Job Description
Description
DVT is one of the top software development and testing companies on the continent. With our hybrid options, 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.
We are looking for experienced Python developers to join our engineering team and help us create dynamic software applications for our clients. In this role, you will be responsible for writing and testing scalable code, developing back-end components, and integrating user-facing elements in collaboration with front-end developers.
To be successful as a Python developer, you should possess in-depth knowledge of object-relational mapping, experience with server-side logic, and above-average knowledge of Python programming. Ultimately, a top-class Python developer is able to design highly responsive web-applications that perfectly meet the needs of the client.
Requirements
Full-Stack Developer
Build modern, AI-enabled platforms across frontend, backend, and intelligent systems
We’re looking for a strong Full-Stack Developer who thrives in complex, end-to-end environments, someone who can move seamlessly from crafting clean, scalable frontends to building high-performance backend services and integrating AI-powered capabilities into real-world applications. This is not a “stay in your lane” role. This is for someone who enjoys owning the full lifecycle, from UI to API to data layer to LLM workflows, and who can debug, build, and ship across the stack with confidence.
You’ll be working on modern platforms that combine React + Next.js frontend, Python/FastAPI backend services, containerized environments, and increasingly AI-driven features using LLMs and retrieval systems.
If you’re energized by building systems that go beyond CRUD, into automation, intelligence, and real-world problem solving, this role is for you.
What You’ll Do
Design and build scalable full-stack applications from frontend to backend
Develop modern frontend applications using React, Next.js , and TypeScript
Build and extend backend services using Python, FastAPI, and SQLAlchemy
Model and query data in PostgreSQL, with performance and scalability in mind
Implement caching, session, and fast-access patterns using Redis
Integrate and operationalize LLM/AI capabilities (OpenAI, Azure OpenAI)
Work with retrieval and search-based flows (RAG, fallback strategies, guardrails)
Debug and troubleshoot end-to-end system flows across UI, API, DB, and containerized services
Contribute to test automation across both frontend and backend
Collaborate on containerized environments using Docker and Docker Compose
Ensure security, reliability, and maintainability across all layers
Core Requirements
Frontend
Strong React fundamentals (components, hooks, lifecycle)
Experience with Next.js architecture and runtime behavior
Proficiency in TypeScript
State management using Redux Toolkit
Form handling and validation using react-hook-form + yup
UI styling with Bootstrap/Sass and component-based systems
Frontend testing using Vitest and Testing Library
Backend
Solid experience with Python service development
Strong FastAPI knowledge (routing, DI, validation)
Understanding of ASGI/Uvicorn runtime
Experience with SQLAlchemy ORM + PostgreSQL
Hands-on with Redis usage patterns
Knowledge of API security fundamentals ( JWT, hashing, secrets)
Testing experience using Pytest
AI / LLM
Experience integrating OpenAI APIs in Python
Understanding of LangChain basics (chains, tools, wrappers)
Exposure to RAG, search, and fallback strategies
Knowledge of prompt validation and guardrails
Familiarity with LLM observability (OpenTelemetry)
Platform & Data
Strong understanding of Docker and Dockerfiles (multi-stage builds)
Experience with Docker Compose orchestration
Understanding of service networking, ports, env variables, and health checks
Working knowledge of PostgreSQL 15 and Redis Stack
Basic understanding of HAProxy
Cloud & Integration
Experience with Azure OpenAI
Azure Blob Storage integration
Basic understanding of Azure AI Search
Familiarity with telemetry using Azure Monitor / OpenTelemetry
Required Local Tooling
Git
Node.js 22.x and npm 10.x
Python 3.10 with pip/venv (or conda)
Docker Desktop with Compose support
PowerShell
Delivery & Team Fit
Comfortable working across frontend, backend, data, and infrastructure
Able to operate in multi-repo environments
Strong debugging capability across distributed systems
Practical experience managing pyproject.toml and package.json
Writes clean, testable, maintainable code
Ownership mindset with strong problem-solving ability
Nice to Have
Cognito integration experience
Frontend or backend performance profiling
Production observability dashboards and alerting
Advanced secret management practices
