Technical Delivery Lead: Java 21 Plus Spring Reactive

Factorial Solutions Pte. Ltd.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Factorial Solutions Pte. Ltd.

in Singapore is seeking a Technical Delivery Lead to own end-to-end delivery of technology products, providing engineering leadership across solution implementation, software quality, technical debt, dependencies, releases and production readiness. The role requires strong hands-on Java development and Spring Reactive capabilities, and the ability to lead engineering execution.

Qualifications

• Hands-on Java 17+ and Spring WebFlux
• Experience building RESTful APIs and microservices
• Reactive programming with Project Reactor and WebClient
• Experience with SAFe/Agile delivery is a plus

Responsibilities

• Provide technical direction and be the primary technical contact for engineering delivery
• Translate requirements into robust, scalable software designs and implementations
• Review approaches, code, and testing strategies to ensure quality
• Collaborate with Solution Architects on design decisions and architecture
• Lead planning, estimation, and cross-team dependency management
• Ensure release readiness, environments, and production support

Skills

Java development

Spring Reactive Programming

Spring Boot

Spring WebFlux

Project Reactor

WebClient

Spring Security (Reactive)

Non-blocking programming

CI/CD

Git

Docker

Kubernetes

Web services/microservices

SAFe/Agile

Tools

Spring Boot

Spring Cloud

Kafka

Git

Job description

The Technical Delivery Lead is accountable for the end-to-end technical delivery of technology products and capabilities,

providing engineering leadership across solution implementation, software quality, technical debt, dependencies,

releases and production readiness. The role works closely with Product, Business, Architecture, Engineering and other

technology stakeholders to ensure delivery is predictable, high quality and production-ready. The role requires strong

hands-on expertise in Java development and Spring Reactive Programming, alongside the ability to lead engineering

execution and delivery.

Key Responsibilities

Technical Leadership & Engineering

• Provide technical direction to engineers and act as the primary technical point of contact for engineering delivery.
• Guide engineers in translating requirements and agreed solution designs into robust, scalable, secure and maintainable software.
• Review technical approaches and code; provide constructive challenge and pragmatic recommendations.
• Partner with Solution Architects on design decisions and ensure the agreed architecture is implemented effectively.
• Establish engineering standards and promote sound practices for version control, code reviews, testing, environment management and deployment.

End-to-End Delivery & Agile Execution

• Own engineering delivery from requirements through development, testing, release and production.
• Drive delivery planning, sprint execution, estimation, milestone tracking and forecasting.
• Support backlog refinement, sprint planning and execution; contribute engineering input to SAFe PI Planning where applicable.
• Identify and manage technical blockers, risks, issues and cross-team dependencies early, driving them through to resolution.
• Balance scope, quality, technical debt, risk and timelines with Product and other stakeholders; communicate status and trade-offs clearly.

Engineering Quality, Testing & Production Readiness

• Own technical health, including code quality, maintainability, reliability, performance, supportability and technical debt.
• Promote a strong testing culture, including unit, integration and automated testing, with TDD/BDD practices using tools such as JUnit, Mockito and Cucumber.
• Coordinate release activities across development, testing, environments, CI/CD, deployment and operational readiness.
• Ensure production-readiness documentation, monitoring, support arrangements and release-risk mitigations are in place.
• Review post-release outcomes, address recurring technical issues and turn lessons learned into lasting improvements.

Stakeholder & Cross-Team Collaboration

• Work closely with Product Owners/Managers, Business Analysts, Solution Architects, software engineers and technology/operations teams.
• Translate business requirements into engineering considerations, delivery plans and realistic commitments.
• Coordinate cross-team decisions and dependencies; elevate issues with clear options and recommendations.
• Provide transparent updates on delivery progress, technical constraints, risks and trade-offs to technical and non-technical stakeholders.

Required Technical Skills & Experience

Java Development & Spring Reactive Programming (Critical)

• Java 17 or later; Java 21 preferred.
• Strong hands-on experience with Spring Boot and development of RESTful APIs and microservices.
• Spring WebFlux and reactive application development.
• Project Reactor, including Mono, Flux and Reactive Streams concepts.
• WebClient for reactive REST API integration, including error handling, timeout management and retry mechanisms.
• Spring Security (Reactive), including OAuth2, JWT and reactive security configuration.
• Strong understanding of non-blocking and asynchronous programming, reactive exception handling, and the appropriate use of reactive patterns.

API, Microservices & Data

• Experience designing, developing and supporting RESTful APIs and microservices using Spring Boot and Spring Cloud.
• Working knowledge of relational databases (RDBMS) and NoSQL data stores.
• Understanding of API security, resilience, maintainability, performance and production support.

Testing, DevOps, Cloud & Engineering Tools

• Strong software testing culture and practical experience with TDD/BDD, JUnit, Mockito and Cucumber.
• Git or equivalent code version control, code review practices and sound branching/release approaches.
• Working knowledge of CI/CD, Docker and Kubernetes.
• Basic familiarity with cloud platforms and services such as Kubernetes and API Gateway.
• Basic familiarity with event-bus or streaming platforms, particularly Confluent Kafka.
• Understanding of environment management, release management, deployment methodologies and production support.

Delivery Leadership & Candidate Profile

• Typically 5–8 years of back-end development experience, with strong Java/Spring engineering expertise.
• Proven experience leading engineering teams and delivering complex technology products or projects end-to-end.
• Strong understanding of modern software engineering practices, automated testing, CI/CD and engineering quality.
• Experience with Agile methodologies such as Scrum and Kanban; SAFe and PI Planning exposure highly desirable.
• Demonstrated ability to manage technical debt, code quality, production readiness, risks and cross-team dependencies.
• Strong stakeholder management, communication, collaboration and influencing skills.
• Ability to make pragmatic trade-offs between business needs, engineering quality, risk and timelines.