Senior API Platform Software Engineer

Senior API Platform Software Engineer
Fulltime
Hybrid – Knoxville, TN | Columbia, SC | Lafayette, LA | Birmingham, AL

Position Overview
Seeking a Senior API Platform Software Engineer to build and enhance backend services, APIs, and API platform capabilities within a highly distributed, AWS-based financial services environment .
This is a hands-on role requiring strong experience with Java and/or Python, REST APIs, Microservices, AWS, Apigee, API Security, and DevOps .
Key Responsibilities

• Develop secure and scalable RESTful APIs, backend services, and microservices.
• Support the complete API lifecycle including implementation, versioning, security, performance, monitoring, and production support.
• Develop applications using Java and/or Python.
• Build and support API management solutions using Apigee.
• Implement API security using OAuth 2.0, JWT, mTLS, and API key management.
• Work with AWS cloud services and containerized platforms.
• Support CI/CD, Infrastructure as Code, monitoring, and observability.
• Troubleshoot API, cloud, application, and performance issues.
• Collaborate with Product, DevOps, Security, and Architecture teams.

Must-Have Skills

• 5+ years of hands-on development experience with Java 8–21 and/or Python .
• Strong experience with RESTful APIs, backend services, and microservices .
• Hands-on AWS experience including:
  • EC2
  • ECS
  • EKS
  • Lambda
  • S3
  • IAM
  • Route 53
  • CloudWatch
• Strong experience with Apigee OPDK, Apigee X, or Apigee Hybrid .
• Strong understanding of API lifecycle, versioning, throttling, traffic management, security, and analytics.
• API security experience with OAuth 2.0, JWT, mTLS, and API Keys .
• Knowledge of OpenAPI / Swagger .
• Experience with GitHub or GitLab, Terraform, and CI/CD .
• Working knowledge of JavaScript / TypeScript .
• Experience with Kubernetes, ECS, and EKS .
• Monitoring experience with OpenTelemetry, Splunk, and CloudWatch .
• Knowledge of load balancing, caching, high availability, resiliency, and disaster recovery.
• Experience with relational and NoSQL databases.
• Agile/Scrum experience.

Nice-to-Have Skills

• GraphQL.
• AWS CloudFormation.

Key Technologies
Java | Python | AWS | REST APIs | Microservices | Apigee | OAuth 2.0 | JWT | mTLS | OpenAPI | Swagger | ECS | EKS | Kubernetes | Terraform | GitHub | GitLab | OpenTelemetry | Splunk | CloudWatch | JavaScript | TypeScript | SQL | NoSQL
Education

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical field.

The real hiring focus is Java/Python + API development + Apigee + AWS + API Security (OAuth/JWT/mTLS) + Microservices

#M1
#DI-CB2

#L1 - KB1

Why Join Us?

You will have the opportunity to work on high-impact cloud data initiatives supporting enterprise risk and analytics with one of world class fortune 500 company. This role offers exposure to modern AWS technologies, complex data challenges, AI-enabled automation, and cross-functional collaboration within a major financial services environment.

Ref: #404-IT Pittsburgh

System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.