I am a Software Engineer with 4 years building scalable full-stack applications across startup and enterprise environments. I specialize in JavaScript, Java, and Python, with a strong focus on payments integration, RESTful APIs, and cloud architectures (AWS/Azure).

Joshua Mwamlanda S

I am a Software Engineer with 4 years building scalable full-stack applications across startup and enterprise environments. I specialize in JavaScript, Java, and Python, with a strong focus on payments integration, RESTful APIs, and cloud architectures (AWS/Azure).

Available to hire

I am a Software Engineer with 4 years building scalable full-stack applications across startup and enterprise environments.

I specialize in JavaScript, Java, and Python, with a strong focus on payments integration, RESTful APIs, and cloud architectures (AWS/Azure).

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

Javanese
Advanced

Work Experience

Software Engineer (Contract) at Old Mutual
January 1, 2025 - Present
Developed and optimized core insurance applications using ReactJS/NextJS, Node.js/ExpressJS, and MySQL, reducing policy processing time by 90% and handling 5K+ daily requests with 99.9% uptime. Architected and implemented scalable RESTful APIs for policy management, claims processing, and JWT-based authentication using Node.js/Express, handling 10K+ daily requests. Led end-to-end third-party payment gateway integration (Paystack) with automated transaction verification and instant policy activation, reducing policy issue time by 95%. Designed and deployed webhook-based SMS/email alert system handling 15K+ monthly notifications with 98% delivery success. Implemented session tracking and user journey analytics across all insurance workflows, enabling real-time monitoring and automated error detection that improved system uptime to 99.8%.
Software Engineer (Contract) at Realware LLC
November 1, 2023 - December 1, 2024
Developed responsive health care web applications using Python/Django, React/NextJS, and TypeScript with component-based architecture, delivering pixel-perfect UI across desktop and mobile devices. Engineered automated reporting systems reducing manual effort by 85%, implementing workflow automation for critical business insights and documentation. Developed data extraction and transformation pipelines for processing unstructured health care data (PDFs, clinical notes), achieving 92% accuracy in automated categorization. Built secure, scalable services on AWS/Azure with comprehensive CI/CD pipelines using GitHub Actions, reducing manual testing overhead and accelerating feature deployment.
Full-Stack Developer (Contract) at Lipachat
November 1, 2022 - November 1, 2024
Engineered full‑stack chat bot platform using Java/Spring Boot and ReactJS, delivering scalable multi-tenant SaaS with WebSocket-based real-time messaging. Developed WhatsApp Gateways with robust error handling and retry logic, enabling seamless third-party integration and automated multi-channel notifications. Built automated workflows using n8n and Make for lead generation, customer onboarding, and data synchronization, reducing manual processing time by 80%. Built a reusable React component library for chat interfaces, message threads, and notification systems, accelerating feature development across teams.

Education

Bachelor of Science in Information Technology at Zetech University
January 1, 2020 - January 1, 2024
Full Stack Development Certificate at Moringa School
January 1, 2021 - January 1, 2022
Bachelor of Science in Information Technology at Zetech University
January 1, 2020 - December 31, 2024
Full Stack Development Certificate at Moringa School
January 1, 2021 - December 31, 2022

Qualifications

Full Stack Development Certificate
January 1, 2021 - January 1, 2022
Full Stack Development Certificate
January 1, 2021 - December 31, 2022

Industry Experience

Software & Internet, Professional Services, Financial Services, Healthcare, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
See more