C# Developer - Mid-Level

WHY JOIN THE LINX TEAM? At Linx, we breathe and set the standard in retail, leading by example, inspiring, and developing our people's potential to consistently deliver more and better for our clients! For over 40 years, we have partnered with Brazil's top retailers, supported by a highly skilled team dedicated to helping them reach new heights! Our people e…

CI&T desenvolve soluções tecnológicas escaláveis, combinando conhecimento humano e Inteligência Artificial. Com mais de 8.000 profissionais e três décadas de atuação, a empresa mantém parcerias com mais de 1.000 clientes. Atenção: Profissionais que moram na Região Metropolitana de Campinas precisam comparecer presencialmente ao escritório, conforme as diretrizes internas. Sobre a vaga Buscamos um(a) Senior Fullstack Developer com experiência em .NET (C#) e Angular para atuar em projetos de um cliente estratégico. O papel envolve liderar o desenvolvimento e evolução de sistemas, tanto modernos quanto legados, sempre com foco em soluções escaláveis, desempenho e experiência do usuário. O uso de boas práticas de engenharia e ferramentas de IA generativa (GenAI) faz parte do dia a dia para acelerar entregas de valor. O que vai fazer Participar de processos de discovery, refinamento técnico e definição de arquitetura Desenvolver e aprimorar aplicações backend em .NET (C#) e frontend com Angular Manter, evoluir e modernizar sistemas legados Implementar arquiteturas escaláveis, como microserviços, monólitos modulares e Clean Architecture Criar e integrar APIs REST e aplicações frontend Garantir qualidade com testes automatizados (unitários, integração e frontend) Monitorar logs e métricas para observabilidade Analisar e resolver problemas em produção Otimizar performance, tanto no backend quanto no frontend Gerenciar build, versionamento e deploy das aplicações Requisitos técnicos Experiência sólida com .NET (C#) e desenvolvimento backend Conhecimento em Angular e desenvolvimento frontend moderno Proficiência em APIs REST e comunicação cliente-servidor (HTTP/HTTPS) Vivência com bancos de dados relacionais, como SQL Server ou PostgreSQL Compreensão de arquitetura de aplicações (camadas, microserviços, monólitos modulares) Diferenciais Conhecimento em Clean Architecture e separação de camadas Boas práticas de frontend, incluindo componentização e gerenciamento de estado Experiência com versionamento usando Git Integração entre frontend e backend (consumo de APIs, tratamento de erros) Uso de IA no dia a dia Ganhar produtividade no desenvolvimento Apoiar refatoração de código e arquitetura Gerar e aprimorar testes Auxiliar na análise de problemas complexos

About the Department:At BTG, our technology teams are at the forefront of transforming banking services. We invest in cutting-edge solutions to drive innovation.We operate in agile teams, utilizing DevOps practices with continuous integration, deployment automation, and automated testing. Our development efforts are focused on a multicloud architecture, ensuring that you will have close collaboration with the business and the freedom to propose and implement new ideas and solutions. We encourage research and experimentation with new languages, development patterns, and methodologies.Your Daily Responsibilities:Develop robust solutions on the .NET platform using C#.Implement appropriate design patterns and ensure clean, maintainable code with comprehensive test coverage.Apply strong skills in API design, RESTful services, and Microservices.Leverage distributed caching concepts (e.g., Redis) to enhance overall performance.Exhibit proficiency in asynchronous programming paradigms.Demonstrate expertise in service communication via Messaging (SNS, SQS, Kafka, etc.).

Why Join Zup?We are committed to fostering an environment that promotes exponential growth. More than just attractive words, this means providing you with every opportunity to take charge of your evolution, along with all the necessary support.At Zup, we believe that individual initiative must be paired with support to yield accelerated development. This means every Zupper has a personalized career development plan, close mentorship from the People team, and access to a proprietary platform that tracks and celebrates your progress.Why Do We Do This?We believe that only through an environment of exponential growth can we achieve our goals: leveraging technology to transform lives, empower talents that have been overlooked due to lack of access, and position underserved regions as hubs of high-quality technology.Also, we champion #Freedom! Zuppers can work from anywhere they choose, whether that's from home, in our offices, or in a hybrid model.Your Role HereDevelop, code, and implement systems;Create and develop APIs;Conduct debugging and testing;Participate in requirements gathering;Suggest enhancements to daily processes;Share knowledge and collaborate with other developers.

cpqd is a Brazilian technology organization specializing in information and communication technology for a range of sectors, including telecommunications, agribusiness, finance, utilities, manufacturing, urban development, retail, and defense and security services. The company focuses on developing local technology and delivering solutions tailored to the needs of these industries. The team values sustainable results and aims to support the growth of both individuals and society. cpqd’s culture is shaped by a set of core principles that influence daily work and collaboration. Role overview The Backend Developer II - Java will join the team in Campinas, São Paulo, Brasil. This role centers on building backend solutions using Java, contributing to projects that align with the company’s values and goals. Core values Collaboration Orientation towards the client Confidence Respect Innovation Adaptability Result The company encourages a work environment built on these principles, shaping both team interactions and the solutions delivered to clients.

