Summary
Overview
Work History
Education
Skills
Timeline
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Karthick Sundaresan

Summary

Accomplished IT professional with over 12 years of specialized experience in API management, enterprise architecture, and security. Proficient in leading complex projects across healthcare, retail, and finance domains, with expertise in Layer7 API Gateway, Nginx, and Kong. Skilled in designing high-availability architectures, automating API deployments, and integrating AI-driven solutions. Proven ability to manage cross-functional teams, deliver innovative solutions, and meet stringent deadlines.

Key Highlights:

  • API Gateway Expertise: Extensive experience as lead admin and developer for Layer7, Nginx, and Kong API Gateways.
  • Automation & Scripting: Automated deployment processes for multiple API Gateways and designed end-to-end automation flows.
  • Architectural Leadership: Architected AI-driven projects and integrated front-end clients with backend agent APIs, LLMs, and metadata.
  • Security & Compliance: Deep knowledge of API security protocols including SSL, OAuth, JWT, SAML, and Kerberos.
  • Enterprise Architecture: Designed and implemented decentralized API management architectures with high availability.
  • Team Leadership: Demonstrated ability in leading teams, conducting workshops, and providing architectural guidance.
  • Process Management: Expertise in Application Lifecycle Management, Change & Release Management, and ITIL processes.

Overview

12
12
years of professional experience

Work History

Senior Principal Software Engineer

Dell
03.2022 - Current
  • Architect and implement enterprise-wide API management and integration solutions.
  • Design and deploy high-availability API security gateway setups.
  • Lead the decentralization of API gateways, reducing reliance on a single vendor.
  • Architect federated authentication systems using clustered Identity Providers (IDPs).
  • Spin up and configure new gateway servers, including Layer7 API Gateway, Kong, and Nginx.
  • Integrate API Gateway with cloud platforms like OpenShift and AWS.
  • Provide architectural guidance on API security protocols and best practices.
  • Conduct workshops and training sessions to align API management architecture with enterprise goals.

Layer7 System Engineer

Tachyon Technologies
03.2020 - 03.2022
    • Administer Layer7 API Gateway, managing setup, clustering, and ongoing maintenance.
    • Lead the management and integration of API Developer Portal within a Docker Swarm environment.
    • Develop security services and policies to protect against OWASP Top 10 threats.
    • Manage API Gateway environment migrations using GMU and ESM tools.
    • Customize OAuth Tool Kit (OTK) to align with specific business and infrastructure needs.
    • Collaborate with cloud teams to integrate API Gateway with various cloud platforms and external IDPs.

Senior IT Security Engineer

Meridian Health Plan, a WellCare
08.2018 - 03.2020
  • Deliver end-to-end API management solutions with a focus on security best practices.
  • Design and implement secure API frameworks for enterprise-level applications.
  • Ensure the high availability and security of Layer7 API Gateway environments.
  • Manage integrations with AWS, Jenkins, and other CI/CD platforms.
  • Perform regular maintenance, security patching, and troubleshooting for API Gateway environments.

Lead Technical Consultant

Perficient
12.2015 - 08.2018
    • Implement and manage Layer7 API Gateway and Live API Creator for large enterprise clients.
    • Integrate with external vendors such as Salesforce, Equifax, and DocuSign.
    • Lead the migration of SOAP and REST services to Layer7 API Gateway.
    • Design and deploy high-availability solutions for Layer7 API Management.
    • Customize OTK and implement security protocols across diverse environments.

Middleware Consultant

Tata Consultancy Services Ltd
07.2012 - 12.2015
    • Provide API management solutions and security best practices to enterprise clients.
    • Administer Layer7 API Gateway, including setup, clustering, and version upgrades.
    • Implement web services security, service orchestration, and mediation using Layer7 API Gateway.
    • Develop custom scripts for automation, monitoring, and alerting.
    • Manage audit logging, certificate management, and integration with external IDPs.

Education

Bachelor of Science - Computer Science And Engineering

SRM University
Chennai, India
05.2012

Skills

    • API Management:
    • Layer7 API Management (V62-V111), API Developer Portal, Nginx, Kong
    • Enterprise Architecture:
    • High-availability solutions, Decentralized architectures, Federated Identity Providers
    • Enterprise Service Bus:
    • TIBCO
    • Security Protocols:
    • OAuth, JWT, SAML, SSL, API Key Authentication, Kerberos
      • Web Services & Messaging:
      • REST, JSON, XML, XSD, XSLT, WSDL, Swagger, WADL
      • Tools & Technologies:
      • GitHub, Jira, Confluence, ServiceNow, Wireshark, Postman, SoapUI, Eclipse, Jenkins, F5/Cisco Load Balancer, VMware
      • Operating Systems:
      • Linux, Windows
      • Database:
      • MySQL, Postgresql

Timeline

Senior Principal Software Engineer

Dell
03.2022 - Current

Layer7 System Engineer

Tachyon Technologies
03.2020 - 03.2022

Senior IT Security Engineer

Meridian Health Plan, a WellCare
08.2018 - 03.2020

Lead Technical Consultant

Perficient
12.2015 - 08.2018

Middleware Consultant

Tata Consultancy Services Ltd
07.2012 - 12.2015

Bachelor of Science - Computer Science And Engineering

SRM University

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Karthick Sundaresan