Senior Java & Microservices Engineer (React.js)

HCL Technologies Limited; Adur; On-site; GBP 95,000 - 125,000; Full time

Job summary

HCL Technologies Limited in Adur District, England, is seeking a Senior Technical Specialist with strong Java, microservices and React.js expertise to drive scalable solutions.

You will design robust architectures, mentor teams, and lead complex implementations across cloud and DevOps pipelines in an enterprise setting. This role demands deep Java knowledge, system design, and collaboration with stakeholders to deliver secure, high-performance applications.

Qualifications

• Core Java: OOP, collections, multithreading, JVM, memory management, exception handling, design patterns.
• Advanced Java / Spring Boot: REST APIs, microservices, security, DI, performance optimization.
• System Design: scalable architecture, high availability, distributed systems, design trade-offs.
• Database (SQL): query optimization, indexing, joins, transactions, data modeling.
• Cloud (Azure/AWS/GCP): deployment, monitoring, security, scalability, cost optimization.
• DevOps & CI/CD: Docker, Kubernetes, Jenkins, GitHub Actions, release strategies.
• Problem Solving: coding approach, algorithmic thinking, debugging, optimization.
• Leadership & Mentoring: team guidance, technical decision making, conflict handling.
• Communication: stakeholder management, requirement clarification, technical discussions.

Responsibilities

• Core Java: apply OOP principles, optimize performance, ensure robust code quality.
• Advanced Java / Spring Boot: develop REST APIs and microservices with security and DI.
• System Design: craft scalable architectures, ensure high availability and distributed design choices.
• Database: optimize SQL queries, indexing, joins, and transactional integrity.
• Cloud: deploy, monitor, secure, scale services and optimize cloud costs.
• DevOps: participate in CI/CD pipelines, automation and release strategies.
• Problem Solving: apply structured debugging and algorithmic thinking to complex problems.
• Leadership: guide teammates, make technical decisions, resolve conflicts.
• Communication: clarify requirements and manage stakeholders effectively.

Skills

Core Java

Advanced Java / Spring Boot

REST APIs

Microservices

System Design

Database (SQL)

Cloud

DevOps & CI/CD

Problem Solving

Leadership & Mentoring

Communication

Tools

Docker

Kubernetes

Jenkins

GitHub Actions

Job description

HCL Technologies Limited in Adur District, England, is seeking a Senior Technical Specialist with strong Java, microservices and React.js expertise to drive scalable solutions.

You will design robust architectures, mentor teams, and lead complex implementations across cloud and DevOps pipelines in an enterprise setting. This role demands deep Java knowledge, system design, and collaboration with stakeholders to deliver secure, high-performance applications.