About the Department:Our team is dedicated to developing and maintaining the post-trade equity platform at BTG Pactual. We create comprehensive solutions that integrate various areas of the bank, aiming to provide a robust technological framework for our internal and external clients while ensuring alignment with the clearinghouse and the equity market in Brazil. Your Daily Responsibilities:Engage actively in the design and structuring of solutions in collaboration with the business area.Have the autonomy to propose ideas that will impact the area’s results and the evolution of our platform.Develop systems using current technologies and have direct contact with a continuously evolving product.

About ciandt ciandt brings together human expertise and AI to deliver scalable technology solutions. With a team of more than 8,000 professionals worldwide, ciandt has partnered with over 1,000 clients during its 30 years in business. Artificial Intelligence plays a central role in the company’s approach and operations. Location Requirement Important: Candidates living in the Metropolitan Region of Campinas must work onsite at our Campinas office, following our current attendance policy. Role Overview We are seeking a Senior FullStack Developer with strong experience in .NET and Angular. The role focuses on building scalable, high-performance applications using modern architectures and the Azure ecosystem.

As a Backend Developer specializing in Artificial Intelligence, you will:Develop robust and efficient cloud-based APIs and integrate them into the bank's internal systems and platforms.Conduct automated testing, create test plans, and ensure application validation.Ensure high availability of our products.Collaborate with cross-functional teams to design and implement innovative solutions.Maintain and improve existing backend systems while adhering to best practices.

CI&T brings together human expertise and AI to deliver scalable technology solutions. With a global team of over 8,000 people and more than 1,000 client partnerships in the past three decades, the company places artificial intelligence at the center of its work. Location Note: Candidates living in the Metropolitan Region of Campinas must work onsite at the Campinas office, following current attendance policy. Role Overview This Senior Python Backend Developer position sits within CI&T’s Center of Excellence in Software Engineering (COE), focusing on integrating artificial intelligence throughout the Software Development Life Cycle (SDLC). The project aims to build accelerator agents for a banking client, streamlining both upstream and downstream processes by applying advanced AI orchestration technologies and modern development practices. What You Will Do Develop and maintain backend applications using Python as the main language. Create automation flows and intelligent agents with LangChain and LangGraph. Work with multidisciplinary teams to embed generative AI solutions into SDLC processes. Design and manage SQL and NoSQL databases, including MongoDB, with a focus on efficiency and security. Operate in hybrid cloud environments using Azure and AWS. Participate in code reviews and help define architectural best practices. Support the Developer Experience (DevEx) by building tools that improve engineering team productivity. Required Qualifications Senior-level experience as a backend developer on complex projects. Advanced Python skills. Hands-on experience with AI orchestration frameworks such as LangChain and LangGraph. Proficiency or working knowledge of other languages like Golang and .NET, especially for banking applications. Experience with MongoDB and SQL databases. Background in Azure and AWS cloud platforms. Thorough understanding of all phases of the software development life cycle. Preferred Qualifications Experience with AI-coding tools such as Cursor, Cline, Claude-code, and Antigravity. Understanding of RAG (Retrieval-Augmented Generation) architectures. Knowledge of caching and performance optimization using Redis. Familiarity with the GENIA tool. Basic experience with front-end development for component integration. Personal Competencies Strong technical communication skills.

Location: BrazilOnsite requirement: Candidates living in the Campinas Metropolitan Region must work in the Campinas office, following CI&T's attendance policy. About CI&T CI&T builds scalable technology solutions by combining human expertise with artificial intelligence. With a team of over 8,000 professionals worldwide, the company has partnered with more than 1,000 clients over 30 years of innovation. AI is integrated into daily work at CI&T. Role Overview CI&T is looking for a Senior Java Backend Developer to join the development team. The focus is on raising technical standards and driving ongoing innovation.

At CI&T, we are specialists in technological transformation, combining human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters globally, we have formed partnerships with more than 1,000 clients throughout our 30 years of history. Artificial Intelligence is our reality.Important: If you reside in the Campinas Metropolitan Area, your presence in our offices will be mandatory, in accordance with the current attendance policy.As a Senior Java Backend Developer, you will be tasked with elevating technical excellence for one of our key global clients, working on critical B2B systems with worldwide reach. You will serve as a technical reference, transforming the development culture within the team by promoting innovation and continuous growth.Key Responsibilities:- Develop highly complex systems in Java, applying advanced architectural patterns and best practices- Introduce technical innovations and new market standards that enhance project quality and efficiency- Lead the implementation of robust, scalable, and resilient microservices- Conduct technical code and architecture reviews, ensuring quality and consistency- Act as a technical mentor for the team, sharing knowledge and fostering new talent- Solve complex problems through deep root cause analysis in critical environments- Develop innovative solutions utilizing AI to optimize workflows and improve efficiency- Exceed client expectations while maintaining commitment to timelines and quality- Lead by example, fostering a culture of collaboration and continuous growthTechnical Requirements:- Proven experience in Java development- Advanced knowledge of Spring Framework and Spring Boot- Experience in microservices architecture and RESTful APIs- Deep understanding of Kubernetes and container orchestration- Experience with SQL and NoSQL databases (MongoDB, PostgreSQL)- Expertise in messaging systems (RabbitMQ)- Excellence in test automation (unit, integration, performance)- Knowledge of event-driven architectures and asynchronous processing- Familiarity with observability and monitoring tools- Experience leading technical teams and complex projects- Mastery of design patterns and SOLID principlesIntermediate to advanced English required.

