
Job Description: (Big Data Developer with Java)
Exp – 7+ years
Location – Baner, Pune
Mode of Work: Hybrid (3 days from Baner)
Main Hands on: Bid Data frameworks, Java and AWS EMR
Roles and Responsibilities
- Design, develop, and maintain data pipelines on AWS EMR (Elastic MapReduce) to support data processing and analytics.
- Implement data ingestion processes from various sources including APIs, databases, and flat files.
- Optimize and tune big data workflows for performance and scalability.
- Collaborate with data scientists, analysts, and other stakeholders to understand data requirements and deliver solutions.
- Manage and monitor EMR clusters, ensuring high availability and reliability.
- Develop ETL (Extract, Transform, Load) processes to cleanse, transform, and store data in data lakes and data warehouses.
- Implement data security best practices to ensure data is protected and compliant with relevant regulations.
- Create and maintain technical documentation related to data pipelines, workflows, and infrastructure.
- Troubleshoot and resolve issues related to data processing and EMR cluster performance.
Qualifications:
- Bachelor’s degree in computer science, Information Technology, or a related field.
- 7+ years of experience in data engineering, with a focus on big data technologies.
- Strong experience with AWS services, particularly EMR, S3, Redshift, Lambda, and Glue.
- Proficiency in programming languages Java.
- Experience with big data frameworks and tools such as Hadoop, Spark, Hive, and Pig.
- Solid understanding of data modeling, ETL processes, and data warehousing concepts.
- Experience with SQL and NoSQL databases.
- Familiarity with CI/CD pipelines and version control systems (e.g., Git).
- Strong problem-solving skills and the ability to work independently and collaboratively in a team environment.
NOTE: Two technical rounds has to be taken F2F from Pune office. Hence professionals should be present in Pune.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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