Senior java developer Work, Jobs in Croydon (with Salaries)

C# / .NET Developer – Front Office, FX & Orchestrade Systems
Margo Conseil —London
- Mentoring
- APIs
- Agile
C++ Senior Developer
Luxoft —London
- Computer Science
- Software troubleshooting
- Engineering
Senior Software Engineer - Graph Analytics for Snowflake
Neo4j —London
- DevOps
Senior Platform SRE
IG Group —London
- Full-time
- Hybrid work
- Presentation skills
- Mentoring
- Communication skills
- Gym membership
- Life insurance
7d
Staff SW Engineer
The Currency Cloud Services Limited —London
- DevOps
- AWS
- Communication skills
Quick apply
Senior Full-Stack Cloud Native Developer (OTC Team), Charles River Development, Assistant Vice President
State Street —London
- Full-time
- Azure
- Computer Science
- Engineering
ServiceNow Developer
Capgemini Sogeti —London
Lead Back End Engineer
mkodo Ltd —London
- Mentoring
- Communication skills
- Life insurance
- Referral programme
Functional Tester- Mobile
Persistent —London
- Full-time
- Agile
- Flexible schedule
5d
Senior Build Engineer
Smart Communications —London
- DevOps
- Java
- Analysis skills
Development Team Lead – Client Facing Technology
TP ICAP —London
- Full-time
- Management
- Databases
- AWS
Lead Web3 Engineer - Digital Assets Platform
Citi —London
- Full-time
- Hybrid work
- Doctoral degree
- Computer Science
- Software troubleshooting
- Annual leave
- Employee assistance programme
8d
Lead AI Software Engineer
Vodafone —London
- Full-time
- AI
- Leadership
- Communication skills
4d
Technical Lead
London Stock Exchange Group —London
- Full-time
- Customer service
- English
- Software development
Production AI Engineer - Vice President
Citi —London
- Full-time
- Hybrid work
- Computer Science
- Master's degree
- Analysis skills
- Annual leave
- Employee assistance programme
Senior SW Engineer Java/Ruby
The Currency Cloud Services Limited —London
- Software troubleshooting
- Mentoring
- AI
Quick apply
Senior Software Engineer, Banking Connectivity
Ripple —London
- Full-time
- AI
Quick apply
Quant Developer - AHL
Man Group —London
- Engineering
- Maths
- Software development
- Annual leave
- Sick pay
Quick apply

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Senior C++ Developer
SWIFT Financial Messaging Services —London
Participation in an on-call rota system to provide engineering support outside normal working hours to the product's Centre of Expertise, which will be…
C++ Senior Developer
Luxoft —London
Comfortable with 3 days/ week working from Office (WFO). Design, develop, and optimize low latency trading gateways and market access components.

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C# / .NET Developer – Front Office, FX & Orchestrade Systems

Margo Conseil -
London

Apply Now

Job details

Permanent

Qualifications

Continuous integration
IT support
Back-end development
Mentoring
APIs
Agile
Middleware
Project leadership
Software development or architecture experience
Banking
Software architecture

Full job description

Join MARGO in the UK (London)

MARGO is a tech-native consultancy delivering high value-added IT expertise to the financial services industry. We specialise in complex software engineering environments where performance, robustness, and scalability are critical: real-time systems, low-latency architectures, and high-throughput data processing

Joining MARGO means working in demanding Front Office and Trading IT environments while benefiting from a human-sized structure, close follow-up, and tailor-made training paths.

Business Context

You will join the FX Risk IT environment of a leading tier-1 investment bank. The team is responsible for designing and maintaining mission-critical systems supporting FX Cash (Forward, Swap, NDF) and FX Derivatives (Options, Carbon Offsets).

The environment is built around the Orchestrade vendor platform and involves close collaboration with traders, quants, and risk managers to deliver high-performance trading solutions.

Role Overview

We are looking for a Senior C# / .NET Developer with a strong technical background to lead the development and integration of FX trading solutions. While expertise in the Orchestrade platform is highly desirable, we are primarily seeking a high-caliber engineer who can master complex vendor APIs and provide technical leadership within a fast-paced, agile culture.

Key Responsibilities

Design & Development

System Evolution: Analyse, design, and develop high-performance C# solutions for FX cash and derivative products.
Orchestrade Integration: Develop code to integrate Orchestrade with connected internal systems such as Sigma, Barracuda, and Deal Hub.
Architecture: Advise on the best architectural approaches for integrating vendor products with service-oriented and micro-services concepts.
Data & Middleware: Design clean interfaces and manage data flow using SQL and messaging middleware.

Engineering & Mentoring

Technical Leadership: Provide mentoring and guidance to other developers on C# best practices and FX business logic.
Delivery Ownership: Take ownership of specific project deliveries, applying agile methodologies and project management skills where required.
Quality Standards: Drive high engineering standards through continuous integration and DevOps practices.

Production & Support

Level 3 Support: Provide expert-level support for production Orchestrade systems and connected FX IT platforms.
System Controls: Ensure all developments comply with internal systems, controls, and regulatory requirements.

Technical Environment & Skills

Essential Experience

Expert C# / .NET: Substantial experience in software development with deep knowledge of the .NET ecosystem
Investment Banking: Prior experience working in a Front Office environment alongside traders, quants, or risk managers.

- Backend & Middleware: Strong understanding of SQL/RDBMS and messaging middleware. - Architecture : Solid grasp of service-oriented and micro-services design concepts.

Valued Technical Exposure (Desirable)

Orchestrade: Strong experience with Orchestrade features, configurations, and APIs.
FX Domain: Knowledge of FX Forward, Swap, NDF, and FX Options/Derivatives.
Cross-Platform: Experience with C++, Java, or FIX protocol.
Other Vendors: Familiarity with Calypso, Murex, or similar trade management products.

Why Join MARGO

Tier-1 Exposure: Work at the heart of FX Risk IT for a major global bank.

Technical Growth: Highly challenging assignments bridging vendor platform expertise and bespoke C# engineering.

Career Progression: Clear paths for technical leadership and architectural ownership.

Mentorship Culture: Benefit from and contribute to a high-quality peer-review and mentoring environment.

Please note: We do not offer visa sponsorship for this position.

Interested? Motivated? Apply on our website or at [email protected]

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Apply Now

Refine Your Search

senior java developer jobs in croydon

C# / .NET Developer – Front Office, FX & Orchestrade Systems

C++ Senior Developer

Senior Software Engineer - Graph Analytics for Snowflake

Senior Platform SRE

Staff SW Engineer

Senior Full-Stack Cloud Native Developer (OTC Team), Charles River Development, Assistant Vice President

ServiceNow Developer

Lead Back End Engineer

Functional Tester- Mobile

Senior Build Engineer

Development Team Lead – Client Facing Technology

Lead Web3 Engineer - Digital Assets Platform

Lead AI Software Engineer

Technical Lead

Production AI Engineer - Vice President

Senior SW Engineer Java/Ruby

Senior Software Engineer, Banking Connectivity

Quant Developer - AHL

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