Senior Software Engineer
Summary
Build and lead scalable AI-driven software solutions using JavaScript/Node.js, React/Next.js, and cloud tools like AWS/GCP, owning full SDLC from design to deployment.
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.
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Our mission is to develop products and technology that serves the needs of our diverse clients. What you will bring to the table is more than just your technical skills, your unique perspectives and ideas will help us create better products and services.
We are looking for a Senior-Lead Software Engineer to design, develop, and own software solutions end-to-end, while also taking on meaningful responsibility for the reliability, scalability, and operational health of the systems we build. This role is a blend of hands-on software engineering and site reliability engineering, you'll be building features and systems, but you'll also be expected to think about how those systems behave in production, respond when things break, and help harden them against failure. You'll work across the full software development life cycle (SDLC), from requirements gathering and system design through to testing, deployment, and ongoing operational ownership with the autonomy and experience to lead technical decisions, not just execute on them.
In this role, you will get to:
- Design and write clean, well-structured, and testable code that sets the standard for the team, with a strong eye toward application performance, scalability, and maintainability
- Lead code reviews, setting the bar for code quality and giving thoughtful, constructive feedback that raises the team's overall standard
- Design, build, and evolve services with an eye toward reliability including monitoring, alerting, and incident response, not just feature delivery
- Design, build, or operate microservices and distributed systems, reasoning through service boundaries, data consistency, and failure handling
- Take ownership of infrastructure and deployment strategy for the systems you build including evaluating cloud services, managing cost vs. performance trade-offs, and (ideally) managing infrastructure as code
- Respond to and lead investigation of production incidents, communicate risk and trade-offs clearly to the team and stakeholders under pressure, and drive root-cause fixes rather than short-term workarounds
- Translate ambiguous business requirements into clear technical direction, and work closely with engineering stakeholders to shape what gets built
- Architect and develop features and solutions using our tech stack, making informed trade-offs between tools and approaches
- Debug and troubleshoot complex, ambiguous issues
- Drive clear communication across the team, take ownership of project timelines, and help unblock others when priorities shift
- Champion and help evolve the software development life cycle and internal engineering processes
- Mentor and support junior and mid-level engineers, helping them grow their technical skills and judgment
You'll be successful if you have:
- Bachelor's or Master's Degree in Computer Science, Computer Engineering, or a related field
- Strong development skills with at least 5 years of hands-on experience, including experience owning projects end-to-end
- Strong working knowledge of JavaScript and Node.js, with solid, hands-on experience in frameworks such as Next.js, React.js, or Express
- Comfortable scripting and operating in a Linux environment
- Strong understanding of infrastructure and CI/CD tools such as AWS, Google Cloud, Jenkins, or similar, with experience designing or improving CI/CD pipelines
- Hands-on experience with technologies such as Firebase, Docker, Nginx, PostgreSQL, MongoDB, Kubernetes, or Socket, we don't expect mastery of every tool, but solid working experience with several and the ability to pick up others quickly
- Real experience with infrastructure and CI/CD tooling (Jenkins, GitLab CI, GitHub Actions, or similar), and exposure to Infrastructure as Code (Terraform, CloudFormation, or similar)
- Exposure to (or strong interest in growing into) SRE practices, monitoring/observability, incident response, on-call processes, and postmortems
- A track record of learning new tools and platforms across software development and data engineering, and a good sense of when to introduce them
- We are not picky about specific technologies, but we do value deep understanding of SDLC principles and sound architectural judgment
- Thai National or currently based in Bangkok
- Strong proficiency in English both speaking and writing
What you are like:
- Open-minded, receptive to feedback, and able to give feedback constructively to others
- A team player who enjoys collaborating, mentoring, and contributing ideas
- Creative and solution-oriented, you bring suggestions and technical direction to the table, not just problems
- A "can do, will do" attitude, ready to take ownership of new challenges and guide others through them
- Comfortable with ambiguity, adaptable in a fast-moving environment, and able to bring structure to it
APPLY NOW!
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