OPEN TO FULL STACK & QA ROLES

Building digital
experiences that
feel alive.

Looking for

I'm Sirawit Boonthong, a frontend-focused Full Stack Developer with 4 years 9 months of experience in Next.js, React and TypeScript. I also test what I build — APIs in Postman, user flows in Cypress, bugs tracked in Jira.

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Based inNonthaburi, Thailand

Quality & testingCypress · Postman · Jira

Main stackNext.js · React · TypeScript

~5 Years
experience

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01 / ABOUT

Code with purpose.
Test with intent.

I build the interfaces people actually use — game platforms, dashboards and business tools — and I make sure they hold up when real users arrive.

Since 2021 I've worked at KOS Design, shipping Web3 game platforms such as Nakamoto Games and Outlanders along with their admin back offices, mostly in Next.js. In parallel, I freelanced for Planet X Technology on business platforms and service-management systems. I take features from Figma to production, test them along the way, and pick up new tools quickly.

NameSirawit Boonthong

NicknamePai

FocusFull Stack (frontend-focused) · QA

EducationKMUTNB — Electronic Engineering Technology, 2017–2021

4y 9m Frontend experience

10 Products & systems delivered

3 Companies, from banking to Web3

Frontend Development

Responsive, accessible interfaces with polished interactions and a clear visual hierarchy.

Full Stack Delivery

Comfortable across the whole flow — database and APIs through to the final user experience.

Quality Mindset

Testing is part of how I build: APIs, user flows and edge cases checked before release.

UI & Product Design

Bridging design and engineering with Figma, Adobe tools and detail-driven implementation.

02 / OPEN TO WORK

I build it right.
Then I try to break it.

My primary focus is Full Stack Development. I'm also open to Manual QA and QA Automation roles, where my developer background helps me find issues faster and explain them clearly.

Actively looking

Primary focusFull Stack Developer

Also open toManual QA · QA Automation

Based inNonthaburi, Thailand

01 · PRIMARY FOCUS

Full Stack Developer

4 years 9 months shipping production web apps — from Web3 game platforms to admin back offices. Strongest on the frontend, and comfortable across the stack to deliver a feature end to end.

Production UIs in Next.js, React & TypeScript — responsive, fast and true to the Figma design
Back-office systems & dashboards: data tables, forms, statuses and admin flows
APIs and server-side work with Node.js / Express, REST, MongoDB, MySQL and Firebase
A tester's mindset — edge cases and test coverage considered from the first commit

Next.jsReactTypeScriptNode.jsExpressREST APIMongoDBMySQL

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02 · ALSO OPEN TO

Manual QA / QA Tester

Hands-on testing of systems and multi-page web workflows. I know how web apps are built, so I know where to look.

System & workflow testing — checking every step a user takes across pages
API testing in Postman — status codes, responses and error cases
Bug reports in Jira — clear steps, expected vs. actual, retest after fixes

PostmanJiraWeb workflows

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03 · ALSO OPEN TO

QA Automation

Automating the checks that matter with Cypress — a solid foundation that I'm ready to grow in a dedicated QA role.

E2E tests in Cypress for real user flows
Unit & Component tests to catch regressions early
JavaScript / TypeScript fluency — writing test code comes naturally

CypressJavaScriptTypeScriptE2E

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03 / EXPERTISE

A practical toolkit for
modern products.

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Core — used daily

Next.jsReactTypeScriptJavaScriptHTML5CSS3 / SCSSThree.jsWeb3 wallet integrationGit / GitHub

Back end & other tools

Node.js / ExpressREST APIMongoDBMySQLFirebaseJenkinsVue / NuxtReact NativeFlutterPHPPythonJava

Testing & QA

CypressPostmanJiraUnit TestingComponent TestingE2E TestingAPI TestingBug Reporting

Design tools

FigmaAdobe XDPhotoshopIllustrator

04 / QUALITY ASSURANCE

Shipping is half the job.
Proving it works is the other.

I look at every feature from both sides — how it's built, and how it could break.

Alongside development, I've tested systems and web workflows hands-on: checking APIs in Postman, automating user flows with Cypress, writing unit and component tests, and tracking issues in Jira until each fix is verified. Knowing the code behind the screen helps me find root causes faster — and write bug reports developers can act on right away.

cypress run · sample output

0 passing

The testing pyramid I work with

E2EReal user flows in the browserCypress

ComponentUI components in isolation

UnitFunctions & business logic

API layer checked with Postman

Postman

API Testing

Requests and collections in Postman to verify endpoints, status codes, payloads and error handling.

Manual

Workflow Testing

Walking through multi-page web flows step by step to confirm the system behaves correctly at each stage.

Cypress · Unit · Component

Automated Tests

E2E journeys in Cypress plus unit and component tests that catch regressions before they reach users.

Jira

Bug Tracking

Issues logged in Jira with steps to reproduce, expected vs. actual results and evidence — then retested once fixed.

My testing workflow

01UnderstandRequirements & acceptance criteria
02PlanTest scenarios & test cases
03ExecuteManual + Cypress + Postman
04ReportClear bug tickets in Jira
05VerifyRetest & regression

My 4 years 9 months are in frontend development. Testing is hands-on experience gained alongside that work — a foundation I'm ready to grow in a dedicated QA role.

05 / EXPERIENCE

Experience shaped by
real-world delivery.

Nov 2021 — Present Full-time

FULL STACK DEVELOPER · FRONTEND-FOCUSED

KOS Design

Built Nakamoto Games, an NFT game aggregation platform, in Next.js — the UI plus Web3 digital-wallet integration.
Developed the Nakamoto admin back office for managing platform data, statuses and day-to-day operations.
Built Outlanders, a Web3 NFT game — UI and core gameplay features in Next.js, with 3D character models rendered in Three.js.
Delivered Monster Ville, a Telegram mini-game with bot integration, and the Nakaverse game information site.

Next.jsReactTypeScriptThree.jsWeb3Telegram Bot

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Nov 2023 — Jul 2024 Freelance

FRONTEND DEVELOPER · FREELANCE

Planet X Technology

Built the UI and core features of Deal, an online platform matching investors with entrepreneurs, plus its back office, in Next.js.
Designed and developed GOGOJII Privilege, a voucher and privileges platform, with its back-office management system.
Built GOGOJII Maid Service & Work Order, a system for requesting and managing housekeeping jobs.
Developed the first version of the company's landing page.

Next.jsReactFigma

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Jan — Apr 2021 Internship