Java Developer (Java + Spark)

Overview

W issen Technology is Hiring fo r Java Developer (Java + Spark)

About Wissen Technology:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients with the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary: We are seeking a skilled Java Developer with hands-on experience in Java and Spark to build scalable data processing solutions. You'll contribute to high-performance data pipelines and analytics platforms in a dynamic Agile environment.

Experience: 4- 7 Years

Location: Bangalore

Mode of Work: Full time

Key Responsibilities:

• Design and develop Java applications integrated with Apache Spark for ETL processes, data transformations, and analytics.
  
• Build and optimize Spark jobs (Spark SQL, DataFrames, Streaming) for large-scale data processing.
  
• Collaborate with data engineers and analysts to implement robust data workflows.
  
• Write clean, maintainable Java code following best practices (Spring Boot, Microservices preferred).
  
• Perform code reviews, unit testing, and contribute to CI/CD pipelines.
  
• Troubleshoot and optimize Spark performance for production workloads.
  
• Document technical solutions and mentor junior developers.
  
  

Requirements:

• 4-7 years of hands-on Java development experience.
  
• Strong expertise in Apache Spark (Spark Core, Spark SQL, PySpark basics).
  
• Proficiency in Java 8/11+ with multithreading and collections frameworks.
  
• Experience with data processing (ETL, data pipelines, big data).
  
• Familiarity with build tools (Maven/Gradle) and version control (Git).
  
• Strong problem-solving skills and Bangalore location availability.
  
• Excellent communication skills for cross-team collaboration.
  
  

Good To Have Sk ills:

• Experience with Snowflake for cloud data warehousing.
  
• Knowledge of DBT (Data Build Tool) for analytics engineering.
  
• Python scripting for data manipulation and automation.
  
• Exposure to AWS/GCP/Azure cloud platforms.
  
• Familiarity with Kafka, Airflow, or containerization (Docker/Kubernetes).
  
  

Wissen Sites:

Website: www.wissen.com

LinkedIn: https://www.linkedin.com/company/wissen-technology

Wissen Leadership: https://www.wissen.com/company/leadership-team/

Wissen Live: https://www.linkedin.com/company/wissen-technology/posts/feedView=All
Wissen Thought Leadership: https://www.wissen.com/articles/