Total 309 Senior Executive mobile application developer job vacancies

You know that the integration architecture decisions made in week two of a project determine whether the support team can maintain the system for three years without calling the SI. If you build to that standard — reusable connections, governed error handling, documented deployment pipelines, clean technical handover — this is your programme.

ABOUT ROLLING ARRAYS

Rolling Arrays is a private equity-backed, award-winning HR Tech consulting firm — Asia Pacific's premium partner for enterprise HR digital transformation. Headquartered in Singapore and with offices across India, Malaysia, Australia, and Hong Kong, we have delivered more than 200 HR Transformation projects since our founding in 2009, and were recognised as one of Singapore's Top 100 fastest-growing companies in 2025. We specialize in SAP SuccessFactors, Oracle HCM, and Workday across the full delivery spectrum: HR process design and consulting (ALIGN), technology implementation (AUTOMATE), change management and adoption (ADOPT), and managed support services (AMS).

POSITION SUMMARY

RAC is seeking a Senior Interface Developer to lead the technical integration build workstream on Oracle HCM implementations. You will architect the OIC solution, define build standards, review developer deliverables, manage the deployment pipeline, and act as the technical integration authority for both the delivery team and the client IT architecture team.

WHAT YOU WILL DO

• Architect the OIC integration solution — designing the connection strategy, error handling framework, lookup table structure, and OIC Project organisation that governs the entire integration landscape for the programme
• Define and enforce integration build standards — naming conventions, mandatory components per integration, XSL mapping standards, and the deployment checklist that every integration must pass before environment promotion
• Build and review complex OIC integration flows — personally building the architecturally demanding integrations and reviewing junior developer builds for conformance to design specifications and build standards
• Own the deployment pipeline — designing the Dev to Test to UAT to Prod promotion strategy, managing integration versioning and rollback procedures, and externalising connection parameters for clean environment promotion
• Present integration architecture and status to client IT architects — explaining design decisions with rationale, maintaining the integration risk register, and facilitating discussions about Oracle's platform capabilities and limitations in the client's enterprise context
• Build the technical handover package — integration architecture documentation, error handling runbook, connection configuration guide, OIC monitoring and alerting setup, and the post-go-live support model for integration issues

WHY ROLLING ARRAYS

RAC's Oracle HCM programmes involve complex multi-country, multi-system integration landscapes. As Senior Interface Developer, you own the integration architecture, grow a team beneath you, and are a central voice in client enterprise architecture discussions — with a clear pathway to Oracle Practice Solution Architect.

OUR CULTURE CODE

Six values define how we operate every day at Rolling Arrays:

• Thinking Smart — spot patterns, chase smarter solutions, and illuminate the path to greater productivity
• Never Stop Learning — refine and elevate skills constantly; explore the world with a curiosity lens
• Being Nice to Everyone — treat everyone with genuine warmth and respect, regardless of seniority
• Be Super Patient with Customers — exercise patience and proactivity in every client interaction
• Help Your Teammates — share the load, lighten the stress, nurture a truly collaborative team
• Acknowledge Your Mistakes — embrace mistakes as steppingstones; grow from each one

WHAT WE'RE LOOKING FOR

• 4–5 years of Oracle Integration Cloud development experience with technical team leadership or architecture ownership on at least two live programmes
• Proven OIC solution architecture capability — has designed the connection strategy, error framework, and deployment pipeline for a multi-integration engagement, not just built individual flows
• Advanced XSLT, adapter, and fault handling capability — can build and review complex integrations and identify architectural issues in junior developer builds
• Has owned integration testing cycles and managed defect resolution to UAT sign-off
• Demonstrated technical documentation and handover capability — client IT teams can maintain the system post-go-live from the documentation you produce

PREFERRED QUALIFICATIONS

• Oracle Cloud Platform Application Integration 2025 Professional — the OIC certification; at Senior level this is an expected baseline credential, not a differentiator
• Oracle Cloud Infrastructure 2025 Foundations Associate or higher — OCI services (Streaming, ATP, Functions, API Gateway, Vault) are increasingly central to enterprise Oracle HCM integration architecture
• Oracle Global Human Resources Cloud Implementation Professional — Senior integration architects who hold Core HR certification can independently make data availability decisions without functional team escalation
• Oracle Visual Builder Cloud Service (VBCS) hands-on experience — for integration requirements that extend into custom Oracle-hosted UI development

