Total 328 Senior Executive mobile application developer job vacancies in Singapore

Job Title: Senior Software Developer (Enterprise Application Support & Delivery) – 12 Months Contract

Job Summary:
We are seeking a highly experienced Software Developer with a strong background in enterprise application delivery and production support within regulated environments. The role requires hands-on involvement across the full lifecycle, with a focus on maintaining and enhancing complex business-critical systems.

Key Responsibilities:

• Support and enhance enterprise-level applications in a production environment
• Participate in incident, problem, and change management processes
• Perform root cause analysis (RCA) and ensure timely resolution of issues
• Collaborate with stakeholders to gather and refine requirements
• Support UAT, deployment, and post-release validation activities
• Ensure compliance with security, audit, and operational standards

Requirements:

• Bachelor’s degree in IT / Computer Science or related field
• 10+ years of experience in software development and application support
• Proven experience in enterprise or government/regulated environments
• Hands-on experience with application support, not just development
• Familiar with Agile/Scrum delivery models
• Experience using enterprise tools (e.g., JIRA, ServiceNow, or equivalent)
• Strong experience in handling production issues and stakeholder management

☑ Good Bonuses

☑ Near MRT

☑ Family Friendly Environment

Job Description:

• Lead a team of developers to design, develop, and deliver high-quality software solutions aligned with product specifications and project timelines.
• Collaborate with solution architects to design scalable, secure, and maintainable systems using modern architectural patterns such as microservices and event-driven architectures.
• Establish and enforce development standards including coding practices, documentation, version control, testing, and code reviews to ensure high-quality deliverables.
• Act as the primary technical point of contact for stakeholders, supporting project planning, requirement analysis, system integration testing, and issue resolution.

Requirements:

• At least a diploma with 6 years software development experience.
• Strong Java expertise with Spring Framework and REST APIs.
• Experience with web, cloud, and DevOps tools (Angular/React, Docker, Kubernetes, CI/CD).
• Knowledge of microservices and messaging systems (Kafka, MQ, etc.).

To apply, please include the following details inside your CV for faster processing:

• Reasons for leaving each past & current employment
• Salary drawn for each past & current employment
• Expected Salary
• Earliest availability date

We regret that only short-listed candidates will be contacted shortly.

Loh Puay Hwee David

EA License | 24C2215

EA Registration Number | R1766892

☑ Good Bonuses

☑ Near MRT

☑ Family Friendly Environment

Job Description:

• Lead a team of developers to design, develop, and deliver high-quality software solutions aligned with product specifications and project timelines.
• Collaborate with solution architects to design scalable, secure, and maintainable systems using modern architectural patterns such as microservices and event-driven architectures.
• Establish and enforce development standards including coding practices, documentation, version control, testing, and code reviews to ensure high-quality deliverables.
• Act as the primary technical point of contact for stakeholders, supporting project planning, requirement analysis, system integration testing, and issue resolution.

Requirements:

• At least a diploma with 6 years software development experience.
• Strong Java expertise with Spring Framework and REST APIs.
• Experience with web, cloud, and DevOps tools (Angular/React, Docker, Kubernetes, CI/CD).
• Knowledge of microservices and messaging systems (Kafka, MQ, etc.).

To apply, please include the following details inside your CV for faster processing:

• Reasons for leaving each past & current employment
• Salary drawn for each past & current employment
• Expected Salary
• Earliest availability date

We regret that only short-listed candidates will be contacted shortly.

Loh Puay Hwee David

EA License | 24C2215

EA Registration Number | R1766892

Key Responsibilities

• Design, develop, and maintain full-stack applications using Java Spring Boot and React
• Build and optimize RESTful APIs and microservices
• Implement and maintain Micro Frontend (MFE) architectures
• Mentor junior and mid-level developers and conduct comprehensive code reviews
• Drive best practices across the entire technology stack
• Collaborate with cross-functional teams including DevOps, UX/UI designers, and product managers
• Troubleshoot complex production issues spanning frontend and backend
• Drive technical innovation and continuous improvement initiatives
• Participate in system design discussions and contribute to the technical roadmap

