Enterprise Java Technical Lead - DNA INFOTECH PTE. LTD.

Polluxa, Inc.; Singapore; On-site; SGD 150,000 - 190,000; Full time

Job summary

Polluxa, Inc. seeks an experienced Enterprise Java Technical Lead to drive architecture, modernization, and delivery of high-performance enterprise applications and cloud-native platforms.

This role combines hands-on engineering, technical architecture, and leadership, guiding distributed engineering teams toward engineering excellence and secure, scalable solutions.

Qualifications

• 12+ years of software engineering with enterprise Java experience.
• Strong hands-on Java 8/11/17/21 and modern Spring ecosystem.
• Experience leading globally distributed engineering teams.

Responsibilities

• Lead architecture and development of enterprise Java apps, microservices, and APIs.
• Design and modernize scalable, cloud-native solutions.
• Drive migration of legacy apps toward modern architectures with minimal disruption.
• Build secure APIs and integrations using OAuth2/JWT/OpenAPI and enterprise security practices.
• Mentor engineers, conduct code reviews, and promote best practices.

Skills

Java

Leadership

Microservices

Spring Framework

Cloud (AWS)

Tools

JUnit

Mockito

Docker

Kubernetes

Jenkins

Swagger/OpenAPI

Job description

We are looking for an experienced Enterprise Java Technical Lead to drive the architecture, modernization, and delivery of high-performance enterprise applications and cloud-native platforms. The ideal candidate will bring 12+ years of software engineering experience , with deep expertise in the Java ecosystem and a strong track record of designing scalable, secure, and resilient solutions.

This role combines hands‑on engineering, technical architecture, and leadership , with responsibility for translating complex business requirements into robust technical solutions and guiding distributed engineering teams toward engineering excellence.

Key Responsibilities

• Lead the architecture and development of enterprise-grade Java applications, microservices, and REST/SOAP APIs .
• Design and modernize scalable solutions using Java 8–21, Spring Boot, Spring Cloud, Hibernate, and Spring Security .
• Drive migration of legacy applications toward modern, decoupled, cloud-native architectures with minimal business disruption.
• Design distributed systems and event-driven solutions using Kafka, RabbitMQ, JMS , and related messaging technologies.
• Build secure APIs and integrations using OAuth2, JWT, API authentication, OpenAPI/Swagger , and enterprise security best practices.
• Lead technical design reviews and establish engineering standards based on SOLID, TDD, DDD, design patterns, and clean architecture .
• Develop and enforce automated testing, code quality, CI/CD, and deployment practices using JUnit, Mockito, SonarQube, Jenkins, Docker, and Kubernetes .
• Design solutions across relational and NoSQL databases, including PostgreSQL, MySQL, MS SQL, MongoDB, Snowflake, and Redis .
• Drive cloud adoption and deployment across AWS environments , including services such as EC2, ECS, Fargate, RDS, S3, CloudWatch, and related platforms.
• Troubleshoot complex production and performance issues and conduct capacity, scalability, and performance assessments .
• Lead zero‑downtime deployment strategies and ensure high availability, resilience, and operational stability.
• Partner with product managers, architects, and business stakeholders to translate requirements into practical technical solutions.
• Mentor engineers, conduct code reviews, and foster a culture of continuous improvement and knowledge sharing.
• Lead globally distributed engineering teams and ensure predictable delivery across Agile/Scrum environments.

Required Skills & Experience

• 12+ years of software engineering experience , with extensive enterprise Java development experience.
• Strong hands‑on expertise in Java 8, 11, 17, and 21 .
• Advanced experience with Spring Boot, Spring Cloud, Spring Data JPA, Spring Security, and Hibernate .