Sr .NET Developer

Job Description: Position:

Back-End - .NET Developer with AWS & OpenSearch/ElasticSearch experience

Type: Onsite NJ -Jersey City - Contract for 3 months contract
Description:
Looking for an experienced - .NET Developer with AWS and OpenSearch or Elasticsearch experience. The ideal candidate should be capable of maintaining and enhancing the existing search application. Need someone with hands-on development experience working with OpenSearch or Elasticsearch.

They must have demonstrated expertise in connecting to Elasticsearch/OpenSearch programmatically to create collections, index documents, delete documents, and perform advanced searches on collections. Experience with query optimization and handling large-scale datasets is essential.
Candidates should also have a good understanding of Elasticsearch/OpenSearch APIs and troubleshooting common issues.

Familiarity with implementing custom analyzers, tokenizers, and relevance tuning is a plus.

This position requires development-focused experience, not just operational familiarity.
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Responsibilities:
Design and maintain a .net -based application that communicates with OpenSearch for data indexing and retrieval.
Optimize complex search queries to ensure efficient content retrieval.
Monitor and improve search performance, including query speed, indexing efficiency, and system resource usage.
Use profiling and monitoring tools to diagnose and resolve performance issues.
Create and maintain comprehensive documentation for search configurations, customizations, and integration processes.
Collaborate with front-end developers to integrate user-facing elements with server-side logic.
Write clean, scalable, and efficient code to improve existing software for optimal performance.
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Requirements:
Proven experience (10-15 years) as a .NET Developer.
Hands-on experience (3 years) with OpenSearch and/or Elasticsearch, including the design, implementation, and maintenance of search solutions.
Experience in creating and maintaining APIs.
Strong experience in backend development, including deployment tools like Bamboo, Git, Bitbucket, and Octopus.
Familiarity with containerization technologies such as Docker, Kubernetes, and AWS EKS.
Experience with cloud NOSQL database services like DynamoDB and Document DB.
Basic knowledge of cloud infrastructure services (e.g., VPC, EC2, S3, Lambda).
Strong problem-solving and troubleshooting skills.
Strong verbal and written communication skills.
Familiarity with Agile methodologies.
AWS certifications (e.g., AWS Certified Developer, AWS Certified Solutions Architect) are a plus.
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Mandatory Skills:
.NET/C#
OpenSearch or Elasticsearch experience.
AWS proficiency.
Decent communication skills, as the candidate will interact with cross-functional teams.
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Good to Have:
Experience with Document DB.
Comments for Suppliers: Vendors: please pre-screen the candidates based on all the criteria before submitting the resume. I am only looking for NJ Onsite candidates