Principal Integrations Engineer

Aztec; Southampton; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in Southampton is seeking a Principal Integration Engineer. In this senior-level role, you will be responsible for developing high-quality integration solutions using C#/.NET, SQL, and the MuleSoft Anypoint Platform, supporting essential business processes across various applications. Candidates should have significant experience in integration development and a strong understanding of security best practices. This position offers a chance to drive innovation and excellence in a rapidly evolving technology landscape.

Qualifications

• 5+ years’ experience in integration development, preferably in an enterprise environment.
• Hands-on experience with MuleSoft Anypoint Platform.
• Understanding of security best practices.

Responsibilities

• Design, build, and maintain integration solutions.
• Deliver secure and scalable client data exchanges.
• Provide Level 2/3 support for integration incidents.

Skills

C#/.NET

SQL

MuleSoft Anypoint Platform

Azure Integration Services

DevOps practices

Data formats (JSON, XML, CSV, SOAP, REST)

Education

Bachelor’s degree in Computer Science or related discipline

Tools

Azure Data Factory

Git

SSIS

Job description

This is a senior-level technical engineering role within the Markets Technology Services team. The Principal Integration Engineer will play a central role in delivering and supporting enterprise-grade integrations across Aztec’s private markets application landscape — including eFront, Yardi, Medius, Databricks, and key reporting, analytics, and investor services platforms.

Using a modern Microsoft and MuleSoft-based integration stack — including C#, .NET, SQL, SSIS, Azure Data Factory, Azure Integration Services, and the MuleSoft Anypoint Platform — you will develop secure, scalable, and maintainable integrations that underpin Aztec’s high-touch, high-tech operating model.

This is a hands-on role with strategic importance in delivering automation, straight-through processing, and enterprise data sharing at scale

Key responsibilities:

Integration Development & Delivery

• Design, build, and maintain high-quality integration solutions using C#/.NET, SQL Server, SSIS, Azure Data Factory, Azure Integration Services, and MuleSoft
• Develop APIs, reusable connectors, and pipelines across systems such as eFront Invest/Debt, Yardi Voyager, Medius, Databricks, and structured reporting environments
• Support both real-time and batch integrations for business-critical processes across investor onboarding, fund accounting, cash processing, and reporting

Client Connectivity & Data Exchange

• Deliver secure, scalable client data exchanges through:
  • SFTP for scheduled extracts and uploads
  • Delta Data Sharing (DDS) via Databricks
  • RESTful APIs for direct client system integrations
• Configure and support industry specific third-party data exchange platforms such as GoConnect and Atlas, aligning with Aztec’s standardised data model and client delivery framework

Integration Platform Support

• Design and maintain MuleSoft APIs, flows, and reusable components via Anypoint Studio
• Administer API Manager, monitor platform health, and enforce security policies aligned with enterprise architecture standards
• Collaborate with solution architects and enterprise architects to ensure alignment with broader integration architecture and roadmap
• Work collaboratively with:
• Integration engineers across the wider Technology department to ensure consistency and reusability
• Application and platform owners across Markets and Enterprise services
• Data and reporting engineers to deliver integration-enabled data pipelines and automation

Operational Support & Documentation

• Provide Level 2/3 support for integration incidents and system interoperability issues
• Maintain and enforce technical documentation and support procedures for all integrations under your remit
• Ensure adherence to Aztec’s standards for security, audit, and regulatory compliance (e.g. GDPR, ISO27001, SOC2)

Skills, Knowledge, and Experience

• 5+ years’ experience in integration development, preferably in an enterprise environment
• Hands-on experience with MuleSoft Anypoint Platform (API design, API Manager, DataWeave transformations, RAML/Swagger specifications)
• Good understanding of integration design patterns (API-led connectivity, synchronous/asynchronous messaging, batch)
• Proven experience developing secure, scalable integrations between SaaS, on-prem, and cloud-based systems (e.g., eFront, Yardi, Investran, Quantios)
• Familiarity with DevOps practices and tools (e.g., Azure DevOps)
• Knowledge of data formats and standards (JSON, XML, CSV, SOAP, REST, GraphQL)
• Understanding of security best practices (OAuth2, JWT, TLS/SSL, API gateways)
• Strong working knowledge of:
• C# and .NET
• SQL Server and T-SQL
• Git for source control and CI/CD collaboration
• Experience integrating or supporting data exchange with:
• eFront Invest and FIS Investran ( fund accounting)
• Quantios / TrustQuay (entity management and company secretarial systems)
• Workiva (financial reporting and controls)
• Anaplan (for complex waterfall modelling and financial forecasting)
• Backend database knowledge of eFront Invest — including table structure, relationships, and data lineage — would be a significant advantage.

Personal Attributes

• Logical and methodical approach to integration design and problem-solving
• Comfortable navigating complex business domains and translating them into robust technical solutions
• Collaborative, proactive, and capable of engaging across stakeholders with varying technical knowledge
• Highly delivery-focused and able to manage multiple priorities in a fast-moving environment

Qualifications

• Bachelor’s degree in Computer Science, Information Systems, or a related discipline
• Exposure to enterprise architecture frameworks (e.g. TOGAF) and security standards is beneficial
• Certifications in relevant tools, platforms, or cloud services (e.g., Azure, API/middleware platforms) are an advantage

This role provides an opportunity to lead the evolution of Aztec’s technology landscape, driving innovation and operational excellence in a fast-growing, client-focused environment. As Enterprise Solution Architect, you will have a significant impact on Aztec’s digital transformation journey, shaping the future of financial services technology