SQL developer with Python

Wissen Technology is Hiring for SQL developer with Python 

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 looking for an experienced Database Developer with strong expertise in SQL, Python, and ETL tools to join our dynamic data team.   

Experience: 4 10 years 

Location:  Mumbai 

Mode of Work: Full time -hybrid 

Key Responsibilities:  

• Write efficient SQL queries for data extraction, transformation, and analysis. 
  
• Develop Python scripts for automation, data manipulation, and data processing tasks. 
  
• Work with Informatica, Talend, or other ETL tools for data integration and workflow orchestration.  
  
• Collaborate with data architects, analysts, and business stakeholders to understand data requirements and deliver reliable solutions. 
  
• Troubleshoot and optimize data workflows and scripts for performance and scalability. 
  
• Ensure data quality, consistency, and integrity throughout the pipelines. 
  
• Document ETL processes, data models, and technical specifications . 
  

Requirements:  

• 4+ years of professional experience in SQL development and working with any RDBMS (e.g., Oracle, MS SQL Server, MySQL, PostgreSQL) 
  
• Strong experience in Python scripting for data processing and automation tasks. 
  
• Experience working with Informatica, Talend, or other ETL tools. 
  
• Good understanding of data warehousing concepts and relational database design. 
  
• Ability to write efficient, clean, and maintainable code. 
  
• Knowledge of performance optimization techniques for large-scale data processing. 
  
• Strong analytical and problem-solving skills. 
  
• Good communication skills to collaborate effectively with cross-functional teams. 
  

  Good to have skills:  

• Experience with cloud data platforms such as AWS Redshift, Azure Synapse, or Google BigQuery. 
  
• Familiarity with NoSQL databases (MongoDB, Cassandra, etc.). 
  
• Exposure to data visualization tools (Power BI, Tableau, or Qlik). 
  
• Knowledge of CI/CD pipelines, Git, and version control best practices. 
  
• Experience with Unix/Linux shell scripting for automation. 
  
• Understanding of data governance, lineage, and quality frameworks 
  

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