


Integration Developer
Job Description
Roles and Responsibilities
- Design, Code, test, debug, implement and document complex WSO2 sequences.
- Monitoring and logging tool stacks - Splunk/ELK/Prometheus, Grafana 4 Design, Code, test, debug, implement and document complex WSO2 sequences.
- Perform Build activities for WSO2 ESB Middleware integration, involves writing XSLT, ESB coding, configuration, and Analysis activities.
- Trouble shooting various problems in different stages of development using logs files, Traces and Log Analyzer.
- Responsible for understanding the requirement, solution design, coordinate the development and testing activities (end to end)
- Guide the team regarding WSO2 platform best practices, framework, reusable artefacts and ensure code quality and timely deliverables.
- Work with functional and technical customers to determine solutions that drive additional business value.
- Work with Github, Azure Devops and CI tools to automate dev, build, deployment and testing.
- Good knowledge in messaging brokers: WSO2 Message Broker, Apache Kafka.
- Monitoring the server (Monitoring logs and WSO2 metrics).
- Desired Candidate Profile
Desired Candidate Profile
- Candidate must have minimum 2+ years of hands-on experience in WSO2, preferably with WSO2 certification.
- Extensive experience in Integration by using WSO2 Product Stack (API Manager 2.6/3.x, Enterprise Integrator 6.5 and Identity Server 5.7.0)
- Experience in Implementing APIs in WSO2 EI and On-boarding APIs into WSO2 API Manager
- Experience in WSO2 API Manager for designing API facades and designing and implementing API Proxies.
- Hands-on experience in designing and developing high volume web services using API Protocols and Data Formats (REST, JSON, SOAP & XML).
- Must have hands on experience / knowledge with CI tools to automate dev, build, deploy.
- Experience in programming languages: Java, JavaScript, Python
- Experience in on boarding web applications into WSO2 Identity Server for authentication and authorizatio
Qualifications
- Minimum of a Bachelor's or Master’s degree in Computer Science, or a related four-year degree.
- 4 years of hands on experience in Integration

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Job Description
We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.
Key Responsibilities
- Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
- Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
- Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
- Drive code reviews, technical discussions, and ensure high code quality and performance standards.
- Troubleshoot critical production issues and implement long-term fixes and improvements.
- Advocate for continuous improvement in tools, processes, and systems across the engineering team.
- Stay up to date with modern technologies and recommend their adoption where appropriate.
Required Skills
- 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
- Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
- Proven experience leading a team of engineers or taking ownership of modules/projects.
- Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
- Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
- Excellent problem-solving, debugging, and analytical skills.
- Strong communication and leadership skills.
About HummingWave
HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.
Thanks

• As a Python full-stack developer, your role would involve design development and deploy full-stack applications out of Artificial intelligence projects with a focus on low latency and scalability.
• You also need to optimize the application for better performance and a large number of concurrent users.
• A strong technologist we care about doing things the right way rather than just doing them and thrives in a complex and challenging environment.
Who are we looking for?
• Bachelors / Masters in Computer Science or equivalent with at least 3+ years of professional experience.
• Solid understanding of design patterns, data structures, and advanced programming techniques
• As an Engineer in our team, you will design, code, test, and debug quality software programs.
• Strong software design and architectural skills in object-oriented and functional programming styles.
• Python, Celery, RabbitMQ, Kafka, Multithreading, Async, Microservices, Docker, Kubernetes.
• Experience in working with Machine Learning Pipelines
• Experience in Reactjs.
• Experience in Celery, RabbitMQ/Kafka.
• Experience in Unit Testing Tools.
• Experience in working with SQL & NonSql databases such as MySQL, Mongo DB.
• Exposure to cloud technologies.
• Demonstrate the ability to work in a fast paced and hyper-growth environment where the requirements are constantly changing.
• Nice to have: Experience developing products containing machine learning use cases.
• Familiar with agile techniques like code reviews, pair programming, collective code ownership, clean code, TDD and refactoring.



