Senior ML Engineer (Reinforcement Learning)

Company: Applied Data Science Partners
Apply for the Senior ML Engineer (Reinforcement Learning)
Location: London
Job Description:

We are looking for a

Senior Machine Learning (ML) Engineer

who enjoys seeing their work used as part of ‘real‑life’ solutions. Not only will your work directly contribute to our client deliverables, but you will have the opportunity to see the process through from solution design to deployment, working in close collaboration with our wider team.

In short, you’ll form an integral part of our close‑knit team and will have the opportunity to directly contribute to the continued success of the business. We’re looking for someone with a co‑operative, can‑do attitude who can build high‑quality data science solutions.

If this sounds like you, we can’t wait to hear from you!

KEY RESPONSIBILITIES:

Actively contribute to the design, development, testing, and evaluation of data science solutions

Train and deploy state‑of‑the‑art machine learning and reinforcement learning models

Build AI systems using Large Language Models

Build processes for extracting, cleaning and transforming data (SQL / Python)

Ad‑hoc data mining for insights using Python + Jupyter notebooks

Present insights and predictions in live dashboards using Tableau / PowerBI

Lead the presentation of findings to clients through written documentation, calls and presentations

Actively seek out new opportunities to learn and develop

Be an example of data science best‑practice (e.g. Git / Docker / cloud deployment)

Contribute to proposals for exciting new data science opportunities

Provide direction and mentoring to more junior data scientists

KEY REQUIREMENTS:

Experience of presenting technical concepts to stakeholders

Experience of proactively contributing to the design, development, testing, and deployment of data science and AI solutions

Experience and understanding of applied machine learning techniques in Python (e.g. xgboost, regression, decision trees)

Practical knowledge and experience of developing AI solutions using advanced machine learning techniques (e.g. reinforcement learning, deep learning)

Experience of working collaboratively as part of a data science team, using tools like Git to adhere to established data science and AI best practices

Experience of using different analysis techniques to draw insight from data, using tools such as Python and SQL

Excellent Python, including relevant libraries for data analysis and machine learning (e.g. sklearn, Pandas, NumPy) and at least one deep learning framework

Excellent communication skills through written reports and presentations

Effective organisational skills e.g. planning, time management

Effective problem‑solving and analytical skills

High attention to detail

Ability to work independently and as part of a team

Strong foundation in mathematics and statistics

INTERVIEW PROCESS:Stage 1: 20 min video call with a member of the hiring team

Stage 2: 45 min live coding task

Stage 3: 90 min F2F interview in our London office

OUR BENEFITS:

Competitive compensation package including annual performance bonus

26 days of annual leave, 8 bank holidays plus your birthday off

BUPA Private Healthcare

Enhanced family leave

£1,000 annual development budget

Flexible hybrid working (2 days a week in our modern Shoreditch office)

Remote working from anywhere in the world for up to 4 weeks each year

Latest tech that suits your needs: high‑spec Windows machine or a MacBook

Free snacks and drinks, and regular team socials

Supportive entrepreneurial environment offering a ton of autonomy and opportunity to work on a variety of projects, technologies and industries

Join us and realise your full potential in a collaborative, forward‑thinking team, where your work will help shape the future.

OUR COMMITTMENT TO DEI:At ADSP, we are committed to fostering an inclusive hiring process and believe in creating an environment where all candidates have equal opportunities to succeed. If you require any reasonable adjustments during the application or interview process, please do not hesitate to reach out to us at careers@adsp.ai

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Posted: July 13th, 2026