6 senior platform engineer jobs found in London

Senior ML Platform Engineer London Rate: £650- £750 Per Day Outside IR35 Work Type: In office 5 days a week Start: ASAP This is an opportunity to take ownership of a critical ML platform used day to day by data, machine learning, and robotics engineers. You will work on real production systems that sit at the heart of data capture, dataset creation, and model training, with a clear focus on building reliable, well engineered tooling that unblocks entire teams. The Company They are a technology-driven organisation building a sophisticated platform at the intersection of machine learning, data infrastructure, and robotics. The environment is highly collaborative, bringing together software engineers, ML specialists, and robotics engineers to solve complex, real world problems. Engineering quality, clarity of ownership, and practical impact are core to how they operate. The Role and Deliverables * Own and extend the core platform layer,...

🔥 Senior / Lead Data Engineer – Databricks / Spark (High-Performance Platform) £850 p/d OUTSIDE IR35 (higher for Lead) 12-month rolling (multi-year programme) 1 day/week – St Paul’s, London We’re hiring a Senior & Lead Data Engineer to build a Databricks lakehouse platform in a high-performance, business-critical Front office trading environment . This is a hands-on engineering role focused on building and optimising large-scale distributed data systems . This is a highly technical team operating at scale, we’re looking for engineers with deep data engineering expertise, strong low-level Spark knowledge , and experience building high-performance systems using modern Databricks and AI-driven platforms. . What you’ll do Build and optimise Spark pipelines on Databricks Develop a lakehouse platform (Medallion architecture) Own data modelling, architecture, and pipeline design Work with large-scale data (TB–PB) Drive performance,...

Chief Architect Location: UK or Ireland (regular travel required) Type: Full-time | Initial 3–6 month contract with potential to become permanent £650-£700pd + Dependent on experience  (Outside IR35) Overview A technology organisation in the public sector space is looking for a Chief Architect to define and lead its end-to-end platform architecture. You’ll set technical direction, ensure systems are secure and scalable, and align architecture with business and product strategy. Key Responsibilities Define and own enterprise architecture strategy and standards Lead design reviews and govern architectural decisions Ensure scalable, resilient, and secure system design Drive cloud-native, microservices, API, and data architecture adoption Maintain platform consistency across regions and teams Collaborate with engineering, product, and senior stakeholders Mentor engineers and promote best practices Skills & Experience 10+ years in software engineering,...

Full job description About the Role Join our mission-critical data team supporting defence intelligence workflows. You’ll leverage Palantir Foundry and Python to build robust, secure data pipelines that power analytic apps for senior leadership and A-level decision-makers.   Day rate:  £700/day Outside IR35 (negotiable dependent on experience)   Key Responsibilities Design, implement and maintain data ingestion pipelines into Foundry Ontology. Develop Python/PySpark transforms to clean, enrich, and aggregate high-volume datasets. Collaborate with InfoSec to enforce security policies: ACLs, encryption, audit trails. Integrate Foundry workflows with external CI/CD tools; maintain code quality via unit tests and peer reviews. Troubleshoot performance bottlenecks in Spark and optimize cluster configurations. Mentor junior engineers and drive best practices in code documentation and data governance....

Costello & Reyes Group Ltd has been engaged by its client, an international Pharma firm, to identify an SC Cleared Security Architect Lead for an initial 6 month engagement ( with a likelihood to extend). The Security Architect Lead will be responsible for leading the design and implementation of a Zero Trust Architecture (ZTA) framework aligned to NIST SP 800-207 Zero Trust Architecture principles. This is a strategic role focused on enhancing the organisation's security posture by implementing identity-centric, policy-driven access controls across a hybrid and cloud-first environment. Acting as the key interface between senior client stakeholders and subject matter experts (SMEs), the successful candidate will ensure that architectural decisions are robust, aligned to best practice, and deliverable within the organisation's technical and operational landscape. YOU WILL NEED TO HOLD VALID SC CLEARANCE Key Responsibilities Lead the end-to-end design and delivery...

About the Role Join our mission-critical data team supporting defence intelligence workflows. You’ll leverage Palantir Foundry and Python to build robust, secure data pipelines that power analytic apps for senior leadership and A-level decision-makers. Day rate: £700/day Outside IR35 (negotiable dependent on experience) Key Responsibilities Design, implement and maintain data ingestion pipelines into Foundry Ontology. Develop Python/PySpark transforms to clean, enrich, and aggregate high-volume datasets. Collaborate with InfoSec to enforce security policies: ACLs, encryption, audit trails. Integrate Foundry workflows with external CI/CD tools; maintain code quality via unit tests and peer reviews. Troubleshoot performance bottlenecks in Spark and optimize cluster configurations. Mentor junior engineers and drive best practices in code documentation and data governance. Required Qualifications 3 + years’ experience in a Foundry heavy...