What are we looking for?
We are looking for hands-on coders who love what they do, have high attention to detail and are looking for challenging opportunities which involve building products from scratch. Someone who is proactive, and always keen to learn.
What will you be doing?
On a daily basis, some of your work will involve but is not limited to:
- Write clean, secure, and well-tested code
- Build tools and integrate systems to scale the effectiveness of the product
Work Culture at Merge:
Commitment to excellence - In every output, we produce as individuals and as a company, we have to strive for world-class quality. We’re making a change in the world. It will push us out of our comfort zones. We operate in a rapidly changing market and strive to deliver high-quality products faster than anyone else.
We get it done - We take ownership of what we do. Working here is about really, truly owning everything you do. There’s no such thing as “Not my job.” If you see a problem that needs solving, you can – and should – be the one to solve it
Requirements
Skills That Will Help You Excel At Merge
- You have 2 to 5 years of experience building highly reliable and scalable backend systems
- Experience in two or more languages. Go, Node.js, Python, or Java would be ideal.
- You have experience in high-throughput distributed systems and microservices
- Experience with AWS and CI/CD workflow
- Driven, and passionate about building products
- You take ownership of your code
- You have good communication skills in English
- You are familiar with security best practices
JOB DESCRIPTION:
Roles and Responsibility :
- Lead and build the team in development
- Participate in the technical design of projects we made for our Clients
- Supervise and write efficient and reliable code; use best practices with our team
- Organize and participate code reviews
- Setup unit and integration tests
- Architecture and design of reusable server components
- Developing high performing REST APIs for application functionality
- Develop and maintain scalable server architecture serving millions of users every day.
Must Have Skill Sets :
- Should have 5+ years of experience in Mobile/web server and application development
- Mandatory: Strong development skills in Python ,Node.js, Typescript, Django Rest Framework, Linux, MongoDB
- Experience with client technologies like JavaScript, CSS3, HTML5, bootstrap, Angulars, React, Android App a plus
- Strong knowledge of data structures and computer fundamentals
- An ability to refract and understand large and separate code bases
- Experience with third-party libraries and APIs
- Forward-looking on potential technology choices
- Experience in building highly scalable, reliable systems
- Team handling experience.

About us:-
Zupee is India's hottest Real Money Gaming Platform
With in 1 yr of start, we just had an initial team of around 30 people, these 30 were successful to bring 10 Million+ users and an overall consumer spend of 1.5 Billion USD on the platform, the journey which needed years to be covered was covered with in 1yr. As we speak today, Zupee has been profitable for almost an year now and has ended the year 2020 with a team size of 70+ and over all growth rate was mapped around 20X.
Our user base has significantly gone up and we have invested highly in technology and have got best in class tech stack, it's time to add the backend developers who can help us scale up the platform so that we can drive profitable growth and become the market leader in our space.
Backend Developer :- (3 - 12 yrs)
What You'll Need?
- Knowledge of languages (JavaScript, Python) and frameworks/systems (nodejs)
- Strong analytical skills and aptitude
- Understanding of data architecture, software design and best coding practices
- Understanding of TCP/IP networking concepts and technologies
- Ability to learn new languages and technologies
- Experience with databases (both SQL and NoSQL)
- Familiarity with Agile development methodologies
- Working knowledge of Linux

Technologies
Must have Core JAVA, J2EE, Multithreading, OOPS, and Multiprocessing
Great to have RabbitMQ, Netty, XML, JSON, Messagepack
Huge Advantage: Good at mathematics, statistics, complex data structures, algorithms, and design patterns
Other skills
- Ability to understand most complex and challenging problems and solve them from users’ view point
- Ability to create and present software designs (as per the aligned solution) to the product owner
- Ability to build and create modules from scratch.
- Ability to write, understand and deal with large code base
- Experience in understanding and implementing design patterns
- Ability to provide technical leadership to a team of equally talented, efficient and motivated engineers
Roles and responsibilities
- Responsible for solving the most complex and seemingly impossible problems related to variety of dimensions of software engineering. Dealing with Big Data to Complex Data Structures, From Inter Process Communication to sub 100 MilliSec server responses, From Distributed Systems to 99.999 Availability.
- Responsible for providing technical leadership to a team of 3-4 Engineers
- Responsible to drive delivery of a project/module and report to Product Owner
- Responsible for functional/technical tracking of a project/module
Responsibility Split
- 80% Technology, 20% Team management
- With 80:20 split this is definitely a technology oriented role suitable for geeks.


