Sertis

Role Description We are looking for a Software Development Engineer in Test to join our team, focused on validating a Java codebase migration. Unlike a traditional QA role, this position requires strong Java development skills. You will: - Design and implement test strategies for the Java 8 to Java 21 migration, covering compatibility, regression, and behavioral validation. - Write and maintain automated test code in Java for API, backend services, and integration layers. - Build, extend, and own our existing Java-based automation framework running in Jenkins. - Set up and maintain CI/CD pipelines using Pipeline-as-Code (Groovy/Jenkinsfile). - Validate functional and non-functional behavior of migrated services, identifying edge cases and compatibility risks. - Perform API, integration, and regression testing across the application stack. - Collaborate with Java Developers to review code changes, assess migration risks, and define test coverage. - Manage and triage defects with clear root cause analysis and technical documentation. - Maintain test documentation, test cases, and validation reports. Qualifications - 2-4 years of Software Development in Test (SDET), test automation engineering, or backend development experience, with at least 1-2 years writing automation in Java. - Strong Core Java (JSE) skills, multithreading, collections, memory management; must write clean, maintainable test code, not just execute scripts. - Solid understanding of Java version differences, including module system changes, deprecated APIs, and runtime behavioral differences. - Hands-on experience building or extending automation frameworks. - Strong experience in API testing and backend validation using RestAssured, Postman, or similar tools. - Hands-on Jenkins experience, writing and maintaining Jenkinsfiles, integrating test suites into deployment pipelines. - Working SQL knowledge, writing and validating queries, understanding schema design, verifying data integrity in relational databases. - Familiarity with test management and defect tracking tools (Jira, TestRail, or similar). - Strong English communication skills (written and spoken) for collaboration with a US-based team. - Ability to work fully remote under US time zones. Requirements - Experience in fintech or high-transaction systems (payments, ledgers, financial data pipelines). - Familiarity with NoSQL databases and RDBMS interaction via application layers. - Experience with performance/load testing tools (JMeter, K6, or similar). - Understanding of logging, monitoring, and observability tools (ELK, Grafana, Datadog, or similar). - Exposure to AI-assisted development tools applied in a testing or coding context. Benefits - Fully remote position (work from anywhere under the US time zones). - Opportunity to learn modern Java practices on a real migration project with senior mentorship. - Collaborative and supportive team environment.

Who We Are Located in the heart of Bangkok’s Phrom Phong District, Sertis is ASEAN's leading Data and AI engineering and solutions company. Since 2014, our advanced solutions and products have powered over 400 enterprise Data and AI deployments at the region’s leading companies and conglomerates. We are also a member firm of Andersen Consulting, a global consulting practice integrating business strategy, digital transformation, and AI-driven technology solutions with Andersen Global’s world-class expertise. What We Do Sertis provides both productized and bespoke AI and Data solutions for our Customers, optimizing and commercializing their data in ways that activate real business results. Our 140+ team have developed product offerings and IP ranging from advanced Computer Vision applications accredited Global Top 20 by NIST, to automated insights monetization for Retailers, eKYC for financial institutions, AI-driven agricultural safety assurance, precision steel cutting, trading algorithms for hedge funds, and enterprise knowledge management systems based on AI. Our Aspiration We are data and AI pioneers, dedicated to enhancing the economic and social lives of our customers via technology. We are not just living in history, we are making history everyday. In becoming one of the world’s leading Data and AI companies, we always double-down on remaining a place where a diverse mix of talent wants to come, do their best work, and stay. We pride ourselves on bringing the best talent worldwide into a culture that encourages learning, growth opportunities, innovative contributions, and a sense of ownership. As part of Andersen Consulting, we are committed to delivering best-in-class Data and AI solutions—aligned with a global platform known for innovation, integration, and impact—while continuing to set benchmarks in the region and beyond. For more information, please visit: sertiscorp.com We are looking for a QA Engineer Lead to define and drive quality engineering practices across