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Arimac is looking for a experienced and dynamic individual to join us as a Tech Lead - Java. If you have the expertise to excel in a fast-paced, innovative, and collaborative environment, please send us your CV at careers@arimaclanka.com

Responsibilities:

• Design and evolve microservices-based architectures using Java and Spring Boot
• Contribute to solution architecture, including API contracts (REST/GraphQL). data flow, scalability, and modularization,
• Lead backend implementation for digital payment systems, wallets, and secure transactional flows.
• Ensure systems are highly available, scalable, and fault-tolerant.
• Lead a team of Java engineers, conducting code reviews. enforcing best practices. and mentoring junior members.
• Drive engineering excellence through clean code, design patterns, and hands on guidance
• Collaborate with DevOps. QA. and frontend teams for full stack delivery
• Apply secure coding practices aligned with OWASP, PCI DSS, and FinTech compliance..
• Implement encryption, tokenization, and IAM policies for secure user and transaction management.
• Tune system performance with caching, optimized queries, and load testing strategies.
• Design and support cloud-native deployments on Azure, AWS, or GCP.
• Guide the setup of Cl/CD pipelines and containerized builds using Docker & Kubernetes.
• Integrate observability tools such as Prometheus, ELK Stack, Grafana, and alerts for production monitoring.
• Work closely with Product Owners, Business Analysts, and stakeholders to shape technical solutions.
• Participate in Agile rituals - sprint planning, réviews, and retrospectives.
• Document system architecture, APi schemas, and data models clearly and accessibly.

Qualifications:

• Bachelor's in Computer Science, Engineering, or equivalent field.
• 6+ years of Java backend development experience, with 2+ years in a leadership or design-heavy role.
• Strong command of Spring Boot, Spring Cloud. JPA/Hibernate, and microservices.
• Solid understanding of RESTful APls, OAuth2/JWT, and secure authentication flows.
• Experience with PostgreSQL. MySQL or NoSQL databases like Redis.
• Familiarity with Kafka, RabbitMQ, or other messaging/event systems.
• Hands-on with unit and integration testing (JUnit, Mockito. TestContainers)
• Cloud deployment skills (Azure, AWS, or CCP), preferably using Docker & Kubernetes.
• Experience in FinTech. digital banking, or payment systems is a strong advantage
• Willingness to learn, adapt and contribute to architectural decisions.
• MSc in Advance Software Engineering will be added advantage
• Certifications in cloud platforms. Kubernetes, or security standards (PCI-DSS) ISO 27001) are a plus.