Senior API Integration Engineer designing and building APIs and integration solutions for multiple industries. Collaborating with stakeholders to create scalable systems and drive business value.
Responsibilities
Serve as a trusted advisor to clients on API strategy, integration patterns, and system design
Design, build, and maintain RESTful APIs and integration services
Lead technical discussions around API standards, versioning, security, and governance
Mentor and upskill Callibrity consultants and client engineering teams
Translate business and integration requirements into scalable technical solutions
Proactively identify integration risks, performance bottlenecks, and failure points
Communicate complex integration concepts clearly to both technical and non-technical stakeholders
Demonstrate and teach best practices related to API design, CI/CD, DevOps, and test automation
Stay current on emerging technologies including cloud-native integration, event-driven architectures, and AI-enabled workflows
Thrive in environments with close collaboration across engineering, product, QA, and architecture roles
Be someone clients trust and rely on regardless of title or seniority
Requirements
7+ years of professional experience building and supporting API-driven and integrated systems
Strong experience designing and implementing RESTful APIs and service integrations
Hands-on experience with API frameworks and platforms (e.g., FastAPI, Flask, Spring Boot, Azure API Management, Apigee, or similar)
Strong understanding of integration patterns, messaging, and distributed systems concepts
Experience working with cloud platforms such as AWS, Azure, and/or Google Cloud Platform
Familiarity with Infrastructure as Code and CI/CD pipelines
Experience with Docker and containerized services; Kubernetes is a plus
Experience with performance, reliability, and observability in API ecosystems
Experience integrating with external vendors and third-party systems
Relevant professional experience in IT and/or consulting
Four-year degree, respected bootcamp/accelerator, or equivalent practical experience
Ability to successfully complete Callibrity’s CoderPad and Code Pairing challenges
Strong interpersonal skills: influence, professionalism, accountability, curiosity, and a “shared ownership” mindset
Embodies Callibrity’s Core Values
Must be authorized to work in the United States, without sponsorship
Benefits
Health/Vision/Dental insurance effective day 1 of employment
401k match vested immediately
Annual training/conference stipend
Paid parental leave
Paid bench time
Paid flex time for training, blogging, speaking engagements, and thought leadership
Paid time off for vacation, holidays, and sick days
Competitive industry salary
Weekly lunch and learns
Regular team-building events
Small company feel with the resources of a sustainable and proven business model
High employee retention and satisfaction (One of Cincinnati’s Best Places to Work!)
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