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Result-driven Software Engineer with over 4 years of hands-on experience designing, developing, and deploying production-grade web and mobile applications across fintech/banking, IoT, and logistics. Specializes in micro-frontends, high-availability backends, and automated CI/CD pipelines. Proficient across the full stack (React, Next.js, React Native, Node.js, Python, Java Spring Boot) and cloud infrastructure (AWS, Docker, Kubernetes). Seeking engineering roles in Singapore spanning software engineering, DevOps, site reliability, or cloud engineering.…Result-driven Software Engineer with over 4 years of hands-on experience designing, developing, and deploying production-grade web and mobile applications across fintech/banking, IoT, and logistics. Specializes in micro-frontends, high-availability backends, and automated CI/CD pipelines. Proficient across the full stack (React, Next.js, React Native, Node.js, Python, Java Spring Boot) and cloud infrastructure (AWS, Docker, Kubernetes). Seeking engineering roles in Singapore spanning software engineering, DevOps, site reliability, or cloud engineering.

Calvin Lua Wen Zheng

Software Engineer, DevOps Developer, Cloud Developer, +1

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Result-driven Software Engineer with over 4 years of hands-on experience designing, developing, and deploying production-grade web and mobile applications across fintech/banking, IoT, and logistics. Specializes in micro-frontends, high-availability backends, and automated CI/CD pipelines. Proficient across the full stack (React, Next.js, React Native, Node.js, Python, Java Spring Boot) and cloud infrastructure (AWS, Docker, Kubernetes). Seeking engineering roles in Singapore spanning software engineering, DevOps, site reliability, or cloud engineering.…Result-driven Software Engineer with over 4 years of hands-on experience designing, developing, and deploying production-grade web and mobile applications across fintech/banking, IoT, and logistics. Specializes in micro-frontends, high-availability backends, and automated CI/CD pipelines. Proficient across the full stack (React, Next.js, React Native, Node.js, Python, Java Spring Boot) and cloud infrastructure (AWS, Docker, Kubernetes). Seeking engineering roles in Singapore spanning software engineering, DevOps, site reliability, or cloud engineering.

Available to hire

Result-driven Software Engineer with over 4 years of hands-on experience designing, developing, and deploying production-grade web and mobile applications across fintech/banking, IoT, and logistics. Specializes in micro-frontends, high-availability backends, and automated CI/CD pipelines.

Proficient across the full stack (React, Next.js, React Native, Node.js, Python, Java Spring Boot) and cloud infrastructure (AWS, Docker, Kubernetes). Seeking engineering roles in Singapore spanning software engineering, DevOps, site reliability, or cloud engineering.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Chinese

Advanced

Malay

Advanced

Japanese

Intermediate

Work Experience

Software Engineer at Bank of Singapore (BOS) Asia Global Private Bank, subsidiaries of OCBC Bank Singapore

August 1, 2025 - Present

Led and executed route-based and composition-based Micro-Frontend (MFE) implementations for client onboarding and KYC platforms, enabling clean separation of concerns, independent deployment cycles, and streamlined cross-team collaboration. Optimized production build pipelines via Webpack (tree-shaking, code-splitting, and asset compression), reducing bundle size by ~30% and improving Time-to-Interactive (TTI). Built resilient data-fetching with Redux Toolkit (RTK Query) including caching, standardized API templates, and automated retry logic. Standardized complex form state management using React Hook Form to reduce boilerplate and improve client-side validation. Enforced code quality and security by integrating SonarQube Quality Gates and automated security scanning (Black Duck, Coverity) into CI/CD. Developed private NPM packages distributed via Nexus. Built TypeScript Node.js Express backend services and maintained high-availability Spring Cloud microservices with Kafka-based event

Software Engineer at Hyundai Motor Group Innovation Center Singapore Pte. Ltd.

February 1, 2023 - August 1, 2025

Developed inventory backends (Express) and Java Spring Boot ERP KPI engines, plus modular React/Vue.js frontends. Implemented Site Reliability Engineering (SRE) practices for high availability in business-critical environments. Designed secure RESTful APIs for internal production pipeline data communication. Built an automated connectivity dashboard (Express + React) for real-time tracking of globally distributed inventory assets for IoT engineers, alongside tailored automation tools to improve operational productivity. Co-developed external Webhook APIs and web platforms with PSA Singapore for logistical issue tracking and automated parts supply stream communication. Built RAG-based AI troubleshooting assistant using React, Python (FastAPI), and LangChain; also built a LangGraph orchestrator-worker multi-agent system to automate reservation flow and public queries for the Hyundai Skytrack experience. Administered production databases (Tibero, MySQL, PostgreSQL), improved SEO via Core

Software Developer (Contract) at DSP Engineering Solutions Pte. Ltd.

May 1, 2022 - February 1, 2023

Developed responsive web platforms for enterprise Building Management Systems (BMS) using React, Node.js/Express, Java Spring Boot, and MSSQL. Implemented high-availability failover for MSSQL Enterprise using an Active-Passive Hot Standby strategy on Windows Server. Designed network architecture (router assignments, VLAN segmentation, and Windows Server staging). Built decoupled SPAs with React and Material UI ensuring fully responsive layouts. Architected event-driven Webhook APIs to ingest real-time telemetry using Kafka and WebSocket for live UI updates. Implemented JWT token handling with refresh-token mechanics plus social OAuth/LDAP integrations for corporate identity management. Configured and optimized Nginx deployments and automated CI/CD multi-stage deliveries using GitLab and Jenkins. Provisioned NoSQL environments for high-volume building health metrics, managed Confluent Kafka clusters and ZooKeeper sensor hubs, integrated RabbitMQ for durable inter-service messaging, and

R&D Software Engineer at JKS Engineering (M) SDN. BHD.

May 1, 2021 - February 1, 2022

Engineered React Native mobile applications for real-time industrial cleaning machine metrics using Node-RED (Node.js IoT platform) and PLC integrations. Developed, deployed, and maintained a Gatsby-based public B2C web layout using React, Node.js, and MySQL. Built a Python + Flask computer vision hand gesture tracking solution for edge-safety monitoring across industrial machine UIs. Authored a Django-based internal HR system for timesheets and leave tracking, achieving high test coverage using pytest and coverage.py. Maintained local server instances on DigitalOcean Droplets and handled live multi-environment DNS records.

R&D Software Engineer (Part Time) at JKS Engineering (M) SDN. BHD.

May 1, 2020 - February 1, 2021

Developed and maintained enterprise dashboards using C# for web and desktop integrations bound to industrial hardware modules. Built initial functional React Native mobile application prototypes for tracking and validating baseline industrial washing telemetry.