BUSINESS & CONSULTING SKILLS

• Integration architecture authority — presents solution design decisions to client IT architects with technical credibility and defends them with rationale
• Build standards governance — defines and enforces naming, error handling, and deployment standards across a developer team without creating friction
• Technical handover ownership — produces documentation that client IT teams can maintain post-go-live; handover quality is a delivery outcome, not a nice-to-have
• Developer team leadership — reviews builds, identifies architectural issues, and develops junior OIC developers through structured feedback
• Integration risk communication — translates complex technical failures into business impact language for project leadership
• Commercial awareness — understands that every re-work cycle from a poorly specified build costs the programme time and margin

CAREER PROGRESSION

Senior Consultant → Lead Consultant → Solution Architect → Practice Lead

Job Description

• Design, develop, andmaintain scalable fullstack applications with a focus on performance,reliability, and security in a financial services environment.
• Collaborate with enterprisearchitects and business stakeholders to define system architecture, integrationpatterns, API specifications, and data flow designs.
• Own end-to-end deliveryacross the full SDLC: requirements analysis, technical design, development,code review, testing, deployment, and production support.
• Build and maintain RESTfulWeb APIs, backend services, and responsive frontend interfaces to supportlarge-scale internal platforms and portals.
• Integrate with third-partyplatforms and internal enterprise systems using established patterns(OAuth/OpenID, REST, event-driven architecture).
• Implement AI-assisted ordata-driven features (e.g. smart tagging, auto-summarisation, searchenrichment) to improve platform intelligence and usability.
• Champion code qualitythrough code reviews, performance optimisation, security best practices, andtechnical debt management.
• Contribute to sprintplanning, task estimation, and delivery governance in an Agile/Scrumenvironment.
• Mentor junior team membersand provide technical guidance to ensure consistent standards across the team.
• Produce clear solutiondocumentation including architecture diagrams, sequence diagrams, and APIspecifications.

Job Requirements

• 10+ years software engineering experience, with at least 5+ years in enterprise-grade fullstack development within regulated environments (e.g., banking, financial services, investment platforms).
• Strong backend expertise in C# and the .NET ecosystem (.NET Framework, .NET Core, .NET 8), including ASP.NET MVC, Web API, Entity Framework Core, and solid relational database experience with Microsoft SQL Server (mandatory) plus Redis for caching/session management.
• Advanced frontend capability in React with TypeScript, including state management using Redux or Redux Saga, and building scalable enterprise UIs using component libraries such as Ant Design, Kendo UI, or Telerik with strong HTML/CSS/JavaScript fundamentals.
• Hands-on DevOps and cloud experience covering Docker containerisation, CI/CD pipelines (Jenkins or GitHub Actions), Git-based source control, Agile practices (JIRA/Confluence), and AWS deployment services such as EC2 and S3.
• Proven ability to work in regulated enterprise environments, collaborating directly with enterprise architects and senior stakeholders to design and deliver scalable, production-grade technical solutions.
• Preferred skills include Kubernetes/OpenShift, AI/ML feature integration, blockchain/crypto domain exposure, technical leadership experience, Python, and legacy system modernisation initiatives.

Interested candidate please click "APPLY" to begin your job search journey and submit your CV directly through the official PERSOL job application platform - GO Mobile.

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 affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at https://www.persolsingapore.com/policies . You acknowledge that you have read, understood, and agree with the Privacy Policy.

PERSOL Singapore Pte Ltd

• RCB No. 200007268E • EA License No. 01C4394

• EA Personnel Reg.No. R23118145 (Siow Ee Sheng)

• To design, maintain and code components of the software application (Java and C++)
• To understand project requirements and constraints
• To lead the software development team
• To propose technical solutions to answer customer's requirements
• To ensure the build process of the application, and its deployment on Linux OS
• To test the software components
• To write the documentation related to the software (specifications, design, test description)
• To perform integration and packaging of the software before delivery
• To perform the maintenance of existing software
• To ensure the timely release of assigned project deliverables
• To provide accurate progress reports on assigned work
• To improve the software development workshop
• To troubleshoot possible bugs at network, operating system, software level

Responsibility : Domestic US / Fisher Price

Position Overview

We are seeking an exceptional Senior Programmer with extensive experience on IBM i (AS/400 / iSeries) systems, with a strong focus on COBOL development. The ideal candidate will play a key role in the integration, maintenance, and onboarding of existing and new customers as well as 3PL Distribution Centers (DCs) into our ERP platform OMNI.

