Chalermphan Eursukkul

Results-oriented Senior Software Developer with over 4 years of experience architecting and building scalable full stack applications across fintech, CRM, redemption, and enterprise platforms. Strong in C#/.NET Core, Golang, React, Next.js, microservices, Clean Architecture, DDD, and CQRS, with a track record of translating complex business workflows into reliable, maintainable systems.

Senior Software Developer at APFS Enterprise (2026-04 – Present)

Architect and develop a high-scale Financing as a Service platform for Insurance Premium Financing and Factoring workflows.

• Build backend microservices with.NET Core and intuitive, data-driven interfaces with React.
• Apply DDD and CQRS patterns to keep financial workflow data consistent, maintainable, and audit-ready.
• Automate documentation, verification, and operational processes to reduce manual work and improve transaction speed.
• Collaborate remotely with engineering and business stakeholders to deliver secure, cloud-native fintech capabilities.

Senior Software Developer at Sirisoft Public Company Limited (2025-12 – 2026-03)

• Owned full-lifecycle development of in-house enterprise applications across frontend, backend, and infrastructure layers.
• Designed scalable systems using Clean Architecture and DDD principles for complex business logic.
• Developed high-concurrency microservices and responsive user experiences using Golang, Next.js, and cloud-native tooling.

Senior Full Stack Developer at FCC Services Co., Ltd. (2023-08 – 2025-11)

Developed redemption, loyalty, CRM, and BPO contact center platforms for LINE, web, application, and contact center channels.

• Built and maintained Golang microservices with Azure SQL, including CQRS-based read/write separation.
• Integrated Azure services for authentication, logging, monitoring, and operational reliability.
• Optimized database performance through indexing, query tuning, and architecture planning.

BA & Full Stack Developer at Synergy Commodities Trade Co., Ltd. (2023-01 – 2023-07)

• Translated business requirements into technical solutions, system designs, algorithms, and flowcharts.
• Led system testing, deployment, and performance optimization while bridging business and IT teams.

Full Stack Developer at Rainbow Solution Co., Ltd. (Smile POS) (2022-07 – 2022-12)

• Designed and delivered POS application improvements from requirement analysis through deployment.
• Improved usability by coordinating business feedback, technical implementation, and system testing.