our payments platform. This is a senior, hands-on role for someone who can design test architecture while actively contributing to automation and delivery. You will play a key role in improving system reliability, scaling automation coverage, and embedding quality into the development lifecycle. You will work closely with Engineering, Product, and DevOps teams to ensure that systems are delivered with strong test coverage, stability, and performance in a high-transaction environment. *This is a fully remote role, working under US Time zone. In this role, you will get to: - Define and lead test strategy and automation approach - Build and scale test automation frameworks - Ensure strong test coverage (functional, integration, regression) - Integrate testing into CI/CD pipelines and quality gates - Partner with engineers to embed quality early in development - Lead API and backend testing across services - Track quality metrics (coverage, defects, release readiness) - Support debugging and root cause analysis in production issues - Mentor QA / engineers and drive best practices You’ll be successful if you have: - 4+ years of experience in QA, test automation, or backend testing with a Java-based testing environment. - Strong hands-on experience building and scaling automation frameworks - Expertise in automation tools such as Selenium, Playwright, Cypress, or similar and strong coding skills at least one languages (Java, JavaScript or Python) - Strong experience with API testing tools (Postman, RestAssured, or equivalent) - Solid understanding of software testing principles, including test design and risk-based testing - Experience working with CI/CD pipelines and integrating automated testing - Strong understanding of microservices architecture and distributed systems - Experience working in high-availability, production-critical environments - Strong problem-solving skills with the ability to debug complex system issues - Ability to operate independently with high ownership and accountability with clear communication skills, able to influence engineering and product stakeholders - Strong English communication skills both in written and spoken to communicate with the US team smoothly. - Willing to work remotely in the US time zones. It’s Nice If You Have: - Experience in fintech, payments, or high-transaction systems - Experience with performance and load testing (JMeter, k6, or similar) - Familiarity with containerized environments (Docker, Kubernetes) - Experience with observability tools and test reporting dashboards - Exposure to security testing practices What this opportunity offers - Fully remote position (work from anywhere under the US time zones). - Opportunity to learn modern Java practices on a real migration project with senior mentorship. - Collaborative and supportive team environment. APPLY NOW!

Who We Are Located in the heart of Bangkok’s Phrom Phong District, Sertis is ASEAN's leading Data and AI engineering and solutions company. Since 2014, our advanced solutions and products have powered over 400 enterprise Data and AI deployments at the region’s leading companies and conglomerates. We are also a member firm of Andersen Consulting, a global consulting practice integrating business strategy, digital transformation, and AI-driven technology solutions with Andersen Global’s world-class expertise. What We Do Sertis provides both productized and bespoke AI and Data solutions for our Customers, optimizing and commercializing their data in ways that activate real business results. Our 140+ team have developed product offerings and IP ranging from advanced Computer Vision applications accredited Global Top 20 by NIST, to automated insights monetization for Retailers, eKYC for financial institutions, AI-driven agricultural safety assurance, precision steel cutting, trading algorithms for hedge funds, and enterprise knowledge management systems based on AI. Our Aspiration We are data and AI pioneers, dedicated to enhancing the economic and social lives of our customers via technology. We are not just living in history, we are making history everyday. In becoming one of the world’s leading Data and AI companies, we always double-down on remaining a place where a diverse mix of talent wants to come, do their best work, and stay. We pride ourselves on bringing the best talent worldwide into a culture that encourages learning, growth opportunities, innovative contributions, and a sense of ownership. As part of Andersen Consulting, we are committed to delivering best-in-class Data and AI solutions—aligned with a global platform known for innovation, integration, and impact—while continuing to set benchmarks in the region and beyond. For more information, please visit: sertiscorp.com We’re looking for a hands-on Java Architect to lead the migration of legacy systems from Java 8 to Java 21. This role focuses on defining the migration approach, architecture