Java & WSO2 Developer at MS · Chennai · 5 - 10 years · ₹1L - ₹15L / yr · Posted 4 Jul 2023
Purpose
To design, develop, test, and maintain integrated software applications, systems, and platforms
Responsible for ensuring that the software created is reliable, scalable, and secure
The candidate should use his/her expertise to maintain enterprise wide upstream and downstream integration
solutions that help organizations achieve their business goals and provide value to end-users
Key Accountabilities
Responsibilities will include but will not be restricted to:
Designing and developing solutions at middleware and integration layer
Ensure the best standards are followed for integrating with multiple upstream and downstream
applications
Documenting and Developing APIs which are fault tolerant, performance oriented and allow for publishing
across multiple sources
Ensure management of the interfaces on the WSO2 EI platform
Ensure continuous monitoring, troubleshooting, and debugging
Ensuring that the integrations development is part of the overall CI/CD pipeline
Working with stakeholders to ensure that integration solutions meet business requirements and are
delivered on time
Technical Requirements
A Bachelor’s degree in Computer science, software engineering, or any other equivalent field
Has 6+ years of experience in the field of software engineering or software development
Experience with WSO2 middleware technologies like WSO2 Enterprise Integrator (EI), WSO2 API Manager,
and WSO2 Identity Server
Experience in developing multiple type interfaces such as SOAP, REST, WebHooks, GraphQL and having
knowledge of working on changing one type to other
Software development skills including proficiency in a modern programming language such as
Java/C++/Python/Golang.
The ideal candidate should have worked on application development within an enterprise ecosystem.
The person should also have the necessary knowledge to connect to systems like mail, DB, external
systems, or APIs etc.
Ideally the person should have demonstrated creating common interfaces or adapters for interactions
between heterogeneous systems with least amount of code change or no code change at all on both the
integrating systems.
The person needs to be hands on and should be able to write code and review the code of teammates.
Desired Personal Qualities and Behavior
Excellent relationship management skills with the ability to engage, negotiate and manage key
stakeholders and suppliers.
Excellent communication, interpersonal and influencing skills.

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Experience and Required Skill Sets:
1 Solid experience in software design and development using Microsoft ASP.NET framework, C#, Visual Studio, and in writing clean, readable, and easily maintainable code
2 5+ years of experience in WCF, WPF, VB.NET, SQL Server, JQuery, Angular 10 and above.
3 5+ years of experience in developing highly scalable REST/Web APIs
4 5+ years of experience in developing highly efficient SQL/NoSQL Queries
5 5+ years of experience in Relational and Document databases
6 Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.
7 Experience in using the MVC framework, working knowledge in APIs, and Service Oriented Architecture
8 Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.
9 Experience in Angular version 10 and above is required
10 Expert in SQL programming & Database Design (Stored procedure, Function, Trigger, Constraints, Replication)
11 Strong ability in HTML and JavaScript (AJAX, DOM)
12 Development experience with data integration technologies including REST, SOAP, JSON, XML
13 Expertise in programming and usage of any unit testing framework. Expertise in integration testing and continuous integration.
14 Experience working in a DevOps environment will be an added advantage.
Responsibilities:
• Ability to create complex, enterprise-transforming applications that meet and exceed client expectations.
• Responsible for the bottom line. Strong project management abilities. Ability to encourage the team to stick to timelines.
• Follow best-in-class coding practices and review the solutions vis-à-vis the requirements and technical specifications.
• Should demonstrate strong client interfacing capabilities like emails and calls with clients in the US/UK
Location: Bangalore (Hybrid)
Experience: 4–8 Years
About the Role
At Twenty20 Systems, we are looking for a Senior Software Engineer (Integration) who can build and support scalable integrations across enterprise applications, APIs, and data systems.
This role is ideal for someone who is hands-on, technically strong, and excited to solve real integration challenges in a fast-paced environment. You will work closely with engineering, product, and delivery teams to build reliable integration solutions while contributing to architecture and engineering best practices.
What You’ll Do
- Design, develop, and maintain enterprise integrations, APIs, and automation workflows across internal and third-party systems.
- Build and manage integrations using Workato and other iPaaS/middleware platforms.
- Develop and optimize API-based services, data pipelines, and workflow automations for business-critical use cases.
- Work with product, engineering, and business teams to understand requirements and build scalable solutions.
- Troubleshoot, monitor, and improve integration performance in production environments.
- Build reusable components, connectors, and automation logic to improve delivery efficiency.
- Ensure integrations follow security, reliability, performance, and governance standards.
- Support delivery teams in resolving integration issues and improving system performance.
Requirements
- 4–6 years of experience in software engineering, middleware, or enterprise integrations.
- Strong hands-on experience in Workato (Boomi, MuleSoft, WSO2, TIBCO experience is a plus).
- Good understanding of REST/SOAP APIs, webhooks, OAuth, and connector-based integrations.
- Strong skills in JSON, XML, SQL, JavaScript/Python, and data transformation logic.
- Experience working with enterprise applications like Salesforce, NetSuite, Workday, Snowflake, Shopify, etc.
- Exposure to cloud platforms (AWS/Azure/GCP) and automation architectures is a plus.
- Good debugging, troubleshooting, and problem-solving skills.
- Ability to work in a fast-paced delivery-oriented environment with strong ownership.
What Your First 3 Months Will Look Like
- Take ownership of assigned integration projects and support ongoing delivery pipelines.
- Work on API integrations, automations, and troubleshooting real-time production scenarios.
- Collaborate with senior engineers and product teams to improve integration quality and performance.
Where You’ll Be in 6 Months
- Independently handling multiple integration workflows and delivery requirements.
- Contributing to reusable frameworks and engineering best practices.
- Becoming a key technical contributor for integration design and production support.
- Driving faster delivery through automation and optimized integration patterns.








