JOB DETAILS
Senior Software Developer (1-Year Fixed Term) (Java/Javascript)
CompanyThoughtworks
LocationBangkok
Work ModeOn Site
PostedJanuary 20, 2026

About The Company
We are a global technology consultancy that delivers extraordinary impact by blending design, engineering and AI expertise.
For 30 years, our commitment to design-led thinking, engineering excellence and innovation means we prioritize people, build teams with strong technical foundations and embed AI into every step of the process – not just as a tool but as a mindset. It’s this approach that sets us apart, sparks bold ideas and empowers us to drive real, lasting innovation.
We’re not preparing for the future – we’re defining it.
About the Role
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<div class="description content">
<p><strong>"This position is offered as <em>a fixed-term employment contract </em>and will automatically conclude at the end of the contract period unless renewed. Renewal is subject to business needs and performance under Thailand's labor law."</strong></p>
<p>Senior Software Developers collaborate with Business and Quality Analysts, Designers, Project Managers and more to design software solutions that will create meaningful change for our clients. They listen thoughtfully to understand the context of a business problem and write clean and iterative code to deliver a powerful end result whilst consistently advocating for better engineering practices. By balancing strong opinions with a willingness to find the right answer, Senior Software Developers bring integrity to technology, ensuring all voices are heard.</p>
<p>For a team to thrive, it needs collaboration and room for healthy, respectful debate. Senior Developers are the technologists who cultivate this environment while driving teams toward delivering on an aspirational tech vision and acting as mentors for more junior-level consultants. You will leverage deep technical knowledge to solve complex business problems and proactively assess your team’s health, code quality and nonfunctional requirements.</p>
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<h2 id="job-responsibilities">Job responsibilities</h2>
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<ul>
<li>You will learn and adopt best practices like writing clean and reusable code using TDD, pair programming and design patterns.</li>
<li>You will use and advocate for continuous delivery practices to deliver high-quality software as well as value to end customers as early as possible.</li>
<li>You will drive the AI-first software delivery strategy by strategically integrating and utilizing AI tools throughout the development lifecycle to enhance productivity, ensure high-quality code and create capacity for more complex and creative problem-solving.</li>
<li>You will work in collaborative, value-driven teams to build innovative customer experiences for our clients.</li>
<li>You will create large-scale distributed systems out of microservices.</li>
<li>You will collaborate with a variety of teammates to build features, design concepts and interactive prototypes and ensure best practices and UX specifications are embedded along the way.</li>
<li>You will apply the latest technology thinking from our<a href="https://www.thoughtworks.com/radar" target="_blank" data-saferedirecturl="https://www.google.com/url?q=https://www.thoughtworks.com/radar&source=gmail&ust=1768373294402000&usg=AOvVaw1jKJBqYE7pHW9pThUTT5eI"> Technology Radar</a> to solve client problems.</li>
<li>You will efficiently utilize DevSecOps tools and practices to build and deploy software, advocating devops culture and shifting security left in development.</li>
<li>You will oversee or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between.</li>
<li>You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills.</li>
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<h2 id="job-qualifications">Job qualifications</h2>
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<h3 id="technical-skills">Technical Skills</h3>
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<li>You have more than 5 years of experience using Java and JavaScript with experience in object-oriented programming.</li>
<li>You have experience with CI/CD, open API and API & service design. </li>
<li>You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming.</li>
<li>You bring an open and thoughtful mindset toward AI, proactively integrating AI-assisted tools and methods into technical workflows to boost productivity and explore innovative solutions.</li>
<li>You are comfortable with Agile methodologies, such as Extreme Programming (XP), Scrum and/or Kanban.</li>
<li>You have a good awareness of TDD, continuous integration and continuous delivery approaches/tools.</li>
<li>Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker.</li>
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<h3 id="professional-skills">Professional Skills</h3>
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<li>You enjoy influencing others and always advocate for technical excellence while being open to change when needed. </li>
<li>Presence in the external tech community: you willingly share your expertise with others via speaking engagements, contributions to open source, blogs and more.</li>
<li>You are resilient in ambiguous situations and can approach challenges from multiple perspectives.</li>
</ul>
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<h2 id="important-things">Other things to know</h2>
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<h3>Learning & Development</h3>
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<p>There is no one-size-fits-all career path at Thoughtworks: however you want to develop your career is entirely up to you. But we also balance autonomy with the strength of our cultivation culture. This means your career is supported by interactive tools, numerous development programs and teammates who want to help you grow. We see value in helping each other be our best and that extends to empowering our employees in their career journeys.</p>
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<h2 id="about">About Thoughtworks</h2>
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<p>Thoughtworks is a dynamic and inclusive community of bright and supportive colleagues who are revolutionizing tech. As a leading technology consultancy, we’re pushing boundaries through our purposeful and impactful work. For 30+ years, we’ve delivered extraordinary impact together with our clients by helping them solve complex business problems with technology as the differentiator. Bring your brilliant expertise and commitment for continuous learning to Thoughtworks. Together, let’s be extraordinary.</p>
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<p style="display: none;">#LI-Onsite</p>
</div><div class="content-conclusion"><p style="text-align: center;"><a href="https://www.thoughtworks.com/careers/ai-policy-for-recruitment">See here our AI policy.</a></p></div>
Key Skills
JavaJavaScriptObject-Oriented ProgrammingCI/CDAPI DesignTDDAgileDevSecOpsMicroservicesAI IntegrationContinuous DeliveryExtreme ProgrammingScrumKanbanCloud TechnologyKubernetesDocker
Categories
TechnologySoftwareConsulting
Job Information
📋Core Responsibilities
Senior Software Developers collaborate with various stakeholders to design software solutions and advocate for better engineering practices. They mentor junior developers and oversee the entire software delivery cycle from ideation to deployment.
📋Job Type
full time
📊Experience Level
5-10
💼Company Size
12306
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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