MuleSoft Developer with API-Led Connectivity Expert

NATNAEL ISSAC

443-***-**** *******.*******@*****.***

PROFESSIONAL SUMMARY

• 9+ years of overall IT experience with 7+ years specializing in enterprise application integration using MuleSoft ESB (Mule 3 and Mule 4), Anypoint Platform, and IBM WebSphere MQ across on-premises and cloud environments.

• MuleSoft Certified Developer Level 1 and Level 2 with strong expertise in API-led connectivity, REST and SOAP API development, DataWeave 2.0, error handling frameworks, MUnit testing, and performance optimization.

• Proven experience building synchronous and asynchronous Mule flows, including Mule 3 using MEL and Mule 4 using DataWeave 2.0 for payload transformation, variable handling, and property resolution

• Strong understanding of secure integration practices, PCI-DSS compliance, and authentication and authorization mechanisms including OAuth 2.0.

• Extensive experience using MuleSoft connectors such as DB, HTTP and HTTPS, File, FTP and SFTP, JMS, Salesforce, SAP, and custom connectors for enterprise integrations.

• Designed and implemented MuleSoft integrations with Salesforce to synchronize Accounts, Contacts, and Opportunities using REST APIs and Salesforce connectors, applying DataWeave transformations, robust error handling, and OAuth 2.0–based security.

• Implemented MuleSoft integrations with Microsoft Exchange Web Services (EWS) to automate email and calendar operations using scheduled and event-driven flows, ensuring secure authentication, fault tolerance, and reliable message delivery.

• Proficient in XML technologies including XSD, XSLT, XPath, XQuery for complex data transformations.

• Hands-on experience integrating with enterprise messaging and streaming platforms including Kafka, ActiveMQ, and JMS, implementing guaranteed delivery and asynchronous messaging patterns.

• Good experience MuleSoft RPA

• Experience supporting Salesforce implementations, including integrations with Salesforce CPQ.

• Experience integrating MuleSoft applications with AWS services such as S3, DynamoDB, SNS, SQS, Lambda, Kinesis, and API Gateway.

• Strong experience with CI/CD and DevOps practices including Maven builds, release packaging, environment deployments, and pre- and post-deployment validation.

• Experience working in Agile and Scrum environments, collaborating closely with cross-functional teams to deliver scalable integration solutions.

• Strong troubleshooting skills with proven experience in production support, root cause analysis, and defect resolution.

• Experience with Datadog monitoring and logging, Mule administration, configuration management, and performance tuning.

• Strong communication and interpersonal skills with the ability to work independently or as part of a team and adapt quickly to new technologies.

SKILLS

• AnyPoint Platform: Mule ESB, API Designer,

MMC, CloudHub, Runtime Manager, Exchange,

AnyPoint Studio, VPC, V-Core, Workers.

• Enterprise Runtime 3.9 and 4.x, Mule, AnyPoint

Studio 6.4/7.15, MMC.

• Management Console, RAML, SOA Design, Web

services, Security, Service Testing.

• MySQL, Microservices, Spring, SOAP and REST.

• Apache Camel, Active MQ, Rabbit MQ.

• J2EE Technologies: Servlet, JSP, JSON, JDBC,

XMI.

• Servers: Tomcat 6.1, WebLogic 6.X/7.0, JBoss.

• Methodologies: Agile & Waterfall.

• Version Control: GIT, TFS, SVN, CVS.

• Tools: Jenkins, Maven, Jira, ServiceNow, Mingle.

• Testing: MUnit, JUnit, Soap UI, Postman, XML

Spy.

• Web Technologies: HTML, WSDL, CSS, XML,

AJAX, XSLT.

• Languages: C, C++, Java, J2EE, Dataweave,

Python, Ruby.

• Databases: Oracle 9i/10g, PL/SQL, HQL, MS

SQL, IBM DB2.

• Mule: Mule 3.9.x/4.15.x, AnyPoint Studio 6.5/7.5, MMC.

