Senior Backend Software Engineer | Achievements & Gamification

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Senior Backend Software Engineer | Achievements & Gamification in Brazil.

This role offers the opportunity to build and evolve backend systems that power engaging, real-time gamified experiences used by millions of users worldwide. You will contribute to transforming behavioral and usage data into meaningful narratives through rewards, achievements, and interactive product features. The environment is highly collaborative, data-driven, and strongly oriented toward ownership, quality, and innovation. You will work closely with product and engineering teams to design scalable architectures that support high-performance, event-driven systems and continuous experimentation. A strong focus is placed on leveraging AI as a productivity and engineering multiplier to improve delivery speed and technical excellence. This is a high-impact position where your work will directly influence user engagement, system reliability, and product evolution at scale.

• Design, develop, and maintain scalable backend services supporting gamification, achievements, and real-time user engagement features.
• Build and optimize event-driven architectures capable of handling large-scale data flows and user activity streams.
• Participate in architectural decisions, system design reviews, and definition of technical strategies for high-performance systems.
• Conduct thorough code reviews, ensuring high standards of code quality, maintainability, and performance.
• Collaborate with product managers and cross-functional teams to translate business goals into technical solutions.
• Drive improvements in system reliability, observability, and long-term technical health of backend services.
• Apply AI tools and agentic engineering practices to enhance productivity, automation, and engineering efficiency.
• Contribute to incident resolution, troubleshooting, and continuous improvement of production systems.
• Mentor junior engineers and promote engineering best practices such as TDD, code reviews, and pair programming.

Requirements:

• 5+ years of experience in backend software development, ideally in large-scale, distributed systems.
• Strong proficiency in backend programming languages such as Java, Go, Kotlin, or Scala.
• Solid experience with microservices architectures and event-driven systems.
• Strong knowledge of SQL and NoSQL databases (e.g., PostgreSQL, MySQL, DynamoDB, Redis).
• Experience with messaging systems such as Kafka, RabbitMQ, or SNS/SQS.
• Familiarity with cloud-based architectures, preferably AWS.
• Experience with CI/CD pipelines, monitoring, observability, and KPI tracking.
• Strong understanding of system design, scalability, and performance optimization.
• Experience with TDD, BDD, or similar engineering quality practices.
• Demonstrated ability to use AI tools in engineering workflows to improve productivity and delivery quality.
• Strong communication skills in English and Portuguese.
• Nice to have: experience with A/B testing, feature flags, and MVP-driven product development.
• Nice to have: experience mentoring engineers or leading technical initiatives.

Benefits:

• Remote-first position based in Brazil.
• Competitive compensation and benefits package.
• Access to comprehensive health, dental, and life insurance.
• Flexible work arrangements and schedule autonomy.
• Paid time off, parental leave, and additional wellness-focused days off.
• Wellness programs including fitness, mental health, and therapy support.
• Learning and development budget for continuous career growth.
• Strong engineering culture focused on ownership, collaboration, and innovation.
• Inclusive, diverse, and supportive work environment.