintain microservices powering credit risk, recommendation, and credit scoring products.

You will join an Agile Scrum team, participate in the full software development lifecycle, collaborate with business analysts, and help translate complex requirements into robust APIs and calculation engines that work across multiple countries.

Qualifications

• Strong knowledge of C and C++
• Good debugging skills
• Understanding of mapping, code flow and XML
• Familiarity with unit, component, integration, and system testing concepts
• Knowledge of software design patterns, OO principles and SOLID
• Experience with Visual Studio
• Practical knowledge of packaging and .exe creation
• Experience using GitHub Copilot
• Excellent command of English (spoken and written)

Responsibilities

• Design, develop, and maintain C and C++ microservices for credit risk, recommendations, and scoring products
• Build robust APIs and calculation engines for cross-country compliance
• Develop solutions for complex business processes and integrations with credit authorities
• Participate in full software development lifecycle (requirements, design, coding, testing, deployment)
• Collaborate with business analysts to translate requirements into technical solutions
• Work within an Agile Scrum team environment

Skills

C programming

C++ programming

Debugging

Code flow & XML

Testing concepts

Design patterns & SOLID

Visual Studio

Package building & exe

GitHub Copilot

English proficiency

Tools

Visual Studio

GitHub Copilot

Job description

• Design, develop, and maintain C and C++ microservices supporting credit risk, recommendation, and credit scoring products


• Build robust APIs and calculation engines supporting compliance with credit scoring and recommendation regulations across multiple countries


• Develop solutions for complex business processes and integrations with credit authorities


• Participate in the full software development lifecycle, including requirements analysis, design, coding, testing, and deployment


• Collaborate with business analysts to translate business requirements into technical solutions


• Work within an Agile Scrum team environment

Kogo poszukujemy?

• Strong proficiency and in-depth knowledge of C and C++


• Strong debugging skills


• Good knowledge of mapping, code flow, and XML


• Understanding of unit, component, integration, and system testing concepts


• Knowledge of software design patterns, object-oriented programming principles, and SOLID principles


• Familiarity with Visual Studio


• Practical knowledge of package building and .exe file creation


• Experience using GitHub Copilot


• Very good command of English, both spoken and written

Nice to have:

• Domain knowledge of credit


• Experience in the banking or financial sector


• Basic knowledge of Finnish