Kyndryl

API Developer

Kyndryl

full-time

Posted on:

Location Type: Hybrid

Location: Bangalore • India

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Job Level

SeniorLead

Tech Stack

AWSCloudDjangoFlaskGraphQLGRPCJavaJavaScriptLinux.NETNode.jsPythonSpringSpring BootSpringBoot

About the role

  • Infrastructure Specialists at Kyndryl are project-based subject matter experts in all things infrastructure.
  • Analyze problems and tech issues, offer solutions, and test, modify, automate, and integrate systems.
  • Long-range strategic planning of IT infrastructure and operational execution.
  • Contributing to current projects and identifying the technical and timeline risks up front.
  • Dealing with both client expectations and internal challenges for impactful contributions.
  • Enjoying deep involvement throughout the lifespan of a project, collaborating closely with Architects, Technicians, and PMs.

Requirements

  • Overall 7+ years of experience into IT
  • Strong experience in building and maintaining RESTful APIs (and/or GraphQL, gRPC)
  • Proficiency in at least one backend programming language: Java / Spring Boot, Python / Flask / FastAPI / Django, Node.js / Express / NestJS, .NET Core / C#
  • Designing scalable, reusable, and modular APIs
  • Strong understanding of HTTP methods, status codes, headers, request/response cycles
  • API Design & Standards
  • Experience with API specification frameworks (OpenAPI/Swagger, RAML, Postman)
  • Knowledge of API versioning, documentation, and lifecycle management
  • Familiarity with REST design principles and best practices
  • Understanding of JSON, XML, YAML data formats
  • Implementing authentication & authorization (OAuth2, JWT, SAML, API Keys)
  • Securing APIs against OWASP Top 10 vulnerabilities
  • Rate limiting, throttling, and quota management
  • Knowledge of TLS/SSL, HTTPS, CORS
  • Deep expertise within specific technology domain areas (e.g., software development, cloud computing, systems engineering, infrastructure, security, networking, data & analytics)
  • Hands-on experience in at least one of the following: software development, DevOps engineering, systems administration, or systems architecture in public cloud AWS domain
  • In-depth knowledge of Windows and Linux Operating Systems
  • Must have experience driving for engineering solutions and working across teams
  • Ability to communicate effectively, both verbal and written
Benefits
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Hard Skills & Tools
RESTful APIsGraphQLgRPCJavaSpring BootPythonFlaskFastAPIDjangoNode.js
Soft Skills
problem analysissolution offeringstrategic planningcollaborationcommunication