Software Development Engineer 4

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Software Development Engineer 4 in Others new

WEX
Full time
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Others
11/09/2026
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Bengaluru, India

Responsibilities

Analyze, refactor, and modernize complex SQL Server stored procedures and embedded business logic.
Write migration scripts, preserve data integrity, and implement CDC, outbox, and event-publishing patterns.
Optimize queries, execution plans, indexes, locking, and database performance.
Build embedding pipelines, vector database implementations, synchronization processes, semantic search, and RAG retrieval infrastructure.
Develop ETL/ELT pipelines and data integrations across SQL Server, PostgreSQL, Snowflake, cloud data services, and NoSQL systems.
Implement database provisioning and configuration using infrastructure-as-code such as Terraform and ARM/Bicep.
Create data quality checks, validation, observability, automated migration tests, and deployment workflows.
Use AI coding assistants and develop AI-powered tooling for stored procedure analysis, schema documentation, and migration assistance.
Partner with application and AI/ML engineers, participate in reviews and on-call support, document solutions, and mentor junior engineers.

Requirements

8–12 years of experience in database engineering or data platform roles, including strong SQL Server experience.
Deep T-SQL proficiency covering complex queries, stored procedures, functions, performance tuning, and execution-plan analysis.
Hands-on experience modernizing legacy database code through refactoring and migration.
Experience developing ETL/ELT workflows, data integrations, batch processing, and streaming workflows.
Programming proficiency in Python or C# for tooling, automation, and data processing.
Experience with Azure SQL, Cosmos DB, Snowflake, or AWS data services.
Familiarity with vector databases such as Pinecone, Weaviate, pgvector, or Azure AI Search.
Understanding of embeddings, RAG concepts, similarity search, and retrieval patterns, with experience or willingness to learn embedding pipeline development.
Strong knowledge of database internals, indexing, query optimization, locking, and transaction isolation.
Experience with event-driven patterns, Kafka, infrastructure-as-code, version control, database migrations, schema versioning, and deployment automation.
Familiarity with NoSQL document databases and key-value stores.
Preferred qualifications include regulated-industry experience, Oracle PL/SQL experience, hands-on RAG or semantic-search development, database tooling or open-source data contributions, and data observability experience.

Benefits

The role includes a 90-day, 6-month, and 12-month development roadmap covering onboarding, stored procedure modernization, embedding or vector implementations, production RAG infrastructure, AI tooling, architectural contributions, and mentoring.
Contributes to AI-native data infrastructure and legacy modernization work with exposure to database engineering, vector technologies, and AI-assisted development.
Participation in an on-call rotation for data platform issues may be required.

WEX

WEX (NYSE: WEX) is the global commerce platform that simplifies the business of running a business. WEX has created a powerful ecosystem that offers seamlessly embedded, personalized solutions for its customers around the world. Through its rich data and specialized expertise in simplifying benef...

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