Senior Full Stack Developer, .NET

UOL

Senior Full Stack Developer at UOL, focusing on .NET applications and services for innovative digital solutions. Collaborating in agile teams to deliver high-quality web and desktop solutions.

Posted 6/4/2026full-timeRio de Janeiro • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies

ASP.NETJavaScript.NETSQL

About the role

Key responsibilities & impact

Develop and maintain systems using, predominantly, .NET technologies (Framework and .NET Core), with a focus on backend and services.
Work in development teams using Scrum or Kanban.
Evolve and maintain web applications, services, and integrations that support the operation of establishments and sales operations.
Work in agile development teams using Scrum or Kanban.
Actively participate in all phases of development: planning, technical definition, coding, testing, and production follow-up.
Design and evolve scalable, high-performance APIs, integrations, and web services.
Evaluate new technologies and frameworks for continuous improvement of products and processes.
Monitor applications, analyze logs, and resolve incidents and non-conformities.
Participate in on-call rotations and respond to support tickets.

Requirements

What you’ll need

Bachelor's degree in Computer Science, Engineering, Information Systems, or a related field.
Solid experience developing web applications and services (APIs, integrations, backend) — this is an essential requirement for the role.
Ability to also work on desktop applications, though with a strong emphasis and expertise in web solutions.
Knowledge of object-oriented programming, design patterns, and development best practices.
Experience with languages: VB.NET, C#, HTML, CSS, and JavaScript.
Hands-on experience with ASP.NET (MVC, Web API or similar).
Building and consuming REST APIs.
Experience with version control (Git).
Experience with .NET Framework and .NET Core.
Experience with SQL Server and T-SQL.

Benefits

Comp & perks

Meal and/or food allowance.
Commuter allowance (transportation voucher).
Private pension plan.
Health and dental insurance.
Life insurance.
Partnership with TotalPass.
ZenKlub for online therapy sessions.
UOL Care: psychological, nutritional, physiotherapy, and physical education guidance.
Extended maternity and paternity leave.
Childcare assistance.
Partnerships offering discounts with major institutions such as FIA, FAAP, PUCRS and UNINASSAU, plus a 50% discount on all courses available on the Portal Educação platform.
70% discount on the English 2.0 course on the Portal Educação platform and 50% discount on courses from EA Banking School.
No dress code: the important thing is to wear what makes you feel good.
#TáDeParabéns: day off on your birthday.
Baby gift: present for newborns.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

.NET.NET CoreVB.NETC#HTMLCSSJavaScriptASP.NETREST APIsSQL Server

Soft Skills

team collaborationagile developmentproblem-solvingcommunicationplanningtechnical definitioncodingtestingproduction follow-upincident resolution

Certifications

Bachelor's degree in Computer ScienceBachelor's degree in EngineeringBachelor's degree in Information Systems