Python/ETL Developer

Wissen; Bengaluru; Hybrid; INR 2,000,000 - 3,200,000; Full time

Job summary

Wissen Technology is hiring a Python/ETL Developer to build and maintain high-performance data engineering platforms for enterprise-scale product ecosystems. The role focuses on designing scalable data pipelines, implementing modern ETL frameworks, and delivering reliable data solutions for mission-critical financial services applications.

We offer a hybrid work arrangement and expect 5–8 years of hands-on experience in Python, PySpark, and ETL/data engineering, with a strong emphasis on

Qualifications

• 5+ years of enterprise Python and data engineering experience.
• 4+ years PySpark for large-scale data processing.
• 5+ years ETL/data pipeline development for batch and real-time workloads.
• Experience designing scalable, fault-tolerant data platforms.
• 3+ years in workflow orchestration with Apache Airflow.
• DBT for data transformation and analytics engineering.
• Strong SQL and data modeling for OLTP systems.
• Develop REST APIs and CI/CD pipelines for automated deployments.
• Familiarity with distributed query engines (Trino/Snowflake).
• Experience using AI-assisted development tools is a plus.

Responsibilities

• Design, develop, and optimize scalable batch and real-time data pipelines.
• Build robust Python and PySpark applications for data engineering.
• Develop and maintain ETL frameworks using Spark, DBT, and Airflow.
• Implement data governance, lineage, security, and compliance.
• Design scalable architectures ensuring reliability and performance.
• Develop and consume RESTful APIs to integrate data platforms.
• Build and maintain CI/CD pipelines for automated workflows.
• Collaborate with architects, product teams, and stakeholders.
• Leverage AI-assisted tools to boost engineering productivity.
• Troubleshoot production issues and optimize query performance.

Skills

Python Development

PySpark

ETL/Data Engineering

System Design

REST APIs

Shell Scripting

CI/CD

AI Tools for coding

Education

BE/BTech/ME/MTech in CS/IT/Engineering

Tools

Apache Spark

Apache Airflow

DBT

SQL / OLTP

Trino / Snowflake

GitHub Copilot / AI assistants

Job description

Bangalore South, India | Posted on 08/18/2026

Wissen Technology is hiring forPython/ETL Developer

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:

Weare hiring a Python/ETL Developer to build and maintain high-performance data engineering platforms for enterprise-scale product ecosystems. The role focuses on designing scalable data pipelines, implementing modern ETL frameworks, and delivering reliable data solutions for mission-critical financial services applications.

Experience

5- 8 Years

Mode of Work

Hybrid

Must Have Skills:

• Python Development (5+ years of hands-on experience in enterprise-grade applications and data engineering solutions)
  
• PySpark & Apache Spark (4+ years in distributed data processing and large-scale data transformation)
  
• ETL/Data Engineering/Data Pipeline Development (5+ years building batch and real-time data processing pipelines)
  
• System Design & High-Volume Processing (experience designing scalable and fault-tolerant data platforms)
  
• Apache Airflow (3+ years in workflow orchestration, scheduling, and monitoring)
  
• DBT (Data Build Tool) for data transformation, modeling, and analytics engineering
  
• SQL, RDBMS & OLTP Systems (strong expertise in query optimization, database fundamentals, and data modeling)
  
• REST APIs, Shell Scripting, and CI/CD implementation for automated deployment and operational excellence
  
• Query Engines such as Trino, Snowflake, or equivalent distributed data technologies
  
• AI-Powered Developer Assistants such as GitHub Copilot, Claude, Qwen, or equivalent AI code generation tools.
  

Good to Have:

• Autosys job scheduling and enterprise workload automation
  
• AI/ML, Generative AI, and RAG (Retrieval-Augmented Generation) concepts
  
• Big Data ecosystem technologies and distributed computing platforms
  
• Data Modeling for enterprise-scale analytics and operational systems
  
• DevOps practices with Kubernetes (K8s), Docker, and cloud-native deployments
  
• Unix/Linux administration and scripting experience
  
• Banking domain expertise with AML (Anti-Money Laundering) or Capital Markets project

Professional Attributes & Qualifications:

• Education: BE/BTech/ME/MTech in Computer Science, Information Technology, Engineering, or related discipline
  
• Leadership: Experience mentoring junior developers and contributing to technical decision-making
  
• Ownership: Proven ability to drive end-to-end delivery of data engineering solutions from design through production deployment
  
• Problem Solving: Strong analytical mindset with experience troubleshooting complex distributed systems
  
• Quality Focus: Commitment to coding standards, performance optimization, testing, and operational excellence
  
• Communication: Strong oral and written communication skills with the ability to collaborate across global teams
  
• Collaboration: Excellent stakeholder management skills and a strong team-player attitude
  

Key Responsibilities:

• Design, develop, and optimize scalable batch and real-time data pipelines capable of handling high-volume data workloads
  
• Build robust Python and PySpark applications to support enterprise data engineering and analytics use cases
  
• Develop and maintain ETL frameworks using Apache Spark, DBT, and Airflow for efficient data processing
  
• Implement data governance, lineage, security, and compliance standards across multiple data layers
  
• Design scalable system architectures and ensure reliability, availability, and performance of data platforms
  
• Develop and consume RESTful APIs to integrate data platforms with upstream and downstream systems
  
• Build and maintain CI/CD pipelines to automate testing, deployment, and operational workflows
  
• Collaborate closely with architects, product teams, and business stakeholders to deliver high-quality solutions
  
• Leverage AI-assisted development tools to improve engineering productivity and accelerate feature delivery
  
• Troubleshoot production issues, optimize query performance, and ensure operational stability of data system.