Full Stack Developer - .Net / Azure / React

We are looking for someone who can work across the entire application stack while bringing a strong frontend perspective to the development of modern, scalable enterprise applications. The ideal candidate should be equally comfortable building sophisticated React user experiences and designing scalable .NET/Azure backend services.

This is an AI-first engineering role. We use AI as a core part of the software development lifecycle-not simply as an occasional productivity tool. We build, ship, test, and iterate quickly, measuring progress through working software and business value.

What You’ll Do

Full-Stack Development

• Design and develop enterprise-grade full-stack applications using React and .NET.
• Own features from technical design through development, testing, deployment, and production support.
• Troubleshoot and resolve issues across the entire application stack.
• Collaborate with architects, product owners, UI/UX designers, QA, and DevOps teams.
• Participate in code reviews, sprint planning, architecture discussions, and technical design sessions.

Frontend Development - Strong Emphasis

• Design, develop, and maintain modern, scalable React applications.
• Build sophisticated, reusable React components and frontend architectures.
• Develop applications using React, TypeScript/JavaScript, HTML5, and CSS.
• Apply modern frontend development practices to create maintainable, scalable applications.
• Implement effective state management, component architecture, form handling, validation, and API integration.
• Optimize frontend performance, responsiveness, usability, and reliability.
• Build responsive applications that work effectively across modern browsers and devices.
• Establish and maintain reusable frontend patterns, components, and development standards.
• Work closely with UI/UX designers and product stakeholders to translate designs and requirements into production-ready experiences.
• Help identify opportunities to improve frontend architecture, performance, maintainability, and overall user experience.

The ideal candidate should have significant hands-on React development experience and should view frontend engineering as a core area of expertise-not simply an extension of their backend responsibilities.

Backend & .NET Development

• Develop highly scalable backend services using C#, .NET 8+, and ASP.NET Core.
• Design, build, and maintain high-performance RESTful APIs.
• Develop secure, scalable backend architectures.
• Implement asynchronous and event-driven processing.
• Optimize application performance across APIs, databases, and cloud infrastructure.

Azure Cloud Development

• Architect scalable backend solutions using Azure services.
• Develop Azure Functions for event-driven and serverless workloads.
• Design and manage Azure API Management (APIM) implementations.
• Build high-performance data solutions using SQL Server and Azure Cosmos DB.
• Implement Azure Service Bus and asynchronous messaging.
• Apply Azure cloud architecture best practices.
• Ensure application security, scalability, monitoring, reliability, and performance.

AI-Powered Development

• Implement Azure AI Search to power intelligent application search and retrieval experiences.
• Develop AI-powered application capabilities using Azure OpenAI and Azure AI Foundry.
• Work with AI-powered search, retrieval, and RAG-based solutions.
• Use AI tools as a primary development accelerator.
• Incorporate AI into architecture, development, testing, refactoring, documentation, and troubleshooting.

What “AI-First” Means Here

AI is embedded into your daily engineering workflow.

You will:

• Use AI for architecture brainstorming and technical problem solving.
• Generate boilerplate and scaffolding rapidly.
• Use AI to refactor and optimize code.
• Build automated tests with AI assistance.
• Automate documentation and API specifications.
• Use AI to troubleshoot and debug applications.
• Continuously improve development velocity through AI.
• Use tools such as GitHub Copilot, Cursor AI, Claude Code, or similar technologies as part of your regular development workflow., * Collaborate with architects, product owners, UI/UX designers, QA, DevOps, and other engineering teams.
• Work directly with technical and business stakeholders when appropriate.
• Participate in architecture reviews and technical design discussions.
• Conduct code reviews and provide constructive technical feedback.
• Mentor engineers in full-stack, frontend, and AI-first development practices.
• Help establish engineering standards and cloud architecture best practices.
• Take ownership of features and technical solutions from design through deployment.
• Ensure solutions are secure, scalable, maintainable, and production-ready.

Testing & Quality

• Develop automated unit, integration, and end-to-end tests.
• Use testing frameworks such as xUnit, Jest, Playwright, or comparable tools.
• Incorporate AI-assisted testing into the development workflow.
• Ensure frontend and backend applications meet quality, performance, security, and reliability standards.
• Participate in troubleshooting and production support.

