Sr. Developer

Cognizant; Chennai District; Hybrid; INR 1,200,000 - 1,800,000; Full time

Job summary

Cognizant in Chennai is hiring a senior developer to build cloud-based data solutions on AWS and optimize SQL performance in a hybrid work model. The role focuses on scalable data integration and catalog features, ensuring reliable access to critical information assets and supporting business growth.

You will design resilient applications, mentor junior developers, collaborate with architects and product stakeholders, and contribute to data governance and quality initiatives across data

Qualifications

• Hands-on experience with AWS data storage processing and orchestration.
• Strong SQL query design and performance optimization skills.
• Experience implementing data catalog solutions and metadata management.

Responsibilities

• Design and implement robust data integration solutions using AWS and SQL techniques.
• Develop and optimize SQL queries and database structures for performance and latency reduction.
• Configure and maintain data catalog capabilities with clear metadata and lineage.
• Collaborate with architects and stakeholders to translate requirements into scalable designs.
• Create reusable data ingestion, transformation, and validation components.
• Perform root cause analysis on data and performance issues and implement fixes.
• Integrate data from multiple sources with quality checks and governance controls.
• Document data flows and configurations for maintainability.
• Collaborate with QA to design test strategies and performance benchmarks.
• Mentor junior developers on SQL tuning and AWS best practices.

Skills

AWS services

SQL tuning

Data integration

Data catalog

Hybrid delivery

Root cause analysis

Mentoring

Job description

Job Summary

Serve as a senior developer specializing in cloud based data solutions using AWS services and advanced SQL performance tuning within a hybrid work model. Contribute to designing scalable data integration and catalog capabilities that ensure reliable access to critical information assets. Apply strong problem solving skills and domain awareness in devices to deliver resilient applications that support business growth and positive customer outcomes.

Job Summary

Serve as a senior developer specializing in cloud based data solutions using AWS services and advanced SQL performance tuning within a hybrid work model. Contribute to designing scalable data integration and catalog capabilities that ensure reliable access to critical information assets. Apply strong problem solving skills and domain awareness in devices to deliver resilient applications that support business growth and positive customer outcomes.

Responsibilities

• Design and implement robust data integration solutions that efficiently move and transform data across diverse systems using AWS cloud services and advanced SQL techniques.
• Develop and optimize complex SQL queries and database structures to improve performance reduce latency and ensure reliable access to critical operational and analytical data.
• Configure and maintain data catalog capabilities that provide clear data definitions lineage and standardized metadata to enhance data discovery and responsible reuse across teams.
• Collaborate with architects and product stakeholders to translate business requirements into secure scalable and maintainable application and data layer designs.
• Create reusable components and frameworks for data ingestion transformation and validation that improve consistency and reduce development effort across projects.
• Perform detailed root cause analysis on data and performance issues and implement corrective actions that prevent recurrence and improve system stability.
• Integrate data from multiple internal and external sources while applying quality checks and governance controls that support accurate reporting and regulatory compliance.
• Document technical solutions data flows and configuration details in a clear and structured manner to support smooth handovers and long term maintainability.
• Collaborate with quality engineering teams to design test approaches data validation scenarios and performance benchmarks that reflect realistic production conditions.
• Mentor junior developers by sharing practical techniques for SQL tuning data modeling and AWS best practices that elevate overall team capability and delivery quality.
• Apply domain understanding in devices where applicable to design data structures and integration flows that reflect real world device behaviors and usage patterns.
• Coordinate effectively within the hybrid work model using online collaboration tools and structured communication practices to maintain alignment on deliverables.
• Contribute to continuous improvement initiatives by suggesting enhancements to data pipelines monitoring setups and deployment processes that increase efficiency and resilience.
  
  

Qualifications

• Demonstrate hands on expertise with AWS cloud services related to data storage processing and orchestration along with practical experience in hybrid delivery environments.
• Exhibit strong proficiency in SQL query design and performance tuning across large datasets and transactional workloads using industry standard relational databases.
• Show proven capability in implementing and managing data catalog solutions that support consistent metadata management data lineage tracking and data discovery.
• Display solid experience in data integration patterns including batch processing streaming and event driven approaches using contemporary integration tools.
• Possess practical knowledge of core SQL concepts such as indexing query optimization execution plans and normalization to support high performing systems.
• Bring familiarity with devices related domain concepts including telemetry data usage events and configuration records to inform effective data model and pipeline design.
• Demonstrate strong analytical and communication skills that support clear explanation of technical choices tradeoffs and their impact on business outcomes.
• Show experience working in structured day shift environments with hybrid collaboration while adhering to security compliance and data privacy expectations.
  
  

Certifications Required

Preferred certifications include AWS Certified Data Analytics Specialty or AWS Certified Developer Associate and any recognized SQL database performance tuning certification.