Lead API Solution Architect - Financial Services / Banking

Adecco; City Of London; Hybrid; GBP 80,000 - 100,000; Full time

Job summary

A leading recruitment firm seeks a Lead API Solution Architect for a 6-month hybrid contract in London. This senior role is tailored for those with strong technical leadership and deep API expertise in investment banking. You will define the enterprise API strategy and ensure secure integration across systems, focusing on performance and compliance with regulations.

Qualifications

• Proven leadership in large-scale API programmes.
• Expertise in REST, OAuth2, OpenAPI, and API security.
• Familiarity with banking processes and Open Banking standards.

Responsibilities

• Define and lead enterprise API strategy and architecture.
• Drive API adoption and governance across teams.
• Ensure secure, scalable integration with legacy and cloud systems.
• Maintain compliance with financial regulations.
• Monitor and optimise API performance and developer experience.

Skills

API leadership

API security

Stakeholder management

Strategic thinking

Tools

REST

OAuth2

OpenAPI

Azure

GCP

Kafka

IBM MQ

Job description

Overview

Lead API Solution Architect - Investment Banking - London (Hybrid) My client, a leading investment bank, is seeking a Lead API Solution Architect for a 6-month contract (inside IR35). This senior role requires strong technical leadership, deep API expertise, and experience in regulated environments.

Responsibilities

• Define and lead enterprise API strategy and architecture
• Drive API adoption and governance across teams
• Ensure secure, scalable integration with legacy and cloud systems
• Maintain compliance with financial regulations
• Monitor and optimise API performance and developer experience

Experience Required

• Proven leadership in large-scale API programmes
• Expertise in REST, OAuth2, OpenAPI, and API security
• Familiarity with banking processes and Open Banking standards
• Cloud (Azure/GCP), CI/CD, and integration tools (Kafka, IBM MQ)
• Strong stakeholder management and strategic thinking

If the role is of interest please apply with your updated CV