Lead .NET Engineer: REST/Microservices & Cloud Security

Ethereum Technologies LLC; Fort Mill (SC); On-site; USD 110,000 - 150,000; Full time

Job summary

ETHEREUM TECHNOLOGIES LLC is seeking a skilled .NET developer with deep expertise in C# and multithreading to design and implement RESTful web services and microservices. The role requires strong security practices, caching strategies, and integration with AWS services such as Lambda, API Gateway and S3.

Experience coordinating with offshore teams and engaging with stakeholders is valued. The ideal candidate will demonstrate proficiency in SQL Server, SSIS/SSRS, and patterns for scalable SaaS

Qualifications

• Advanced proficiency in C# with Multithreading and Async programming.
• Proven experience in REST API and Microservices using ASP.NET WebAPI; ASP.NET MVC experience alone is NOT acceptable.
• Expertise in securing web applications using Authentication Tokens, Certificates, OAuth, etc.
• Hands-on experience with Caching and Distributed Caching; Proficiency in Pub/Sub, Queues/Topics, and Message Brokers (at least one queuing system).
• Strong knowledge of SQL Server including Joins, Stored Procedures, Functions, and writing complex queries; Experience with SSIS and SSRS; AWS services: Lambda, CloudWatch, API Gateway, S3, EC2, SNS, SQS, ELB; IAM, Authorization and Access Control, SaaS architecture.
• Familiarity with modern UI frameworks is a plus.

Skills

C# Multithreading

Async programming

OOP SOLID

Design Patterns

REST API

Microservices

ASP.NET WebAPI

ASP.NET MVC

Authentication Tokens

OAuth

Certificates

Caching

Distributed Caching

Pub/Sub

Message Brokers

Queues/Topics

SQL Server

Stored Procedures

SSIS

SSRS

AWS Lambda

CloudWatch

API Gateway

S3

EC2

SNS

SQS

ELB

IAM

Authorization

Access Control

SaaS architecture

UI frameworks

Business communication

Client-facing

Stakeholder coordination

Offshore teams

Tools

ASP.NET WebAPI

ASP.NET MVC

OAuth

JWT tokens

Caching technologies

Pub/Sub messaging

AWS services

Cloud services tooling

Job description

ETHEREUM TECHNOLOGIES LLC is seeking a skilled .NET developer with deep expertise in C# and multithreading to design and implement RESTful web services and microservices. The role requires strong security practices, caching strategies, and integration with AWS services such as Lambda, API Gateway and S3.

Experience coordinating with offshore teams and engaging with stakeholders is valued. The ideal candidate will demonstrate proficiency in SQL Server, SSIS/SSRS, and patterns for scalable SaaS