Full Stack Application Developer (APIs)

About the role

Flex is seeking a Full Stack Application Developer to join its IT team in Guadalajara. You will be responsible for designing, building, and maintaining web applications that automate business processes and integrate with internal services.

Key responsibilities

• Design, develop, and maintain web applications using Visual.NET, C# and JSON.
• Create and optimise SQL Server queries, stored procedures and database objects.
• Collaborate with design, product and QA teams to improve user experience.
• Integrate external services and RESTful APIs into applications.
• Perform cybersecurity updates aligned with organisational needs.
• Troubleshoot technical issues and enhance application performance.
• Follow best development practices, security standards and version‑control using Git.

Required profile

• Minimum 2 years of professional development experience.
• Strong knowledge of Visual.NET and C#.
• Proven experience with RESTful APIs.
• Robust experience with SQL Server (stored procedures, query optimisation).
• Intermediate English proficiency.
• Familiarity with Scrum and reporting tools (Tableau, Power BI) is a plus.

Required skills

• Visual.NET
• C#
• JSON
• SQL Server
• Stored procedures
• Query optimisation
• RESTful APIs
• Git
• Tableau (optional)
• Power BI (optional)

What we offer

• Competitive salary
• Life and medical insurance
• Christmas bonus above legal minimum
• Food vouchers
• Savings fund