Lead Java Developer

Oakwell Hampton Group; Greater London; On-site; GBP 120,000 - 138,000; Full time

Job summary

Oakwell Hampton Group is seeking an experienced Lead Software Engineer to deliver high-velocity, real-time financial services solutions. You will blend hands-on coding with technical leadership to drive architecture and delivery across microservices, reconciliation, and risk platforms.

Responsibilities include championing TDD/ATDD, mentoring teams, and collaborating with stakeholders to optimize latency, scalability, and reliability while advancing Java, Spring Boot, and data technology

Qualifications

• Strong Core Java (8/11/17) fundamentals and OO design.
• Extensive Spring Boot, Hibernate, J2EE, REST experience.
• Deep knowledge of messaging and middleware: Kafka, JMS, MQ, FIX.
• Experience with Hazelcast/Eh-cache and Cassandra/Oracle/SQL databases.
• Proficient in Git, Maven, TeamCity, and Jenkins CI/CD.
• Experience with financial instruments and platforms (Murex/ActivePivot).

Responsibilities

• Design and develop microservices-based, low-latency platforms using Core Java and Spring Boot.
• Develop and support real-time trade reconciliation and risk aggregation systems across multi-asset products.
• Build distributed, thread-safe backend APIs with Kafka, Hazelcast, and Cassandra.
• Optimize platforms for low latency with lock-free programming and GC tuning.
• Champion TDD, ATDD, and Agile methodologies while ensuring high code quality.
• Lead design discussions, manage stakeholder expectations, and mentor engineering teams.

Skills

Core Java

Spring Boot

Multi-threading

Design patterns

REST APIs

Kafka

Hazelcast caching

Cassandra databases

SQL databases

Git & CI/CD

Tools

JMS

MQ

FIX Protocol

Maven

TeamCity

Jenkins

Git

Job description

My client is a cutting-edge, fast-moving, modern consulting firm seeking an experienced Lead Software Engineer to deliver innovative solutions that enhance business efficiency for their top-tier financial services clients. You will play a pivotal role as both an individual contributor and technical lead.

Key Responsibilities:

• Design and develop microservices-based, low-latency platforms utilizing Core Java and Spring Boot.
• Develop and support real-time trade reconciliation systems and risk aggregation platforms covering multi-asset products like FX, Bonds, and Derivatives.
• Build distributed, thread-safe backend APIs integrating messaging and caching architectures such as Kafka, Hazelcast, and Cassandra.
• Optimize platforms for efficiency and low latency, focusing on lock-free programming and GC tuning.
• Champion Test-Driven Development (TDD), ATDD, and Agile methodologies while maintaining high code quality.
• Lead design discussions, manage stakeholder expectations, and provide mentoring and coaching to engineering teams.

Key Skills & Requirements:

• Advanced expertise in Core Java (Java 8/11/17) with a strong foundation in object-oriented programming, design patterns, collections, and multi-threading.
• Extensive hands-on experience with Spring Boot, Hibernate, J2EE, and REST.
• Deep knowledge of messaging protocols and middleware including Kafka, JMS, MQ, and FIX Protocol.
• Solid experience with distributed caching (Hazelcast, Eh-cache) and databases (Cassandra, Oracle, SQL).
• Proficiency with version control and CI/CD pipelines utilizing Git, Maven, TeamCity, and Jenkins.
• Experience working with financial instruments (Interest Rates Swaps, Options, Commodities) and platforms such as Murex or ActivePivot.

£650 - £750 per day.