Required Backend Technical Skills

• Strong proficiency in Java (Java 17+) with deep understanding of core concepts
• Expert-level Spring Boot framework knowledge (Spring MVC, Spring Data, Spring Security, Spring Cloud)
• Solid understanding of microservices architecture patterns and best practices
• Experience with relational databases (MariaDB) and SQL optimization
• Strong knowledge of RESTful API design principles
• Experience with message queues (Kafka, IBM MQ, or equivalent)
• Unit and integration testing (JUnit, Mockito, Karate)
• Strong understanding of design patterns and SOLID principles

Required Frontend Technical Skills

• Expert-level TypeScript/React 18+ experience with deep understanding of hooks, context, and component lifecycle
• Strong Redux and Redux Toolkit (RTK) proficiency for state management
• RTK Query for efficient data fetching and caching
• Micro Frontend (MFE) architecture design and implementation (Module Federation, Single-SPA, or similar)
• Advanced HTML5 and semantic markup
• Expert-level CSS3 including Flexbox, Grid, and responsive design
• CSS-in-JS solutions (Styled Components, Emotion)
• Modern JavaScript/TypeScript (ES6+)
• Frontend build tools (Webpack, Vite, or similar)
• Frontend testing frameworks (Jest, React Testing Library, Cypress, Playwright)
• Performance optimization techniques (code splitting, lazy loading)

Architecture Design Skills

• Microservices and Micro Frontend architecture patterns
• API design and integration patterns
• Distributed systems and caching strategies
• Security best practices (OAuth, JWT, CORS, XSS, CSRF prevention)
• Scalability and performance optimization
• Domain-driven design (DDD)

Additional Technical Experience

• Cloud platforms (PCF, AWS, OCP)
• Containerization (Docker) and orchestration (Kubernetes)
• CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions)
• Event-driven architecture
• Design systems and component libraries (Storybook)
• Monitoring and observability tools (Prometheus, Grafana, ELK stack, Sentry)
• Performance profiling and optimization (Lighthouse, Web Vitals).
  
  EA Number: 11C4879
  

We are lookig for an Application Engineer to join our technical execution and bridge the gap between sales and delivery. In this role, you will not only learn to design and implement cutting-edge Energy Management (EMS) and Power Quality (PQM) systems but also transform project workflows into streamlined, high-quality engineering outputs.

You will report to the Director of Engineering and play a critical role in digitalising our project delivery process.

Key Responsibilities:

The Application Engineer is responsible for delivering projects and liaising with clients to deliver customised solutions.

• Project planning, coordination, and execution.

• Design and integration of automation systems according to project requirements.

• Graphical design of the electrical network.

• Plan installation schedule with client and installer.

• Testing and commissioning of systems.

• Preparation of project documents and drawings.

• Offsite/onsite Maintenance Contract support.

Candidates should be able to work independently and as team players on simultaneous projects with compressed timelines. Candidates should also expect limited travel to interface with customers and attend or exhibit at conferences and trade shows.

Requirements:

• A candidate with a minimum & relevant engineering certification e.g. Degree, in the Engineering field (Electrical or Power and automation) is preferable.

• Experience/knowledge in HVAC, SCADA, PLC, and HMI in a Building Management System, Power Quality Management System, or Energy Management System.

• Knowledge of data communication and automation systems for electrical networks.

• Knowledge and experience in IT networking and server/VM setup are an added advantage.

• Knowledge and experience in Power Quality Meter and Power Quality Monitoring Systems is a plus.

• Required skill(s): Microsoft Office, Savvy in various computer skills such as computer networking, setting up new PC/VMs, and knowledge of electrical systems.

• Mature and able to handle tasks independently, result-oriented, and self-driven team player with good communication skills.

• Good personality, responsible, hardworking person.

• Fast learner and good soft skills.

• Ability to work as a team, lead and supervise the contractors.

• Experience in people and team management in administrative and functional aspects.

• Process excellent team spirit and good leadership.

• Fresh grade are welcome to apply the position.

• 1 Full-Time position(s) available.

• Salary will be commensurate based on experience

What We Offer:

• Competitive salary and benefits package.

• Opportunity to work on cutting-edge technology projects.

• Collaborative and innovative work environment.

• Professional development and growth opportunities.

