Mission Critical Applications Limited
Senior Machine Learning Engineer
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Senior ML Engineer - Anomaly Detection
Description
Mission Critical Applications Limited (MCA) is a UK SME specialising in high-integrity applications for safety- and security-critical systems, with expertise in embedded and real-time systems, formal methods, secure systems (including CHERI) and networks.
The Role
This is a great opportunity to join MCA on a new R&D project. We're looking for an experienced ML engineer to lead the design and build of an anomaly-detection capability for a network security guardian product, taking a model from design through to a working, tuned implementation.
What You'll Be Doing
- Designing and training time-series anomaly-detection models on operational telemetry
- Reducing false positives while keeping real anomalies reliably detected
- Validating and tuning models against realistic operational baselines
- Working with the software engineering team to integrate models into a production-bound system
- Documenting model behaviour and limitations for independent review
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- Strong applied ML/time-series experience
- Comfortable defining and validating false-positive / false-negative trade-offs against operational targets
- Experience taking a model from prototype into a production or near-production pipeline
- Experience of embedding local AI into a stand-alone product (disconnected from the internet)
Desirable
- Applied ML experience in a security or monitoring context
Key Details
- Remote (UK-based), with occasional travel for events/meetings
- Contract or permanent employment considered
- Full-time or part-time (around 3 days a week expected)
- Contract agreed from November 2026, with the main engagement from January 2027 for 8 months, and the potential to continue beyond that
- Reports to the Principal Investigator
- Compensation: competitive, commensurate with experience, discussed directly with candidates
What We Offer
- Remote, flexible working within a small, highly experienced engineering team
- Hands-on work with CHERI capability-based hardware, a UK-led secure computing technology
- A new R&D project taken from early design through to a working prototype
- The potential to continue with MCA beyond the initial engagement
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Eligibility
- You must be based in the UK and have the right to work in the UK. Any offer is subject to right-to-work checks and satisfactory references, and may be subject to further security checks given the nature of the work.
How to Apply
Send a CV and covering letter to info@mca-ltd.com outlining relevant experience, quoting reference MCA-MLE-2026. Applications are reviewed on a rolling basis; closing date Sunday 1 November 2026.
MCA is an equal opportunities employer. We welcome applications from all suitably qualified people, whatever their background. If you need any adjustments to the application or interview process, please tell us when you apply. We use your information only to assess your application, handle it in line with UK data protection law, and delete it if your application is unsuccessful unless you agree we may keep it for future roles.
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