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South Africa
Remote only
We are seeking a skilled Senior Full-Stack Software Engineer to help build and scale modern AI-powered web applications. You will play a critical role in enhancing functionality, improving performance, and ensuring scalability and security.
Design, build, and maintain several agent-based web applications built using Next.js, TypeScript, Tailwind CSS, and OpenAI’s APIs and Agents SDK.
Contribute to existing Python API and web applications using the Flask framework.
Develop and improve AI-powered user experiences, including conversational, voice, and streaming interfaces.
Modify and refine AI prompts to support new product features.
Integrate with external platforms and services such as OpenAI APIs, GraphQL backends, AWS Amplify, MongoDB, and learning management systems using the LTI standard.
Architect and implement scalable backend APIs, service layers, and tool execution workflows.
Own feature development from technical design through implementation, testing, deployment, and monitoring.
Implement automated tests for new functionality.
Improve application reliability, observability, and performance using tools such as Sentry, OpenTelemetry, and related monitoring systems.
Collaborate with product, design, and stakeholders to translate requirements into high-quality technical solutions.
Establish and uphold strong engineering standards for code quality, maintainability, testing, and documentation.
Debug complex production issues across frontend, backend, integrations, and realtime systems.
a Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent working experience.
5+ years experience as a software engineer.
2+ years experience using Next.js and TypeScript.
2+ years experience using Python in conjunction with a web framework such as Flask, Django, or FastAPI.
Demonstrated proficiency with AI-assisted software engineering tools, such as Claude Code, GitHub Copilot, or similar, to accelerate development, improve code quality, and support debugging, testing, and documentation workflows.
Demonstrated ability to work in a fast-paced, team-oriented environment.
Excellent problem-solving skills and attention to detail.
Strong verbal and written communication skills in English.
Experience building LLM-powered applications or conversational AI products.
Familiarity with OpenAI APIs or agent-style SDKs for chat, tool calling, or realtime interactions.
Experience with AI observability and tracing tools such as Langfuse or similar platforms.
Familiarity with GraphQL APIs and integrations with platforms such as AWS Amplify.
Experience with MongoDB or similar document-oriented databases.