About Client:

Our client is an Reputed MNC

Responsibilities:

• Design, develop, and maintain scalable Java/Python applications.
  Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the performance, quality, and responsiveness of applications.
  Conduct code reviews and adhere to best practices in software development.
• Troubleshoot and resolve technical issues as they arise.
  Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Involve all aspects of the software life cycle including gathering requirements from the business, analysis of existing systems/functionality, design and implementation, all the way through to production roll out and subsequent support

Skills/Requirement:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• Proven experience as a Fullstack Developer with a focus on Java/Python.
• Minimum 6+ Years of experience in Java development.
• Proficiency in Java, Spring Boot, and Hibernate.
• Experience with front-end frameworks such as React.js or Angular.
• Strong understanding of databases including MySQL, PostgreSQL, or MongoDB.
• Familiarity with version control systems, preferably Git.
• Experience with cloud platforms such as AWS or Azure is a plus

Interested candidates, who wish to apply for the above position, please send in your resume to lakshmi.prasanna@persolapac.com

We regret to inform that only shortlisted candidates will be contacted

PERSOL Singapore Pte Ltd
EA License No. 01C4394
EA Reg No: R1551772 (Kankanala Lakshmi Prasanna)

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This is in partnership with Employment and Employability Institute Pte Ltd (“e2i”). e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to e2i’s PDPA.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd and its local and overseas subsidiaries and affiliates collecting, using and disclosing your personal data to prospective employers/companies based in any country for purposes of evaluating suitability for employment, conducting reference checks, administering employment related services and such other purposes stated in our privacy policy. Our full privacy policy is available at www.persolapac.com. If you wish to withdraw your consent, please drop us an emailto let us know. Please feel free to contact us if you have any queries.

All parties involved in any form of workforce engagement are to strictly adhere to prevailing regulations and laws that govern local fair employment practices, and to invest reasonable efforts in building a strong Singaporean core workforce, recruit and select candidates based on merit and prohibit discrimination based on age, race, gender, religion, marital status and family responsibility or disability. For more information, please refer to MOM and TAFEP websites.

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Gen AI Data Science

Primary Skills - prompt Eng , tuning, rag, evaluations, NLP, transformer, encoder decoder arch, observability, llmops, frameworks Lang chain, Lang graph, Python, similar stuffs, Data Science, Algorithms & Recommendation Modelling.

Responsibilities

Apply Generative AI technology to implement highly scalable solutions to solve real world problems

Build solutions from collecting training data set, analyzing data, to modelling to validating, and to delivering production grade solutions at scale

Drive both high level and detailed technical designs and conduct design reviews as needed

Responsible for health and quality of the code across the portfolio, including leadership over innovation, functional testing and CI/CD tool integration

Actively participate in business and technical discussions, and forums across Amex

2+ years full lifecycle machine learning application product development experience

2+ years of experience in building and delivering sophisticated solutions, that leverage various AI solutions, machine learning algorithms, or technologies and are able to scale optimally

Job Summary

Develop and optimize Java-based applications using Core Java, Spring Boot, and related technologies to deliver robust software solutions. Collaborate on database management, messaging systems, and web services to enhance application performance and reliability.

Responsibilities

• Develop and maintain applications using Core Java 8+ and JUnit to ensure high-quality code and automated testing
• Implement and optimize messaging solutions using Kafka and Java Messaging concepts (JMS, MQ, RTPM) for reliable data exchange
• Design and build backend services with Spring Boot and apply Spring core concepts to support scalable applications
• Manage project builds and dependencies using Maven to streamline development workflows
• Write and optimize SQL queries, including joins, indexes, and triggers, to improve database performance and data retrieval
• Utilize relational database concepts to design efficient data models and support application requirements
• Develop and consume REST and SOAP web services to enable integration with external systems
• Apply basic Linux shell scripting commands to automate routine tasks and support development environments
• Use development tools such as IntelliJ, Git, and SonarQube/SonarLint to maintain code quality and version control

Preferred competencies and qualifications

• Knowledge of JBOSS or other application servers to support deployment and runtime environments
• Experience with Java Server Faces, JPA, and EJB to develop rich user interfaces and manage persistence
• Ability to write and understand complex SQL queries for advanced data manipulation
• Familiarity with Kafka for event streaming and messaging beyond core usage
• Exposure to React JS for front-end development to complement backend services

