Senior AI/ML Engineer

Archer; United States; On-site; USD 140,000 - 190,000; Full time

Job summary

Archer, in collaboration with Kainos, seeks a Senior AI Engineer to deliver advanced AI solutions using state-of-the-art ML, generative and agentic AI technologies. You will drive modern AI frameworks adoption and scalable cloud-native architectures, while mentoring engineers and ensuring responsible AI practices.

You will work closely with customers to translate business challenges into trustworthy AI solutions and contribute to a fast-paced, cross‑functional team culture that values innovation

Qualifications

• A minimum of a 2.1 degree in Computer Science, AI, Data Science, Statistics or similar quantitative field.

Responsibilities

• Deliver advanced AI solutions using state‑of‑the‑art ML, generative and agentic AI.
• Drive adoption of modern AI frameworks and scalable cloud‑native architectures.
• Mentor engineers and foster a culture of learning and engineering excellence.
• Collaborate with customers to translate business challenges into trustworthy AI solutions.
• Ensure responsible AI practices throughout development and deployment.

Skills

Python programming

CI/CD

Production AI deployment

Prompt engineering

RAG

Cloud platforms

Kubernetes

Docker

Data engineering for AI

Responsible AI

Interpersonal skills

Education

2.1 degree in Computer Science, AI, Data Science or related field

Tools

Kubernetes

Docker

PyTorch

TensorFlow

Job description

Archer is collaborating with Kainos to connect them with exceptional professionals for this role.

Senior AI Engineer

Job Profile Description

Kainos is recognised as one of the UK’s leading AI and data businesses, with a decade-long track record of delivering impactful, production-grade AI solutions for clients across government, healthcare, defence, and commercial sectors. Kainos is at the forefront of AI innovation, trusted by Microsoft, AWS, and others to deliver advanced AI and data solutions at citizen scale.

Our 150-strong AI and Data Practice brings together deep expertise in machine learning, generative AI, agentic AI and data. We are pioneers in responsible AI, having authored the UK government’s AI Cyber Security Code of Practice implementation guide and we partner with leading organisations to ensure AI is deployed ethically, securely and with measurable business value. Our teams are at the cutting edge of AI research, and delivery, it is truly an exciting team to join Kainos as we further grow our AI capability.

MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS:

As a Senior AI Engineer at Kainos, you will deliver advanced AI solutions leveraging state-of-the-art machine learning, generative and agentic AI technologies. You will drive the adoption of modern AI frameworks, AIOps best practices and scalable cloud-native architectures. Your role will involve hands‑on technical delivery, collaborating with customers to translate business challenges into trustworthy AI solutions and ensuring responsible AI practices throughout. As a technical mentor, you will foster a culture of innovation, continuous learning, and engineering excellence.

It is a fast-paced environment, so it is important for you to make sound, reasoned decisions. You will do this whilst learning about new technologies and approaches, with talented colleagues that will help you to develop and grow. You will support your colleagues and more junior developers, providing direction support as you solve challenging problems together.

Minimum (essential) Requirements

• A minimum of a 2.1 degree in Computer Science, AI, Data Science, Statistics or in a similar quantitative field.
• Demonstrable experience of deploying modern AI/ML solutions into production, including prompt engineering, retrieval‑augmented generation (RAG), model evaluation, and monitoring using metrics (e.g. precision, recall, NDCG and drift detection).
• Strong Python skills with a grounding in software engineering best practices (CI/CD, testing, code reviews etc).
• Experience developing solutions at scale on cloud platforms (Azure & AWS), containerisation and orchestration tools such as Kubernetes and Docker.
• Expertise in data engineering for AI: handling large-scale, unstructured, and multimodal data.
• Understanding of responsible AI principles, model interpretability, and ethical considerations.
• Strong interpersonal skills and team working.

Desirable

• Demonstrable experience with modern deep learning frameworks (e.g. PyTorch, TensorFlow), fine‑tuning or distillation of LLMs (e.g., GPT, Llama, Claude, Gemini), machine learning libraries (e.g. scikit‑learn, XGBoost).
• Experience with data storage for AI, vector databases, semantic search, and knowledge graphs.
• Contributions to open‑source AI projects or research publications.
• Familiarity with AI security, privacy, and compliance standards e.g. ISO42001.