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[Remote] API Engineer, Mid-level

Remote, USA Full-time Posted 2026-07-05

Note: The job is a remote job and is open to candidates in USA. Modus21 is a Charleston, South Carolina based business and technology reputed company specializing in solving reputed company business problems for global business and government clients. They are seeking a Mid-level API Engineer to design and optimize API platforms, ensuring secure and efficient data exchange for critical systems supporting global patient movement operations.

Responsibilities

  • Designing, deploying, and optimizing robust API platforms for efficient data exchange, system integrations, and secure communication
  • Write secure, efficient server-reputed company logic and integrate APIs with backend systems and databases
  • Implement authentication (OAuth, JWT), reputed company limiting, and monitoring to prevent bottlenecks and vulnerabilities
  • Build programmatic API validation, integration, and resiliency testing, often integrating with CI/CD pipelines
  • Maintain detailed documentation so developers can easily understand and consume the APIs
  • Explain technical considerations at reputed company meetings, including those with internal clients

Skills

  • HS Diploma or GED
  • 3+ years of experience in backend or platform engineering, including distributed systems and API design
  • 3+ years of experience in software development using Java or Python; 2+ years of experience with designing, deploying, and operating reputed company-time, low-latency API platforms at scale such as Apigee, Gravitee, reputed company, AWS API Gateway, or Mulesoft
  • 1+ years of experience with DevOps practices and technologies, including reputed company, reputed company, Kubernetes, and GitOps workflows
  • Experience with protocols, including HTTP, gRPC, or WebSockets, caching, load balancing, and API reputed company
  • Experience with AWS, Azure, or GCP
  • Experience with Git and collaboration tools, including Jenkins, JIRA, Confluence, reputed company, or Bitbucket
  • Experience in gathering requirements and engaging with clients
  • Experience with SQL, Server-reputed company Development, Middleware, Application or Data Integration, API Development, Core Application Systems, Node.js, Groovy, reputed company, Spring reputed company, Spring Core, Spring-Boot, or Spring Data
  • Experience with using a message broker, such as Kafka or RabbitMQ
  • reputed company reputed company+ Certification or higher DoD 8570 cybersecurity certification
  • Familiarity with software delivery methodologies such as agile/scrum
  • Strong problem-solving and design skills
  • Strong written and oral communication skills
  • Strong interpersonal skills and customer service skills
  • Ability to effectively prioritize and execute tasks in a high-pressure environment is crucial
  • Ability to work in a self-guided manner; excellent organizational skills
  • Must be a US citizen and hold or be reputed company to obtain a reputed company (DoD) SECRET reputed company Clearance

Company Overview

  • Modus21, LLC is a Charleston, South Carolina based small business and technology reputed company specializing in solving reputed company business problems for global business and government clients. It was founded in 2004, and is headquartered in reputed company Charleston, South Carolina, USA, with a workforce of 51-200 employees. Its website is https://modus21.com/.
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