• Design, develop, test, and maintain applications on AS400 / IBM i platform.
• Develop and enhance programs using COBOL/400, CL, and DB2.
• Support Core Banking, Payments, Wealth Management, Insurance, and Mortgage applications.
• Own end-to-end delivery including development, testing, deployment, and production support.
• Collaborate with business, operations, and technology stakeholders to deliver solutions.
• Perform impact analysis, effort estimation, and technical design documentation.
• Manage production issues, root cause analysis, and resolution.
• Work in multi-country, multi-team environments supporting global banking platforms.
• Ensure compliance with regulatory and security standards.
• Participate in system optimization, performance tuning, and platform modernization initiatives.
• Support release management and change management processes.

Job description

Responsibilities and Duties

• Review current systems architecture, coding methodology and language platforms

• Present ideas for system improvements, including architectural and functional proposals

• Work closely with product owners, sales and operations team to understand areas that may require improvements, fixes, and/or upgrades

• Produce detailed specifications, review code, and develop versions for the applications

• Test the product in controlled environments before releasing to operations sections for functional, regression and usability testing

• Preparation of user, installation, release notes and training manuals

• Maintain the systems and fix of software bugs and incompatibilities, implement new functionality, upgrade releases, implement regulatory compliance changes etc.

Qualifications

• Education level: diploma or certificate desired.

• Experience: 4 years of software development or related experience. Casino system/product experience is desired, but not mandatory.

• Specific Language Skills: C, C++, Java, SQL

• Other Characteristics/Requirements: expertise in current computer hardware and software, strong communications skills, ability to work in a team, attention to detail and ability to identifying problems

• Spoken and Written Languages: English required

Responsibilities

• Develop and maintain applications using Core Java 8+ and JUnit to ensure robust and tested code
• Implement messaging solutions using Java Messaging concepts (JMS, MQ) and Kafka for reliable data exchange
• Design and optimize SQL queries and relational database structures including joins, indexes, and triggers to improve performance
• Build and consume REST and SOAP web services to enable system integrations
• Apply Spring Boot and Spring core concepts to develop scalable backend services
• Use Maven to manage project builds and dependencies efficiently
• Execute basic Linux shell scripting commands to automate routine tasks and support deployment
• Utilize development tools such as IntelliJ, Git, and SonarQube/SonarLint to maintain code quality and version control

Preferred competencies and qualifications

• Operate JBOSS or other application servers to deploy and manage Java applications
• Develop user interfaces and persistence layers using Java Server Faces, JPA, and EJB technologies
• Write and interpret complex SQL queries to support advanced data operations
• Work with Kafka for event streaming and messaging
• Use React JS to build interactive front-end components

Job Description:

• Master or Bachelor’s degree in Computer Science/ Information Technology/ Programming & Systems Analysis/ Science (Computer Studies) faculties.
• 8+ years of hands-on experience with Microsoft Business Intelligence Tools, Power BI Desktop, Power BI Service, and Power BI Report Server.
• Advanced DAX and Power Query (M) development; experience with row-level security (RLS), incremental refresh, and deployment pipelines.
• Proficient in SQL Server Reporting Services (SSRS) report development and SQL Server Integration Services (SSIS) package design and maintenance.

Requirements:

• Proficient in writing, tuning, and optimizing complex SQL queries; strong knowledge of database engine internals and query execution plans.
• Practical experience with .NET (C# preferred) for BI tooling, custom connectors, or data workflow components.
• Stakeholder Management/ Collaboration - Collaborate with project manager/Product Owner, business analyst, and infrastructure teams to gather and analyze the requirements & work on incident resolution.
• Proven experience working in Agile development environments (JIRA Scrum, Kanban).
• Experience in Control-M configuration & management.
• Familiarity with AWS data services (S3, Redshift, Glue, or equivalent)
• AI Proficiency.
• Demonstrated ability to effectively utilize AI-powered tools (e.g., GitHub Copilot) to enhance productivity and problem-solving capabilities.
• Understanding of AI/ML fundamentals including prompt engineering, model limitations, and best practices for human-AI collaboration.
• Experience in evaluating AI-generated outputs for accuracy, security, and alignment with business requirements.
• Ability to identify opportunities for AI integration and automation within existing workflows and processes.

