Role Description We are looking for a Back-End / Platform Software Engineer to join our growing engineering team. In this mid-level role, you will transition from executing defined tasks to taking ownership of feature components and service reliability. You will work closely with senior engineers and clients to build and scale robust services using Go (GoLang) and GraphQL, while developing a strong Site Reliability Engineering (SRE) mindset to maintain system health and performance. - Feature Development: Develop and maintain high-performance backend services and APIs primarily using GoLang and GraphQL. - Performance Optimization: Implement and refine low-latency coding practices to ensure high-speed data processing and minimal response times. - Cloud Integration: Deploy and manage services within AWS, utilizing Lambda, Fargate, and DynamoDB. - Production Support: Participate in the full software development lifecycle, including on-call rotations and monitoring system performance (latency, availability). - CI/CD & Automation: Support and improve our Jenkins pipelines and automated deployment processes. - Collaborative Engineering: Work in a polyglot environment where Java is relevant, assisting with service integrations and code reviews. - Problem Solving: Identify and resolve technical debt and performance bottlenecks within the platform. Qualifications - Technical Proficiency: 2+ years of professional software development experience, with a strong focus on GoLang. Experience with Java is also highly relevant. - Latency-Critical Engineering: Proven ability to write efficient, concurrent code and tune applications for low-latency requirements. - API Experience: Practical experience building and consuming GraphQL APIs. - AWS Foundations: Hands-on experience with AWS services, specifically: - Compute: Implementing serverless functions (Lambda) and containerized apps (Fargate). - Database: Working with DynamoDB (basic schema design and querying). - DevOps Tools: Familiarity with Jenkins for CI/CD and a "you build it, you run it" approach to software. - SRE Awareness: Understanding of core SRE principles, such as SLIs/SLOs and observability. Preferred Skills - AWS Certification: Holding or working toward an AWS Associate-level certification. - Industry Context: Experience or interest in working with payment networks like Visa, Mastercard, and American Express. - Hands-on AWS: Direct experience configuring cloud resources beyond just deploying code.

• Enthusiastic mentor for a culture of quality and attention to detail • Strategic perspective in software development (including automation) • Strong written and verbal communication • Participation in team/squad ceremonies • Prepare and execute system deployments • Monitor, delegate, and resolve systemic incidents in the production environment • Work with the development team to identify opportunities for process improvement • Refactor system functionalities based on technical debt and performance improvements • Maintenance of legacy systems

• Design, develop, and deliver high-quality software iteratively and incrementally. • Take ownership of key components and services—from hands-on coding to deployment and monitoring. • Participate in technical design discussions and contribute architectural insights, working with senior leaders to shape solutions. • Ensure software follows modern engineering practices, including clean code, testing, automation, and cloud-native patterns. • Support continuous improvement in code quality, reliability, performance, and developer experience. • Translate business requirements into clear technical tasks and help validate assumptions and approaches. • Build and enhance distributed, event-driven, and cloud-native solutions in AWS. • Apply cloud best practices—security, cost awareness, performance, and operational efficiency—under guidance of senior engineers. • Contribute to observability through metrics, logging, tracing, dashboards, and alerts. • Assist in performance tuning, resiliency improvements, and troubleshooting production issues to ensure system stability. • Mentor and support junior engineers through pairing, code reviews, and knowledge sharing. • Collaborate effectively with Product, Architecture, InfoSec, and DevOps to deliver well-aligned solutions. • Contribute to a culture of learning, curiosity, and continuous improvement within the engineering team. • Take ownership of core components or services. • Deliver high-quality, production-ready code and contribute meaningfully to team goals. • Build strong working relationships within the engineering and product teams. • Lead development of one or more important services with increasing autonomy. • Help improve system performance, scalability, and reliability. • Support and elevate engineering practices through mentorship, reviews, and process improvements.

• Projetar, desenvolver e implementar aplicativos baseados em Java/Kotlin, Mobile IOS, garantindo alto desempenho, segurança e escalabilidade; • Participar de reuniões de alinhamento com cliente e time para entender os requisitos das aplicações; • Configuração do ambiente Cloud AWS; • Realização de testes unitários e de integração; • Documentar o código desenvolvido, incluindo descrições de funcionalidades, padrões de codificação e instruções de uso; • Responsável pelo desenvolvimento da solução, desde modelagem de banco de dados, até produção, acompanhamento e melhorias da solução.