Total 6 Full-time java developer job vacancies

Essential Responsibilities:

·       Take end-to-end ownership of company's existing fiat/payment backend, ensuring stable operation and fast iteration during platform scaling.

·       Participate in backend service development, ensuring system security and high availability.

·       Communicate with stakeholders to understand requirements, support business development, and drive service launches.

·       Continuously optimize system architecture and tackle key technical challenges.

·       Understand product workflows and leverage technology to drive business growth.

Requirements

·       5–10 years of backend engineering experience in production systems; strong preference for candidates who have owned and evolved an existing platform (not only built new services).

·       Hands-on experience building or operating fiat payment systems such as on/off-ramps, bank transfers, card payments, ACH/wire/SEPA/FPS/PayNow, or local rails.

·       Familiar with payment lifecycle: authorization → capture/settlement →refunds/chargebacks → reconciliation.

·       Practical knowledge of risk controls & compliance touchpoints, e.g., KYC/AML hooks, fraud/rule engines, transaction limits, sanctions screening, audit trails.

·       Experience with ledgering / balance accounting and reconciliation pipelines (especially for high-volume flows).

·       Lead a structured technical handover from BB engineering, including architecture understanding, codebase absorption, and operational runbooks.

·       Understanding of common Java design patterns and the ability to apply them appropriately.

·       Proficiency with mainstream Java frameworks and tools, such as Spring Boot, Spring Cloud, Spring MVC, etc.

·       Familiarity with database principles and optimization strategies; strong SQL skills; understanding of caching, messaging queues, and related technologies.

·       Experience integrating with PSPs / banks (e.g., Stripe/Adyen/Checkout.com/local banks or processors) is a plus.

·       Understanding of PCI-adjacent security practices and sensitive data handling is a plus.

·       Strong sense of ownership for software products, with good communication skills and excellent teamwork.

All Successful candidates can expect a very competitive remuneration package and a comprehensive range of benefits.

Alternatively, you may wish to email your resume in a detailed Word format to debbie@peopleprofilers.com

We regret that onlyshortlisted candidates will be notified

People Profilers Pte Ltd, 20 Cecil Street, #08-09 PLUS Building, Singapore 049705

 Tel: 69509748

http://www.peopleprofilers.com

debbie@peopleprofilers.com

Consultant in charge: So Boon Shyen, Debbie

EA Licence Number: 02C4944

Registration Number: R1111376

We are seeking an experienced Senior Fullstack Developer to join a high-impact engineering team delivering enterprise-grade platforms for a leading financial services organisation. The successful candidate will contribute to the full software development lifecycle— from solution design and development through to deployment and production support — while working closely with enterprise architects, business stakeholders, and cross-functional teams.

This role suits a technically strong engineer with deep fullstack expertise who can operate independently, communicate effectively with non-technical stakeholders, and contribute meaningfully to architecture and integration decisions in a complex, regulated environment.

KEY RESPONSIBILITIES

• Design, develop, and maintain scalable fullstack applications with a focus on performance, reliability, and security in a financial services environment.
• Collaborate with enterprise architects and business stakeholders to define system architecture, integration patterns, API specifications, and data flow designs.
• Own end-to-end delivery across 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 support large-scale internal platforms and portals.
• Integrate with third-party platforms and internal enterprise systems using established patterns(OAuth/OpenID, REST, event-driven architecture).
• Implement AI-assisted or data-driven features (e.g. smart tagging, auto-summarisation, search enrichment) to improve platform intelligence and usability.
• Champion code quality through code reviews, performance optimisation, security best practices, and technical debt management.
• Contribute to sprint planning, task estimation, and delivery governance in an Agile/Scrum environment.
• Mentor junior team members and provide technical guidance to ensure consistent standards across the team.
• Produce clear solution documentation including architecture diagrams, sequence diagrams, and API specifications.

MANDATORY REQUIREMENTS

Experience

• 10+ years of professional software engineering experience, with at least 5 years in fullstack development within enterprise or regulated environments.
• Demonstrated experience delivering production-grade platforms for financial services, investment, or banking organisations.
• Proven track record of working directly with enterprise architects and senior business stakeholders to define technical solutions.