• At least 10 years of development experience using Java/J2EE, BPM, Spring, Spring Boot, and Angular
• Hands on experience in designing and developing applications using Java EE platforms
• Object oriented analysis and design using common design patterns.
• Profound insight of Java and JEE internals
• Experience in developing web applications using Struts, Spring MVC, EJB, Angular, Servlet, EJB, JSP, Ajax, JQuery, XML, HTML, CSS, and JavaScript
• Excellent knowledge of Relational Databases, PL/SQL. Experience in Oracle preferred.
• Excellent knowledge of ORM technologies (Toplink/Hibernate)
• Sound knowledge in Cloud Platforms (AWS, Azure & GCP)
• Experience in Trading applications with FIX protocol and Banking domain.
• Interact with product owner and business to understand new requirements and demo changes iteratively.
• Participate in solution design and collaborate with team for code reviews and design
• Develop components for highly customizable user interface that supports multiple products.
• Ensure a smooth transition to the Support team when a project is delivered to production, training and assist with investigations of production issues.

Role Interaction Points

• Interacts with the Technical Lead, BAs and testers for the project during the project lifecycle
• Interacts with the Client managers for status review meetings
• Ability to work on multiple tasks concurrently

Others

• Should possess good communication and problem solving skills
• Should have Aptitude and Attitude of learning and mastering new technologies and tools
• Working in client facing environment is a plus
• Working in Agile Methodology is a plus

Responsibilities:

• Lead the design, development, and maintenance of scalable backend systems, microservices, and RESTful APIs.
• Collaborate with product managers and frontend teams to deliver fit-for-purpose digital solutions aligned with business and IT strategy.
• Ensure backend systems are secure, reliable, and optimised for performance.
• Drive technical discussions, make architectural decisions, and review code to ensure adherence to best practices and standards.
• Act as a mentor to junior developers, fostering a culture of continuous improvement and knowledge sharing.
• Manage system integrations across internal and third-party platforms
•  Contribute to DevOps processes and CI/CD pipelines to support rapid and safe software delivery.
• Document key design decisions, system workflows, and technical specifications.
• Support production systems, troubleshoot issues, and ensure uptime and resilience.

Requirements:    

•  Bachelor’s Degreein Computer Science, Engineering, or a related field.
•  4 years of hands-on backend development experience in enterprise or cloud-native applications.
•  Proficient in Java Spring Boot.
• Solid experience with microservices architecture, RESTful APIs, and message queues (e.g.Rabbit MQ).
• Expertise in database architecture and performance tuning across SQL, NoSQL, and Caching layers (e.g., PostgreSQL, MongoDB, Redis).
• Experience working with Angular in enterprise applications

Interested applicants, please Email , and look for

Jensen Fang Lifa

Recruit Express Pte Ltd

EA License No. 99C4599

EA Personnel Registration Number: R2197080

We regret that only shortlisted candidates will be contacted.

Technical & Development

• Design, develop, and maintain enterprise-grade applications using C#, ASP.NET Core (MVC).

• Translate business and functional requirements into technical and design specifications (logical and physical).

• Design and implement RESTful APIs and backend services using ASP.NET Core.

• Define application architecture, integration approaches, and coding standards.

• Ensure code quality, performance, security, and scalability through hands-on development and reviews.

• Perform troubleshooting, root-cause analysis, and continuous system improvements.

Technical Leadership

• Act as a technical point of reference for the team.

• Review designs and code, and provide clear technical direction.

• Mentor junior developers and guide best practices.

• Support estimation, impact analysis, and technical decision-making.

• Collaborate closely with BA, QA, infrastructure, and stakeholders.

Requirements

Education & Experience

• Bachelor’s Degree in Computer Science, IT, or equivalent.

• 5+ years of hands-on .NET development experience.

• Proven experience delivering multiple full project lifecycles.

• Prior experience acting as a Senior Developer, Lead Developer, or Technical Lead is highly preferred.

Technical Skills – Must Have

• Strong proficiency in C# and ASP.NET Core (MVC).

• Solid understanding of OOP principles and design patterns.

• Hands-on experience designing and building RESTful APIs.

• Experience producing technical and design specifications.

• Strong SQL skills and understanding of database design.