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Principal Developer

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*Thoughtworks Singapore will be shortlisting applicants who have a current right to work in Singapore i.e. Singapore Citizens and Singapore Permanent Residents only due to the nature of the business.

Principal Developers at Thoughtworks can wear many hats. Depending on the client situation, you could be playing the role of a technical advisor to senior client executives, guide and direct solution architecture for large technical programs of work or drive technical implementation hand-on with our delivery teams.

Principal Developers also provide strategic and tactical leadership on accounts, establishing and maintaining trusted advisor status through high-impact client interactions. By empowering Thoughtworker engagement through cultivating high-performing teams, you will continuously deliver undeniable value to our clients, contributing to the growth and scale of our evolving business. Ultimately, the health of an account is a reflection of the capability and efficiency that you cultivate.

Job responsibilities

  • You will champion and adopt best practices like writing clean and reusable code using TDD, pair programming and design patterns.
  • You will exemplify Thoughtworks’ technical excellence, thought leadership and capabilities to our clients and inside Thoughtworks.
  • You will act as a trusted technical advisor to your client by building key relationships and understanding the market and trends that could impact them.
  • You can sense opportunities for improvement and are comfortable proposing and leading systemic change in organizations.
  • You will assess client needs and develop the account strategy and proactive proposals needed to deliver value to our client.
  • You can speak to the value of our delivery and how it maps to client vision, goals, and initiatives.
  • You will continuously deliver undeniable value by ensuring the high performance of Thoughtworks teams on the account and proactively manage risk with the client.
  • You will cultivate Thoughtworker growth and development by encouraging feedback and fostering an inclusive, supportive team culture.
  • You will ensure security, privacy and legal compliance across the account.

Job qualifications

Technical Skills

  • Engineering Foundations: A strong background in Fullstack Development (Java/JS/GoLang), with the ability to write clean, high-performance code across multiple languages.
  • Cloud & Infrastructure as Code: Deep expertise in orchestrating environments within AWS/Azure/GCP, leveraging IaC with tools like Terraform to maintain modular and scalable infrastructure.
  • DevOps & Automation: Proven track record in designing sophisticated CI/CD pipelines with tools like GitLab/Jenkins/Bamboo and automating complex workflows using Python, Bash, or PowerShell.
  • Observability: Experience implementing comprehensive monitoring and logging strategies using industry-standard tools like Prometheus, Grafana, or the ELK stack.
  • Strategic Consulting: A background in solutioning or technical consulting, particularly within the Singapore Public Sector, is highly regarded.
  • Operational Excellence: Comfortable working in Agile environments, with a focus on presales support and defining long-term technical roadmaps.
  • You have a track record of managing the scope and shape of programs of work.
  • You have experience with account management, third-party contractual agreements, client management & pre-sales, client reporting, and keeping budgets in check, and up-selling.
  • You are comfortable he