Backend

• Strong proficiency in C# and the .NET ecosystem — .NET Framework, .NET Core, and .NET 8 — includingASP.NET MVC and Web API.
• Solid experience with Entity Framework Core and ORM-based data access patterns.
• Working knowledge of Redisor equivalent in-memory caching and session management.
• Hands-on experience with relational databases: Microsoft SQL Server (required); PostgreSQL or Oracle(advantageous).

Frontend

• Proficient in React with TypeScript, including state management using Redux or Redux Saga.
• Experience building responsive, accessible enterprise UIs using component libraries (Ant Design, Kendo UI, Telerik, or similar).
• Strong grounding in core web technologies: HTML, CSS, JavaScript/TypeScript.

DevOps & Cloud

• Practical experience with Docker for containerisation and CI/CD pipeline tooling (GitHub Actions, Jenkins, or equivalent).
• Hands-on cloud deployment experience, preferably on AWS (EC2, S3, or equivalent services).
• Familiarity with source control best practices using Git/GitHub; experience with Agile tooling (JIRA, Confluence).

PREFERRED QUALIFICATIONS

• Experience with Open Shift or Kubernetes for container orchestration in enterprise environments.
• Exposure to AI/ML feature integration — e.g. natural language processing, smart tagging, automated summarisation, or embedding-based search — within production applications.
• Prior experience in a Technical Lead or offshore team coordination role, including delivery governance and stakeholder reporting.
• Familiarity with blockchain platforms or cryptocurrency exchange ecosystems (DeFi, KYC/AML workflows, wallet infrastructure).
• Experience with cross-platform desktop application development (e.g. Electron).
• Knowledge of Python for data processing, scripting, or backend automation tasks.
• Exposure to legacy system modernisation or migration projects within regulated industries.
• Master's degree in Business Information Systems, Computer Science, or a related discipline.

We regret that only shortlisted candidates will be notified

Interested applicants please send your updated resume to noga.lim@peopleprofilers.com

Noga Lim Wei Loong
Registration Number: R1329872
EA License Number: 10C3804
Contact Number: 6950 9728
People Profilers Pte Ltd, 20 Cecil St, #08-09, PLUS Building, Singapore 049705
http://www.peopleprofilers.com

Key Responsibilities

• Implement responsive, high-performance user interfaces using React, TypeScript, and modern front-end tooling.

• Develop and maintain front-end applications, including low-code or visualization platforms, AI portals, and document authoring tools.

• Integrate REST APIs, WebSockets, and SSE for real-time data updates and live dashboards.

• Optimize front-end performance for large-scale data rendering (e.g., 10,000+ live-updating data points).

• Provide production support, debugging, and hotfixes for deployed applications.

• Write and maintain technical documentation for components, frameworks, and integration patterns.

• Collaborate with back-end and AI/ML teams to integrate LLMs, RAG pipelines, and agent workflows into front-end experiences.

• Build or extend hybrid mobile applications (Cordova-based) and Office.js add-ins as needed.

• Maintain and improve shared component libraries and reusable widget frameworks.

Required Qualifications

• 5+ years of front-end development experience, with at least 2 years in a technical leadership or senior individual contributor role.

• Expert-level proficiency in React, TypeScript, and Node.js.

• Strong experience with data visualization libraries (ECharts, D3.js, Three.js, Leaflet).

• Proven experience building AI-integrated front-end applications (LLMs, RAG, AI agents, LangChain/LangGraph, AG-UI).

• Experience developing hybrid mobile frameworks (Apache Cordova) and deploying to iOS/Android.

• Hands-on experience with Office.js (e.g., Word Add-ins for AI-assisted authoring).

• Strong understanding of API integration (REST, WebSockets, SSE, OAuth 2.0).

• Ability to optimize rendering performance under real-time, high-data-volume conditions.

• Experience writing technical documentation and supporting production systems.

• Familiarity with CI/CD pipelines, Docker, and cloud platforms (Alibaba Cloud, Azure).

Preferred Qualifications

• Experience building low-code or drag-and-drop visualization platforms.

• Background in IoT or AIoT platforms with large-scale device management.

• Knowledge of LangGraph, MCP servers, or Claude Skills.

