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Kristian I. — Senior Software Engineer Backend Developer from Indonesia

Kristian I.

Senior Software Engineer Backend Developer

Indonesia 3-6 years
Open to offersNew to Platform
Languages
EnglishIndonesian
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About

Kristian I. is a highly seasoned Senior Software Engineer with over 13 years of experience specializing in the development of backend and full-stack SaaS platforms. With expertise in PHP (Laravel), Node.js, and AWS, he has been instrumental in designing REST APIs, optimizing database performance, and integrating third-party services. Notably, Kristian contributed significantly to the multi-tenant SaaS insurance platform at Ancileo, used by international partners such as AMEX and AXA. His efforts included designing large-scale Laravel-based systems, implementing serverless rule-processing engines using AWS Lambda, and optimizing MySQL queries to enhance production performance. Furthermore, Kristian played a crucial role in maintaining backend systems handling thousands of insurance transactions monthly and integrated multiple third-party APIs, including payment gateways with 3DS authentication. His experience spans working in distributed engineering teams across Asia and Europe, enhancing system stability, and delivering high-quality production systems. Kristian holds a Master of Informatics and certifications such as Cisco CCNA-1, showcasing his continuous commitment to technical excellence.

Experience

  • Senior Software Engineer / Tech Lead

    Ancileo · 2022 — 2025
    Contributed to the backend architecture and feature implementation for a multi-tenant SaaS insurance platform utilized by global partners. Designed backend services with Laravel, developed REST APIs for various functionalities, and implemented a serverless rule-processing engine leveraging AWS Lambda and API Gateway. Enhanced system performance through caching strategies, integrated third-party APIs, and maintained backend systems to support high transaction volumes. Optimized MySQL queries and diagnosed production issues to improve overall performance while mentoring engineers and participating in technical decision-making.
  • Senior Full-Stack Developer

    Ancileo · 2021 — 2022
    Developed backend services and APIs using Laravel and MySQL for the insurance distribution platform, designed database schemas, and optimized queries to facilitate core business workflows. Built integrations with partner APIs and collaborated with various stakeholders to deliver complete features. Engaged in frontend development as required to support full-stack feature implementation.
  • Freelance Full-Stack Developer

    Innoscripta Gmbh · 2020 — 2020
    Maintained and enhanced backend modules for a document-processing platform while delivering features in a remote asynchronous setting. Focused on improving system stability and ensuring production functionality across backend services.
  • Software Developer / Co-founder

    Amatech – PT. Adika Prima Teknologi · 2019 — 2020
    Developed enterprise web applications, including ERP and Sales Force Automation systems, while building backend services that supported factory workflows and mobile field operations. Delivered tailored web and mobile solutions for various enterprise clients.

Skills & Expertise

Education

  • Master of Informatics
    iSTTS · — — 2020
  • Bachelor of Informatics
    STTS · — — 2010