• Tools & Utilities: SVN, GIT, Jenkins, Ansible,

AWS, Artifactory, Nexus, Kafka, Hadoop

WORK HISTORY

Sr. MuleSoft Developer, 07/2022 - Current

American Express – New York City, NY

• Create various documents, business requirements, functional, technical specifications and test cases

• Design various types of flows which are integrated with Salesforce, Amazon Web Services, Mainframes

• Responsible in developing integration workflows using Mule ESB framework and implemented Data Weave and content-based routing using Mule ESB

• Design and Implemented RESTFUL Web Services using various data format (JSON, XML) to provide an interface to the various third-party applications

• Done with transformers, exception handling, testing & Security of Mule ESB endpoint through OAuth

• Create Mule flows to integrate Data from various sources into Database from Active MQ topics and queues and some transformations were also done at the integration layer

• Create flows/orchestrations for integrating the components like connectors, transformers and scopes written on top of different internal platforms using Mule ESB for XML to CSV conversion

• Drive code review meetings to provide analyze and testing support to Business Analyst people

• Integrate mulesoft runtime with external log aggregator Splunk and configure Log4j appender

• Secure RESTful API with OAuth and JWT tokens

• Implement integration patterns such as Fan-in-fan-out, mediation and enrichment pattern

• Coordinate in all testing phases and worked closely with Performance testing team to create a baseline for the new application.

MuleSoft Developer, 04/2018 - 07/2022

Aetna – Hartford, CT

• Participated in different phases of SDLC (requirement gathering, designing, development, testing, deployment, and post-production support)

• Developed, exposing, and consuming REST and SOAP Webservices

• Implemented integration flows using Mule AnyPoint Studio to connect to REST, SOAP service, Oracle Database, and ActiveMQ broker

• Create RAML specification in Anypoint platform and use fragments such as Resource type, Traits and Library to enable reusability

• Create Mule application that uses connectors SFDC, Message Transformer, Choice Exception Strategies, Batch processing

• Created integration workflows using Mule ESB 3.9.x framework and implemented Data weave and Content-Based Routing in Mule ESB

• Created Flows, Sub Flows, and Data Mapper transformations in Mule configuration

• Promoted code from development to testing and production environments

• Deployed applications to Cloud Hub, and Standalone Servers using Runtime Manager

• Created integration between File and Database

• Made integration among Salesforce, Database, and REST Webservice

• Participated in trouble shooting and problem solving of the integration's projects

• Create complex queries with joins, sub-queries, and nested queries in SQL queries

• Worked closely with Business Analyst to understand the integration requirements. Tibco Developer, 05/2017 - 04/2018

Us Bank – Minneapolis, MN

• Designed, Developed, Configured and Deployed all kinds of Process of TIBCO BusinessWorks

• Development and configuration of TIBCO MQ Series Adapter for integrating with IBM MQ Series

• Designed, developed, monitored, and managed various TIBCO BusinessWorks Interfaces and Adapters in Production

• Monitored and Managed the Deployments and TIBCO Components using TIBCO Administrator

• Configured SOAP Web Service in TIBCO, including configured SOAP Server and SOAP Client

• Using TIBCO BusinessWorks to create and invocate SOAP over HTTP Web Service

• Created and invocated SOAP over JMS Web Service using TIBCO BusinessWorks

• Worked on JDBC Transaction Group to perform multiple database operations within the group as a single unit of work in TIBCO BusinessWorks

• Used the SOAP Web Service to write files to disks in TIBCO BusinessWorks

• Reconfigured SOAP Web Service by changing the transport HTTP to JMS, or JMS to HTTP

• Worked on interoperability of TIBCO BusinessWorks SOAP Service with the JAX RPC client

• Worked on interoperability of TIBCO BusinessWorks SOAP/JMS Service with the Apache AXIS client

• Generated various XML schemas as per the mapping involved in the process flows from the integration perspective

• Implemented error handling in Business Process and conducted Unit testing, component testing and supported system testing

• Fault tolerance was achieved using Rendezvous certified messaging methodology

• Documented the design of the workflow using Components and Message flow diagrams in UML using Microsoft Visio.

Java Developer, 08/2015 - 03/2017

Kroger – Cincinnati, OH

• Worked with core Java business components and services including Soap and RMI

• Multi-tier development environment with rigorous testing and documentation requirements

• Involved in the full life cycle of software design process of other projects, including prototyping, proof of concepts, design, interface implementation, testing, and maintenance

• Provides L3 Support for SOAP web services as main point of contact to client

• Utilized Spring MVC and JSP to create a basic data modification web

• Created & maintained a centralized repository of UI components, participated in usability testing & research

• Wrote and executed test cases based on written design; researched and documented software bugs and implemented fix

• Prepared Unit test cases and reviewing test results

• Designed and developed front end using JSP and JSTL

• Created web services using SOAP and producing WSDL to the Client side. EDUCATION

Bachelor of Computer Science: 07/2014

CERTIFICATIONS

MuleSoft Certified Developer – Level 1 (Mule 4)

MuleSoft Certified Developer – Level 2 (Mule 4)

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