Java Technical Lead

Nova Hunte Ltd; Brussel Hoofdstad; Híbrido; EUR 90.000 - 120.000; Jornada completa

Descripción de la vacante

Nova Hunte Ltd. is seeking a Java Technical Lead in Brussels to drive enterprise Java development for a major financial services client. You will lead technical decisions, review code, and mentor a multi-disciplinary team across developers, testers, architects, and security specialists.

Expect strong focus on Spring, JPA/Hibernate, REST APIs, and batch processing with Spring Batch. You will ensure secure-by-design implementations, optimize performance, and coordinate CI/CD pipelines and releases

Formación

• 5+ years of enterprise Java development and technical leadership.
• Strong knowledge of Spring, JPA/Hibernate, SQL, and REST APIs.
• Experience with Git version control and automated testing.
• Ability to design solutions and review code across modules.
• Performance analysis and memory management expertise.
• Experience with Spring Batch and large data transfers.
• Familiarity with secure-by-design practices and OWASP.
• Experience in banking or regulated environments.

Responsabilidades

• Define, implement, and review Java components using Spring Framework, JPA/Hibernate, SQL, REST APIs, Git, and automated testing.
• Diagnose and resolve complex technical issues across application and DB, including root-cause analysis.
• Maintain enterprise Java applications, batch processes, REST APIs, report generation and high-volume data transfers.
• Guide developers through code reviews, pair programming, troubleshooting, documentation and knowledge transfer.
• Ensure secure-by-design Java solutions based on OWASP principles and coordinate remediation of vulnerabilities.
• Take ownership of technical quality, maintainability, performance, data integrity, and regulatory compliance.

Conocimientos

Technical leadership

Enterprise Java

Root-cause analysis

Code reviews

Mentoring

Cross-functional collaboration

Security best practices

Performance optimization

Unit testing

Architecture design

Herramientas

Spring Framework

JPA/Hibernate

SQL

REST APIs

Git

Maven

CI/CD pipelines

Spring Batch

JDBC/ORM

Data export patterns

Descripción del empleo

# Java Technical LeadBrussels, Belgium ContractAre you a Java Technical Lead with 5+ years of experience in enterprise Java application development? Apply now for a long-term contract opportunity with a leading financial services client in Brussels.## Requirements* 5+ years of experience in enterprise Java application development and technical leadership* Strong command of Core Java, object-oriented design, design patterns, collections, concurrency, exception handling, and resource management* Strong practical knowledge of Spring Framework, JPA/Hibernate, SQL, and REST APIs* Experience with Git version control and automated unit/integration testing* Expertise in solution design, code review, and impact analysis across modules, compatibility, and modernisation* Performance analysis and optimisation skills, including diagnosing application and database bottlenecks, Oracle query plans, indexes, JDBC/ORM behaviour, pagination, and memory management* Experience with advanced batch processing using Spring Batch, including keyset pagination, restart/recovery, transaction boundaries, and memory-efficient data transfers* Knowledge of reporting and data export patterns (PDF, Excel, Data Warehouse)* Security and access management expertise, including OWASP principles, secure-by-design practices, access control, authentication, API security, certificate management, OAuth/OIDC, RBAC/ACL, and segregation-of-duties principles* Experience with Maven builds, CI/CD pipelines, application releases, backports, environment configuration, and rollback management* Technical leadership experience, including coaching developers through code reviews, pair programming, troubleshooting, and knowledge transfer* Cross-functional collaboration skills, working effectively with developers, testers, analysts, architects, security experts, database and infrastructure experts, and operations teams* Strong problem-solving skills, including root-cause analysis and resolution of complex technical issues (application, database connectivity, integration, build, deployment, configuration, and performance issues)* Experience working within banking or regulated environments, ensuring compliance, data integrity, and business continuity* Language(s): English (fluent), French or Dutch (fluent), and either Dutch or French (professional)## Job Description* Define, implement, and review Java components using Spring Framework, JPA/Hibernate, SQL, REST APIs, Git, and automated testing, ensuring maintainability and alignment with development standards* Diagnose and resolve complex technical issues including application, database connectivity, integration, build, deployment, configuration, and performance problems, including root-cause analysis* Maintain enterprise Java applications, batch processes, REST APIs, report generation, and high-volume data transfer patterns* Manage Maven builds, CI/CD pipelines, application releases, backports, environment configuration, rollback implications, and traceability* Guide developers through code reviews, pair programming, troubleshooting, documentation, and knowledge transfer* Align with product analysts, IT architects, security experts, database and infrastructure experts, and operations teams* Act as an escalation point for complex issues involving frameworks, databases, build tooling, and deployment configuration* Ensure secure-by-design Java solutions based on OWASP principles and guide developers on security best practices* Review and coordinate remediation of security vulnerabilities* Take ownership of technical quality, maintainability, performance, data integrity, business continuity, and compliance with banking-environment constraints* Propose pragmatic improvements and protect delivery quality across the application landscape