React & Python & AI - Senior Full Stack Engineer Remote, Full-Time AS216

About Smart Working

At Smart Working , we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being.

Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally. Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world.

About the Role

As a Senior Full Stack Engineer , you will design and deliver AI-powered solutions that combine intuitive user interfaces, scalable backend systems, and advanced data workflows. Working closely with the Head of AI and a small engineering team, you will help prototype and build new applications that leverage large language models (LLMs) and modern AI-assisted development tools.

This role requires strong capabilities across frontend development, backend services, and data engineering, with a focus on delivering solutions that meet complex business requirements. You will work directly with stakeholders to translate ideas into production-ready systems, designing both the technical architecture and the user experience.

The position involves building modern web applications using React, JavaScript, and Python, developing ETL pipelines, integrating with third-party APIs, and deploying containerised applications using Docker. You will also utilise AI-assisted development tools such as Codex, Claude Code, or similar platforms to accelerate development and experimentation. The role offers an opportunity to work at the intersection of AI innovation, software engineering, and product development, contributing directly to the organisation’s AI initiatives.

Responsibilities

• Engage with business stakeholders to understand requirements and translate them into scalable technical solutions
• Design and build full-stack applications combining modern frontend technologies with Python-based backend services
• Develop intuitive user interfaces and high-quality user experiences using React, JavaScript, and HTML
• Prototype and deliver AI-powered applications leveraging large language models
• Use AI-assisted coding tools such as Claude Code, Codex, or similar technologies to accelerate development workflows
• Design and implement ETL pipelines and data processing workflows
• Build and maintain API integrations with third-party systems and services
• Contribute to solution architecture and technical design decisions across projects
• Implement secure deve