Senior Technical Lead - Java, Microservices, React.js
United Kingdom
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Job Description
Senior Technical Lead - Java, Microservices, React.js
Adur District, England

Job Summary

Mandatory Skills & Experience

 

Java 17: Functional programming features, records, sealed classes, performance considerations.
Spring Boot: Auto-configuration, profiles, Spring Data/JPA, WebFlux (nice), validation, actuator.
SQL & RDBMS: Schema design, indexes, query optimization, transactions, isolation levels.
Apache Kafka: Topic design, partitioning strategy, consumer groups, offsets, retries/DLQ, schema registry/Avro/Protobuf.
GCP: Familiarity with Cloud Run or GKE, Cloud SQL, Cloud Storage, Secret Manager, IAM, VPC; cost/perf trade-offs.
DevOps Tooling: Git, CI/CD (Jenkins/GitHub Actions/GitLab), Docker; Kubernetes fundamentals; IaC awareness.
Software Engineering Fundamentals: DDD concepts, SOLID, testing (unit/integration), performance profiling, and security basics (OAuth2/JWT, OWASP Top 10).

 

Non-Mandatory (Nice-to-Have)

 

MongoDB (schema design, indexes, aggregation).
Messaging systems: RabbitMQ, GCP Pub/Sub, or SQS/SNS.
Caching & Performance: Redis, Hazelcast; rate limiting; API gateways (Kong/Apigee).
Observability: Prometheus/Grafana, ELK/EFK, OpenTelemetry, distributed tracing.
Build & Infra: Maven/Gradle tuning, Helm charts, Terraform, Argo CD.
Testing: Testcontainers, WireMock/MockServer, contract testing (Pact), chaos testing basics.
Security: mTLS, secrets r

Key Responsibilities

1. Lead the design and implementation of java, microservices, and react based solutions.
2. Collaborate with cross functional teams to deliver projects within scope and timeline.
3. Mentor team members on best practices in java, microservices, and react development.
4. Perform code reviews and ensure adherence to coding standards and best practices.
5. Troubleshoot and resolve complex technical issues in java, microservices, and react applications.
6. Stay updated on industry trends and technologies to recommend enhancements and improvements.

Skill Requirements

1. Strong proficiency in java programming language and spring framework.
2. Experience in designing and developing microservices architecture.
3. Proficiency in frontend development using react framework.
4. Solid understanding of restful apis and web services.
5. Experience with containerization technologies such as docker and kubernetes.
6. Familiarity with ci/cd pipelines and devops practices.
7. Strong problem-solving skills and ability to analyze and resolve technical issues.
8. Excellent communication and leadership abilities to effectively lead a technical team.

Other Requirements

1.Relevant certifications in Java, Microservices, or React are a plus.
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Information at a Glance

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 226,300 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 December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.