Senior Software Engineer - Integrations

ZipRecruiter; London; On-site; GBP 70,000 - 100,000; Full time

Job summary

A leading global commodities firm is seeking a Senior Software Engineer to join their Engineering team in London. In this role, you will focus on designing and maintaining integration solutions, developing high-performance RESTful APIs, and ensuring reliable system performance. The ideal candidate will have over 8 years of experience in backend development with Java, particularly within the financial services sector.

Qualifications

• 8+ years of backend development experience with Java.
• Experience with complex integration projects.
• Proficiency with cloud platforms (AWS, Azure, GCP).

Responsibilities

• Design and implement scalable integration architectures.
• Develop secure, high-performance RESTful APIs.
• Lead testing activities, including unit and performance testing.

Skills

Backend Development

Integration Solutions

API Development

Java

CI/CD

Docker

Kubernetes

Cloud Platforms

Performance Optimization

Agile Development

Job description

Job Description

Cititec Talent is working with a leading global commodities firm to find a Senior Software Engineer for their expanding Engineering team. This role will focus on building and maintaining integrations within the company's technology ecosystem. You will be responsible for designing, developing, and supporting robust integration solutions.

Key Responsibilities:

• Design and implement scalable integration architectures spanning trading platforms, internal systems, and external data sources.




• Extend and configure middleware platforms to handle complex messaging workflows, data transformation, and routing logic.




• Develop secure, high-performance RESTful APIs in collaboration with cross-functional development teams.




• Monitor and optimise integration layers to ensure high throughput and low latency.




• Lead testing activities, including unit, integration, and performance testing of components.




• Maintain comprehensive technical documentation, such as architecture diagrams, API specifications, and operational runbooks.




• Troubleshoot and resolve critical issues across distributed environments. Implement robust error handling, retry strategies, and circuit breaker patterns to maintain system reliability and safeguard data integrity.




• Actively contribute to agile development processes, participating in sprint planning and team ceremonies.

Requirements:

• 8+ years of backend development experience with Java, ideally within commodities trading or financial services.




• Hands-on experience delivering complex integration projects.




• Proven ability to design and build high-performance, low-latency integration solutions.




• Experience with cloud platforms (AWS, Azure, GCP), including managed Kafka, serverless functions, and API gateways.




• Proficient in CI/CD, Docker, and Kubernetes.