This role requires deep technical expertise, strong understanding of EDI-driven processes, and close collaboration with business and project stakeholders.

Key Responsibilities

• Design, develop, enhance, and maintain COBOL applications on IBM i (AS/400 / iSeries)
• Integrate and support existing and new customers into the Mattel OMNI ERP system
• Implement and maintain interfaces for 3PL Distribution Center (DC) and Logistics
• Develop, support, and troubleshoot EDI integrations (inbound and outbound)
• Ensure system stability, data integrity, and performance across ERP and EDI processes
• Actively participate in weekly EDI functional meetings to align IT and business requirements
• Attend daily EDI project status meetings with the EDI Project Lead to communicate priorities, progress, and risks
• Collaborate closely with internal IT teams, EDI specialists, business users, and external partners
• Analyze requirements, provide technical solutions, and support go-live and post-implementation phases
• Document technical designs, interfaces, and operational procedures in SOP Documents

Required Skills & Experience

• Long-term, hands-on experience with IBM i (AS/400 / iSeries) environments
• Advanced expertise in COBOL programming
• Strong experience with ERP system integration, ideally within logistics or supply chain environments
• Proven experience integrating customers and 3PL DCs into enterprise systems
• Solid understanding of EDI standards and processes (e.g., orders, shipments, invoices)
• Ability to communicate effectively with both technical and non-technical stakeholders
• Strong analytical skills and a structured, solution-oriented mindset

• High level of reliability and accountability. Strong communication and coordination skills.  Proactive mindset with a focus on continuous improvement

Responsibility : International

Role Overview

We are seeking an exceptional and highly experienced IBM i (AS/400 / iSeries) Developer with deep expertise in RPG, ILE RPG, CL, DDS, IFS  - System-level and structured programming skills.
The role focuses on the integration, maintenance, and ongoing development of EDI Customer and 3PL Distribution Center (DC) environments within our ERP platform ISIS.

This position plays a key role in mission-critical EDI and logistics-related processes and requires close collaboration with international stakeholders, EDI specialists, and project leadership. The position require currently 2 Developer responsible for 5 Regions. 

Key Responsibilities

• Design, develop, enhance, and maintain EDI applications on IBM i (AS/400 / iSeries) platforms
• Develop and optimize solutions using RPG, ILE RPG, CL, IFS and SQL
• Perform system-level and structured programming following best practices for performance, stability, and maintainability
• Integrate and maintain existing and new customers within the ISIS ERP system
• Implement and support 3PL Distribution Center (DC) warehouse integrations
• Ensure seamless EDI process integration across customers, partners, and logistics providers
• Attend daily EDI project status meetings with project leadership to communicate priorities, progress, risks, and dependencies
• Analyze requirements, create technical concepts, and translate business needs into robust technical solutions – search the collaboration with Intl. Delivery Manager to align Processes and Solutions.
• Support production systems, troubleshooting, root cause analysis, and continuous improvement initiatives
• Collaborate with international teams across IT, EDI, logistics, and business operations

Required Skills & Experience

• Extensive hands-on experience as an IBM i / AS/400 / iSeries developer
• Strong mastery of RPG and ILE RPG
• Solid background in system programming IFS and structured programming methodologies
• Proven experience integrating EDI processes, customers, and logistics partners
• Knowledge of 3PL / warehouse / distribution center (DC) processes
• Strong understanding of database concepts (DB2 for i) and SQL
• Ability to work in complex, mission-critical, high-availability environments
• Excellent analytical, problem-solving, and documentation skills
• Fluent English communication skills (written and spoken)

Basic Knowledge of EDI standards (e.g., EDIFACT, ANSI X12)

Activate Interactive Pte Ltd (“Activate”) is a leading technology consultancy headquartered in Singapore with a presence in Malaysia and Indonesia. Our clients are empowered with quality, cost-effective, and impactful end-to-end application development, like mobile and web applications, and cloud technology that remove technology roadblocks and increase their business efficiency.

