API Integration Engineer

We’re looking for an Integration Engineer to help design, build, test, deploy, and support API-driven solutions for a large-scale digital transformation initiative. This hybrid opportunity offers the chance to work on modern cloud and enterprise integration patterns using AWS, API gateway technologies, microservices, and hands-on engineering best practices. Responsibilities

• Design and implement integration solutions that support API-led transformation and modern microservices-based architectures.
• Build, test, deploy, and support cloud and enterprise integrations with a focus on scalability, reliability, and maintainability.
• Develop reusable code, templates, and accelerators to improve delivery speed and consistency.
• Apply integration best practices across performance testing, configuration, automation, monitoring, and troubleshooting.
• Collaborate with architects, engineers, product teams, and client stakeholders to align solutions with business and technical goals.
• Contribute to discovery, planning, estimation, architecture discussions, and solution design activities.
• Support production readiness and ongoing operational support for APIs and integration platforms.
• Help document technical patterns, examples, and reusable approaches to share knowledge across teams.

• Hands-on experience designing and delivering integration solutions using API-led and microservices-based approaches.
• Practical AWS experience supporting cloud-based integration work.
• Experience with API gateway technologies, including API configuration, security, and support.
• Strong REST API development experience, ideally using Java, Spring Boot, and/or Node.js.
• Working Java experience sufficient to build, troubleshoot, and support integration components.
• Understanding of integration patterns, service orchestration, API security, error handling, logging, and resiliency.
• Experience with unit testing and integration testing.
• Familiarity with CI/CD and DevOps practices.
• Ability to work collaboratively in a delivery environment and communicate effectively with technical and non-technical partners.

Preferred Skills

• MuleSoft experience, including Anypoint Platform, CloudHub, Runtime Fabric, or on-premise deployments.
• Experience with GraphQL service implementation.
• Knowledge of event-driven architecture and tools such as Kafka or MQ.
• Exposure to Terraform or other infrastructure-as-code tools.
• Experience with AWS-native integration services and cloud integration tooling.
• Familiarity with NoSQL databases such as MongoDB or Cassandra.
• Experience with relational databases such as Db2, Oracle, or MySQL.
• Strong scripting skills, especially with JavaScript.

Horizontal is committed to fostering a workplace where diversity, equity, and inclusion are valued and respected. We welcome candidates of all backgrounds and experiences and are committed to creating an environment where everyone can contribute and thrive.