Senior Technical Architect: Custody & Securities Platforms

Adecco (Portugal); City Of London; Hybrid; GBP 133,000 - 180,000; Full time

Job summary

Adecco is seeking a Senior Technical Architect for Custody & Securities Services in London. The role blends architectural leadership with hands-on design across large-scale post-trade platforms, including settlements, asset servicing, and transaction management.

Hybrid work model (3 days onsite / 2 days remote) applies. You will drive architecture strategy, governance and modernization, partnering with engineering, product and business stakeholders to ensure scalable, resilient solutions in a

Qualifications

• Senior Technical Architect with leadership in Custody/Securities Services architectures.

Responsibilities

• Lead solution architecture across custody and securities platforms.
• Design and deliver microservices and event-driven architectures.
• Define integration patterns using APIs, messaging and cloud-native services.
• Drive application modernization replacing legacy systems.
• Govern architecture standards for performance, resilience and security.
• Lead architecture reviews and governance activities including P2B.
• Align delivery with engineering teams and business stakeholders.
• Evaluate third-party platforms and support build-vs-buy decisions.
• Identify technical debt and plan long-term remediation.
• Create PoCs for new technologies and integration approaches.
• Explore AI/emerging tech to boost productivity and governance.

Skills

Technical Architecture

Solution Design

Financial Services Expertise

Architecture Governance

P2B / Permit to Build

Cloud Native / AWS

Agile / SAFe

Leadership

Education

TOGAF or comparable architecture certification

Tools

Java

Spring Boot

Kafka

IBM MQ

Solace

OpenAPI / REST APIs

AWS

Snowflake

Oracle

SQL

Job description

Adecco is seeking a Senior Technical Architect for Custody & Securities Services in London. The role blends architectural leadership with hands-on design across large-scale post-trade platforms, including settlements, asset servicing, and transaction management.

Hybrid work model (3 days onsite / 2 days remote) applies. You will drive architecture strategy, governance and modernization, partnering with engineering, product and business stakeholders to ensure scalable, resilient solutions in a