Full-Stack Software Engineer (.NET + React)

Description

Our client is a rapidly growing, automation-led service provider specializing in IT, business process outsourcing (BPO), and consulting services. With a strong focus on digital transformation, cloud solutions, and AI-driven automation, they help businesses optimize operations and enhance customer experiences. Backed by a global workforce of over 32,000 employees, our client fosters a culture of innovation, collaboration, and continuous learning, making it an exciting environment for professionals looking to advance their careers.

Committed to excellence, our client serves 31 Fortune 500 companies across industries such as financial services, healthcare, and manufacturing. Their approach is driven by the Automate Everything, Cloudify Everything, and Transform Customer Experiences strategy, ensuring they stay ahead in an evolving digital landscape. 

As a company that values growth and professional development, our client offers global career opportunities, a dynamic work environment, and exposure to high-impact projects. With 54 offices worldwide and a presence in 39 delivery centers across 28 countries, employees benefit from an international network of expertise and innovation. Their commitment to a 'customer success, first and always' philosophy ensures a rewarding and forward-thinking workplace for driven professionals.

We are currently searching for a Full-Stack Software Engineer (.NET + React):

Responsibilities

• Design, implement, and maintain RESTful APIs and services using C#/.NET (preferably .NET 8), applying clean architecture and versioning best practices.
• Build responsive, accessible, component-based UIs with React, ensuring performance optimization and state management.
• Integrate with databases and external services, implementing input validation, error handling, and structured logging.
• Apply secure coding practices (authentication/authorization, OWASP Top 10 mitigations, secrets management).
• Containerize and deploy services (Docker, CI/CD), monitor system health, and optimize performance and costs.
• Participate in Agile ceremonies, perform code reviews, and maintain testing standards (unit, integration, E2E).
• Document APIs, architecture, and runbooks; clearly communicate technical topics to non-technical stakeholders.

Requirements

• 5+ years building scalable web applications with C#/.NET (Core/5+/6+/7+/8) and JavaScript/TypeScript.
• 3+ years with React (components, hooks, state management, testing).
• Experience designing RESTful APIs (resource modeling, versioning, error handling).
• Strong SQL knowledge and ORM experience; understanding of transactions and performance tuning.
• Solid testing culture and hands-on experience with CI/CD pipelines.
• Experience containerizing applications with Docker and deploying through pipelines.
• Strong knowledge of application security (OWASP, least-privilege principles).
• Excellent communication skills and ability to collaborate with cross-functional teams.

Languages

• Advanced Oral English.
• Native Spanish.

Note:

• Fully remote.

If you meet these qualifications and are pursuing new challenges, start your application on our website to join an award-winning employer. Explore all our job openings | Sequoia Career’s Page: https://www.sequoia-connect.com/careers/

Requirements

• 5+ years building scalable web applications with C#/.NET (Core/5+/6+/7+/8) and JavaScript/TypeScript.
• 3+ years with React (components, hooks, state management, testing).
• Experience designing RESTful APIs (resource modeling, versioning, error handling).
• Strong SQL knowledge and ORM experience; understanding of transactions and performance tuning.
• Solid testing culture and hands-on experience with CI/CD pipelines.
• Experience containerizing applications with Docker and deploying through pipelines.
• Strong knowledge of application security (OWASP, least-privilege principles).
• Excellent communication skills and ability to collaborate with cross-functional teams.