Arulkumar Ponnusamy

Client - Boehringer Ingelheim (June 2023 to Oct 2024)

• Configured and managed API security policies, including OAuth, JWT, and SSL/TLS using Axway API Manager
• Deployed API contracts in Axway API manager using Stoplight Studio Cloud
• Developed Custom Policies using Axway Policy Studio
• Developed Rest API's using Axway API Builder
• Collaborated with development teams to design RESTful and SOAP APIs, ensuring alignment with business requirements.
• Monitored and optimized API performance, identifying and resolving bottlenecks using Axway API Gateway.
• Automated deployment processes using Genkins
• Provided technical support and troubleshooting for API-related issues, ensuring minimal downtime.
• Documented API configurations, policies, and procedures for future reference and training purposes.
• Mentored junior team members in technical skills and industry knowledge, fostering a positive learning environment.

Client - Rabobank (Nov 2024 to Till Date)

• Responsible for developing Azure DevOps Extension to deploy the API in Kong API Gateway
• Responsible for API Standards and Governance
• Responsible for Developing Azure DevOps Extension to Deploying Secrets and Certificates in Kong API Gateway
• Responsible for creating Azure Function using typescript to validate the provider's OAS file before deploying in Kong

Client - DSB (Danish State Railways) (Nov 2021 to May 2023)

Responsibilities:

• Developed Backend API using .Net 6 for consuming data from multiple sources (SQL, Oracle, SOAP Service, Rest)
• Developed Azure function for sending notifications to service bus queues and topics
• Deployed API's in Azure App Service using Azure DevOps pipeline
• Deployed Queues and Topics in Solace Event Broker using GitHub Actions
• Experienced in securing the Queues and Topics using ACL profile and OAuth
• Experienced in Solace Authentication and Authorization
• Created a reusable client library for Solace to consume or publish messages into topics or queues using C#.Net.
• Deployed Solace Client library in AKS
• Good Experience in Azure IaaS - App Services, Logic Apps, Service Bus, Virtual Network, VPN, Azure API Gateway, Resource Group, Key Vault, Storage Account, Application Insights, Azure Functions, SQL Server, Redis Cache, SignalR
• Created Azure Data Factory (ETL) Pipeline for Transferring the file from Source to Target
• Implemented CICD pipeline to build and run ARM Templates to create Azure infrastructure
• Deployed Kong API Gateway in Azure Kubernetes Service (AKS) using Helm
• Implemented Gateway Authentication, Routing, Rate Limiting, Monitoring, Policies and Security and Monitoring
• Created custom plugin to extract content from SOAP response using Kong Pongo (Lua Script)
• Deployed API in Kong Gateway using Deck Command and GitHub Actions
• Developed API Documentation using Kong Developer Portal
• Deployed Kong developer portal using Portal CLI
• Implemented Log Management using Humio Cloud Service
• Good Experience in reading Log files from multiple sources and sent it to Centralized Humio Cloud Service using FileBeat
• Created Humio dashboards to monitor the application performance

Responsibilities:

• Wrote clean, clear and well-tested code for various projects such as Offers Engine, UK Localization and TSO, Service Migration.
• Developed landing pages, dashboards and online applications using HTML5, Bootstrap and jQuery scripting.
• Developed back-end API components to connect applications with other web services.
• Planned and engineered RESTful web services to manipulate dynamic datasets using .Net Core.
• Designed and executed security measures such as Authorization, Authentication and encryption (oAuth 2.0, Basic Auth, JWT, OIDC, PING Identity provider).
• Implemented extensive logging for API's using Serilog
• Regularly updated knowledge of latest industry trends in web development and API development related technologies.
• Implemented distributed cache system using Redis
• Rapidly prototyped Kong API gateway and Nginx capabilities to confirm integration feasibility into existing systems.
• Drafted new and updated designs using .Net Core & Kong API Gateway

Responsibilities:

• Built shared central authentication system in C# language for intranet applications
• Wrote Dealer Management System applications in N-Tier ASP.Net architecture for Automotive industry.
• Evaluated project requirements and specifications and developed software applications that surpassed client expectations.
• Built databases and table structures following N-Tier architecture methodology for web applications.
• Boosted efficiencies in DMS software using LINQ to deliver better overall user experience (For Long Running Reports).
• Improved 50% performance in high usage reports by implementing LINQ
• Prepared test plans and test cases based on user requirement documents for Dealer Management System (DMS).
• Collaborated with developers and performance engineers to enhance supportability and identify performance bottlenecks.
• Contributed ideas and suggestions in team meetings and delivered updates on deadlines, designs and enhancements.
• Performed software testing to uncover bugs and troubleshoot major issues prior to application launch.
• Documented all software development methodologies in technical manuals to be used by Developer's in future projects.