Principal Enterprise Integration Architect – ESB, API, Event-Driven

HumanIT Digital Consulting

Principal Enterprise Integration Architect in charge of governance and standards for IT operations. Focused on enterprise architecture strategy and integration across multi-system environments.

Posted 6/18/2026full-timeRemote • 🇵🇹 PortugalLeadWebsite

Tech Stack

Tools & technologies

AzureCloudETLGraphQLGRPCKafkaMicroservicesRabbitMQ

About the role

Key responsibilities & impact

You'll be embedded in the IT Operational Excellence Department (IT OPEX) — the centralised control point for IT strategy, governance, and standards across a scaling product landscape.
Your mandate is to fill a critical architectural gap: while ESB/middleware teams handle inter-domain routing, you take definitive ownership of intra-domain architecture and local system communications, ensuring decentralised product teams build integrations that are scalable, secure, and consistent — eliminating brittle point-to-point connections and preventing technical debt before it accumulates.

Requirements

What you’ll need

7+ years of deep technical experience in enterprise application integration, API management, and event-driven architectures within complex, multi-system corporate environments
Advanced mastery of modern integration paradigms: REST, GraphQL, gRPC, and Event Brokers (e.g., Kafka, RabbitMQ) in production enterprise contexts
Strong working knowledge of ESB/middleware platforms — specifically webMethods or equivalent (IBM Integration Bus, MuleSoft, etc.)
Familiarity with cloud-native ETL and data integration tooling such as Azure Data Factory, Azure Integration Services, or equivalent
Proven ability to design, publish, and govern enterprise integration patterns — API-first, event-driven, microservices — and enforce adoption across decentralised engineering teams
Hands-on experience enforcing architectural guardrails such as the Signal vs. Payload pattern, ensuring large file transfers are decoupled from real-time ESB operations
Demonstrated experience defining operating models and rules of engagement across separate architectural and infrastructure delivery teams
Track record of technical debt mitigation — reviewing product team designs proactively and providing actionable guidance before problems reach production
Ability to operate as a community leader — driving standards adoption across engineering squads without direct hierarchical authority
Strong capacity to navigate both high-level business strategy and deep technical system-to-system data flows simultaneously
Clear, confident communication in English (B2 or above) — essential for cross-functional stakeholder engagement at all levels

Benefits

Comp & perks

Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development opportunities

ATS Keywords

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Hard Skills & Tools

enterprise application integrationAPI managementevent-driven architecturesRESTGraphQLgRPCEvent BrokersESB/middleware platformscloud-native ETLdata integration

Soft Skills

community leadershipstandards adoptionclear communicationstakeholder engagementtechnical debt mitigationproactive guidanceoperating model definitionrules of engagementcross-functional collaborationstrategic navigation