C# Developer - BELFAST- (Java or Python)

Synechron; Belfast City District; Hybrid; GBP 45,000 - 65,000; Full time

Benefits offered by this job

Job summary

Synechron is seeking a hands-on C# Developer to join our Belfast-based development team, delivering enterprise-grade applications for a leading global bank. You will design, develop and maintain web apps using C# and the .NET framework/core, and optimise SQL Server databases.

You’ll work with Git, CI/CD pipelines and NUnit testing within an Agile environment, collaborating with QA, UI/UX, and product management. This is a permanent role with three days per week from the Belfast office.

Qualifications

• Proven experience with C# and .NET Framework/Core.
• Strong SQL Server experience with design and optimisation.
• Proficiency with Git version control and branching strategies.
• Hands-on CI/CD experience (TeamCity preferred; Jenkins/Azure DevOps a plus).
• Experience with NUnit and unit testing.
• Familiar with performance testing and profiling tools.
• Understanding deployment processes and environments.
• Excellent problem-solving and communication skills.
• Ability to work in an Agile team.

Responsibilities

• Design, develop, and maintain web applications using C# and .NET.
• Develop and optimise SQL Server databases, queries, and stored procedures.
• Manage source code using Git and collaborate via branching strategies.
• Implement and maintain CI/CD pipelines using TeamCity (or equivalent).
• Deploy applications to various environments with efficiency and accuracy.
• Write comprehensive unit tests using NUnit or similar frameworks.
• Conduct performance testing to ensure scalability and robustness.
• Collaborate with QA, UI/UX, and product management across the lifecycle.
• Troubleshoot and resolve performance bottlenecks and bugs.

Job description

Synechron is looking for an experienced C# Developer, with knowledge/understanding of .Net Framwork/Net Core to join our development team working for a leading global bank. We are specifically looking for hands‑on experience with version control systems, CI/CD pipelines, and testing frameworks. The ideal candidate will be adaptable linguistically, comfortable working primarily within the .NET Framework but open to leveraging Java, Python, or other technologies as needed.

Key Responsibilities:

• Design, develop, and maintain web applications using C#
• Develop and optimise SQL Server databases, queries, and stored procedures
• Manage source code using Git and collaborate via branching and merging strategies
• Implement and maintain CI/CD pipelines using tools such as TeamCity or equivalent
• Deploy applications to various environments with efficiency and precision
• Write comprehensive unit tests using NUnit or similar testing frameworks
• Conduct performance testing to ensure application scalability and robustness
• Collaborate with cross-functional teams including QA, UI/UX, and product management
• Troubleshoot and resolve performance bottlenecks and bugs

Qualifications & Skills:

• Proven experience with C#
• Strong SQL Server experience, including database design and optimisation
• Proficiency with Git version control
• Hands‑on experience with CI/CD tools, preferably TeamCity; familiarity with other tools like Jenkins, Azure DevOps, etc., is a plus
• Experience with unit testing frameworks such as NUnit
• Knowledge of performance testing and profiling tools
• Understanding of deployment processes and environments
• Excellent problem‑solving and communication skills
• Ability to work effectively in a team‑oriented, Agile environment

This is a permanent role, working x3 days a week from the Belfast office (Paper Exchange). Strong market rates and excellent benefits.

Diversity Statement

Synechron are proud to be an equal opportunity employer. Our Diversity, Equity, and Inclusion (DEI) initiative 'Same Difference' is committed to fostering an inclusive culture - promoting equality, diversity and an environment that is respectful to all. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We offer flexible workplace arrangements, mentoring, internal mobility, learning and development programmes to support our global workforce. Empowerment and collaboration are at the core of how we operate.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant's gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.