Column Technical Services is seeking a highly skilled technical API Modernization & Integration Consultant to support a short-term project focused on API analysis modernization and integration. The ideal candidate will have deep experience working with legacy APIs designing modern interfaces and implementing secure scalable solutions.
Key Responsibilities
Analyze and document legacy APIs including behavior and structure
Create clear and comprehensive API contracts using OpenAPI/Swagger
Redesign outdated interfaces into modern REST GraphQL or gRPC services
Integrate APIs with gateways such as Apigee Kong AWS API Gateway or Azure API Management
Implement robust security protocols including OAuth2 JWT and mTLS
Produce developer-friendly documentation to support integration and onboarding
Required Skills & Experience
Proven experience in API architecture design and documentation
Strong understanding of modern API protocols and patterns
Hands-on experience with API Gateway platforms
Expertise in authentication and authorization standards
Excellent written communication skills for technical documentation
Ability to work independently and deliver high-quality results within a defined timeline
Preferred Qualifications
Experience with cloud platforms (AWS Azure GCP)
Familiarity with CI/CD pipelines and DevOps practices
Background in consulting or freelance project delivery
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