Software Developer (Full Stack) - Contract Only

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Software Developer (Full Stack) -- Contract Only based in Brazil.

We are seeking an experienced Full Stack Software Developer to build, enhance, and maintain scalable, secure, and reliable applications within a modern technology environment. In this hands-on development role, you will contribute to new feature development, legacy system modernization, and integrations that support a global technology platform. You will work across the frontend and backend, combining React, C#, .NET Core, and Python with cloud-based services and data systems. Your work will help improve application performance, software quality, and the reliability of critical digital solutions. Collaborating with cross-functional teams in an Agile environment, you will contribute to architecture decisions, automation, DevOps practices, and secure development standards. This remote contract opportunity is ideal for a developer who enjoys solving complex technical challenges and using modern engineering tools, including AI-assisted development, to deliver meaningful results.

Accountabilities

• Design, develop, test, and deploy application modules and services across the full technology stack.

• Translate product roadmap priorities into scalable, maintainable, and testable software solutions.

• Build responsive, user-friendly interfaces using React and modern JavaScript or TypeScript.

• Develop backend services, APIs, and application logic using C#, .NET Core, and Python.

• Implement and maintain event-driven and message-based integrations using technologies such as RabbitMQ.

• Connect frontend applications with backend services, databases, and third-party systems.

• Design data models, manage database migrations, and optimize queries for performance and reliability.

• Write and maintain automated unit and integration tests to support dependable releases.

• Troubleshoot defects, refactor existing code, reduce technical debt, and improve application performance.

• Implement and manage feature flags to support controlled, incremental software releases.

• Maintain current dependencies, frameworks, and development tools in line with technical and security standards.

• Use AI-assisted development tools, including code-generation assistants and agent-based workflows, to accelerate development and improve code quality.

• Build internal tools and automation scripts that increase engineering productivity.

• Contribute to AWS cloud infrastructure and services, as well as CI/CD pipelines and DevOps workflows.

• Apply security and compliance best practices across application code and infrastructure.

• Conduct thorough code reviews, promote consistent engineering standards, and share technical knowledge with colleagues.

• Create and maintain technical documentation, including READMEs, API documentation, and operational runbooks.

• Collaborate with internal teams to ensure software is maintainable, well-integrated, and aligned with broader technical objectives.

• Support other engineers through technical guidance, pair programming, and mob programming.

• Participate in daily stand-ups, sprint planning, retrospectives, and other activities within a hybrid Agile framework.

• Provide production support through a shared on-call rotation.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field.

• At least 5 years of hands-on full-stack software development experience, with strong expertise across frontend, backend, databases, and cloud technologies.

• Proficiency in React and modern JavaScript or TypeScript for building responsive, high-quality user interfaces.

• Strong backend development skills in C#, .NET Core, and Python.

• Experience working with relational and NoSQL databases, including MySQL, PostgreSQL, Redis, and MongoDB.

• Practical experience with AWS cloud services such as EC2, S3, RDS, Lambda, or comparable services.

• Demonstrated ability to design scalable, maintainable software architectures and build reliable applications.

• Experience using AI-powered development tools, such as GitHub Copilot, ChatGPT, or similar solutions, to generate, review, and optimize code.

• Strong understanding of mobile-first design principles and experience developing responsive or mobile-enabled applications for real-world use.

• Familiarity with DevOps practices, CI/CD pipeline design, and automated software delivery workflows.

• Solid understanding of Agile development methodologies and collaborative software delivery.

• Excellent analytical, debugging, and problem-solving skills, with the ability to resolve complex technical challenges.

• Clear communication and collaboration skills, including the ability to work effectively across technical and non-technical teams.

• Ability to work independently, manage priorities, and deliver high-quality work in a remote environment.

• Nice to have:

  • Experience integrating HubSpot CRM and Microsoft Dynamics Business Central ERP.

  • Familiarity with AWS Glue, SNS, SES, and CloudWatch.

  • Knowledge of Microsoft Remote Desktop Services.

  Benefits:

  • Remote work: The position is listed as fully remote, offering flexibility in how you organize your work.

  • Contract engagement: This opportunity is offered on a contractor basis.

  • Technical impact: Contribute to greenfield development, legacy modernization, cloud services, and mission-critical applications.

  • Modern engineering environment: Work with React, .NET Core, C#, Python, AWS, event-driven systems, and AI-assisted development tools.

  • Collaborative team: Partner with engineers and internal stakeholders through code reviews, technical discussions, and Agile delivery practices.

  • Professional development: Build experience across full-stack engineering, cloud infrastructure, automation, application security, and DevOps.

  • Salary and additional benefits: Compensation, healthcare, paid leave, and other benefits were not specified in the supplied job description and should be confirmed during the application process.