Principal Architect - United Kingdom

  • Persistent Systems Limited
  • 28/07/2026
Full time Information Technology Telecommunications

Job Description

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.

Responsibilities
  • Develop and Implement AI Models: The AI Developer will be responsible for developing and implementing AI models using OpenAI's Codex and other AI tools.
  • Tool Development: They will be responsible for developing tools for generative AI models.
  • Data Analysis: They will be responsible for analyzing and interpreting complex datasets to improve model performance.
  • Collaboration: They will work closely with other team members, including data scientists and engineers, to develop and implement AI solutions.
Required Skills
  • Proficiency in OpenAI's Codex: The candidate must have a deep understanding and hands-on experience with OpenAI's Codex. They should be able to use this AI system to translate natural language to code effectively.
  • Tool Development for Generative AI: The applicant must have experience in developing and implementing tools for generative AI models. They should be able to create tools that can generate new data that is similar to the input data.
  • Strong Programming Skills: The candidate must have strong programming skills in languages such as Python, Java, or C++. They should be able to write efficient code and have a good understanding of data structures and algorithms.
  • A Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field is required.
Preferred Skills
  • Knowledge of Machine Learning Algorithms: Familiarity with various machine learning algorithms like linear regression, decision trees, SVM, etc.
  • Experience with Deep Learning Frameworks: Experience with frameworks like TensorFlow, PyTorch, or Keras.
  • Familiarity with Natural Language Processing: Understanding of NLP techniques and libraries like NLTK, SpaCy, etc.
  • Knowledge of Cloud Platforms: Experience with cloud platforms like AWS, Google Cloud, or Azure.
  • Understanding of Computer Vision: Familiarity with computer vision techniques and libraries like OpenCV.
  • Experience with Big Data Tools: Experience with big data tools like Hadoop, Spark, or Hive.
  • Knowledge of Reinforcement Learning: Understanding of reinforcement learning techniques and algorithms.
  • Familiarity with Robotics: Experience with robotics and robotic process automation (RPA) tools.
  • Understanding of Neural Networks: Knowledge of neural network architectures like CNN, RNN, etc.
  • Experience with SQL and NoSQL Databases: Familiarity with databases like MySQL, MongoDB, etc.

Location: London

Experience: 15+ years

Job Type: Full Time Employment

Mandatory Mention 3 skills: Investment Banking, Tool Development for Generative AI, Data Analysis.

Competitive salary and benefits package

Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications

Opportunity to work with cutting-edge technologies

Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards

Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment:

Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

  • We support hybrid work and flexible hours to fit diverse lifestyles.
  • Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
  • If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind."