Backend & Systems Engineer with 8+ years of experience specializing in the "engine" of high-performance applications. My expertise lies in reverse engineering undocumented systems, building robust backend architectures, secure API integrations, and automating complex workflows including financial systems. In recent work, I've moved beyond standard web development into deep Systems Engineering — a prime example being a Southeast Asia and USA banking prototype, where I used Node.js and Golang to handle secure transaction logic and high-throughput API communication. I specialize in Legacy System Modernization through Reverse Engineering and Process Automation — creating modern API wrappers for undocumented protocols to ensure seamless system interoperability. I prefer async, written communication and work best with clients who value clear documentation and structured updates over constant calls. I actively use AI tools in my workflow to accelerate development, debugging, and system analysis. Open to discussing complex backend challenges, system design, or automation engineering projects. Daily stack: TypeScript, Go, C

5 years of experience in Django and Python developer. Works on many field and many clients from web application building, into Large Language Model building

Project Manager and Virtual Assistant with over three years of experience supporting operations, communications, and cross-border projects in the international art world. Based between Yogyakarta and Singapore, I’ve worked across galleries, art fairs, and artist studios — coordinating teams, managing logistics, and keeping complex projects on track across time zones. I bring structure to moving parts, and reliability to every stage of execution.

Recruiter with 5+ years of experience helping startups and growing companies build high-impact teams across tech, non-tech, and executive roles. I partner closely with founders and hiring leaders, not just to fill roles, but to shape hiring strategy, define what “great” looks like, and build pipelines that convert. I focus on moving fast without sacrificing quality, combining structured sourcing with a human-first approach. Creating an empathetic and inclusive candidate experience is core to how I work, because it directly influences offer acceptance, employer brand, and long-term retention. Operationally strong and adaptable, I’m comfortable managing multiple priorities, handling confidential searches, and delivering in fast-paced environments. I bring a growth mindset into every search, continuously improving and helping teams unlock the right talent at the right time.

20+ years of experience creating visual identities, print materials, and brand systems for businesses across different industries. My strengths are in clean, strategic, and emotionally engaging design that not only looks professional, but also communicates clearly and builds trust.

Flutter Mobile Developer with 2 years of hands-on experience delivering production-ready applications across multiple industries, including HRM, POS, and booking systems. Skilled in Flutter and Dart with a strong foundation in Clean Architecture, state management (BLoC, Riverpod, GetX), and API integration. Proven track record of improving app performance, enhancing UI responsiveness, and building scalable, user-focused solutions. Passionate about clean code, app optimization, and continuous learning, currently expanding expertise toward full- stack and backend integration.

Senior frontend engineer with over 5 years of experience working with ReactJS and its ecosystem. I'm available to work for 40 hours/week. I can communicate both through text(Discord, Slack, etc) or verbally(Zoom meeting, Google Meet). I have been using AI both at work and in my personal project. I mainly use AI to do repetitive tasks and to give me suggestions, although I still have the final decision.

I’m a Software Engineer with a strong focus on backend development and scalable system design. I primarily work with Golang, Node.js, and PHP, and have hands-on experience building production systems from scratch—covering architecture, APIs, databases, and deployment. In my current role, I’ve improved system performance using goroutines, Redis caching, and message queues like RabbitMQ. I also work with Docker, Prometheus, and Grafana for deployment and monitoring, ensuring applications are reliable and efficient. I’m comfortable working across the full development lifecycle—from understanding business needs to delivering and maintaining production-ready systems. I value clean, maintainable code and practical solutions over overengineering. How I work with clients: Communication: Clear, direct, and async-friendly (Slack, email, or chat tools) Workflow: Task-based with regular updates and transparency Availability: Flexible, can overlap with US time zones when needed Tools: Git (Bitbucket/GitLab), Docker, CI/CD pipelines AI experience: I actively use AI tools like Claude in both work and personal projects. I’ve worked with MCP (Model Context Protocol) and skills to improve productivity, automate workflows, and assist in development tasks such as debugging, code generation, and system design exploration.

Mobile Engineer with 5+ years of experience delivering production-grade mobile applications, including 2+ years in native Android (Kotlin & Java) and 4+ years in cross-platform development with Flutter. Proven track record across diverse domains—LMS, POS, HR systems, PPOB, and transportation—with a strong focus on clean architecture, performance optimization, and scalable solutions. Product-oriented engineer who aligns technical decisions with business objectives, and currently expanding expertise in AI Engineering to build intelligent mobile experiences.

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I’m a software developer focused on backend development and building reliable systems. I mainly work with PHP (Laravel), APIs, and databases, with experience handling complex logic and optimizing performance. I can also work on frontend integration and Flutter for mobile apps when needed.

Senior Backend Engineer with 15+ years of experience building scalable, production-grade systems using Java (Spring Boot). I specialize in system architecture, microservices, and high-performance integrations using Kafka, RabbitMQ, PostgreSQL, and AWS. I focus on reliability, maintainability, and long-term system quality—not just getting features out. I take ownership end-to-end: from design and implementation to production support and optimization. Communication is clear and business-focused, with proactive updates and early risk visibility. I use AI tools to move faster, while ensuring everything is solid and production-ready. If you need a senior engineer who can deliver and think strategically, I’m ready to help.