Software Engineer (FinTech)
Posted 1 week ago by G MASS Consulting
Negotiable
Undetermined
Undetermined
London, England, United Kingdom
Summary: The Software Engineer role at a global FinTech organization involves working within a senior engineering group to design, build, and maintain high-performance software components for AI-enabled data products. The position emphasizes clean architecture and modern Java development in a collaborative Agile environment. Responsibilities include translating requirements into solutions, mentoring junior engineers, and contributing to architectural decisions. The role offers an initial 6-month contract with potential for extension or permanency.
Key Responsibilities:
- Design, develop and maintain scalable software and data-modelling components within a distributed platform
- Translate business and technical requirements into robust, well-designed solutions
- Apply best-practice software engineering standards including code reviews, TDD and CI/CD
- Troubleshoot and resolve complex software defects and performance issues
- Actively participate in Agile ceremonies including sprint planning, stand-ups, demos and retrospectives
- Mentor junior engineers through code reviews, pairing and knowledge sharing
- Contribute to architectural decisions to ensure scalability, reliability and security
- Produce and maintain clear technical documentation covering designs and workflows
- Engage with stakeholders to communicate progress, risks and solutions
- Continuously evaluate new tools, frameworks and approaches to improve engineering quality
Key Skills:
- Strong commercial experience in software engineering, with deep expertise in Java (modern versions preferred)
- Experience building distributed, enterprise-grade systems
- Proficiency in SQL and experience working with relational and big-data technologies
- Hands-on experience with commonly used databases such as PostgreSQL, HBase or Trino
- Knowledge of gRPC patterns (unary, streaming and REST mapping)
- Solid understanding of OOP design patterns, TDD and enterprise system design
- Comfortable working in Linux environments using command-line tools
- Experience with version control and collaborative development workflows
- Experience with modern Java UI frameworks (nice to have)
- Exposure to Apache Spark, Kafka or Avro (nice to have)
- Cloud experience across AWS, Azure, GCP or Oracle Cloud (nice to have)
- Knowledge of Kubernetes and containerised environments (nice to have)
- Familiarity with DevOps practices and automation (nice to have)
- Experience with additional languages or runtimes (e.g. C#, .NET, Python, JavaScript, GraalVM) (nice to have)
Salary (Rate): undetermined
City: London
Country: United Kingdom
Working Arrangements: undetermined
IR35 Status: undetermined
Seniority Level: undetermined
Industry: IT
G MASS is supporting a global FinTech organisation with the expansion of a core engineering team building enterprise-scale, AI-enabled data products. This role sits within a highly collaborative, Agile engineering environment focused on delivering scalable, cloud-native platforms used across the business. You'll work as part of a senior engineering group responsible for designing, building and maintaining high-performance software components within a distributed data ecosystem. The focus is on clean architecture, modern Java development and strong engineering practices.
Key responsibilities
- Design, develop and maintain scalable software and data-modelling components within a distributed platform
- Translate business and technical requirements into robust, well-designed solutions
- Apply best-practice software engineering standards including code reviews, TDD and CI/CD
- Troubleshoot and resolve complex software defects and performance issues
- Actively participate in Agile ceremonies including sprint planning, stand-ups, demos and retrospectives
- Mentor junior engineers through code reviews, pairing and knowledge sharing
- Contribute to architectural decisions to ensure scalability, reliability and security
- Produce and maintain clear technical documentation covering designs and workflows
- Engage with stakeholders to communicate progress, risks and solutions
- Continuously evaluate new tools, frameworks and approaches to improve engineering quality
Requirements
- Strong commercial experience in software engineering, with deep expertise in Java (modern versions preferred)
- Experience building distributed, enterprise-grade systems
- Proficiency in SQL and experience working with relational and big-data technologies
- Hands-on experience with commonly used databases such as PostgreSQL, HBase or Trino
- Knowledge of gRPC patterns (unary, streaming and REST mapping)
- Solid understanding of OOP design patterns, TDD and enterprise system design
- Comfortable working in Linux environments using command-line tools
- Experience with version control and collaborative development workflows
Nice to have
- Experience with modern Java UI frameworks
- Exposure to Apache Spark, Kafka or Avro
- Cloud experience across AWS, Azure, GCP or Oracle Cloud
- Knowledge of Kubernetes and containerised environments
- Familiarity with DevOps practices and automation
- Experience with additional languages or runtimes (e.g. C#, .NET, Python, JavaScript, GraalVM)
Benefits
- Initial 6-month contract, with strong possibility of extension and/or permanency.
- Salary to be discussed.