Johannesburg: Senior Python Developer (AWS/Azure) posted by Sabenza IT & Recruitment

We are seeking a highly experienced Senior Python Developer with strong cloud engineering expertise across AWS and/or Azure. The ideal candidate has 7+ years of hands-on Python development experience, deep understanding of cloud-native architectures, and a proven ability to design, build, and scale secure, reliable backend systems.

Key Responsibilities:

• Design, develop, and maintain scalable, high-performance backend applications using Python.
  
• Build RESTful APIs, microservices, automation scripts, and data processing pipelines.
  
• Implement unit tests, integration tests, and CI/CD automation.
  
• Optimise application performance, reliability, and maintainability.
  
• Architect, deploy, and manage cloud-native solutions on AWS and/or Azure.
  
• Work with cloud services such as: Lambda, API Gateway, EC2, S3, RDS, DynamoDB, Step Functions, ECS, CloudFormation, IAM
  
• Azure: Functions, App Services, Storage Accounts, Key Vault, Cosmos DB, AKS, ARM/Bicep, AAD
  
• Implement Infrastructure-as-Code (IaC) using Terraform, CloudFormation, ARM, or Bicep.
  
• Ensure high availability, scalability, and security of all cloud-hosted applications.
  
• Build and maintain CI/CD pipelines (GitHub Actions, GitLab CI, Azure DevOps, CodePipeline, etc.).
  
• Containerise applications using Docker; deploy and manage Kubernetes (EKS/AKS) environments.
  
• Monitor and troubleshoot production systems using cloud native tools (CloudWatch, Application Insights, etc.).
  
• Implement cloud and application security best practices (IAM, secrets management, network security).
  
• Ensure compliance with relevant standards and frameworks (ISO, SOC2, POPIA/GDPR where applicable).
  
• Act as a senior contributor, mentoring mid-level/junior developers.
  
• Participate in solution architecture, technical design sessions, and code reviews.
  
• Work closely with product owners, DevOps engineers, and other stakeholders to deliver high-quality solutions.
  

Requirements

• 7+ years professional Python development experience (required).
  
• Certifications: AWS Developer/Architect, Azure Developer/Architect.
  
• Strong experience with AWS and/or Azure cloud platforms.
  
• Proven experience designing and building REST APIs, microservices, and serverless components.
  
• Experience with Docker, Kubernetes (EKS/AKS), and cloud infrastructure.
  
• Strong skills in relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB, Cosmos DB).
  
• Solid understanding of software engineering best practices (testing, code reviews, DRY, SOLID).
  
• Experience with IaC: Terraform, CloudFormation, ARM, or Bicep.
  
• Experience with CI/CD automation.
  
• Experience with asynchronous frameworks (FastAPI, aiohttp, asyncio).
  
• Experience with messaging/streaming platforms (SQS, SNS, Kafka, EventHub).
  
• Knowledge of data engineering pipelines or ML workflow integration.