Senior .NET Backend Engineer - Multi-Tenant SaaS

Tekgence Inc; Jersey City (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Tekgence Inc. in Jersey City, NJ, seeks a Senior Multi-Tenant .NET Backend & Integration Engineer to build high-performance multi-tenant APIs on AWS.

You will implement data access to DynamoDB, PostgreSQL, and external client sources, while guiding infrastructure and cross-network integration. This hands-on role collaborates with DevOps and network teams to ensure secure, scalable connectivity, and requires deep .NET Core experience, ORM skills, and customer data integration across heterogeneous

Qualifications

• Experience with DynamoDB and PostgreSQL, plus writing data access layers for external sources.
• Real-world SaaS multi-tenancy implementation, including tenant isolation and context middleware.
• Understanding of VPCs, AWS PrivateLink, and firewall concepts for guided networking.
• Familiarity with cloud deployment tools (Terraform, AWS CDK) to streamline pipelines.

Responsibilities

• Develop and optimize multi-tenant APIs using C# and .NET Core that query diverse data sources.
• Provide architectural guidance to DevOps and Network Engineering teams for infrastructure needs.
• Collaborate on integration testing to verify secure backend connections to external data centers.
• Diagnose cross-network data routing issues between AWS-hosted APIs and remote databases.

Skills

DynamoDB

PostgreSQL

C# / .NET Core

EF Core / Dapper

SaaS multi-tenancy

Hybrid networking concepts

DevOps liaison

Tools

Terraform

AWS CDK

Job description

Tekgence Inc. in Jersey City, NJ, seeks a Senior Multi-Tenant .NET Backend & Integration Engineer to build high-performance multi-tenant APIs on AWS.

You will implement data access to DynamoDB, PostgreSQL, and external client sources, while guiding infrastructure and cross-network integration. This hands-on role collaborates with DevOps and network teams to ensure secure, scalable connectivity, and requires deep .NET Core experience, ORM skills, and customer data integration across heterogeneous