Lead Consultant.

Lead Consultant - Python Data Platforms - London (1-2 days onsite, hybrid) - Inside IR35 negotiable

Role Summary
We are looking for an experienced Lead Consultant with strong expertise in Python development and data platforms to join a strategic programme building a new AWS-based data platform for financial markets.
This role combines hands-on technical leadership with client-facing responsibilities. You will guide technical direction, ensure delivery quality, and oversee the design and build of scalable, cloud-native data solutions.

Key Responsibilities

• Lead the design and delivery of a new data platform in AWS, ensuring scalability, performance, and resilience
• Provide technical leadership and consultancy across multiple workstreams, guiding Python development and data engineering practices
• Oversee the integration and processing of financial market data feeds (transactions, trading, asset management, FX)
• Work with teams to design and maintain distributed data pipelines using Spark and Aurora PostgreSQL
• Act as a trusted advisor to business and technology stakeholders, translating business requirements into technical solutions
• Drive adoption of best practices in testing, CI/CD, Agile delivery, and cloud engineering
• Mentor and support engineering teams, ensuring delivery quality and alignment with the programme roadmap

Skills & Experience Required

• Proven track record as a Lead Consultant, Lead Engineer, or Technical Lead in financial services data platform projects
• Strong expertise in Python for data-intensive systems
• Deep understanding of financial market data (transaction feeds, asset management systems, trading platforms, FX)
• Experience with Apache Spark for distributed data processing
• Hands-on knowledge of Aurora PostgreSQL (or equivalent relational databases)
• Extensive experience with AWS cloud services for data platform builds
• Strong stakeholder engagement and consultancy skills, able to influence at senior levels
• Excellent communication, leadership, and mentoring abilities