At a Glance
- Tasks: Re-architect and build innovative trading platforms while developing cutting-edge pricing tools.
- Company: Join a leading tech firm in the heart of London with a dynamic culture.
- Benefits: Enjoy a competitive salary, flexible work options, and opportunities for professional growth.
- Other info: Collaborative environment with excellent career advancement opportunities.
- Why this job: Make a real impact in finance tech and enhance your skills with exciting projects.
- Qualifications: 3-5 years in C#/.NET development and strong relational database skills required.
The predicted salary is between 80000 - 100000 £ per year.
C# . NET Software Developer – FX and Fixed Income (London)
Responsibilities
- Re‑architect and build the in‑house middle office platform and integrate with a new trading platform.
- Develop pricing toolsets.
- Integrate to external reporting, trade flow and pricing APIs.
- Maintain the company's daily operation on the existing platforms.
- Required Skills
- 3–5 years of experience with Microsoft web technologies (C#, . NET Core MVC).
- Relational database experience (SQL Server).
- Ability to build relationships with stakeholders (sales, brokers, middle office, external vendors).
- Produce clean, well‑written, fully tested production‑ready software.
Desirable Skills
- Knowledge of the FIX protocol.
- Knowledge of FX trade processing.
- Basic knowledge of Foreign exchange products (vanilla/exotic options, FX cash).
Qualifications
- Computer Science related degree preferred.
- At least 3 years experience in a comparable development role.
Send CV in Word format with salary and availability.
We are an equal opportunities company and welcome applications from all suitable candidates.
C# . NET Software Developer – FX and Fixed Income (Contract, City of London)
Daily rate: £450 – £600. Contract length: 12 months.
Responsibilities
- Re‑architect and build the in‑house middle office platform and integrate with a new trading platform.
- Develop pricing toolsets.
- Integrate to external reporting, trade flow and pricing APIs.
- Maintain the company's daily operation on the existing platforms.
- Required Skills
- 3–5 years of experience with Microsoft web technologies (C#, . NET Core MVC).
- Relational database experience (SQL Server).
- Ability to build relationships with stakeholders (sales, brokers, middle office, external vendors).
- Produce clean, well‑written, fully tested production‑ready software.
Desirable Skills
- Knowledge of the FIX protocol.
- Knowledge of FX trade processing.
- Basic knowledge of Foreign exchange products (vanilla/exotic options, FX cash).
Qualifications
- Computer Science related degree preferred.
- At least 3 years experience in a comparable development role.
Send CV in Word format with salary/rate and availability.
We are an equal opportunities company and welcome applications from all suitable candidates.
Junior Software Developer – C#, C++, Java, Delphi
Responsibilities
- Develop in Delphi and other object‑oriented languages (C#, C++).
- Contribute to new platform development and support existing products.
- Collaboration across project lifecycle from design to deployment.
- Required Skills
- Strong background in object‑oriented techniques; experience in Delphi, C++ or Java.
- Experience with SQL Server, client‑server, VSS, XML/XSL.
- Knowledge of mathematical or statistical concepts.
Send CV in Word format.
We are an equal opportunities company and welcome applications from all suitable candidates.
Software Engineer – C/C++ (Stevenage, Hybrid)
Responsibilities
- Design, develop, and maintain high‑performance backend systems.
- Translate high‑level requirements into robust technical solutions.
- Contribute to system architecture and scalability improvements.
- Deliver quality software within agreed timelines.
- Collaborate closely with product and cross‑functional teams.
- Required Skills
- Strong experience with C/C++ development and object‑oriented design.
- Background in Linux environments using GNU tools.
- Experience with network and multithreaded programming.
- Proven ability to mentor or support other engineers.
Benefits
- Competitive salary.
- 5% pension.
- 32 days holiday.
- Performance bonus, share incentive plan, healthcare, life assurance, income protection.
We are an equal opportunities company and welcome applications from all suitable candidates.
Software Developer – Java (Blackburn)
Responsibilities
- Develop software in Java using Spring Boot, Hibernate, and Git.
- Manage tickets, identify software issues, and design effective solutions.
- Collaborate on projects and contribute to new product development and architecture planning.
- Participate in code reviews and maintain quality standards.
- Required Skills
- Experience with Java (6–11 years) and Spring Boot/Hibernate.
- Experience with relational databases (My SQL, Postgre SQL).
- Version control with Git (branching, merging, code reviews).
Benefits
- 26 days holiday plus bank holidays.
- Progression and pension.
- Life insurance and training.
- Office-based, Monday to Friday 8:30 – 5:00 pm.
Send CV in Word format.
We are an equal opportunities company and welcome applications from all suitable candidates.
Software Developer – C#, . NET, SQL Server & RPG (London)
Responsibilities
- Develop software solutions and maintain databases.
- Support system integrations and BAU activities.
- Collaborate effectively in a team environment.
Qualifications
- Proficiency in C#, . NET, SQL Server, and RPG.
- Experience with core banking systems and BAU.
- Strong analytical and problem‑solving skills.
- Excellent communication and documentation skills.
Send CV in Word format with salary and notice period.
We are an equal opportunities company and welcome applications from all suitable candidates.
Business Development Representative – Reading
Responsibilities
- Generate global leads via cold calling.
- Follow up campaigns to identify new opportunities.
- Track and monitor activities within Salesforce.
- Conduct sales and negotiation.
- Required Skills
- Proven BDR experience within IT managed services/MSP environment.
- Excellent negotiation skills and telephone manner.
- Fluent English speaker.
- Commutable to Reading five days a week.
Send CV in Word format.
We are an equal opportunities company and welcome applications from all suitable candidates.
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Senior C#/.NET FX & Fixed Income Developer employer: Onyx-Conseil
Onyx-Conseil is an excellent employer for those seeking a dynamic and rewarding career in infrastructure engineering. With a strong focus on employee development, the company offers numerous growth opportunities, a collaborative work culture, and the chance to work on impactful projects in secure environments. Located in Salford, employees benefit from a vibrant community and access to cutting-edge technology, making it an ideal place for professionals looking to enhance their skills and contribute to meaningful projects.