Job Description
Vacancy for Java Software Engineer
LAUGS Eco Sri Limited is a BOI venture that commenced its journey with an entrepreneurial vision to pioneer air quality management in Sri Lanka. The company facilitates the government-run mandatory Vehicle Emission Testing (VET) program through a network of 238 customer touchpoints including 95 fixed centers and 142 mobile locations covering all regions in the country.
Key Responsibilities
- Develop, test, maintain, and support Java backend services, APIs, integrations, and enterprise application components under agreed technical designs.
- Implement microservice components with clear responsibilities and well-defined API contracts; understand when to use synchronous API calls versus asynchronous messaging.
- Build and maintain integrations with internal and external systems using REST APIs, and messaging; implement input validation, error handling, authentication, and logging.
- Implement queue consumers and producers using an established platform such as Azure Service Bus or RabbitMQ; handle retries, failed messages, duplicate delivery, and dead-letter workflows according to team standards.
- Apply Java concurrency fundamentals safely, including thread lifecycle, Runnable/Callable, ExecutorService basics, synchronised sections, concurrent collections, race-condition awareness, and deadlock prevention.
- Write maintainable SQL queries and work with relational databases; understand joins, transactions, indexes, and basic query optimisation.
- Use Git for source control, including commits, branches, pull requests, code reviews, and merge-conflict resolution.
- Write unit and integration tests; support API contract testing, defect investigation, debugging, and release validation.
- Assist with application configuration, deployment, monitoring, and troubleshooting in Microsoft Azure, following team procedures.
- Maintain technical documentation, API specifications, and support notes; communicate progress, risks, and blockers to the team.
Candidate Profile
- Typically 1–3 years of professional Java development experience. Candidates with strong relevant internships, academic projects, or demonstrable hands-on work may also be considered.
- Degree in Computer Science, Software Engineering, Information Technology, or a related discipline.
Required Technical Skills
- Good foundation in Java and object-oriented programming, including collections, generics, exception handling, streams/lambdas, and basic JVM concepts.
- Working knowledge of Java threading and concurrency: Runnable/Callable, thread lifecycle, synchronization, ExecutorService basics, shared-state risks, race conditions, and deadlocks.
- Understanding of microservice fundamentals, API contracts, configuration, logging, and the challenges of service-to-service communication.
- Understanding of message queues and asynchronous processing; familiarity with producers/consumers, acknowledgements, retries, duplicate messages, and dead-letter queues.
- Ability to write SQL queries using joins, subqueries, aggregations, and data manipulation statements; basic knowledge of relational database management systems and indexes.
- Understanding of REST, HTTP methods, status codes, JSON, and basic API security concepts.
- Familiarity with Git-based team workflows, Maven or Gradle, and automated testing with JUnit; knowledge of cloud concepts is beneficial.
- Basic knowledge of Microsoft Azure and cloud-hosted application concepts, including deployment, configuration, monitoring, and CI/CD.
- Ability to read existing code, investigate defects methodically, and implement fixes with appropriate guidance.
Core Competencies
- Logical thinking and a methodological approach to debugging.
- Attention to detail and commitment to code quality, test coverage, and documentation.
- Good communication, teamwork, and openness to feedback.
- Ability to learn new technologies and take ownership of assigned tasks.
If you are confident that you have the right skills, knowledge, attitude and passion to grow with us, please forward your resume to ecocareers@laugfs.lk within 07 days of this notice, starting two non-related referees. Please mention the post applied for in the subject line.