Title: Integration & API Engineer

Integration & API Engineer

We are seeking an experienced Integration & API Engineer to support a large-scale Customer Transformation Program focused on designing, developing, and implementing middleware and integration solutions across multiple enterprise systems for a long-term contract in Columbus, OH. This role will be responsible for building scalable APIs, event-driven integrations, and cloud-based middleware that enable seamless communication between customer-facing and back-end enterprise applications.

The ideal candidate has strong experience with API development, middleware technologies, cloud platforms, event-driven architectures, and modern DevOps practices, with the ability to collaborate across architecture, development, and business teams throughout the software development lifecycle.

Key Responsibilities

Design, develop, implement, and support middleware and integration solutions connecting multiple enterprise systems as part of a customer transformation initiative.

Build and maintain RESTful APIs and asynchronous integration services to support scalable, high-performance business processes.

Develop integration solutions using MuleSoft and modern API-led connectivity principles.

Design, develop, and deploy cloud-native integration services using Azure, including Java (Spring Boot) and Python-based applications.

Collaborate with SAP technical teams to review integrations involving SAP Business Technology Platform (BTP), providing design reviews, code reviews, and technical consultation.

Design and implement event-driven architectures leveraging Apache Kafka for real-time messaging and distributed event processing.

Participate in detailed requirements gathering, technical analysis, solution design, and documentation activities.

Produce high-quality technical documentation, including API specifications, interface designs, sequence diagrams, and integration workflows.

Apply established integration architecture patterns and best practices to ensure scalable, secure, and maintainable solutions.

Develop automated unit, integration, and end-to-end tests to ensure application quality and reliability.

Support CI/CD pipelines and DevOps processes to enable efficient build, deployment, and release management.

Monitor, troubleshoot, and resolve integration issues across development, testing, and production environments.

Collaborate with architects, developers, QA teams, business analysts, and stakeholders throughout project delivery.

Track work assignments, user stories, defects, and project progress using Jira while participating in Agile ceremonies.

Required Qualifications

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field (or equivalent experience).

5+ years of experience designing and developing enterprise integration solutions.

Hands-on experience building RESTful APIs and asynchronous messaging solutions.

Strong experience with MuleSoft or similar enterprise integration platforms.

Experience developing cloud-native applications using Microsoft Azure, including: Java (Spring Boot), Python, Azure services.

Experience working with SAP Business Technology Platform (BTP), including participation in architecture reviews, code reviews, or integration design discussions.

Experience implementing event-driven architectures using Apache Kafka.

Strong understanding of enterprise integration patterns and API design best practices.

Experience performing requirements analysis, technical design, and solution documentation.

Experience developing automated testing strategies and test automation frameworks.

Knowledge of DevOps methodologies, CI/CD pipelines, source control, and deployment automation.

Experience working in Agile/Scrum environments.

Proficiency using Jira to manage work items, user stories, and defects.

Preferred Qualifications

Experience with large-scale customer transformation or digital transformation initiatives.

Experience integrating SAP and non-SAP enterprise applications.

Familiarity with microservices architecture and containerized deployments.

Experience with Azure DevOps, Git, Docker, Kubernetes, or similar technologies.

Utility or energy industry experience is preferred but not required.

Key Technical Skills

REST APIs

Asynchronous APIs

MuleSoft

Microsoft Azure

Java (Spring Boot)

Python

SAP Business Technology Platform (BTP)

Apache Kafka

Event-Driven Architecture

API Design & Integration Patterns

Requirements Analysis

Technical Documentation

Test Automation

CI/CD & DevOps

Jira

Agile/Scrum

Ideal Candidate Profile

The successful candidate is an experienced integration engineer who excels at building secure, scalable, and cloud-native integration solutions across complex enterprise environments. They possess strong API development expertise, understand modern integration architecture patterns, and are comfortable collaborating with architects, developers, QA teams, and business stakeholders to deliver high-quality solutions that support enterprise-wide customer transformation initiatives.

DTI is an Equal Opportunity Employer. We do not discriminate based on race, color, religion, sex, gender identity, sexual orientation, national origin, ancestry, age, disability, marital status, veteran status, or any other protected characteristic under Illinois state or federal law. All qualified applicants are encouraged to apply, and employment decisions are based solely on merit, qualifications, and business needs.