Senior Architect – API – 11247SR6

Proactive.IT Appointments Limited; Greater London; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

A recruitment agency is seeking a Senior Architect – API to lead architectural strategies within a digital transformation programme. The successful candidate will shape API-centric solutions and provide technical leadership for complex applications. Ideal applicants will possess extensive experience in enterprise architecture, with strong API and integration knowledge. This role offers a hybrid working model and a competitive salary package including a car allowance.

Benefits

Comprehensive rewards package

Flexible hybrid working model

Qualifications

• Extensive experience in enterprise and solution architecture, ideally within regulated environments.
• Proven track record designing API-centric solutions (REST, SOAP, GraphQL).
• Strong understanding of integration architectures and services-based delivery models.
• Solid knowledge of Java, .NET, SQL, and SOA environments.

Responsibilities

• Shape and execute architectural strategies aligned to enterprise transformation programmes.
• Champion an API-first design and guide the development of services-based architectures.
• Define and evolve event-driven architectures and messaging strategies.
• Provide technical leadership for large-scale applications from design to optimisation.

Skills

Enterprise Architecture

API-centric solutions

Integration Architectures

Microservices

Stakeholder Management

Tools

Java

.NET

SQL

WebSphere

JBoss

Datapower

Job description

11247SR6
£90k – 110k per year + + £7k car allowance + benefits

Senior Architect – API

Hybrid

This is a career-defining role for an architect who wants to make a real impact. You’ll join an innovative architecture team at the forefront of AI adoption, platform modernisation, and API-led transformation within the insurance industry.

As Senior Architect, you’ll provide technical leadership on complex, business-critical systems — guiding the design and delivery of scalable, secure, and future-ready solutions. Your expertise will be key to driving a shift towards services-based architectures, automation through APIs, and asynchronous, event-driven integration models.

What You’ll Do

• Shape and execute architectural strategies and roadmaps aligned to a major enterprise transformation programme.

• Champion an API-first design approach, guiding the development and governance of services-based architectures and reusable integration patterns.

• Define and evolve event-driven architectures and messaging strategies to power automation and connectivity across the enterprise.

• Provide technical leadership for large-scale, complex applications — from conceptual design to performance optimisation.

• Influence strategic decisions across cloud-native, SaaS, and on-premises environments.

• Collaborate with senior stakeholders, delivery teams, and other architects to ensure alignment with business objectives.

• Support proof-of-concepts, vendor evaluations, and the introduction of new technologies into the architecture landscape.

What We’re Looking For

• Extensive experience in enterprise and solution architecture, ideally within large-scale, regulated environments.

• Proven track record designing API-centric solutions (REST, SOAP, GraphQL) and implementing event-driven patterns.

• Strong understanding of integration architectures, microservices, and services-based delivery models.

• Solid knowledge of Java, .NET, SQL, and SOA environments, plus experience with modern frameworks (Spring, Hibernate, etc.).

• Hands-on experience with middleware technologies (WebSphere, JBoss, Datapower) and cloud-native platforms.

• Familiarity with SaaS platforms and asynchronous messaging solutions.

• Exceptional communication and stakeholder management skills, with the ability to influence at all levels.

• Insurance or financial services experience (including London Market) is a plus.

Why Join?

• Shape the architectural direction of a major digital transformation programme.

• Work with the latest AI, automation, and API technologies in a global business.

• Collaborate with a forward-thinking, supportive architecture community.

• Enjoy a flexible hybrid working model and a comprehensive rewards package.

Senior Architect – API

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website http://proactive.it/privacy-notice/