C/C++ Software Engineer with Payments

FIS; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A financial services technology company in London is seeking a software engineer to design and develop high-performance applications. The ideal candidate will be proficient in C/C++ programming, familiar with cloud platforms, and experienced in agile methodologies. This role offers competitive compensation and abundant career development opportunities.

Benefits

Competitive salary

Professional education and development

International work environment

Qualifications

• Proficiency in modern programming languages and frameworks.
• Strong understanding of software development life cycles.
• Experience with enterprise-grade systems and microservices.

Responsibilities

• Designing and developing robust, scalable program logic for new applications.
• Writing clean, efficient, and well-documented code.
• Debugging, testing, and deploying software components.

Skills

C/C++ programming

UNIX environments

business logic modelling

Agile methodologies

CI/CD

RESTful APIs

cloud platforms (AWS, Azure, GCP)

containerization (Docker, Kubernetes)

Education

Bachelor’s degree in computer science, Information Systems, or equivalent practical experience

Job description

Are you curious, motivated, and forward-thinking? At FIS you’ll have the opportunity to work on some of the most challenging and relevant issues in financial services and technology. Our talented people empower us, and we believe in being part of a team that is open, collaborative, entrepreneurial, passionate and above all fun.

About the team:

You’ll join a dynamic, cross-functional team of engineers, analysts, and product experts focused on delivering high-performance financial solutions. Our teams operate in agile environments, embracing DevOps practices, continuous integration, and cloud-native architectures to accelerate delivery and maximize impact.

What you will be doing

• Designing and developing robust, scalable program logic for new applications and enhancing existing systems.
• Writing clean, efficient, and well-documented code using modern programming languages and frameworks.
• Debugging, testing, and deploying software components across development, staging, and production environments.
• Integrating APIs, third-party services, and internal modules to ensure seamless functionality.
• Collaborating with QA, DevOps, and product teams to ensure high-quality releases and continuous improvement.
• Participating in code reviews, sprint planning, and architectural discussions.

What you bring:

• Proficiency in C/C++ programming, UNIX environments and business logic modelling.
• Strong understanding of modern software development life cycles (Agile, Scrum, CI/CD).
• Experience with enterprise-grade systems, microservices, and RESTful APIs.
• Familiarity with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
• Bachelor’s degree in computer science, Information Systems, or equivalent practical experience.

What we offer you:

• A multifaceted job with a high degree of responsibility and a broad spectrum of opportunities
• A modern, international work environment and a dedicated and motivated team
• A broad range of professional education and personal development possibilities – FIS is your final career step!
• A competitive salary and benefits
• A variety of career development tools, resources and opportunities
• The chance to work on some of the most challenging, relevant issues in financial services & technology

Privacy Statement

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Sourcing Model

Recruitment at FIS works primarily on a direct sourcing model; a relatively small portion of our hiring is through recruitment agencies. FIS does not accept resumes from recruitment agencies which are not on the preferred supplier list and is not responsible for any related fees for resumes submitted to job postings, our employees, or any other part of our company.

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