Senior AI Engineer

Thoughtworks; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

Thoughtworks is seeking a passionate AI engineer to design and deliver complex GenAI solutions. You will work autonomously on challenging technical problems, mentor junior engineers and champion engineering best practices.

Due to client security clearance, Singapore Citizens or PRs are required. You will design, build and deploy GenAI applications, collaborate with cross-functional teams, and continuously improve system performance and cost efficiency.

Qualifications

• Strong software engineering fundamentals with Python, CI/CD, testing, and version control.
• Ability to design AI-powered components or workflows with solid software design principles.
• Hands-on with at least one GenAI framework and one agentic framework.
• Experience building and optimizing RAG pipelines with vector databases.
• Familiar with deploying AI solutions on major clouds and using containers (Docker).
• Experience with LLMOps and observability tools in production.
• Exposure to ML/NLP frameworks such as PyTorch or Hugging Face Transformers.

Responsibilities

• Design, build and deploy GenAI applications using RAG, Agents, and Multi-Agent Systems from prototype to production.
• Collaborate with AI/ML engineers and software engineers to deliver reliable, scalable systems.
• Own key features or components, ensuring they are well-structured, efficient and maintainable.
• Make technical decisions and contribute to system design with attention to performance, cost and reliability.
• Collaborate with product managers, designers and data scientists to turn business needs into practical solutions.
• Share knowledge and mentor junior team members to grow their technical skills.
• Review code and provide clear, constructive feedback to peers.
• Understand deployment options and trade offs across cloud providers (AWS, Azure, GCP).
• Understand optimization techniques to improve GenAI accuracy, performance and cost.

Skills

Python

CI/CD

Unit tests

Git

AI design

GenAI frameworks

LangChain

LlamaIndex

Semantic Kernel

RAG pipelines

Vector DBs

FAISS

Pinecone

Weaviate

AWS/Azure/GCP

Docker

LLMOps

Observability tools

PyTorch

Hugging Face

Job description

We are looking for a passionate and skilled AI engineer who is responsible for designing and delivering complex generative AI solutions. This role requires the ability to work autonomously on challenging technical problems, provide mentorship to junior engineers and champion engineering best practices.

Due to the nature of the projects and specific client security clearance, this role requires the successful candidate to be a Singapore Citizen or PR of Singapore.

Job responsibilities

• Design, build and deploy GenAI applications using techniques such RAG, Agents, Multi Agent Systems etc., taking ideas from prototype to production.
• Work with both AI/ML engineers and software engineers to deliver reliable, scalable systems.
• Own key features or components, ensuring they are well-structured, efficient and easy to maintain.
• Make technical decisions and contribute to system design with attention to performance, cost and reliability.
• Collaborate with product managers, designers and data scientists to turn business needs into practical solutions.
• Share knowledge and mentor junior team members, helping them grow their technical skills.
• Review code and provide clear, constructive feedback to peers.
• Understand deployment options and trade offs across different cloud providers such as AWS, Azure, Google Cloud, etc.
• Understand optimization techniques to improve accuracy, performance and cost for GenAI applications.

Job Qualifications

Technical Skills

• Strong software engineering fundamentals, including Python, CI/CD, testing, version control and clean code practices.
• Solid grasp of software design principles and ability to design and implement AI-powered components or workflows.
• Experience with at least one GenAI framework (e.g., LangChain, LlamaIndex, Semantic Kernel) and one agentic framework (e.g., PydanticAI, LangGraph, AutoGen2).
• Hands-on experience building and optimizing Retrieval-Augmented Generation (RAG) pipelines with vector databases (e.g., FAISS, Pinecone, Weaviate).
• Familiarity with deploying AI solutions on major cloud platforms (AWS, Azure or GCP), with basic use of containers (Docker) and CI/CD pipelines.
• Experience using LLMOps and observability tools (e.g., Langfuse, PromptLayer, OpenTelemetry) in production.
• Exposure to fine-tuning and use of ML/NLP frameworks such as PyTorch or Hugging Face Transformers.

Professional Skills

• Ability to independently solve complex, ambiguous technical problems.
• Willingness and ability to guide and mentor junior engineers, sharing knowledge and best practices.
• Strong collaborative skills, working effectively with diverse, cross-functional teams.
• Thrives in a dynamic and fast-paced environment, demonstrating resilience in the face of challenges.

Other things to know

Learning & Development

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.

Responsible Use of AI in Recruitment

At Thoughtworks, we use AI tools to support our recruitment team with administrative tasks such as drafting communications, scheduling interviews and writing job descriptions.

Crucially, our AI tools do not screen, assess, rank or make hiring decisions. Every application is reviewed by our team and all selection decisions are made exclusively by our interviewers and hiring managers.

We are committed to fairness and responsible AI. We actively manage our AI systems by testing, monitoring for biased outcomes and implementing mitigation measures. We hold our third-party vendors to these same high standards through a rigorous governance process. For additional information, please see our full Thoughtworks AI Policy for Recruitment.

About Thoughtworks

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.

See here our AI policy.