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Laurensius Jeffrey Chandra
Fullstack Developer
Fullstack Developer with expertise in building end-to-end applications, designing backend APIs, configuring cloud infrastructure, and maintaining production systems.
Skills & Core Competencies
Programming Languages
Frameworks & Libraries
Databases & Caching
Cloud & DevOps
Architecture & Design
Certifications
Work Experience
Founder & Lead Developer at Skiddle Development
2021 - PresentIndependent software development studio focused on custom software development, backend engineering, cloud-native infrastructure, developer tooling, and open-source software.
- Designed and developed custom software solutions for clients across multiple industries.
- Built scalable backend services, REST APIs, and developer platforms.
- Architected cloud-native infrastructure using Docker and Kubernetes.
- Designed distributed systems and self-hosted services.
- Published and maintained open-source software under the Skiddle ecosystem.
- Managed production infrastructure, monitoring, CI/CD pipelines, and deployments.
- Developed privacy-focused developer tools and backend services.
- Led projects from planning and system architecture through deployment and maintenance.
Full Stack Developer (Core Team) at HS Group (IT Division)
Late 2023 - PresentServed as a Core Team member developing our proprietary, high-performance white-label platform engine, XPlay (https://xplay.group), in a high-traffic online entertainment startup.
- Architected and developed the core white-label engine, XPlay, from scratch using Go, Laravel, and TypeScript.
- Built the credit-based transaction and ledger system from Day 1, powering all deposit, withdrawal, and balance operations across tenant platforms.
- Led API integrations with major gaming providers, including Pragmatic Play, Fat Panda, SBO Sportsbook, Saba Sports, Liteplay, JMarble, and AI Gaming.
- Integrated secure payment gateways to support automated QRIS transaction processing flows.
- Designed a highly scalable multi-tenant architecture supporting dynamic branding and rapid brand site deployments.
- Established containerized workflows using Docker, CI/CD, and Cloudflare edge optimization for staging (https://hs-staging.dev/, restricted to SEA Region IPs) and production environments.
System Integrator, Founding Team Member & Advisor at Aerialite
2017 - 2022 (Team Advisor 2020 - 2022)Founding member of Aerialite, a software development and integration company focused on empowering SMEs with professional systems, websites, and business platforms to make their operations run smoothly. Served as Team Advisor from 2020 to 2022, providing technical guidance.
- Delivered customized software systems, websites, and business platforms for SMEs across Southeast Asia and Europe to automate operational workflows.
- Designed and integrated backend architectures and cloud infrastructure, enabling SMEs to deliver professional-grade services.
- Built secure, reliable REST APIs and database structures to support business platforms.
- Collaborated with client teams and stakeholders to translate operational needs into technical requirements.
- Managed deployments, server configurations, and DevOps workflows for clients under NDA.
- Served as Team Advisor from 2020 to 2022, providing technical guidance and architectural consultation.
Part-Time Developer & Server Engineer at PT. Kwikku Media Nusantara
2015 - 2017Contributed as a part-time developer and server engineer for Kwikku, an Indonesian startup building a social media platform. Developed backend services using their custom-built proprietary PHP framework and managed dedicated server infrastructure.
- Developed backend features and APIs utilizing a custom-built, proprietary PHP framework.
- Managed dedicated Linux servers, implementing automated backup systems and rigorous server hardening policies.
- Maintained and optimized Linux server deployments, utilizing Nginx and database clustering.
- Resolved server bottlenecks, improving page loading performance and request throughput.
Operational Customer Services at HS Group
2021 - 2023Managed player relations, live customer communication, and deposit/withdrawal processing workflows for a high-volume gaming platform.
- Communicated directly with customers via live chat systems to resolve gameplay questions, account inquiries, and service requests.
- Coordinated payment verification tasks with operational staff, validating user deposits and approving withdrawals.
- Ensured rapid response times and resolved player support tickets in a high-concurrency client-facing environment.
- Liaised with shift supervisors and supervisors to flag transaction anomalies or platform access disruptions.
Customer Operations Assistant at Online Entertainment Startup
2020 - 2021Supported account administration, user verification, and client inquiries for an online gaming and entertainment platform.
- Handled high-frequency customer queries and resolved balance discrepancies.
- Collaborated on basic system configuration logs to support platform health checks.
Featured Projects
Domain Checker API
maintainedA high-performance REST API for checking Indonesian domain blocking status using TrustPositif and Komdigi data. Integrated with a Telegram bot for public accessibility.
Shortlink Platform
maintainedA lightweight, self-hosted URL shortening platform supporting advanced analytics and custom domains. Deployed at the edge for optimal latency.
AxonEngine
in-progressA high-performance chess engine using Hand-Crafted Evaluation (HCE) together with an NNUE neural network trained on high-quality chess databases.
CheckDomain Web
completedWeb application interface for checking website accessibility and TrustPositif / Komdigi blocking status.
ATProtoBlog
completedBlogging platform built directly on top of the decentralized AT Protocol (Bluesky) ecosystem.
Klasemate
completedEducation platform designed for classroom management and collaboration. Originally developed in native PHP during high school.
Education
Bachelor of Science in Computer Science
2020 - 2021 (Graduated)- GPA: 3.80 / 4.00
- Completed a Bachelor of Science in Computer Science while continuing a professional software engineering career.
- Graduated through an accelerated pathway with transferred academic credits.
- Focused on software engineering, computer science, algorithms, distributed systems, and cloud computing.
Bachelor of Information Systems (Coursework Completed, 4 Semesters)
2016 - 2018- GPA: 3.70 / 4.00
- Completed four semesters before transitioning to full-time software development.
- Academic credits were later transferred toward completion of the Bachelor's degree at BINUS Online.
Vocational High School - Computer & Network Engineering
2014 - 2016- Specialized in computer networking, Linux system administration, routing, switching, and network infrastructure.
- Earned multiple professional networking certifications during study.
- Built a strong technical foundation in networking, infrastructure engineering, and Linux systems.