decisions, and technical direction, while working closely with engineers to ensure smooth execution and system stability. *This is a fully remote role, working under US Time zone. In this role, you will get to: - Analyze and migrate existing Java 8 codebases to Java 21 - Review and refactor legacy code to align with modern Java standards - Identify and resolve compatibility and dependency issues - Ensure system stability, performance, and backward compatibility - Guide engineers on best practices and modernization approach - Collaborate with DevOps on build, CI/CD, and deployment - Optimize performance (JVM tuning, memory, scalability) - Support troubleshooting during and post-migration You’ll be successful if you have: - 4+ years of experience in backend development using Java - Strong hands-on experience with Java 8 and exposure to newer versions (Java 11, 17, or 21) - Experience working on Java upgrade or migration projects is strongly preferred - Solid understanding of modern Java features (Lambda expressions and Stream API, Java Date and Time API, Optional and null safety practices) - Experience with Spring or Spring Boot frameworks - Familiarity with dependency management tools (Maven or Gradle) - Strong understanding of object-oriented design principles - Experience with REST APIs and backend service development - Familiarity with version control systems such as Git - Strong debugging and problem-solving skills - Ability to work independently with clear ownership of tasks - Strong English communication skills both in written and spoken communication with the US team. - Willing to work remotely under the US time zones. It’s Nice If You Have: - Experience migrating large or legacy systems to modern Java versions - Familiarity with microservices architecture - Exposure to containerized environments (Docker, Kubernetes) - Experience working in fintech or high-transaction systems - Understanding of performance tuning and JVM optimization What this opportunity offers - Fully remote position (work from anywhere under the US time zones) - Opportunity to learn modern Java practices on a real migration project with senior mentorship. - Collaborative and supportive team environment. APPLY NOW!

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description We are looking for a QA Engineer with solid experience in Java-based test automation. You will be responsible for designing, writing, and executing automated test cases that validate the correctness of our Java backend systems, particularly throughout a legacy-to-modern Java migration project. In this role you must be comfortable reading both Java 8 legacy code and Java 21 modern code and writing automated tests using Java-based testing frameworks. Since the project involves migrating from Java 8 to Java 21, you will encounter both throughout the role. Strong English and US time zone availability are mandatory. - Design and implement automated test cases for Java backend services using frameworks such as JUnit, Selenium, or equivalent. - Read and understand Java source code to derive test cases and identify edge cases. - Develop and maintain regression test suites covering both legacy and migrated code. - Perform functional, integration, and regression testing across the application. - Collaborate with Java Developers to understand features, clarify requirements, and report defects with clear reproduction steps. - Set up and maintain test automation infrastructure (test runners, CI integration, reporting). - Track, document, and verify bugs through the complete defect lifecycle. - Provide quality metrics and test coverage reports to the team and stakeholders. Qualifications - 2–4 years of experience as a QA Engineer with at least 1–2 years in a Java-based testing environment. - Ability to read and understand Java 8 and Java 21 code. - Hands-on experience with one or more Java testing frameworks: JUnit 4/5, Selenium WebDriver, TestNG, or RestAssured. - Understanding of testing types: unit testing, integration testing, end-to-end testing, regression testing. - Familiarity with test management and defect tracking tools (Jira, TestRail, or similar). - Experience integrating automated tests into CI/CD pipelines (Jenkins, GitHub Actions, etc.). - Strong English communication skills both in written and spoken to communicate with the US team smoothly. - Willing to work remotely in the US time zones. Requirements - Experience testing REST APIs using tools like RestAssured, Postman, or similar. - Familiarity with performance/load testing tools (JMeter, Gatling). - Exposure to BDD frameworks such as Cucumber with Java. - Understanding of Spring Boot application structure for better test design. Benefits - Fully remote position (work from anywhere under the US time zones). - Opportunity to learn modern Java practices on a real migration project with senior mentorship. - Collaborative and supportive team environment.