Technical Business Analyst

For over twenty-five years, ISM Technology Recruitment has been putting Thai IT contractors into great, high-paying contracts at Thailand’s biggest and best-known companies.

Whether you’re looking for a short-term project or a longer-term assignment, we’re here to help you make the best choice for your IT career. And of course we recruit for permanent positions too… contracting can be a great way to “get in the door” and be considered for full-time employment by our blue-chip, enterprise clients.

When you contract through ISM you’ll have the confidence that comes from knowing that your agency has a solid financial background and a reputation for ethical business practices.

So what are you waiting for? If you have at least three years’ work experience and a passion for IT, you owe it to yourself to find out what you could be earning as a contractor.

Click “Apply” to send your CV to ISM now and start your excellent journey to new opportunities and attractive pay as a contract IT professional.

Description

Create detailed technical documentation, including FSDs, SRS, user stories, and clear acceptance criteria.

Define RESTful API contracts (JSON, request/response, error handling) for internal services and external integrations (e.g. PromptPay, NDID).

Design end-to-end system workflows using sequence diagrams, DFDs, and activity diagrams.

Design back-office system flows for operations (e.g. transaction inquiries, dispute handling, maker-checker workflows).

Define monitoring and telemetry requirements to track system health and performance.

Capture and define NFRs such as scalability, performance, and high availability, including peak transaction scenarios.

Collaborate with QA and performance teams on load testing, latency SLAs, and recovery targets (RTO/RPO).

• Ensure compliance with BOT regulations, e-Payment security, AML, and PDPA.

Qualification

• 4–7 years’ experience as Technical BA / System Analyst / Backend Product Owner in Banking or FinTech.
• Strong technical documentation skills (FSD, API Specs, Data Dictionary) with ability to work with JSON, Swagger/OpenAPI, XML, and basic SQL.
• Understanding of Microservices, API integration, and Cloud-native architecture (AWS, GCP, or Azure).
• Familiar with Retail Banking products (CASA, Personal Loans, Credit Cards).
• Proficient in diagramming tools (Draw.io, Visio, Mermaid) for UML, Sequence, ERD.
• Fluent in Thai and proficient in English for technical documentation.