Sr. Net Engineer

MACHINE LEARNING TECHNOLOGIES LLC; Wilmington (DE); On-site; USD 130,000 - 185,000; Full time

Job summary

MACHINE LEARNING TECHNOLOGIES LLC in Wilmington, DE seeks a Sr. Net Engineer to design, develop, and maintain scalable .NET Core applications. You will build modern web UIs with Blazor, leverage AI-assisted tools to boost quality and efficiency, and optimize data models and serverless solutions with Azure Functions.

The role requires strong OOP, SQL Server proficiency, and experience in Agile environments. Join a collaborative team delivering AI-enabled software and resilient architectures.

Qualifications

• Strong grounding in OOP and scalable, maintainable code.
• Experience with SQL Server, data modeling and migrations.
• Proficiency in C#/.NET Core and modern frontend frameworks.
• Hands-on with Azure Functions and serverless patterns.
• Experience in Agile/Scrum environments.
• Familiarity with AI-assisted tooling and SDLC enhancements.

Responsibilities

• Design, develop, and maintain scalable .NET Core applications.
• Build web UI using Blazor Server/WebAssembly or similar.
• Leverage AI-assisted tools to improve code quality and velocity.
• Model data with EF Core and optimize SQL Server performance.
• Create serverless solutions with Azure Functions.
• Implement responsive UI with Bootstrap and modern frameworks.
• Participate in sprint planning, reviews, CI/CD, and testing.
• Collaborate with cross-functional teams and drive improvements.

Skills

C#

.NET Core

SQL Server

Entity Framework Core

Blazor

JavaScript/TypeScript

Azure Functions

AI‑assisted development

Playwright

CI/CD

Git

Education

Bachelor's or Master’s degree in Computer Science or related field

Tools

Docker

Kubernetes

GitHub Copilot

MediatR

Azure

Job description

Job Overview

• Job ID: J53371
• Job Title: Sr. Net Engineer
• Location: Wilmington, DE
• Duration: 24 Months + Extension
• Domain Exposure: Utilities/ Energy
• Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, L2-EAD, GC-EAD
• Client: To Be Discussed Later
• Employment Type: W-2, 1099, C2C

Some of the things you’ll be doing:

• Design, develop, and maintain scalable, modular applications using C# and .NET Core.
• Build and enhance modern web applications using Blazor Server, Blazor WebAssembly, or similar front‑end frameworks.
• Leverage AI‑assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code) to improve code quality, testing, refactoring, and development efficiency.
• Design and optimize data models, database schemas, and application performance using Entity Framework Core and SQL Server.
• Develop and maintain serverless solutions using Azure Functions or comparable technologies.
• Create responsive and user-friendly interfaces using Bootstrap or similar CSS frameworks.
• Translate business requirements into scalable, maintainable technical solutions within Agile development teams.
• Design, build, and support AI‑enabled applications, agents, and intelligent workflows.
• Evaluate, implement, and optimize AI‑augmented software development lifecycle (SDLC) practices.
• Develop and maintain automated testing solutions for UI, API, and database validation using Playwright and related technologies.
• Participate in sprint planning, code reviews, testing, CI/CD processes, and collaborative software delivery activities.
• Troubleshoot application, performance, and testing issues, including test reliability and automation framework improvements.
• Collaborate with cross‑functional teams to deliver high‑quality software and drive continuous improvement initiatives.

What technical skills, experience and qualifications do you need?

Core Development & SDLC

• Strong grounding in OOP principles and developing high‑quality, maintainable, scalable code Strong understanding of data modeling, migrations, LINQ, and performance optimization with Entity Framework Core
• Proficiency in SQL Server, including scripting, execution‑plan analysis, indexing, and query tuning
• Experience building scalable, modular applications with C# and .NET Core
• Proficiency in at least one modern front‑end framework for building responsive, interactive web applications (e.g., Blazor, React, Angular, or Vue)
• Proficiency with JavaScript and/or TypeScript for modern web application development
• Practical use of AI‑assisted development tools such as GitHub Copilot, Cursor, or Claude Code for code generation, refactoring, testing, and review
• Hands‑on experience with Azure Functions or comparable serverless technologies
• Proficiency in responsive UI development using Bootstrap or similar CSS frameworks
• Familiarity with Git, CI/CD pipelines, and collaborative development workflows
• Experience working in Agile/Scrum environments and delivering moderate‑to‑high‑complexity work within sprint cycles
• Preferred: familiarity with MediatR, Clean Architecture, Fluxor (or similar state‑management libraries), and resilience patterns such as Polly
• Preferred: experience with containers and orchestration technologies such as Docker and Kubernetes

AI & Intelligent Systems

• Experience with LLM architecture, prompt engineering, RAG, semantic search, vector databases, and agentic AI patterns
• Hands‑on experience building AI agents or AI‑enabled workflows for development, QA, performance testing, or security automation
• Strong knowledge of Azure AI Foundry, Azure OpenAI Service, and modern AI/ML frameworks
• Ability to design and optimize AI‑augmented SDLC workflows with measurable efficiency gains
• Ability to build and incorporate AI‑enabled, streamlined platform workflows
• Familiarity with AI‑assisted documentation practices and the ability to evaluate AI-generated output, including awareness of model limitations and risks

Test Automation & Quality Engineering

• Experience with test parallelization, test‑data management, and flaky‑test triage
• Preferred: proficiency with Playwright for UI, API, and database testing, including mocking
• Preferred: experience with performance‑testing tools such as Artillery, JMeter, K6, or Locust
• Preferred: experience in a risk‑based, automation‑first engineering environment

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.