We believe in positively impacting the lives of people around us and the environment we live in through the use of technology. Hence, we are committed to providing a conducive environment for all employees to realize their full potential, who in turn have the opportunity to continuously drive innovation.

We are searching for our next team members to join our growing team.

If you love the idea of being part of a growing company with exciting prospects in mobile and web technologies that create positive impact on people’s lives, then we would love to hear from you.

This is a 1 year renewable contract role.

The successful candidate must be willing to relocate to our SINGAPORE office (with 1-2 months’ notice period). You will initially be stationed at our Kuala Lumpur office to begin with.

What will you do?

This role is responsible for developing, testing, and maintaining high-quality web applications. The role focuses on building scalable backend services with NodeJS and creating intuitive, performant front-end experiences with ReactJS. The developer will collaborate closely with architects, tech leads, and cross-functional teams to deliver business-critical applications that align with industry best practices and organizational goals.

• Develop and maintain applications using NodeJS and ReactJS.
• Collaborate with architects, leads, and business analysts to translate requirements into technical solutions.
• Write clean, maintainable, and efficient code following SOLID principles and coding standards.
• Develop and integrate RESTful APIs between backend and frontend systems.
• Ensure application scalability, performance, and security.
• Conduct unit testing, integration testing, and work with QA in test automation.
• Participate in code reviews, and continuous improvement initiatives.
• Troubleshoot and resolve application issues in development and production environments.
• Document relevant tasks.
• Stay updated with emerging technologies and recommend adoption where relevant.

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or equivalent.
• At least 5 years of hands-on experience in software development with NodeJS and ReactJS.
• Solid hand-on experience with JavaScript (ES6+), TypeScript, HTML5, CSS3.
• Relevant certifications in ReactJS, or cloud platforms are a plus.
• Demonstrated experience in delivering at least one end-to-end enterprise web application.
• Experience in working in Agile environments and collaborating across distributed teams.
• Knowledge of ORM, Web API, REST services.
• Familiarity with PostgreSQL or other relational databases.
• Familiarity with Redux / Context API for state management.
• Knowledge of Git / GitHub / GitLab for source control.
• Understanding of CI/CD pipelines (Azure DevOps, GitLab, or similar).
• Experience with Agile/Scrum methodologies.
• Basic understanding of cloud platforms (Azure / AWS) is a plus.
• Strong problem-solving and analytical skills.
• Effective communication skills (verbal and written).
• Ability to collaborate within cross-functional teams (designers, QA, DevOps).
• Self-motivated, proactive, and eager to learn new technologies.
• Attention to detail and commitment to delivering high-quality software.
• Ability to manage time effectively and work on multiple priorities.
• Applicant must be a Malaysian citizen.

What do we offer in return?

• Fun working environment
• Employee Wellness Program
• To work in Singapore Government Agencies projects
• We provide structured development framework and growth opportunities. (We are a “SHRI 2025 Gold winner” in “Learning & Development; Coaching & Mentoring”)

Why you'll love working with us?

If you are looking for opportunities to collaborate with leading industry experts and be surrounded by highly motivated and talented peers, we welcome you to join us. We provide all employees with equal opportunities to grow and develop with us. We believe your success is our success.

Does it sound like something you are interested in exploring further? Please be in touch with our team for an initial chat at 

Activate Interactive Singapore is an equal opportunity employer. Employment decisions will be based on merit, qualifications and abilities. Activate Interactive Pte Ltd does not discriminate in employment opportunities or practices on the basis of race, color, religion, gender, sexuality, national origin, age, disability, marital status or any other characteristics protected by law.

Protecting your privacy and the security of your data are longstanding top priorities for Activate Interactive Pte Ltd.

Your personal data will be processed for the purposes of managing Activate Interactive Pte Ltd’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results, and as is otherwise needed in the recruitment and hiring processes.

Please consult our Privacy Notice (https://www.activate.sg/privacy-policy) to know more about how we collect, use, and transfer the personal data of our candidates. Here you can find how you can request for access, correction and/or withdrawal of your Personal Data.