Senior Technical Lead

Project description This is a strategic data engineering engagement with our client to architect and plan the migration of their entire data processing and ETL estate from Matillion to AWS Glue — a foundational shift in how one of the world's largest financial market infrastructure companies handles its data pipelines. During this Mobilisation Phase, you'll work jointly with engineering teams to reverse-engineer the existing landscape, design the target-state architecture across every layer (infrastructure, data processing, workflows, dependencies, and operating model), and build the detailed delivery blueprint that will greenlight the full-scale migration. The work is technically rich and highly collaborative: you'll review and validate job inventories spanning hundreds of ETL workflows, define reusable migration patterns and templates, design a validation and reconciliation framework, run a proof-of-concept to stress-test the approach, and navigate rigorous internal governance — from Architectural Significance Assessments through Architectural Review Boards to a formal Gate 1 decision. Responsibilities

• Target-state architecture design — define and own the target-state AWS architecture across compute, data, and orchestration layers
• HLD/LLD ownership — produce and own High-Level Design and Low-Level Design documentation for migration workloads
• ARB submissions — prepare and present architecture proposals to the Architecture Review Board for approval
• Technical decisions — make and document key technical decisions across the migration program, balancing trade-offs (cost, performance, scalability)

Pattern definition — define reusable architecture and migration patterns for use across teams/pods -Agentic AI framework architecture — design the architecture for the Agentic AI migration framework, including its integration with the broader technical landscape Skills Must have 5+ years experience hands-on experince with AWS Migration AWS Glue, Step Functions, Lambda, EventBridge — deep hands-on experience designing solutions using these core AWS services IaC (Terraform) — strong experience defining and managing infrastructure as code with Terraform Data platform architecture — proven experience architecting data platforms (data lakes, warehouses, pipelines) at scale PySpark — hands-on experience with PySpark for large-scale data processing CI/CD — experience designing and implementing CI/CD pipelines for infrastructure and data workflows AI/ML frameworks — working knowledge of AI/ML frameworks and their application within architecture design GitHub Copilot — practical experience using GitHub Copilot within development/architecture workflows Nice to have AWS certification (Data Analytics Specialty or Solutions Architect) Experience with BI tools (QuickSight, Tableau, Power BI) Infrastructure as Code experience (Terraform/CloudFormation) Industry experience relevant to your business Exposure to streaming data (Kinesis) or ML pipelines (SageMaker) experince in financial domain OtherLanguages English: C2 Proficient Seniority Senior London, United Kingdom of Great Britain and Northern Ireland Req. VR-124688 Strategy & Design Consulting (SI) BCM Industry 08/09/2026 Req. VR-124688