Middleware Developer

Job Description: Middleware Developer

Full-Time

Mid-Level / Senior

3–8 Years

1. Job Overview

• Job Title: Middleware Developer
• Experience: 3–8 Years
• Employment Type: Full-Time
• Department: Engineering / Software Development
• Location: Hyderabad / Bangalore / Pune / Chennai
• Work Mode: Hybrid / On-site / Remote
• Open Positions: 2

2. Job Summary

We are looking for an experienced Middleware Developer to design, develop, configure, integrate, and maintain middleware solutions that enable seamless communication between enterprise applications, databases, and external systems.

The ideal candidate should have hands-on experience with middleware technologies, enterprise application integration (EAI), API management, messaging systems, and distributed application environments.

3. Key Responsibilities

• Design, develop, and maintain middleware applications and integration solutions.
• Build and manage integrations between enterprise applications and third-party systems.
• Develop APIs, web services, and message-based integration components.
• Configure and maintain middleware platforms and application servers.
• Implement application-to-application communication using REST, SOAP, and messaging protocols.
• Work with message brokers such as Kafka, RabbitMQ, IBM MQ, or ActiveMQ.
• Develop data transformation, mapping, and routing logic.
• Configure authentication, authorization, and secure communication between services.
• Monitor middleware services and troubleshoot integration failures.
• Optimize middleware performance, scalability, and availability.
• Implement logging, error handling, retry mechanisms, and transaction management.
• Collaborate with development, QA, infrastructure, and DevOps teams.
• Support middleware deployment, upgrades, and production maintenance.
• Prepare technical documentation and participate in code reviews.

4. Required Technical Skills

Skill

Required Knowledge

Programming

Java / Python / JavaScript

Middleware Platforms

IBM WebSphere, Oracle WebLogic, JBoss / WildFly

Integration Technologies

IBM App Connect / MuleSoft / WSO2

API Integration

REST APIs, SOAP, Web Services

Messaging

IBM MQ, Apache Kafka, RabbitMQ, ActiveMQ

Data Formats

XML, JSON, XSD, XSLT

Protocols

HTTP, HTTPS, TCP/IP, JMS

Database

Oracle, MySQL, PostgreSQL, SQL Server

Security

SSL/TLS, OAuth 2.0, JWT

Application Servers

Tomcat, WebLogic, WebSphere

Monitoring

Splunk, ELK, Grafana

Version Control

Git, GitHub, GitLab

CI/CD

Jenkins, GitLab CI, GitHub Actions

Deployment

Docker, Kubernetes

5. Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• 3–8 years of experience in middleware development, integration, or enterprise application development.
• Hands-on experience with at least one middleware or integration platform.
• Strong understanding of application integration patterns and distributed systems.
• Experience developing and consuming REST and SOAP web services.
• Knowledge of message queues and asynchronous communication.
• Experience with XML, JSON, data transformation, and mapping.
• Understanding of application security and communication protocols.
• Experience troubleshooting middleware and integration issues.
• Strong analytical and problem-solving skills.

6. Preferred Qualifications

• Experience with MuleSoft Anypoint Platform, IBM App Connect, or WSO2.
• Knowledge of enterprise service bus (ESB) architecture.
• Experience with IBM MQ, Kafka, or RabbitMQ.
• Familiarity with cloud integration platforms and services.
• Knowledge of microservices architecture.
• Experience with containerization using Docker and Kubernetes.
• Understanding of high availability, load balancing, and disaster recovery.
• Experience supporting enterprise production environments.

7. Key Competencies

• Strong understanding of enterprise integration architecture.
• Good backend programming and debugging skills.
• Knowledge of API and messaging integration patterns.
• Ability to troubleshoot complex system integration issues.
• Strong communication and collaboration skills.
• Ability to work in an Agile development environment.

8. Key Performance Indicators (KPIs)

• Middleware application availability and reliability.
• Successful integration between enterprise applications.
• Message processing efficiency and throughput.
• Reduction in integration failures.
• API and messaging performance.
• Timely resolution of production issues.
• Quality of integration solutions and documentation.

9. Interview Process

• Initial technical screening.
• Middleware platform and architecture round.
• API and application integration technical round.
• Practical troubleshooting / coding assessment.
• Managerial / HR discussion.

10. Candidate Search Keywords

• Middleware Developer
• Middleware Engineer
• Middleware Integration Developer
• Enterprise Integration Developer
• Integration Developer
• MuleSoft Developer
• IBM Middleware Developer
• WebSphere Developer
• WebLogic Developer
• WSO2 Developer
• IBM App Connect Developer
• ESB Developer
• API Integration Developer
• Enterprise Application Integration Engineer
• Messaging Middleware Developer
• Middleware Support Engineer

11. Technical Screening Questions

• What is middleware, and why is it used in enterprise applications?
• What is the difference between middleware and an API?
• Explain Enterprise Service Bus (ESB) architecture.
• What is the difference between synchronous and asynchronous communication?
• What is the role of IBM MQ or RabbitMQ?
• Explain REST and SOAP web services.
• What are XML, XSD, and XSLT?
• How do you handle message failures and retries?
• What is message queuing and message routing?
• How do you troubleshoot middleware connectivity issues?
• What is the difference between WebSphere and WebLogic?
• How do you monitor middleware application performance?

12. Boolean Search String

Use this search string in Naukri, LinkedIn, or JobDiva:

("Middleware Developer" OR "Middleware Engineer" OR "Integration Developer" OR "ESB Developer" OR "Enterprise Integration Developer") AND (Middleware OR MuleSoft OR WebSphere OR WebLogic OR WSO2 OR "IBM App Connect") AND (REST OR SOAP OR API OR JMS) AND (Kafka OR RabbitMQ OR "IBM MQ" OR ActiveMQ) AND (XML OR JSON OR XSLT)

13. JobDiva Recruitment Details

Field

Details

Job Title

Middleware Developer

Experience

3–8 Years

Employment Type

Full-Time

Openings

2

Primary Skills

Middleware Development, Enterprise Integration

Middleware Platforms

MuleSoft / IBM App Connect / WSO2

Application Servers

WebSphere / WebLogic / JBoss

API Technologies

REST / SOAP / Web Services

Messaging

IBM MQ / Kafka / RabbitMQ

Data Formats

XML / JSON / XSLT

Programming

Java / Python / JavaScript

Additional Skills

Docker / Kubernetes / CI/CD

Must-have skills

Middleware Development, Enterprise Application Integration, REST/SOAP APIs, Messaging Systems, XML/JSON, and troubleshooting.

Recruitment tip

Middleware is a broad category. Confirm the candidate's actual platform experience before shortlisting. For example, a MuleSoft Developer, IBM WebSphere Administrator, and IBM MQ Developer have different skill sets. Prioritize candidates with hands-on development and integration experience rather than only middleware administration or production support.