Pichai Namwan
Software Engineer
Chiang Mai,Saraphi
Work Preference
Summary
Software Engineer focused on backend-heavy systems in logistics and e-commerce, with hands-on delivery in Java Spring Boot microservices and .NET/Angular platforms. Strong in API development, SQL/data work, observability, and production troubleshooting; remote-ready from Thailand with AU/EU-friendly overlap and regular PO / PM / BA collaboration.
Overview
5
5
years of professional experience
Work History
Software Engineer
Nware Ltd.
10.2024 - Current
- Developed and maintained 5 Java Spring Boot microservices plus ~10 smaller API projects (Apikana-based contracts) for logistics tour workflows, including optimizer, tour-state, and tour-selection services.
- Supported vendor selection, route/cost decisions, and high-volume tour processing at approximately 3,000-4,000 tours/day across daytime and evening workflows (internal estimate).
- Resolved cross-service bugs, API integrations, SQL migrations, and data-flow issues; improved performance by narrowing database queries to required data only.
- Built and maintained 200+ Grafana dashboards and alerts for multiple teams using Prometheus and Splunk, with Opsgenie notifications.
- Supported Jenkins pipelines for dev / int / prod and AWS configuration tasks (including JSON outputs stored in S3), with regular collaboration across PO / PM / BA.
- Logistics routing/tour planning platform for a Swiss postal/logistics client (Java microservices)
- Tech: Java, Spring Boot 3, PostgreSQL, MongoDB, Jenkins, Grafana, Prometheus, Splunk, AWS S3
Full Stack Developer
Colengo by Tek Def Co., Ltd.
05.2022 - 09.2024
- Built and maintained the full-stack oneCORE platform for admin operations (products, users, shipping, payments, site management) across 10+ companies / multiple storefronts.
- Designed and implemented configurable-product behavior in the admin system, including multi-step product structures, dynamic controls, selection constraints, and cross-step dependency rules (show/hide/disable).
- Worked deeply across the stack in a 2-developer team: Angular admin UI, .NET Core APIs, SQL Server data modeling, CQRS foundation work, and API optimization.
- Developed customer-facing storefronts with ASP.NET Razor Pages (SSR) + TypeScript and delivered reusable SEO/performance improvements (semantic markup, indexing, page speed, structured content) across shops.
- Built campaign features and contributed to SEO/storefront performance improvements for client storefronts; one storefront recorded approximately ~USD 200,000 in first-week sales after deployment, and I supported 8+ storefronts (including Tabledusud, Livecard.net, and AmsterdamNightLife) in the oneCORE ecosystem (internal observation).
- OneCORE e-commerce admin platform + multi-shop storefronts
- Tech: C#, .NET Core, ASP.NET Core, ASP.NET Razor Pages, Angular, SQL Server, TypeScript, CQRS, SEO
Intern Web Developer
Manao Software Co., Ltd.
04.2021 - 09.2021
- Started on an internal staffing/quotation tool (Manao Picker) and moved to a client-facing fintech project after strong early internship delivery.
- Built full-stack features for Manao Picker (Angular, Node.js, Firebase) for employee browsing, team formation, quotation workflows, and GDPR-related data management across admin/client interfaces.
- Contributed full-stack to Anyday (Denmark-based payment-splitting fintech) admin tooling for installment-payment operations, including schema changes, APIs, batch jobs, and Angular UI for webshop user management and credit-limit evaluation.
- Worked within a CQRS-style, log-driven data flow (state rebuilt from logs/read models), and automated monthly credit-limit jobs to reduce manual admin work; batch execution completed all users in approximately 1.5 hours with no job failures during runs.
- Internal staffing app + client-facing fintech admin tooling (Anyday, Denmark-based payment-splitting fintech)
- Tech: Angular, TypeScript, .NET Core, Node.js, SQL Server, Firebase, CQRS
Education
Bachelor of Computer Science - Computer Science, Business Administration
Chiang Mai University
Skills
- Backend NET Core
- ASPNET Core
- ASPNET Razor Pages
- Spring Boot
- Nodejs
- REST APIs
- Frontend Angular
- TypeScript
- JavaScript
- HTML
- CSS/SCSS
- Data / DB PostgreSQL
- SQL Server
- MongoDB
- Firebase Realtime DB
- DevOps / Observability Jenkins
- ArgoCD
- AWS (S3)
- Grafana
- Prometheus
- Splunk
- Opsgenie
- Docker
- Git
- Architecture / Practices Microservices
- CQRS
- Event-driven workflows
- Multi-tenant systems
- Batch jobs
- SQL migrations
- Query optimization
- Unit tests
- Agile/Scrum
Selected Impact Highlights
- Built and maintained 5 Java Spring Boot microservices for a Swiss postal/logistics client
- Supported production workflows at approximately ~3,000-4,000 tours/day (internal estimate)
- Built and maintained 200+ Grafana dashboards and alerts (Prometheus / Splunk / Opsgenie)
- Built multi-tenant e-commerce platforms for 10+ companies; contributed campaign + SEO/storefront improvements linked to ~USD 200,000 first-week sales for one client storefront (internal observation)
Core Skills
.NET Core, ASP.NET Core, ASP.NET Razor Pages, Spring Boot, Node.js, REST APIs, Angular, TypeScript, JavaScript, HTML, CSS/SCSS, PostgreSQL, SQL Server, MongoDB, Firebase Realtime DB, Jenkins, ArgoCD, AWS (S3), Grafana, Prometheus, Splunk, Opsgenie, Docker, Git, Microservices, CQRS, event-driven workflows, multi-tenant systems, batch jobs, SQL migrations, query optimization, unit tests, Agile/Scrum
Personal Information
- Title: Software Engineer (Full Stack / Backend)
- Availability: Open to Remote, Chiang Mai, Thailand
Languages
English
Intermediate (B1)
Thai
Advanced (C1)
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Timeline
Software Engineer
Nware Ltd.
10.2024 - Current
Full Stack Developer
Colengo by Tek Def Co., Ltd.
05.2022 - 09.2024
Intern Web Developer
Manao Software Co., Ltd.
04.2021 - 09.2021
Bachelor of Computer Science - Computer Science, Business Administration
Chiang Mai University