Java Lead Solution Architect

Optimum Solutions (Singapore) Pte Ltd.; Singapore; On-site; SGD 100,000 - 140,000; Full time

Job summary

Optimum Solutions (Singapore) Pte Ltd. is seeking a Lead Solution Architect to provide strategic technical leadership and hands-on Java development. This position emphasizes enterprise architecture and technology transformation initiatives.

The ideal candidate will have over 10 years of experience, strong knowledge of Java and cloud technologies, and a proven ability to lead architectural strategies aligned with business objectives. The role involves mentoring teams and ensuring compliance with best practices.

Qualifications

• 10+ years of IT experience with a strong background in Solution Architecture and Java development.
• Proven experience leading enterprise-wide architecture initiatives.
• Strong hands-on expertise in Java, Spring Boot, REST APIs, and Microservices architecture.

Responsibilities

• Develop and maintain enterprise solution architecture strategies aligned with business goals.
• Design scalable RESTful APIs and event-driven integration solutions.
• Lead technical risk assessments and mitigation planning.

Skills

Solution Architecture

Java

Spring Boot

Microservices

Cloud (AWS/Azure/GCP)

API Management

Docker

Kubernetes

CI/CD

Stakeholder Management

Education

Bachelor's or Master's degree in Computer Science or related field

Tools

AWS

Azure

GCP

Docker

Kubernetes

Job description

Job De ion/Key Requirement:

As a Lead Solution Architect, you will provide strategic technical leadership by defining enterprise-wide architecture, driving technology transformation initiatives, and ensuring alignment between business objectives and technology solutions. In addition to architecture leadership, you will remain hands-on with Java and Spring Boot development, contributing to the design and implementation of critical applications, APIs, and cloud-native services.

This role requires a strong blend of enterprise architecture expertise, stakeholder management, cloud technologies, and modern software engineering practices to deliver scalable, secure, and high-performing solutions.

Key Responsibilities

Strategic Architecture Leadership (70%)

• Develop and maintain enterprise solution architecture strategies aligned with business goals and technology roadmaps.
• Define target-state architectures and guide technology modernization initiatives.
• Lead architecture reviews, governance processes, and technical design decisions across multiple programs and teams.
• Create architectural roadmaps and standards for cloud adoption, microservices, API management, and system integration.
• Collaborate with business leaders, product owners, and executive stakeholders to translate business requirements into scalable technical solutions.
• Evaluate emerging technologies and recommend innovative solutions that improve business outcomes.
• Ensure architecture designs meet security, compliance, performance, reliability, and scalability requirements.
• Drive enterprise integration strategies across internal and external systems.
• Define and monitor architecture KPIs, technical debt management strategies, and continuous improvement initiatives.
• Lead technical risk assessments and mitigation planning.
• Provide architectural leadership during project delivery and production support activities.

Enterprise Solution Design

• Architect enterprise-grade applications using cloud-native and microservices-based architectures.
• Design scalable RESTful APIs and event-driven integration solutions.
• Define application, data, integration, and security architecture patterns.
• Lead cloud architecture design and implementation across AWS, Azure, or GCP environments.
• Ensure adherence to enterprise architecture principles and industry best practices.

Team Leadership & Mentorship

• Mentor solution architects, technical leads, and development teams.
• Facilitate architecture communities of practice and knowledge-sharing initiatives.
• Guide development teams on architectural standards, design patterns, and engineering best practices.
• Participate in technical hiring and capability development initiatives.

Hands-on Java Development (30%)

• Design, develop, and maintain enterprise applications using Java and Spring Boot.
• Build scalable microservices and REST APIs using modern Java frameworks.
• Contribute to application architecture, coding standards, and code reviews.
• Develop cloud-native solutions leveraging containerization and orchestration platforms.
• Implement secure coding practices and application security controls.
• Troubleshoot complex production issues and provide technical guidance to development teams.
• Collaborate with DevOps teams to implement CI/CD pipelines and automated deployment processes.
• Optimize application performance, scalability, and reliability.
• Participate in sprint planning, technical design discussions, and development activities for strategic initiatives.

Qualifications

• 10+ years of IT experience with a strong background in Solution Architecture and Java development.
• Proven experience leading enterprise-wide architecture initiatives and driving technology transformation programs.
• Strong hands-on expertise in Java, Spring Boot, Spring Cloud, REST APIs, and Microservices architecture.
• Extensive experience with cloud platforms such as AWS, Azure, or GCP.
• Deep understanding of API management, event-driven architecture, integration patterns, and security best practices.
• Experience with Docker, Kubernetes, CI/CD pipelines, and DevOps practices.
• Strong knowledge of relational and NoSQL databases.
• Demonstrated leadership experience mentoring architects, technical leads, and development teams.
• Excellent communication and stakeholder management skills with the ability to engage both technical and business audiences.
• Strong strategic thinking and problem-solving capabilities.
• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.