C Developer

C Developer – Analytics

Location: Belfast

Salary: Competitive

Join our team of expert programmers in the Options Development Team!

Who are we?

Options is the largest global financial technology company headquartered in Belfast. We are at the forefront of banking and trading infrastructure, serving clients globally with offices in New York, Chicago, Toronto, London, Cambridge, Paris, Hong Kong, Tokyo, Singapore, and Auckland. At Options, our services are woven into the hottest trends in global tech, including high-performance Networking, Cloud, Security, and AI (Artificial Intelligence).

Why Options?

Global travel: We have offices in New York, Chicago, Toronto, London, Belfast, Dublin and across Asia.

Continuous career development opportunities: We provide professional skills development and technical training.

The chance to be a part of a self-sufficient, successful team: The Options team operates in a fast-paced environment with endless opportunities for innovation and forward-thinking.

Competitive salary: In addition to a competitive salary, Options reward employees with a range of bonus incentives and employee benefits.

The Role

We develop industry-leading tools for high fidelity, real-time packet capture, deep traffic inspection and real time analytics. The platform is used by clients for monitoring, trade analytics and troubleshooting in low latency financial environments.

As an Analytics Developer, you will build core components that interpret, transform, and model captured network data to enable actionable insights and downstream integration across our platform.

What you will be doing

• Building analytics modules for parsing, filtering, and interpreting captured packet data.
• Designing reusable components using appropriate software patterns for C.
• Transforming protocol or traffic data into structured formats for reporting/visualization.
• Working with teams to define internal data formats and cross-module interfaces.
• Ensuring code quality and extensibility through disciplined testing and code reviews.
• Collaborating with other engineers to deliver scalable, maintainable analytics tooling.

We’re looking for someone who has technical proficiency in:

• Solid knowledge of modular design and structured programming in C.
• Strong understanding of data structures (linked lists, trees, hash maps, etc.).
• Familiar with software architecture concepts and abstraction techniques.
• Understanding of algorithm design and computational complexity.
• Skilled at breaking down complex problems into reusable, testable components.
• Familiarity with libraries for serialization, data transformation, or logging pipelines.
• Experience with unit testing frameworks and automated build/test environments.
• Familiarity with bash scripting is beneficial.

We’re also looking for candidates with:

• Strong research, writing and communication skills.
• Ability to work in a fast-paced and changeable working environment.
• Exceptional organisational skills and strong attention to detail.
• Desire to travel and see the world.
• Ability to work independently and manage your own projects in a professional manner.
• A passion for innovation and the financial technology sector.
• Strong interpersonal skills.
• Project management skills and proven ability to manage own workload.

How to apply:

Please submit a CV and cover letter to the C Developer – Analytics position on the Options Careers Page at https://www.options-it.com/careers/.

On your CV, please include a section on your Hobbies and Interests. On the covering letter please detail the role you are applying to, along with your availability.

If you have any questions about this position, please contact [email protected].