Senior API Engineer – MuleSoft

Job Title: Mulesoft API Engineer

Job Type: Contract
Location: Hybrid
Experience Required: 5–7 years
Compensation: $55 - $58/hr

Role Overview

We are seeking a Senior API Engineer with strong hands-on experience designing, developing, securing, and deploying enterprise APIs and integrations using MuleSoft Anypoint Platform. The ideal candidate will have expertise in API-led connectivity, Salesforce and database integrations, API security, governance, CI/CD automation, and production operations. Experience with Microsoft Azure and AI-assisted development is preferred.

Key Responsibilities

· Design, develop, secure, deploy, and support enterprise APIs and integrations using MuleSoft Anypoint Platform.

· Develop reusable APIs following API-led connectivity, REST API conventions, and enterprise integration patterns.

· Design and implement Salesforce integrations using MuleSoft connectors and APIs.

· Build secure and performant integrations with relational databases, enterprise applications, cloud platforms, and external services.

· Create and maintain OpenAPI/Swagger and RAML specifications.

· Use Anypoint API Manager, Exchange, Runtime Manager, Design Center, and Mule runtime to manage the API lifecycle.

· Implement API security, policies, throttling, rate limiting, error handling, and resiliency patterns.

· Build automated CI/CD pipelines and implement automated testing using MUnit.

· Ensure integrations meet enterprise security, performance, availability, networking, and governance standards.

· Establish monitoring, logging, troubleshooting, and production support practices.

Required Qualifications

· Strong hands-on experience with MuleSoft Anypoint Platform and Mule application development.

· Strong experience with API-led connectivity, including System, Process, and Experience API patterns.

· Experience with Anypoint API Manager, Exchange, Runtime Manager, Design Center, Mule runtime, and DataWeave.

· Strong knowledge of REST APIs, RAML, and OpenAPI/Swagger specifications.

· Strong hands-on experience integrating Salesforce with MuleSoft, including Salesforce connectors, APIs, authentication, data synchronization, and integration patterns.

· Strong experience integrating MuleSoft with relational databases using database connectors, SQL, stored procedures, transactions, and appropriate connection-management patterns.

· Experience designing real-time, near-real-time, and batch integrations across Salesforce, databases, and other enterprise systems.

· Experience implementing secure APIs using OAuth 2.0, JWT, client credentials, and API gateway security policies.

· Experience with MuleSoft connectors, transformations, exception handling, performance optimization, and reusable integration patterns.

· Experience building automated CI/CD pipelines, MUnit tests, and deployment automation for MuleSoft applications.

· Good understanding of API security, performance, networking, monitoring, governance, and lifecycle management.

· Strong understanding of Git, DevOps, and DevSecOps practices.

· Ability to independently deliver secure, scalable, resilient, and production-ready APIs and integrations.

Preferred Qualifications

· Hands-on experience developing and hosting APIs and services on Microsoft Azure.

· Experience with Azure API Management (APIM), Azure Functions, App Services, Logic Apps, Service Bus, and Event Grid.

· Understanding of Azure security, identity, and networking, including Microsoft Entra ID, Key Vault, managed identities, VNets, and private endpoints.

· Experience integrating MuleSoft with Azure-hosted applications, APIs, and services.

· Experience with Infrastructure as Code (IaC) using Terraform, Bicep, ARM templates, or similar technologies.

· Experience using AI-assisted development tools, such as GitHub Copilot, for code generation, testing, documentation, and development automation.

· Relevant MuleSoft, Salesforce, and/or Microsoft Azure certifications are a plus.

The salary range for this position takes into consideration a variety of factors, including but not limited to skill sets, level of experience, applicable office location, training, licensure and certifications, and other business and organizational needs.

The salary range displays the minimum and maximum salary targets for this position across all U.S. locations, and the range has not been adjusted for any specific state differentials. It is not typical for a candidate to be hired at or near the top of the range for their role. Final compensation decisions will depend on the unique facts and circumstances of each candidate.

About Aspire Systems

Aspire Systems is a $180+ million global technology services firm with over 4,900 employees worldwide, partnering with 275+ active customers. Founded in 1996, Aspire has grown steadily at a 19% CAGR since 2020.

Headquartered in Singapore, we operate across the US, UK, LATAM, Europe, the Middle East, India, and Asia Pacific regions, with strong nearshore delivery centers in Poland and Mexico. Aspire has been consistently recognized among India’s 100 Best Companies to Work For for 12 consecutive years by the Great Place to Work Institute.

Who We Are

Aspire is built on deep expertise in Software Engineering, Digital Services, Testing, and Infrastructure & Application Support. We serve diverse industries including Independent Software Vendors, Retail, Banking & Financial Services, and Insurance.

Our proven frameworks and accelerators enable us to create future-ready, scalable, and business-focused systems, helping customers across the globe embrace digital transformation at speed and scale.

Why Join Aspire Systems

Being an Aspirian means being part of a future-ready, global workplace where you will work on emerging technologies, collaborate with diverse teams, and contribute to meaningful digital transformation initiatives.

We foster innovation, value diverse perspectives, and enable continuous learning and career growth — guided by our philosophy of “Attention. Always.” Aspire also follows a hybrid work model, promoting flexibility, collaboration, and work-life balance.

Learn more about Life at Aspire:  

Our Commitment to Diversity & Inclusion

At Aspire Systems, we foster a work culture that appreciates diversity and inclusiveness. We understand that our multigenerational workforce represents different regions, cultures, economic backgrounds, races, genders, ethnicities, education levels, personalities, and religions. We believe these differences make us stronger and are committed to building an inclusive workplace where everyone feels respected and valued.

Privacy Notice

Aspire Systems values your privacy. Candidate information collected through this recruitment process will be used solely for hiring purposes, handled securely, and retained only as long as necessary in compliance with applicable privacy laws.

Disclaimer

The above statements are not intended to be a complete statement of job content, but rather to serve as a guide to the essential functions performed by the employee in this role. Organization retains the discretion to add or change the duties of the position at any time.