API Platform Owner

St. James’s Place plc; United Kingdom; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading financial services firm is seeking an API Platform Owner to oversee its MuleSoft enterprise API platform. The role involves managing the platform's roadmap, ensuring alignment with integration strategies, and collaborating with various stakeholders. The ideal candidate is expected to have expert knowledge of MuleSoft Anypoint, experience in CI/CD and DevOps, and excellent interpersonal skills. The position offers a competitive package, enhanced by a discretionary bonus scheme and multiple life-stage benefits.

Benefits

Discretionary annual bonus

28 days annual leave plus bank holidays

Competitive parental leave

Qualifications

• Experience of owning an API platform roadmap with alignment to strategies.
• Familiarity with security standards such as OAuth 2.0 and TLS.
• Strong knowledge of Agile and Waterfall methodologies.

Responsibilities

• Own the API platform roadmap ensuring alignment with digital strategies.
• Define and enforce API governance and best practices.
• Collaborate with stakeholders to support successful integration delivery.

Skills

Expert knowledge of MuleSoft Anypoint Platform

Strong understanding of API-led connectivity principles

Experience with CI/CD and DevOps pipelines

Strong interpersonal skills

Ability to mentor junior team members

Education

MuleSoft Certified Platform Architect / Integration Architect

Job description

Posted on: 22/12/2025 – Application Deadline: 06/01/2026

Are you ready to chart your own career path? With our refreshed strategy, we’re building on our rich heritage and transforming our business to be more scalable and efficient, unlocking the capabilities needed for future success.This includes significantly investing in technology, streamlining the way we work and creating an environment where colleagues feel engaged, empowered and accountable; where they can show up, speak up and perform - because we believe in the difference our work makes.

At a glance:

Location: Cirencester Office

Workplace Type:

Employment Type: Permanent

Seniority: Mid-Senior Level

The Change, Digital & Delivery division is responsible for driving business growth at SJP by delivering strategic change, optimising core processes, and enhancing experiences for clients, Partners, and employees. The division oversees the successful delivery of key programmes and projects, ensures our technology platforms are secure and high-performing, and manages critical third-party suppliers. Acting as a key enabler of transformation, it plays a central role in building the systems and capabilities that power the future of the business.

The API Platform Owner (MuleSoft) is responsible for the governance, evolution, and operational excellence of St. James’s Place’s enterprise API platform (currently MuleSoft). The role ensures the MuleSoft Anypoint platform delivers secure, scalable, and reliable integration capabilities that underpin digital transformation and strategic business initiatives. You represent the platform, defining standards, driving adoption, and ensuring maximum value realisation from SJP’s investment.

The role holder will work closely with Integration Architects, Data Architects and our development partners, building and maintaining relationships with external and internal stakeholders to support successful delivery of integrations using the Platform. They will also keep abreast of key developments that could impact our systems as well as changes in tools, technologies or working practices that can be exploited to improve the services we deliver and have responsibility for Business Continuity, ensuring adherence to all SJP cloud and SJP IT policies, and working closely with the Cyber team to ensure data and application security where appropriate.

What you’ll be doing

• Owning and maintaining the API platform roadmap, ensuring alignment with SJP’s integration, technical and digital strategies.
• Defining, implementing, and enforcing API governance, design standards, and lifecycle management best practices across the enterprise.
• Proactively communicating and collaborating with external and internal stakeholders and provide appropriate business challenge as required and to deliver the change that they have prioritised.
• In conjunction with the Development Team Lead, overseeing and effectively prioritising the backlog for platform change.
• Being accountable for management of the MuleSoft platform environment(s) including CloudHub, Runtime Fabric, and Anypoint Exchange, ensuring availability, scalability, and security.
• Partnering with delivery teams to enable API-led connectivity, supporting solution design and platform onboarding.
• Acting as subject matter expert for MuleSoft licensing, capacity management, upgrades, and technical optimisation, working closely with vendor technical support.
• Collaborating with Architecture, Security, and DevOps to ensure compliance with SJP’s IT and data governance policies.
• Driving platform adoption through evangelism, training, and best practice sharing across development and business teams.
• Continuously measuring and improving platform performance, usage, and ROI metrics.

Who we’re looking for:

We’re looking for an experienced API Platform that will ensure that the design principles are adhered to and ensure we deliver the right solution to our clients and partners whilst sticking to the defined roadmap

• Experience of owning an API platform roadmap, ensuring with alignment integration, technical and digital strategies.
• Expert knowledge of MuleSoft Anypoint Platform, including API Manager, Exchange, Runtime Manager, and Anypoint Monitoring.
• Strong understanding of API-led connectivity principles, integration patterns, and microservice architectures.
• Experience with CI/CD, DevOps pipelines, and automated deployment for MuleSoft applications.
• Familiarity with security standards (OAuth 2.0, OpenID Connect, TLS, etc.) and governance frameworks.
• Strong knowledge in building long-term relationships across stakeholders and third party suppliers.
• Strong knowledge of Agile and Waterfall methodologies.
• Experience developing, coaching, and mentoring junior team members.
• MuleSoft Certified Platform Architect / Integration Architect.

What's in it for you?

We reward you for the work you do, whether that’s through our discretionary annual bonus scheme that reflects both personal and company performance, competitive annual leave allowance (28 days plus bank holidays, with the option to purchase an additional 5 days), or online rewards platform with a variety of discounts.
We also have benefits to support whatever stage of life you are in, including:

• Competitive parental leave (26 weeks full pay)
• Private medical insurance (optional taxable benefit)
• 10% non-contributory pension (increasing with length of service)

Reasonable Adjustments
We’re an equal opportunities employer and want to ensure our recruitment process is accessible and inclusive for all, if you require reasonable adjustment(s) at any stage please let us know by emailing us at [e-mail]
Research tells us that applicants (especially those from underrepresented groups) can be put off from applying for a role if they do not meet all the criteria or have been on an extended career-break. If you think you would be a good match for this role and can demonstrate some transferable experience please apply, regardless of whether you tick every box.

What's next?

If you're excited about this role and believe you have the skills and experience we're looking for, we'd love to hear from you! Please submit an application by clicking ‘apply’ below and our team will be in touch.
As a business regulated by the FCA we would advise you to familiarise yourself with the conduct regulations and in particular consumer duty obligations prior to an interview with SJP.