Arunachalam Sekaran

• Developed MuleSoft APIs and integrations using RAML, DataWeave, API-Kit, and Anypoint Studio.
• Built reusable API assets, shared components, and standardized API-led integration patterns.
• Implemented system, process, and experience layer APIs following API-led connectivity.
• Designed and developed DataWeave transformations for JSON, XML, CSV, and complex multi-source data
mappings.
• Integrated Mule applications with databases, Workday, Salesforce, MFT, and internal PwC systems.
• Designed and executed unit and integration tests using MUnit to ensure high-quality deployments.
• Deployed and managed Mule applications on CloudHub, handling workers, queues, properties, and
monitoring.
• Integrated with Datadog for capturing and monitoring logs and created a dashboard with charts on Datadog
for monitoring error spikes.
• Collaborated closely with functional teams to refine requirements and deliver scalable integration solutions.
• Partnered with DevOps teams to integrate CI/CD pipelines and automate deployments using Jenkins and
Maven.
• Actively contributed to Agile ceremonies sprint planning, stand-ups, code reviews, and team collaboration.

• Designed and developed Mendix applications using domain models, microflows, nanoflows, and page logic.
• Built reusable components, UI widgets, and custom modules to standardize application functionality.
• Implemented complex business logic, validations, workflows, and decision models across multiple apps.
• Integrated with external systems using REST APIs, ODATA services, and webhooks, enabling seamless data
exchange.
• Designed and optimized domain models, associations, access rules, and security profiles (user roles).
• Developed document generation features including PDF/Word templates, reports, and automated
notifications.
• Implemented SSO authentication (GLUU, OAuth2, SAML) and secure session management for enterprise
apps.
• Performed unit testing, debugging, and performance tuning for better usability and faster response times.
• Managed deployments across DEV/TEST/UAT/PROD and resolved production issues within SLA.
• Built responsive web, progressive web, and native mobile apps using Mendix widgets and layouts.
• Collaborated with business stakeholders to refine requirements and translate them into scalable Mendix
solutions.
• Led application support, defect resolution, feature enhancements, and user onboarding/training.
• Worked in Agile environments, contributing to user stories, sprint planning, and release cycles.
• Mentored junior developers and provided guidance on best practices, Mendix development techniques, and
problem-solving approaches.

• Delivered multiple enterprise solutions using Mendix, including workflow automation and customer portals.
• Implemented domain models, microflows, SSO integrations, and document generation workflows.
• Led production support, deployments, and improved application SLAs significantly.
• Developed IBM ACE/IIB message flows using ESQL, SOAP, REST, MQ.
• Built sub flows, reusable components, and standardized integration patterns.
• Implemented content-based routing, transformation, enrichment, and error handling.
• Integrated with backend systems via MQ, JDBC, File, HTTP/S, and SAP BAPI.
• Designed DFDL schemas for flat files and complex message structures.

• Designed SQL/PLSQL enhancements using packages, procedures, triggers, and performance tuning.
• Created objects using Type object, member procedure.
• Optimized SQL queries using Explain plan, Hints, Index, GTT.
• Prepared scripts for transforming table data into SOAP XML using XMLELEMENT.
• Developed Oracle Web service client using procedures and packages.
• Created web service code by using Oracle-supplied packages like UTL_HTTP.
• Created Oracle Wallet for SSL Transactions.

• Developed PL/SQL objects, triggers, functions, DB links, etc.
• Managed database integrations and optimized large-scale SQL workloads.