C# Developer with (Python or Java)

Synechron; Belfast; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading technology consulting firm is seeking a skilled C# Developer based in Belfast, Northern Ireland. This role requires over 10 years of experience in C# along with proficiency in Python or Java. The ideal candidate will have strong SQL skills and familiarity with financial systems, contributing to the development and maintenance of web applications aligned with financial industry standards. This position offers a collaborative work environment focused on innovation and excellence.

Qualifications

• 10+ years of proven experience in C# development.
• Experience with financial systems and trading platforms.
• Strong background in SQL and database optimization.

Responsibilities

• Design, develop, and maintain financial web applications using C#.
• Collaborate with team members using Java or Python.
• Implement CI/CD pipelines and maintain code quality.

Skills

C#

Python

Java

SQL

Git

CI/CD

Tools

Azure DevOps

Jenkins

NUnit

xUnit

Job description

We have an immediate opening for a C# Developer with experience in Python or Java, possessing over 10 years of experience at Synechron, based in Belfast, Northern Ireland.

• Job Role: C# Developer with (Python or Java)
• Experience: 10+ yrs
• Hiring Location: Belfast, Northern Ireland

About Company

Synechron is a global technology consulting firm that helps leading organizations accelerate digital transformation through innovation, expertise, and agility. With more than 16,500 professionals across around 60 offices in over 20 countries, we combine deep industry knowledge with advanced capabilities in AI, cloud, cybersecurity, and data engineering.

Our regional teams, supported by strategic delivery centers, provide scalable, cost-efficient solutions tailored to local markets. Through our award-winning Synechron FinLabs accelerators and strategic partnerships with AWS, Microsoft, Databricks, Salesforce, and ServiceNow, we enable clients to innovate fast and lead with confidence. For more information on the company, please visit our website or LinkedIn community.

Synechron: Technology and AI Consulting for Business

Synechron is an innovative global consulting firm delivering industry-leading digital solutions to transform and empower businesses.

Diversity, Equity, and Inclusion

Synechron’s Diversity, Equity, and Inclusion (DEI) program, Same Difference, was developed because we believe in a culture of listening, respect, and opportunity.

We each bring unique backgrounds, thoughts, talents, and experiences with us to work every day, and we know that by embracing them, we are creating an even greater Synechron. The best way to build a strong team is to value individual differences. So, it doesn’t matter where you’re from or what you’ve had to do to get here – if you have the skills, enthusiasm, and drive to make your mark, we’ll support you like we support each other. Choose a career with us and let’s pursue innovation, together.

Job Descriptions

We are seeking a highly skilled strong expertise in C#, along with Java or Python, and a good understanding of financial systems. The ideal candidate will be adaptable linguistically, comfortable working primarily within the C# but open to leveraging Java, Python, or other technologies as needed. You should have hands-on experience with version control systems, CI/CD pipelines, testing frameworks, and possess a flexible mindset to adapt to evolving project requirements.

Key Responsibilities

• Design, develop, and maintain web applications primarily using C#, ensuring alignment with financial industry standards and requirements.
• Develop, optimize, and maintain SQL Server databases, queries, and stored procedures, with an awareness of financial data integrity and security considerations.
• Collaborate with team members across different programming languages (Java/Python) as needed, demonstrating adaptability and quick learning in diverse technical environments.
• Manage source code using Git, employing branching and merging strategies for collaborative development.
• Implement and maintain CI/CD pipelines using tools such as Team, Azure DevOps, or Jenkins.
• Deploy applications efficiently across various environments, ensuring high stability and security—especially pertinent for financial applications.
• Write comprehensive unit tests utilizing frameworks like NUnit, xUnit, or equivalents.
• Conduct performance testing and profiling to ensure application robustness and scalability suited for high-volume financial data processing.
• Troubleshoot, diagnose, and resolve code issues and performance bottlenecks.
• Stay updated on industry best practices, including those relevant to financial software development, data security, and compliance.

Qualifications & Skills

• Proven experience in C#
• Demonstrable experience or familiarity with financial systems, trading platforms, or financial data processing.
• Strong SQL experience, including database design, optimization, and data security best practices.
• Exposure to programming in Java or Python, or other relevant languages, with the ability to adapt and contribute across different tech stacks.
• Proficiency with Git version control.
• Hands-on experience with CI/CD pipelines, preferably using Team, Azure DevOps, Jenkins, or similar tools.
• Experience with unit testing frameworks such as NUnit, xUnit, or equivalent.
• Knowledge of performance testing, profiling tools, and system scaling techniques.
• Good understanding of deployment procedures, security protocols, and environment management.
• Strong problem-solving skills, attention to detail, and excellent communication abilities.
• Fluency in multiple programming languages (C#, Java/Python) is highly desirable, along with the flexibility to work across different tech stacks.
• Ability to thrive in a fast-paced, Agile environment, demonstrating adaptability and continuous learning.