Senior Java Technical Specialist - RESTful API, Spring Boot

HCL Technologies Limited; Adur; On-site; GBP 90,000 - 110,000; Full time

Job summary

HCLTech is seeking a Senior Java Technical Specialist in Adur District, England, to design, develop, and optimize RESTful APIs and microservices using Java, Spring Boot, and cloud platforms. The role requires deep expertise in core and advanced Java, design patterns, and system design for scalable, secure software solutions.

You will mentor engineers, lead technical decisions, and collaborate with stakeholders to clarify requirements and deliver high-quality software in a fast-paced environment.

Qualifications

• 8+ years of experience with Core/Advanced Java, Spring Boot and REST APIs.
• Strong understanding of multithreading, memory management and design patterns.
• Experience in distributed systems, scalability and high availability.
• Knowledge of cloud deployments and CI/CD pipelines.

Responsibilities

• Design, implement and optimize RESTful APIs and microservices.
• Lead technical discussions, mentor team members and drive architectural decisions.
• Ensure secure, scalable, and high-performing software systems.
• Collaborate with stakeholders on requirements and system design.

Skills

Core Java

Advanced Java / Spring Boot

REST APIs

Microservices

Security

Dependency Injection

Performance Optimization

System Design

Database (SQL)

Cloud (Azure/AWS/GCP)

DevOps & CI/CD

Docker

Kubernetes

Jenkins

GitHub Actions

Tools

Docker

Kubernetes

Jenkins

GitHub Actions

Job description

Senior Java Technical Specialist - RESTful API, Spring Boot Senior Java Technical Specialist - RESTful API, Spring Boot United Kingdom Job Description Senior Java Technical Specialist - RESTful API, Spring Boot Adur District, England

Job Summary

Skill or Category Mandatory / Non-Mandatory Evaluation Focus for 8+ Years Experience Core Java Mandatory OOP principles, Collections, Multithreading, JVM, Memory Management, Exception Handling, Design Patterns Advanced Java / Spring Boot Mandatory REST APIs, Microservices, Security, Dependency Injection, Performance Optimization System Design Mandatory Scalable architecture, High availability, Distributed systems, Design trade-offs Database (SQL) Mandatory Query optimization, Indexing, Joins, Transactions, Data modeling Cloud (Azure/AWS/GCP) Mandatory Deployment, Monitoring, Security, Scalability, Cost optimization DevOps & CI/CD Non-Mandatory (Preferred) Docker, Kubernetes, Jenkins, GitHub Actions, Release strategies Problem Solving Mandatory Coding approach, Algorithmic thinking, Debugging, Optimization Leadership & Mentoring Mandatory Team guidance, Technical decision making, Conflict handling Communication Mandatory Stakeholder management, Requirement clarification, Technical discussions

Key Responsibilities

Skill or Category Mandatory / Non-Mandatory Evaluation Focus for 8+ Years Experience Core Java Mandatory OOP principles, Collections, Multithreading, JVM, Memory Management, Exception Handling, Design Patterns Advanced Java / Spring Boot Mandatory REST APIs, Microservices, Security, Dependency Injection, Performance Optimization System Design Mandatory Scalable architecture, High availability, Distributed systems, Design trade-offs Database (SQL) Mandatory Query optimization, Indexing, Joins, Transactions, Data modeling Cloud (Azure/AWS/GCP) Mandatory Deployment, Monitoring, Security, Scalability, Cost optimization DevOps & CI/CD Non-Mandatory (Preferred) Docker, Kubernetes, Jenkins, GitHub Actions, Release strategies Problem Solving Mandatory Coding approach, Algorithmic thinking, Debugging, Optimization Leadership & Mentoring Mandatory Team guidance, Technical decision making, Conflict handling Communication Mandatory Stakeholder management, Requirement clarification, Technical discussions

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026totaled $14.8billion.