Senior Full-Stack .NET & React

Santex; United States; Remote; USD 80,000 - 120,000; Full time

Job summary

Santex is seeking a Senior Full-Stack Developer to join our global team. You will work on C#/.NET and React-based applications, build RESTful services, and integrate various enterprise systems in a remote, collaborative setup.

Ideal candidates have 3-5 years of experience with the listed tech stack, Azure Data Factory, and experience delivering ETL pipelines and API-first solutions. This is a remote role supporting teams across the Americas.

Qualifications

• 3-5 years of experience with C#/.NET and frontend technologies such as React/TypeScript.
• Hands-on experience with Azure Data Factory.
• Experience developing system integrations and ETL solutions.
• Experience designing, building, and consuming REST APIs.
• Experience with SQL Server, Azure, and Azure DevOps.
• Strong software development practices and collaboration skills.
• Ability to work effectively in a remote environment.

Responsibilities

• Design, develop, test, and maintain web applications using C#/.NET and React.
• Build and support backend services, REST APIs, and integrations between business systems.
• Develop and maintain Azure Data Factory workflows for data movement.
• Create and optimize SQL Server databases, queries, and stored procedures.
• Collaborate with architects, developers, and stakeholders to deliver scalable solutions.
• Troubleshoot and resolve application, integration, and data issues.
• Participate in code reviews and follow development best practices.
• Support Azure-based deployments and Azure DevOps processes.

Skills

C#/.NET

React

TypeScript

REST APIs

Problem solving

Tools

Azure Data Factory

SQL Server

Azure DevOps

Job description

Santex is a global Certified B technology company as well as one of North America’s fastest-growing companies, according to the Inc. 5000. It's present in 18 countries and over 100 cities, and headquartered in Argentina with offices in the United States, Mexico, and Peru.

Its two service lines - AI Tech Consulting and AI-Optimized Engineering - help organizations comprehensively adopt technology, expand their capabilities, and improve business outcomes at scale.

The same approach defines its culture: Santex has 80.4% employee engagement (global average: 21%), 8% annual turnover (tech sector: 20-25%), 9,369 training hours invested in 2025 - more than double the global average -, and a 26.5% year-over-year reduction in carbon footprint, achieving carbon neutrality through offsetting.

Santex. A company with purpose and judgment. Yes, it's possible.

We are an Equal Opportunity Employer and are committed to fostering an inclusive and diverse workplace. We do not discriminate on the basis of race, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, disability, veteran status, genetic information, or any other characteristic protected by applicable law. All qualified applicants will receive consideration for employment without regard to any of these factors. We strongly encourage candidates from all backgrounds to apply.

Job Description: Senior Full-Stack Developer

The ideal candidate will have experience with C#/.NET development, API development, system integrations, SQL Server, and Azure technologies, along with strong problem-solving skills and the ability to work independently in a collaborative environment.

Responsibilities

• Design, develop, test, and maintain web applications using C#/.NET and React
• Build and support backend services, REST APIs, and integrations between business systems
• Develop and maintain Azure Data Factory workflows to extract, transform, and distribute data between enterprise systems
• Create and optimize SQL Server databases, queries, and stored procedures
• Collaborate with architects, developers, and business stakeholders to deliver scalable solutions
• Troubleshoot and resolve application, integration, and data-related issues
• Participate in code reviews and follow development best practices
• Support Azure-based deployments and Azure DevOps processes

Qualifications

• 3-5 years of experience developing applications using C#/.NET and modern frontend technologies such as React and TypeScript
• Hands-on experience with Azure Data Factory
• Experience developing system integrations and data movement/ETL solutions
• Experience designing, building, and consuming REST APIs
• Experience with SQL Server, Azure, and Azure DevOps
• Strong understanding of software development best practices
• Strong problem-solving, communication, and collaboration skills
• Ability to work effectively in a remote environment

Advanced English:

• Excellent verbal and written communication skills in English.

Required Location

• Argentina / Peru / Mexico (CDMX)