Senior Java Engineer Spring Boot (onsite)

Senior Java Engineer – (Spring Boot)

Location: Lahore PIA Road Office, Pakistan (Onsite)
Employment Type: Full-Time
Hiring Partner: HireOn

Job Summary

HireOn is a recrutiment agency, and recruiting on behalf of a leading client in Lahore seeking a Backend Engineer (Java Spring Boot) to build and scale high-performance, transaction-heavy backend systems. This role requires strong ownership, deep backend expertise, and the ability to design resilient, secure, and scalable services in a fast-paced environment.

Core Responsibilities Backend Development & System Design

• Design, develop, and maintain scalable backend services using Java 17 and Spring Boot


• Build robust RESTful APIs with versioning, validation, and error handling


• Implement Clean Architecture principles with strong domain separation


• Follow modular and layered architectural patterns


• Own features end-to-end from design to production support

Database & Data Management

• Design and optimize MySQL schemas, queries, and indexing strategies


• Manage schema versioning and database changes using Liquibase


• Execute reliable database migrations across environments


• Ensure data integrity and transactional consistency in concurrent systems

Performance, Caching & Messaging

• Implement caching strategies using Redis


• Develop asynchronous workflows using RabbitMQ or messaging systems


• Build and manage background jobs and schedulers


• Identify and resolve performance bottlenecks and race conditions

Security, Reliability & Monitoring

• Implement backend security using Spring Security


• Apply authentication and authorization best practices


• Maintain logging, monitoring, and auditing for system reliability

DevOps & Deployment

• Work with Docker and Docker Compose


• Contribute to CI/CD pipelines and automation


• Manage environment configurations across staging and production


• Support deployment and maintenance workflows

Collaboration & Engineering Excellence

• Participate in code reviews and architectural discussions


• Collaborate with frontend, QA, mobile, and DevOps teams


• Improve code quality, documentation, and development standards

Required Skills & Experience

• 3+ years of backend development experience with Java & Spring Boot


• Strong expertise in:
  
  
  
  • Spring Boot, Spring MVC, Spring Security
  
  
  • REST API design and development
  
  
  
  


• Advanced SQL skills with MySQL (optimization, indexing, tuning)


• Hands-on experience with Liquibase


• Experience with Redis caching


• Experience with RabbitMQ / event-driven architecture


• Solid understanding of concurrency, scalability, and system performance


• Strong debugging and problem-solving skills


• Familiarity with AI-assisted development tools like Claude

Nice to Have

• Experience in FinTech, POS, Retail, or high-transaction systems


• Exposure to microservices or distributed systems


• Familiarity with Jakarta EE, Lombok


• Experience with CI/CD tools and pipelines


• Knowledge of cloud platforms (AWS, GCP, Azure)


• Experience with internationalization or multi-region deployments


• Basic shell scripting