Senior Full Stack Python React Developer

Posted 21 Days Ago
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Johannesburg, City of Johannesburg, Gauteng, ZAF
Hybrid
Senior level
Artificial Intelligence • Big Data • Software • Business Intelligence
Transforming businesses with innovative custom software development, AI and data engineering services.
The Role
Build and lead development of a production-grade Python Backend for Frontend service for a React Native application. Responsibilities include evaluating AI-generated code, implementing FastAPI services, integrating OAuth2/OIDC and Azure APIs, managing tokens, aggregating backend responses, enforcing authorization and resilience patterns, and implementing observability, security, CI/CD, and infrastructure improvements. The role also involves mentoring a mid-level developer and collaborating on API versioning and cloud architecture.
Summary Generated by Built In

DVT is one of the top software development and testing companies on the continent. Our vision is to be South Africa's favourite custom software solutions & services company, with a global footprint.
You will have the opportunity to work alongside some of the most established developers in the country with the latest technologies. DVT is committed to continuously training our staff and we are very proud of our culture of learning, from internal speaking and training to sponsoring a variety of technical events from DevConf to GDG.

DVT is partnering with an innovative international SaaS business that is transforming how independent food and beverage brands operate and grow online. We are seeking two Senior Full Stack Product Engineers to join a product-focused engineering team responsible for building and scaling a modern SaaS platform that serves businesses across Europe. This is an opportunity to work on a high-impact product, contribute to architectural decisions, and help shape the next generation of the platform as it evolves into a multi-tenant SaaS solution.

Software Development (70-80%)
  • Design, develop, and maintain backend services using Python and Django

  • Develop modern frontend applications using React and TypeScript

  • Build, enhance, and maintain RESTful APIs

  • Develop integrations with third-party platforms and services

  • Optimize platform performance, scalability, and reliability

  • Contribute to cloud infrastructure and deployment processes

  • Collaborate closely with Product, Design, and Operations teams

Product Engineering & Leadership (20-30%)
  • Contribute to architecture decisions and technical strategy

  • Design and scale multi-tenant SaaS solutions

  • Champion engineering best practices and code quality standards

  • Drive testing strategies including automated testing frameworks

  • Support CI/CD implementation and continuous improvement

  • Mentor and coach developers within the engineering team

  • Identify opportunities for platform innovation and optimization

Required Skills & ExperienceTechnical Skills
  • 8+ years software development experience

  • Strong commercial experience with Python and Django

  • Strong commercial experience with React and TypeScript

  • Solid understanding of modern JavaScript development practices

  • Experience building and scaling SaaS products

  • Extensive API development and integration experience

  • Strong PostgreSQL and relational database experience

  • Experience with ORM frameworks

  • Cloud platform experience (GCP and/or AWS)

  • Experience with Git and CI/CD pipelines

Engineering Practices
  • Test-Driven Development (TDD)

  • Automated Testing Frameworks

  • Continuous Integration & Continuous Deployment

  • Agile Software Development

  • Clean Architecture Principles

  • Code Reviews and Mentoring

Leadership Experience
  • Previous experience mentoring or leading developers

  • Ability to balance hands-on development with technical leadership

  • Strong communication and stakeholder collaboration skills

Advantageous Experience
  • Multi-tenant SaaS platforms

  • Shopify integrations

  • E-commerce platforms

  • Marketplace products

  • Startup or scale-up environments

  • Firebase

  • Google Analytics

  • High-growth product businesses

Why Join?
  • Join a rapidly growing international SaaS business

  • Work on a product with significant market impact

  • Influence architecture and technical direction

  • Collaborate with highly experienced engineers

  • Exposure to international markets and product development

  • Modern technology stack

  • Significant ownership and autonomy

Tech Stack

Backend

  • Python

  • Django

  • PostgreSQL

  • REST APIs

Frontend

  • React

  • TypeScript

  • Material UI

Cloud & DevOps

  • Google Cloud Platform (GCP)

  • AWS (future roadmap)

  • CI/CD Pipelines

  • Git

Who we are:

Skills Required

  • 5+ years of Python development experience
  • Strong asynchronous programming experience with asyncio
  • Production experience with FastAPI or a comparable asynchronous Python framework
  • Understanding of OAuth2/OIDC flows and token lifecycle management
  • Experience integrating with Azure APIM and Entra ID for service-to-service authentication
  • Knowledge of distributed-systems resilience patterns, including circuit breakers, retries, and bulkheads
  • Experience designing REST APIs for mobile consumption
  • Security experience with TLS enforcement, rate limiting, input validation, and data masking
  • Observability experience with structured logging, metrics, and distributed tracing
  • Ability to review and assess the quality of an existing codebase
  • Comfort working in a CI/CD environment such as GitHub Actions
  • Experience with AWS Cognito or custom OAuth2 provider integration
  • AWS container hosting experience with ECS, EKS, App Runner, or similar
  • Grafana stack experience, including Grafana Faro, Loki, or Tempo
  • Redis or ElastiCache caching experience
  • Terraform familiarity
  • Prior BFF or API Gateway implementation experience
  • Familiarity with React Native or mobile-first API design
  • WebSocket or SSE implementation experience
Am I A Good Fit?
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The Company
HQ: Johannesburg
689 Employees
Year Founded: 1999

What We Do

Custom Software, AI and Data Engineering services. Global Scale. Local Engagement. DVT is a proudly South African founded and operated technology services provider. As a BEE level 2 company, we are a committed local partner to South African clients, providing experienced software technology teams or staff to build, enhance or maintain your AI, data and software solutions.

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