Senior Software Engineer

Cleisson de Oliveira Moura

Senior Software Engineer | Node.js, Python & AWS Specialist | Scalable Systems | Kubernetes | System Design | Building AI-Powered Products

Cleisson de Oliveira Moura

About

Senior Software Engineer specializing in backend development, cloud infrastructure, and scalable systems.

I work on designing and building production software using Node.js, Python, AWS, Kubernetes, and modern cloud-native technologies.

My experience includes designing scalable backend systems, building cloud infrastructure, developing APIs and distributed systems, and contributing to architecture decisions in startup and international environments.

I am passionate about system design, performance, and building reliable software. Outside of work, I explore new technologies and build personal projects.

Focus Areas

Backend EngineeringCloud InfrastructureDistributed SystemsSystem DesignScalability & PerformanceAWSKubernetesNode.jsPythonAI-powered products

Experience

  1. Productera LLC

    Full-time | United States - Remote

    Senior Software Engineer - Encore Project

    Jul 2024 - Present

    • Migrated a Django monolith to microservices using Kubernetes (EKS) and Python, improving scalability and deployment reliability.
    • Designed cloud-native services leveraging AWS (RDS, Bedrock, SSM, SQS, EventBridge, EKS).
    • Migrated infrastructure from Terraform and Helm to AWS CDK, standardizing infrastructure as code.
    • Built and maintained CI/CD pipelines with Octopus Deploy, Kubernetes manifests, and shell automation.
    • Architected event-driven systems using SQS and SNS, background workers, and Redis for caching and distributed processing.
    • Developed AI-powered features including audio transcription, content highlighting, and data transformation.
    • Integrated LLM providers such as OpenAI, Perplexity, and Anthropic (via Bedrock) for analysis, summarization, and automation.
    • Designed scalable architectures, defined service boundaries, and led implementation planning.
    • Collaborated on user-focused features, ensuring performance, compliance, and reliability in production environments.

    Software Engineer - ThirdEdition Project

    May 2024 - Jul 2024 (2 months)

    • This project provided invaluable experience in technology decision-making, comprehensive system infrastructure planning, and front-end development.
    • Planned and structured the system infrastructure using AWS services.
    • Employed Terraform to manage and control AWS infrastructure development.
    • Developed the entire front-end structure and made all technology decisions.
    • Contributed to backend development.
  2. MeMima.com.br

    Full-time | Brazil - Remote

    Software Engineer

    Jul 2023 - Feb 2025 (1 year and 8 months)

    • This early-stage startup experience taught me how to launch a product and drive adoption.
    • Reached over 2,000 active users within a few months.
    • Introduced innovative features to ensure continuous product development.
    • Led strategic planning and collaborative project ideation.
    • Integrated payment gateways and chat functionalities.
    • Improved user flow and recommendations using graph databases.
    • Delivered a robust and scalable cloud infrastructure on AWS.
    • Leveraged AWS AI services for photo processing workflows including age verification and facial recognition.
  3. Avanti E-commerce & Digital Marketing

    Full-time | Florianopolis, Santa Catarina, Brazil

    Software Engineer (Remote)

    Feb 2024 - May 2024 (3 months)

    • Planned and developed an e-commerce mobile application built with React Native and Expo.

    Software Engineer (Remote)

    Jan 2023 - Jul 2023 (6 months)

    • Successfully developed and deployed mobile applications for major brands.
    • Developed and maintained software for 150+ users, including applications for GOL, Kopenhagen, and Intelbras on App Store and Play Store.
    • Built and maintained APIs with Django and Django REST Framework using PostgreSQL and Heroku.
    • Integrated Firebase Analytics, VTEX Orders, WordPress, and RD Station.
    • Created a notification system with AWS SNS and SES, Celery, and Firebase Cloud Messaging.

    Intern Software Engineer (On-site)

    Aug 2022 - Jan 2023 (6 months)

    • Joined the research, development, and innovation team.
    • Worked with the VTEX framework for e-commerce development.
    • Developed a mobile application from scratch.