• Experience with Java (Spring) or Python for basic back-end understanding.

• Startup or founding experience (CTO or co-founder level) is a plus.

Responsibilities

• Participate in backend system development and independently complete the design and implementation of system modules.

• Contribute to early-stage requirement analysis, gain an in-depth understanding of business architecture and needs, and design, implement, and test system features according to product requirements, including writing technical analysis documentation.

• Continuously improve development efficiency.

• Manage system releases and production deployment; ensure day-to-day system stability by improving monitoring and alerting, and promptly handling production issues.

• Analyze system bottlenecks and continuously enhance and upgrade existing systems to build scalable, high-concurrency, high-availability, and low-latency services that effectively support fast-growing business needs.

• Plan and drive the evolution of system technologies and architecture.

Requirements

• Bachelor’s degree or above in Computer Science, Software Engineering, or related fields, with a strong foundation in computer science fundamentals.

• 3–5 years of software development experience.

• Proficient in Golang or Java, with hands-on experience using mainstream development and testing frameworks; experienced with MySQL, Kafka, Redis, and other common middleware, with a solid understanding of their underlying principles and optimization techniques.

• Strong programming fundamentals, clean coding practices, and deep understanding of the technologies and architectures used.

• Experience building high-concurrency, high-performance systems or working on middleware and foundational platform components is a strong plus.

• Experience with multiple programming languages and growth-focused product development is preferred.

Responsibilities

• Work closely with stakeholders to understand business requirements, create technical solutions and system designs, and lead delivery to achieve business objectives.

• Plan, develop, and optimize shared technical components, and drive their adoption across multiple business systems.

• Identify system bottlenecks, solve complex technical problems, and continuously improve system performance and reliability.

• Research and evaluate emerging technologies and industry solutions to strengthen platform capabilities and innovation.

Job Requirements

• Bachelor's degree or higher in Computer Science or a related field.

• 3+ years of backend development experience, including at least 2+ years working with Golang in architecture or system design roles.

• Strong proficiency in Golang, including commonly used frameworks, core language features, and data structures, with a deep understanding of underlying implementation principles.

• Solid experience in API development and concurrency concepts, with exposure to building and maintaining high-concurrency systems.

• Familiarity with distributed systems, mainstream service frameworks, and messaging middleware, with an understanding of their underlying principles.

• Experience designing, building, or operating systems using serverless architecture (e.g., AWS Lambda, Google Cloud Functions, or Azure Functions).

• Strong logical thinking and business understanding, with good coding practices, clear structure, and standardized naming conventions.

• Experience with Docker, Kubernetes automation, or DevOps implementation is a plus.

• Experience with blockchain toolstacks or blockchain system interaction is a plus.

Responsibilities

• Collaborate with Product Managers and Designers to translate UX flows and design prototypes into accurate, pixel-perfect, and reusable frontend components.

• Build, test, and maintain high-quality front-end applications using React and modern JavaScript/TypeScript best practices.

• Develop and maintain responsive web interfaces for blockchain/crypto product features such as onboarding, wallets, trading flows, account management, and dashboards.

• Integrate front-end systems with backend services via REST APIs/WebSockets, ensuring stable data flow, secure handling, and graceful error management.

• Optimize application performance and user experience, including load speed, rendering efficiency, responsiveness, and cross-browser compatibility.

• Contribute to a scalable front-end architecture, shared UI libraries, and consistent design-system implementation.

• Participate in code reviews, write clean and maintainable code, and produce clear technical documentation.

• Troubleshoot production issues, monitor UI performance, and continuously improve reliability and usability.

• Stay current with front-end trends and explore new tools/frameworks to improve development efficiency and product quality.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).

• 3+ years of hands-on front-end development experience with React and Node.js in real production environments.

• Strong command of front-end fundamentals: HTML5, CSS3, JavaScript (ES6+), DOM, browser APIs, and responsive design.

• Understanding of browser rendering principles and practical experience in web performance optimization.

• Experience consuming and integrating APIs; familiarity with async patterns, authentication flows, and error handling.

• Proficiency with Git and collaborative development workflows (branching, PRs, reviews).

• Good communication skills and ability to work effectively in cross-functional teams.