Professional Experience

• 7+ years of professional software development experience.
• Proven experience delivering production-ready enterprise applications.
• Strong analytical, architectural, troubleshooting, and problem-solving abilities.

Frontend - High Priority

• Strong hands-on expertise with React and modern frontend application development.
• Deep experience with React, JavaScript/TypeScript, HTML5, and CSS.
• Demonstrated experience building and maintaining complex, scalable React applications.
• Strong understanding of reusable component architecture and frontend development patterns.
• Experience with frontend state management, API integration, form handling, validation, and performance optimization.
• Ability to translate UI/UX designs and product requirements into high-quality production applications.
• Experience developing responsive and maintainable frontend experiences.
• Ability to contribute to frontend architecture and establish development best practices.

Candidates should demonstrate meaningful depth in frontend development. React should be a significant part of their hands-on development experience, rather than simply a technology they have used occasionally within a primarily backend-focused role.

Backend

• Expert-level experience with C# and .NET Core/.NET 8+.
• Strong experience with ASP.NET Core.
• Strong experience designing and developing REST APIs.
• Strong understanding of scalable backend architecture.

Azure

• Expert-level Azure Functions development.
• Expert-level Azure API Management (APIM).
• Strong understanding of Azure cloud architecture.
• Strong experience with Azure Cosmos DB.
• Experience with Azure Service Bus and asynchronous messaging.
• Experience with Azure DevOps and CI/CD pipelines.
• Experience with Git-based source control.

Data

• Expert-level SQL Server development, optimization, and performance tuning.
• Experience designing efficient SQL queries, stored procedures, indexing strategies, and data models.
• Experience with Azure Cosmos DB and cloud-native data solutions.

AI

• Strong experience implementing Azure AI Search.
• Experience building AI-powered applications.
• Experience using AI coding and development tools such as:
• GitHub Copilot
• Cursor AI
• Claude Code
• Similar AI development tools

Preferred Qualifications

• Experience with Azure OpenAI and Azure AI Foundry.
• Experience with RAG and AI-powered search/retrieval solutions.
• Experience with Snowflake or other cloud-native databases.
• Experience with distributed systems and microservices.
• Experience with xUnit, Jest, Playwright, or similar testing frameworks.
• Experience implementing secure authentication and role-based authorization.
• Experience working directly with business stakeholders.
• Experience establishing frontend development standards and reusable component libraries.
• Experience with frontend performance optimization.
• Experience working closely with UI/UX designers and product teams.
• Experience mentoring other developers in modern frontend and full-stack development practices., The ideal candidate demonstrates:
• Strong frontend engineering expertise
• Deep React knowledge and hands-on development experience
• Strong full-stack engineering capabilities
• Expert-level .NET/C# skills
• Strong Azure architecture knowledge
• Strong analytical and architectural thinking
• Expert-level troubleshooting and debugging
• Self-driven and highly accountable
• Passion for clean, maintainable, scalable software
• Strong mentoring and technical leadership abilities
• Excellent communication and collaboration skills
• Ability to work effectively with technical and business stakeholders
• Ability to thrive in a fast-paced, AI-first engineering environment, * Take ownership from design through deployment.
• Have a strong frontend mindset while being capable across the full stack.
• Move quickly and iterate often.
• Enjoy building modern React applications.
• Enjoy solving complex technical problems.
• Embrace AI as part of your daily engineering workflow.
• Prefer working software over lengthy documentation.
• Enjoy mentoring teammates and improving engineering practices.
• Are comfortable with ambiguity and changing priorities.
• Continuously look for ways to improve development velocity and software quality.

You will not thrive here if you:

• Have primarily backend experience with limited hands-on React development.
• Have only occasional or legacy experience with React.
• Prefer to focus exclusively on backend development.
• Resist AI-assisted development.
• Prefer rigid waterfall methodologies.
• Avoid collaboration or ownership.
• Need highly detailed requirements before getting started., * React / Front End: 7 years (Required)
• .Net / C# Back End: 7 years (Required)
• Azure Cloud: 5 years (Required)
• AI Tools: 1 year (Required)
• professional work - software development: 7 years (Required)

OtterSoft is seeking a Senior Full Stack Developer with deep expertise in .NET, Azure, React, and AI-powered application development. This role is ideal for a developer who combines strong backend engineering and Azure cloud expertise with deep, hands-on frontend development experience, particularly with React and modern frontend technologies.