Insight Global
Technical Lead
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Insight Global are seeking a Technology Lead – Java
Insight Global are seeking a Technology Lead – Java for a leading global financial services organisation. This is an excellent opportunity for a highly technical, hands-on engineering leader to act as the authority across a portfolio of mission-critical Java applications supporting large-scale transaction processing platforms.
This position requires 3 days onsite per week in Chester, England for a 12-month rolling contract with strong extension potential and is Inside IR35.
The successful candidate will remain hands-on whilst providing technical leadership, architectural direction, engineering governance, and platform optimisation across a complex enterprise estate. This role is ideal for a passionate technologist with deep Java expertise, extensive JVM tuning experience, and a track record of driving engineering excellence within large-scale environments.
Key Responsibilities:
- Own the technical health, performance, scalability, and resilience of a portfolio of business-critical Java applications.
- Act as the technical authority for JVM performance tuning, memory management, garbage collection optimisation, thread analysis, heap diagnostics, and application profiling.
- Lead the design, development, and optimisation of Spring Boot microservices, distributed systems, event-driven applications, and enterprise APIs.
- Drive engineering best practices across architecture, coding standards, observability, non-functional requirements, and software delivery.
- Partner closely with DevOps and SRE teams to improve CI/CD pipelines, production stability, platform reliability, and operational excellence.
- Champion modern engineering approaches including intelligent automation, AI-assisted development, operational analytics, and emerging technology adoption.
- Provide technical leadership through mentoring, design reviews, and guidance across multiple delivery teams.
- Collaborate with architecture, infrastructure, security, and business stakeholders to deliver secure, scalable, and high-performing solutions.
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Must-Have Requirements Include:
- Expert-level experience developing and supporting enterprise-scale applications using Java/J2EE.
- Deep expertise troubleshooting and optimising JVM-based applications in production environments, including garbage collection optimisation, heap analysis, thread analysis, memory management, and performance diagnostics.
- Extensive experience designing, building, and supporting Spring Boot microservices within large-scale enterprise environments.
- Strong expertise with REST APIs, distributed systems, microservices architecture, and event-driven design patterns.
- Experience working with messaging or streaming technologies such as Kafka, MQ, or similar platforms.
- Strong experience with application observability, monitoring, and production diagnostics using tools such as Dynatrace, AppDynamics, Splunk, Grafana, ELK, or Prometheus.
- Experience evaluating and implementing AI-powered solutions within enterprise technology environments, including engineering productivity tooling, intelligent automation, operational analytics, or GenAI/LLM use cases.
- Strong understanding of software development lifecycle methodologies, CI/CD pipelines, DevOps practices, automated testing, and release management.
- Excellent communication and stakeholder management skills with the ability to influence architecture, engineering strategy, and technical direction.
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Plusses Include:
- Experience supporting high-volume transactional or mission-critical platforms.
- Experience deploying and supporting applications across on-premise, hybrid, and cloud-hosted environments.
- Experience within financial services or highly regulated industries.
- Knowledge of payments ecosystems, including CHAPS, TARGET2, SWIFT, CBPR+, RTP, or ISO 20022.
- Experience with financial transformation platforms such as Trace Financial Transformer, Volante, or Bottomline.
- Knowledge of Site Reliability Engineering (SRE), operational resilience, and platform reliability engineering.
- Relevant certifications or qualifications in Java, Cloud, Architecture, AI/ML, or Agile delivery.
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