Full job descriptionTechnical Architect - Capital Markets / Custody Technology
Location: London (Hybrid - 3 days per week in office)
Contract: 12 Months
Rate: £750- £850 per day (Inside IR35 via umbrella)
A leading global financial services organisation is seeking an experienced Technical Architect to support a large-scale technology modernisation programme across its Custody and Securities Services platform.
This is a senior architecture role focused on designing scalable, event-driven solutions across areas including Securities Settlements, Corporate Actions, Transaction Management, Tax Processing, and Cash & FX. You’ll act as the technical authority within delivery teams, driving architecture strategy, governance, and engineering best practice.
Key Responsibilities
*Design modern microservices and event-driven architectures using technologies such as Kafka, REST APIs and cloud platforms.
*Lead architecture governance, technical reviews, non-functional requirements, and technical debt management.
*Partner with Product, Business and Engineering teams to translate complex business requirements into scalable technical solutions.
*Define integration patterns across enterprise platforms, market infrastructure and cloud data environments.
*Build Proof of Concepts (PoCs) and evaluate emerging technologies, including Generative AI solutions.
*Support build-vs-buy decisions and third-party technology assessments.
Required Experience
*Extensive experience as a Technical Architect within Capital Markets, Securities Services, Custody or Investment Banking environments.
*Strong knowledge of one or more domains including:
*Securities Settlements
*Corporate Actions
*Transaction Management
*Tax Operations
*Cash & FX Processing
*Strong software engineering background in Java, Spring Boot, Oracle and SQL databases.
*Proven experience with:
*Microservices architecture
*Event-driven systems (Kafka, MQ, Solace)
*API design and integration
*AWS and/or Snowflake
*Knowledge of SWIFT MT, ISO 20022 and post-trade processing workflows.
*Experience operating within enterprise architecture governance frameworks.
Desirable
*TOGAF or ArchiMate certification.
*Experience with Generative AI, AI-assisted tooling, and architecture PoCs.
*Exposure to Agile delivery environments (Scrum, SAFe, Kanban).
This is an excellent opportunity for a senior architect to play a key role in a strategic transformation programme within a highly complex and regulated financial services environment.