Senior OpenSearch Developer – C#, .Net, AWS OpenSearch, Terraform – OUTSIDE IR35

Overview

Senior OpenSearch Developer – C#, .Net, AWS OpenSearch, Terraform – OUTSIDE IR35

This is a contract opportunity with Smart Sourcer for a senior developer who will work on greenfield AWS OpenSearch development within a cloud-native, B2B SaaS environment. The role emphasizes real-time OpenSearch processing, infrastructure as code, and DevOps practices as part of an AI-enabled initiative.

Responsibilities

• Lead the design and implementation of AWS OpenSearch based services that can handle large-scale search queries in C#.
• Develop and optimize AWS OpenSearch real-time processing capabilities.
• Migrate multi-table database searches to OpenSearch solutions.
• Architect and deploy infrastructure using IaC (Terraform or AWS CDK).
• Leverage AWS cloud-native technologies to ensure scalability and reliability (e.g., Lambda, ECS, API Gateway, SQS).
• Ensure robust integration between search services and core platforms.
• Apply strong knowledge of distributed systems, performance optimization, and scalable architectures.

Qualifications

• Experience leading the design and implementation of AWS OpenSearch based services in C#.
• Experience with AWS OpenSearch real-time processing.
• Experience migrating complex search worklo to OpenSearch.
• Experience with Infrastructure as Code (Terraform or AWS CDK).
• Experience using AWS cloud-native technologies to ensure scalability and reliability.
• Strong understanding of distributed systems and performance optimization.
• Excellent communication and stakeholder engagement skills.
• Ability to start within 2 weeks and work fully remote.

Employment type

• Contract