Be at the heart of actionFly remote-controlled drones into enemy territory to gather vital information.

Apply Now

Senior ML Engineer - NLP

Mimecast
London
6 months ago
Applications closed

Related Jobs

View all jobs

Senior Machine Learning Engineer

Senior Machine Learning Engineer

Senior Machine Learning Engineer, Platform

Machine Learning Engineer

Machine Learning Engineer

Senior Machine Learning Scientist

Senior ML Engineer (NLP)

The driving force behind our Data Science and Machine Learning infrastructure at Mimecast

Embrace the incredible opportunities that lie within Mimecast, where innovation and impact converge. The cybersecurity industry is experiencing exponential growth, and by joining us, you'll be at the forefront of this ever-evolving landscape. The field is rapidly changing, as threat actors employ AI to scale up phishing and social engineering operations.

Why Join Our Team?

You'll have the chance to develop and utilise cutting-edge NLP models, empowering you to thwart these cyber villains and safeguard businesses and individuals alike. As a company that is well-established and committed to growth, we are actively expanding our ML team with a Senior ML Engineer role which is amongst the most senior roles in the team, directly reporting to the Director of Data Science. Join us on this exhilarating journey, where you'll shape the future of cybersecurity by developing large-scale NLP models that push the boundaries of innovation and make an indelible impact in protecting our digital world. – Hiring Manager

What you will do:

  • Research, develop and deploy state-of-the-art NLP models that are optimised for both accuracy and throughput
  • Work alongside other NLP enthusiasts and lead projects that result in production deployments for thousands of customers
  • Deploy NLP models in cloud environments (AWS SageMaker) through Jenkins
  • Use MLflow and other ML Ops applications to streamline ML workflows and adhere to data privacy and residency guidelines
  • Communicate your work throughout the team and related departments
  • Collaboration is a key factor of success. You will work in a team where everyone shares ownership and responsibility, everyone pushes one another to give the absolute best, and everyone tries to be a support for each other every day. You’ll also work with a variety of other teams, quickly and proactively establishing strong relationships with key stakeholders.
  • Mentor and guide junior members of the team, establish and champion best practices and introduce fresh ideas and concepts from the ever-evolving research world of NLP.

What we are looking for:

  • 8+ years of experience working in Data Science and/or ML, with 6+ years developing large-scale NLP systems that are deployed to production environments
  • Must have solid programming skills in Python, along with experience in using relevant tools and frameworks such as PyTorch, TorchServe and Huggingface.
  • Familiarity with ML Ops system design and working with ML platforms (preferably, AWS SageMaker) is a plus.
  • Strong analytical and problem-solving abilities, with a keen eye for detail and accuracy.
  • Curiosity and a strong growth mindset with a demonstrable history of learning quickly in a loosely structured, rapidly changing environment.
  • Excellent collaboration and communication skills.
  • At least a bachelor's degree in computer science or other fields including significant amount of machine learning modules.

What We Bring

Join our Data Science and Machine Learning team to accelerate your career journey, working with cutting-edge technologies and contributing to projects that have real customer impact. You will be immersed in a dynamic environment that recognizes and celebrates your achievements.

Mimecast offers formal and on the job learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members to sustain a healthy lifestyle, and importantly - working in cross functional teams to build your knowledge!

We believe in ‘growth that’s good, we have ‘a culture that cares’ and we are on a ‘mission that matters’.

Our Hybrid Model:We provide you with the flexibility to live balanced, healthy lives through our hybrid working model that champions both collaborative teamwork and individual flexibility. Employees are expected to come to the office at least two days per week, because working together in person:

  • Fosters a culture of collaboration, communication, performance and learning
  • Drives innovation and creativity within and between teams
  • Introduces employees to priorities outside of their immediate realm
  • Ensures important interpersonal relationships and connections with one another and our community!

#LI-GC1

Subscribe to Future Tech Insights for the latest jobs & insights, direct to your inbox.

By subscribing, you agree to our privacy policy and terms of service.

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

AI Recruitment Trends 2025 (UK): What Job Seekers Must Know About Today’s Hiring Process

Summary: UK AI hiring has shifted from titles & puzzle rounds to skills, portfolios, evals, safety, governance & measurable business impact. This guide explains what’s changed, what to expect in interviews, and how to prepare—especially for LLM application, MLOps/platform, data science, AI product & safety roles. Who this is for: AI/ML engineers, LLM engineers, data scientists, MLOps/platform engineers, AI product managers, applied researchers & safety/governance specialists targeting roles in the UK.

Why AI Careers in the UK Are Becoming More Multidisciplinary

Artificial intelligence is no longer a single-discipline pursuit. In the UK, employers increasingly want talent that can code and communicate, model and manage risk, experiment and empathise. That shift is reshaping job descriptions, training pathways & career progression. AI is touching regulated sectors, sensitive user journeys & public services — so the work now sits at the crossroads of computer science, law, ethics, psychology, linguistics & design. This isn’t a buzzword-driven change. It’s happening because real systems are deployed in the wild where people have rights, needs, habits & constraints. As models move from lab demos to products that diagnose, advise, detect fraud, personalise education or generate media, teams must align performance with accountability, safety & usability. The UK’s maturing AI ecosystem — from startups to FTSE 100s, consultancies, the public sector & universities — is responding by hiring multidisciplinary teams who can anticipate social impact as confidently as they ship features. Below, we unpack the forces behind this change, spotlight five disciplines now fused with AI roles, show what it means for UK job-seekers & employers, and map practical steps to future-proof your CV.

AI Team Structures Explained: Who Does What in a Modern AI Department

Artificial Intelligence (AI) and Machine Learning (ML) are no longer confined to research labs and tech giants. In the UK, organisations from healthcare and finance to retail and logistics are adopting AI to solve problems, automate processes, and create new products. With this growth comes the need for well-structured teams. But what does an AI department actually look like? Who does what? And how do all the moving parts come together to deliver business value? In this guide, we’ll explain modern AI team structures, break down the responsibilities of each role, explore how teams differ in startups versus enterprises, and highlight what UK employers are looking for. Whether you’re an applicant or an employer, this article will help you understand the anatomy of a successful AI department.