Senior Software Engineer

Airfinity is an independent predictive analytics company serving the life-sciences sector. We combine continuously updated data, advanced analytics and scientific expertise to help pharmaceutical, global-health and biosecurity organisations anticipate change and make better decisions.

Our products provide intelligence and forecasting across areas including infectious disease, drug and vaccine demand, biosecurity, obesity and cardiometabolic conditions. Joining Airfinity offers the opportunity to work on technically challenging products that address important scientific and public-health questions.

About the role

We are looking for a Senior Software Engineer to join our backend engineering team.

This is a hands-on engineering role with significant scope to shape our systems, technical direction and ways of working. You will design, build and operate backend services and data pipelines while helping the wider team deliver reliable, maintainable software.

You will work closely with other engineers, product managers, data scientists, analysts and subject-matter experts. Alongside writing code, you will provide technical leadership through design decisions, code reviews, mentoring and pragmatic delivery planning.

Key responsibilities:

• Design, develop and enhance scalable backend services, data pipelines, REST APIs and supporting infrastructure.
• Build and maintain systems that collect, process and integrate data from APIs, databases, structured files and web sources.
• Develop and implement AI-powered capabilities, ensuring AI solutions and generated code are robust, accurate and production-ready.
• Shape technical architecture and contribute to product roadmaps, delivering high-quality, reliable software that meets business and customer needs.
• Maintain and improve production systems through monitoring, testing, code reviews and engineering best practices, while supporting continuous improvement.
• Collaborate closely with engineers, product managers, data scientists and analysts, mentoring colleagues and contributing to an agile, knowledge-sharing engineering culture.

Technology Stack:

• Python, PostgreSQL, SQLAlchemy, Django REST Framework, Selenium, Scrapy, Prefect, Pandas, Docker, AWS, OpenSearch, Git/GitHub, AI Model APIs and AI-assisted development tools (OpenAI Codex & Claude Code).

Requirements:

• Degree in Computer Science, Software Engineering or a related engineering discipline, with significant commercial experience developing and supporting backend applications.
• Strong technical expertise in Python, SQL, relational databases, data modelling, REST APIs and scalable, production-grade systems.
• Experience building data pipelines and integrating data from APIs, databases and web sources.
• Practical experience applying AI technologies within software development, including AI models and coding assistants, with sound judgement on their appropriate use.
• Strong understanding of software engineering best practices, including automated testing, code quality, Git-based workflows, code reviews and continuous integration.
• Excellent communication, problem-solving and mentoring skills, with the ability to contribute to system design, make sound technical decisions and thrive in a collaborative remote engineering team.

Our Commitment to Diversity and Inclusion

We are an Equal Opportunity Employer committed to fostering an inclusive and diverse culture. We do not discriminate on any basis and believe that a broad range of perspectives helps us innovate and reach our collective potential.