Senior Java / Kotlin Full Stack Engineer

About Company:

At Delaplex, we believe true organizational distinction comes from exceptional products and services. Founded in 2008 by a team of like-minded business enthusiasts, we have grown into a trusted name in technology consulting and supply chain solutions. Our reputation is built on trust, innovation, and the dedication of our people who go the extra mile for our clients. Guided by our core values, we don’t just deliver solutions, we create meaningful impact.

Experience

5–7 Years

About the Role

We are looking for a highly skilled Senior Software Engineer with strong expertise in Kotlin, Java, Spring Boot, Angular, SQL, and RabbitMQ to build scalable enterprise applications. The ideal candidate should have hands-on experience developing production-grade backend services, designing microservices, and working across multiple client engagements.

You will be responsible for designing, developing, and maintaining high-performance applications while collaborating with cross-functional teams to deliver robust software solutions.

Key Responsibilities

• Design, develop, and maintain scalable backend services using Kotlin and Java (Spring Boot).


• Develop and enhance RESTful microservices following industry best practices.


• Build and maintain Angular (v12+) web applications.


• Design and optimize SQL queries, stored procedures, and database transactions.


• Implement messaging solutions using RabbitMQ.


• Troubleshoot production issues and optimize application performance.


• Participate in code reviews, technical design discussions, and architecture decisions.


• Work independently across multiple client projects while ensuring high-quality deliverables.


• Support production deployments, including planned off-hours release windows aligned with US time zones.

Required Skills & Qualifications Experience

• 5–7 years of professional software development experience.


• Proven experience delivering applications into live production environments.

Backend Development

• Strong production experience with Kotlin.


• Excellent hands-on experience with Java and Spring Boot.


• Strong understanding of:
  
  
  
  • REST APIs
  
  
  • Microservices Architecture
  
  
  • Dependency Injection (DI)
  
  
  • Spring Configuration & Profiles
  
  
  • JPA/Hibernate
  
  
  • JDBC
  
  
  
  

Database

• Strong SQL expertise, including:
  
  
  
  • Complex query writing
  
  
  • Stored Procedures
  
  
  • Transactions
  
  
  • Query optimization
  
  
  • Execution plan analysis and performance tuning
  
  
  
  

Messaging

• Hands-on experience with RabbitMQ, including:
  
  
  
  • Messaging patterns
  
  
  • Exchanges and routing
  
  
  • Message acknowledgements
  
  
  • Dead-letter queues (DLQ)
  
  
  • Retry mechanisms
  
  
  
  

Frontend

• Experience developing and maintaining Angular applications (v12+).


• Strong understanding of:
  
  
  
  • Components
  
  
  • Services
  
  
  • RxJS
  
  
  • Reactive Forms
  
  
  
  

Soft Skills

• Strong analytical and problem-solving abilities.


• Excellent written and verbal communication skills.


• Ability to work independently across multiple client engagements.


• Willingness to participate in planned off-hours production deployments supporting US time zones.

Preferred Qualifications

Experience in any of the following will be an added advantage:

• Warehouse Execution Systems (WES)


• Warehouse Control Systems (WCS)


• Warehouse Management Systems (WMS)


• Warehouse Automation / Material Handling solutions


• AutoStore integrations


• Pick-to-Light systems


• Put-Wall solutions


• Tilt-Tray Sortation systems


• Docker & Kubernetes


• Cloud platforms (Azure or AWS)


• Observability tools such as ELK Stack or Grafana


• Kafka or MQTT


• Integration and End-to-End Test Automation