CMC Markets

ML Ops / Data Engineer

CMC Markets  •  London, GB (Onsite)  •  3 months ago
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Job Description

ML Ops / Data Engineer

We’re hiring an ML Ops Engineer / Data Engineer to own the reliability, scalability, and operational integrity of our machine-learning systems in research & production. This role sits at the intersection of data engineering and ML infrastructure: you’ll design and operate data pipelines that feed models, and you’ll build the tooling that trains, deploys, monitors, and retrains them.

You’ll work closely with research engineers and product teams, taking models from experimentation to production-grade systems with clear SLAs, reproducibility guarantees, and observable behaviour. This is not a research role; it is a hands-on engineering role focused on making ML systems work reliably at scale.

What You’ll Work On:

ML lifecycle infrastructure

  • Productionizing models: packaging, deployment, versioning, and rollback

  • Designing CI/CD pipelines for ML (training → validation → deployment)

  • Implementing model monitoring (data drift, prediction drift, performance decay)

  • Managing experiment tracking and reproducibility

Data engineering foundations

  • Building and maintaining batch and near–real-time data pipelines

  • Ensuring data quality, schema evolution, and lineage across systems

  • Designing datasets and feature pipelines that support both training and inference

  • Operating pipelines with clear reliability and latency expectations

Operational ownership

  • Defining and meeting availability, latency, and freshness targets for ML services

  • Debugging production issues across data, infrastructure, and model layers

  • Improving system robustness through automation and observability

  • Collaborating with platform and security teams on access, secrets, and compliance

Engineering rigor

  • Writing production-grade Python used in long-running services and pipelines

  • Establishing testing, validation, and release practices for ML systems

  • Making trade-offs explicit between research flexibility and production stability

Required Qualifications

  • 3–7 years of professional experience in ML Ops, Data Engineering, or adjacent backend roles

  • Strong production Python skills (clean APIs, testing, performance awareness)

  • Experience deploying and operating ML models in production environments

Solid understanding of:

  • Model training vs. inference requirements

  • Batch vs. streaming data pipelines

  • Failure modes in data-driven systems

  • Hands-on experience with at least one modern orchestration or workflow system

  • Comfort working with cloud infrastructure and containerized workloads

  • Ability to reason about system design, not just tool usage

Nice-to-Have

  • Experience operating systems at TB-scale data volumes or higher

  • Prior ownership of model monitoring, drift detection, or automated retraining

  • Familiarity with feature stores or online/offline feature consistency problems

  • Experience supporting multiple models or teams on a shared ML platform

  • Exposure to regulated or high-reliability production environments

Tech Stack (Current & Expected Evolution)

  • Languages: Python (core)

  • ML & Data: PyTorch / similar frameworks, experiment tracking, structured datasets

  • Pipelines & Orchestration: Workflow schedulers for batch and near-real-time processing

  • Deployment: Containers, model serving frameworks, infrastructure-as-code

  • Observability: Metrics, logging, and alerting across data and model layers

  • Cloud: Managed compute, storage, and networking (provider-agnostic mindset)

The stack will evolve. We value engineers who understand why systems are built a certain way and can adapt tools as requirements change.

Why This Role Matters

Our models only create value when they are correct, observable, and dependable in production This role is responsible for that reality. You’ll reduce the gap between promising experiments and systems that can be trusted by downstream products and customers.

If you care about data correctness, operational clarity, and building ML systems that don’t silently fail, this role gives you direct leverage over the success of our entire ML platform.

CMC Markets is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of gender, sexual orientation, marital or civil partner status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability or age.

CMC Markets

About CMC Markets

CMC Markets is a global provider of online trading and investment services, with a comprehensive retail, professional and institutional offering. Established in 1989, we're headquartered in the City of London, with regional hubs in Australia, Bermuda, Canada, Germany, Singapore, and the United Arab Emirates. The company is listed on the LSE under the ticker CMCX and is a constituent of the FTSE 250 index.

Around the world, more than 1.5 million customers trade and invest with us*. Clients use our proprietary, award-winning online trading platforms and mobile apps**, plus MT4 and TradingView, to trade on thousands of financial instruments via spread bets (UK & Ireland only), contracts for difference (CFDs), and options. We offer transparent and competitive pricing, fast execution, and dedicated 24/5 customer service.

*1.621 million unique user logins for our invest and CFD platforms globally (August 2024).

**Best Mobile Trading Platform & Best Spread Betting & CFD Education Tools, ADVFN International Financial Awards 2025; No.1 for Commissions & Fees, No.1 Most Currency Pairs, Best-in-class for Overall Excellence, Mobile Trading App, Platform & Tools & Research, ForexBrokers.com Awards 2025.

Disclaimer: Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 67% of retail investor accounts lose money when spread betting and/or trading CFDs with this provider. You should consider whether you understand how spread bets, CFDs, OTC options or any of our other products work and whether you can afford to take the high risk of losing your money.

Professional clients: Countdowns carry risk to any capital invested. These products are not suitable for all investors. CMC does not endorse, control or take responsibility for any third party content on or linked to this account. Nothing in this material is (or should be considered to be) financial, investment or other advice on which reliance should be placed.

Industry
Finance & Insurance
Company Size
1,001-5,000 employees
Headquarters
London, GB
Year Founded
1989
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