Role overview Jobgether seeks a Senior Backend Developer with advanced Node.js skills to join its engineering team in Brazil. This role centers on building and maintaining backend systems that power digital financial products used by a global audience. The work involves supporting platforms at scale and ensuring reliable performance for users worldwide. What you will do Design and implement secure, scalable backend services with Node.js Shape and refine the core architecture for digital financial platforms Optimize API performance and strengthen infrastructure resilience Contribute to new product development and influence technical strategy Tackle complex challenges involving real-time systems, microservices, and distributed applications Collaborate with engineers across regions in a remote-first setting Take ownership of projects and help guide platform direction Requirements Extensive experience as a backend developer, with deep Node.js expertise Proven ability to build secure, highly available, and scalable systems Comfortable addressing technical problems in evolving, international contexts Strong communication skills and experience working in distributed teams Work culture Remote-first approach with flexibility and autonomy Engineering team collaborates across multiple regions Chance to contribute to projects that have a global impact

CI&T seeks a Mid-level Fullstack Developer (.NET & Angular) based in Brazil. This position supports a contract management project for a client in the financial sector. The team values proactive and resilient contributors who can handle daily challenges and help drive project outcomes. Note: Candidates living in the Metropolitan Region of Campinas must follow the company's current in-office attendance policy. Role overview This role centers on developing and maintaining contract management applications. The work involves collaborating with a team to deliver solutions that align with client requirements. Key responsibilities Develop applications using .NET and Angular Apply practical knowledge of AWS services Work within agile development frameworks Technologies used .NET Core / .NET: Build and maintain applications with recent .NET versions Angular: Create dynamic, responsive user interfaces AWS: Use services like RDS, DynamoDB, Lambda, and SQS RESTful APIs: Build and consume APIs Relational Databases: Work with database operations Git: Manage code using version control Microservices: Apply knowledge of microservices architecture

At CPQD, we are a 100% Brazilian organization dedicated to creating innovative technology solutions that drive progress in various sectors, including telecommunications, agribusiness, finance, utilities, industry, urban development, retail, and defense.We believe that through Our Way of Being and Doing, we can achieve sustainable results while contributing to the development of our team and society.Our core values define our essence: collaboration, customer orientation, trust, respect, innovation, adaptability, and results.Institutional Values - CO-CREATE:CollaborationOrientation to customerConfidenceRespectInnovationAdaptabilityResultsDo you identify with Our Way of Being and Doing? Join us as a Backend Developer III and help us CO-CREATE!

At Benfatto, we are seeking a talented and motivated Senior Full Stack .NET Angular Developer to join our dynamic remote team. Your primary responsibilities will include the development of scalable and distributed software solutions, ensuring optimal performance and security of applications, and promoting best practices in code maintainability and readability.You will actively share your insights and experiences with team members, contribute to improving application observability, and conduct thorough code reviews to maintain high quality standards.

Join Experian as a Mid-Level Backend Developer specializing in Java. In this role, you will be responsible for designing, developing, and maintaining robust backend systems that drive our innovative products. Collaborate with cross-functional teams to deliver high-quality software solutions that meet the needs of our clients.

Role overview Jobgether is seeking a Senior Backend Developer with strong Node.js skills for a remote position based in Brazil. This role centers on building secure, scalable, and real-time backend systems that support digital finance services used by customers around the world. What you will do Design and implement backend infrastructure with Node.js Develop and maintain mission-critical services, APIs, and financial products Improve system performance and ensure reliability Collaborate with engineers in various regions Explore new technologies and contribute to distributed systems Requirements Extensive experience in backend architecture and distributed systems Strong problem-solving skills for complex technical challenges Background in delivering backend products at scale Comfort working remotely and independently Work culture The team values autonomy, ownership, and innovation. Collaboration happens remotely, with encouragement for new ideas and a focus on delivering dependable solutions to a global customer base.

About the Role anyone-ai is hiring a Backend Developer - AI Trainer based in Brazil. This position focuses on building and improving backend systems that power AI models. Work closely with colleagues from different teams to strengthen AI training workflows and support projects in artificial intelligence. What You Will Do Develop and optimize backend infrastructure for AI model training Apply programming and analytical skills to improve system performance Collaborate with cross-functional teams to advance AI training processes Contribute to projects shaping the field of artificial intelligence Location Brazil

Join our innovative team at Bosch Group as a Senior C# Developer. You will play a crucial role in designing and developing high-quality software solutions that enhance our cutting-edge technology products. Your expertise will contribute to various projects, ensuring performance, scalability, and security.

Role overview ciandt is hiring a Senior Java Backend Developer based in Brazil. This role focuses on building backend systems that support efficiency and strong performance for software projects. What you will do Develop backend solutions using Java Contribute technical expertise to software projects Support the creation of reliable and efficient systems