Senior Consultant - Python GenAI Developer

We are looking for a passionate and skilled Python GenAI Developer with strong engineering fundamentals to join our growing AI/ML team. In this role, you will be responsible for building and scaling Generative AI solutions that solve real-world problems using state-of-the-art language models and machine learning frameworks.

Job responsibilities

• Design, develop, and deploy scalable Python-based applications leveraging Generative AI models (LLMs, diffusion models, etc.)
• Integrate LLM APIs (e.g., OpenAI, Anthropic, Cohere) and fine-tune open-source models using frameworks like Hugging Face Transformers
• Collaborate with data scientists and ML engineers to build robust pipelines for model training, evaluation, and inference
• Build prompt engineering strategies and tools to improve LLM performance for specific tasks
• Ensure code quality, maintainability, and reliability through solid software engineering practices: CI/CD, testing, documentation
• Optimize model performance for latency, memory, and compute usage in production environments
• Partner with product managers and designers to translate business needs into technical solutions
• 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
• You will work in collaborative, value-driven teams to build innovative customer experiences for our clients
• You will create large-scale distributed systems out of microservices
• 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.
• You will apply the latest technology thinking from our Technology Radar to solve client problems
• You will efficiently utilize DevSecOps tools and practices to build and deploy software, advocating devops culture and shifting security left in development
• You will oversee or take part in the entire cycle of software consulting and delivery from ideation to deployment and everything in between
• You will act as a mentor for less-experienced peers through both your technical knowledge and leadership skills

Job qualifications

Technical Skills

• Total work experience between 4-9 years , with minimum 4 years of relevant experience 
• Strong programming experience in Python with a deep understanding of object-oriented design and system architecture
• Hands-on experience with Generative AI models, prompt engineering, and/or fine-tuning LLMs
• Proficient with LangChain, LlamaIndex, FastAPI.
• Strong knowledge of RAG : Design and implement RAG pipelines using vector databases and hybrid search strategies (e.g., LangChain, LlamaIndex).
• Exposure to Vector DBs (e.g., FAISS, Pinecone, Weaviate) and retrieval-augmented generation (RAG)
• You have experience using one or more development languages (Java, Kotlin, JavaScript, TypeScript, Ruby, C#, etc.) with experience in Object-Oriented programming
• You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
• You are comfortable with Agile methodologies, such as Extreme Programming (XP), Scrum and/or Kanban
• You have a good awareness of TDD, continuous integration and continuous delivery approaches/tools
• Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker

Professional Skills

• Develop agentic workflows using frameworks like Microsoft Prompt Flow, LangGraph, or AutoGen for reasoning and task orchestration.
• Experience with streaming architectures and building real-time AI applications
• Contributions to open-source GenAI or ML projects
• Knowledge of front-end technologies (React, Streamlit, Gradio) for building interactive AI apps

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.

Onsite Work Expectation

You may be expected to work out of our Thoughtworks office or at our client's office location for all five working days of the week, depending on business or clients’ needs.

About Thoughtworks

Thoughtworks is a global technology consultancy that integrates strategy, design and engineering to drive digital innovation. For 30+ years, our clients have trusted our autonomous teams to build solutions that look past the obvious. Here, computer science grads come together with seasoned technologists, self-taught developers, midlife career changers and more to learn from and challenge each other. Career journeys flourish with the strength of our cultivation culture, which has won numerous awards around the world.

Join Thoughtworks and thrive. Together, our extra curiosity, innovation, passion and dedication overcomes ordinary.

See here our AI policy.