Full Stack Mid-Level Software Engineer

Join our growing digital team developing and maintaining bespoke, business-critical products for our customers and colleagues.

You will maintain and improve existing applications, develop new features and integrations, and contribute to our new native mobile app alongside specialist developers, taking increasing ownership after launch.

Working closely with our Product Owner, you will support a junior developer and collaborate with external specialists.

About Animal Trust

Animal Trust is a veterinary Community Interest Company providing affordable care to sick pets. Our free consultations and transparent pricing help remove barriers to care, with profits reinvested in our people and patients.

Responsibilities

• Maintain, monitor and troubleshoot live products, integrations and services.
• Develop features, APIs, integrations and data flows across front and back-end systems.
• Contribute to development and ongoing ownership of our iOS and Android app.
• Write maintainable, documented code and participate in reviews, testing and deployment.
• Support a junior developer and work with external development partners.
• Improve development workflows, monitoring, tooling and automation.
• Participate in an out-of-hours rota for critical incidents.

Required Skills & Experience

• 3–5 years' professional software engineering/full-stack experience.
• Strong JavaScript/TypeScript and React/Next.js experience.
• Back-end development using Node.js or similar.
• REST APIs, third-party integrations and SQL/NoSQL databases.
• Git, cloud platforms, Kubernetes and modern development workflows.
• Experience contributing to iOS/Android mobile applications.
• Pragmatic problem-solving and ownership of existing systems.
• Effective, responsible use of AI-assisted development tools.

Desirable

• Node.js/NestJS, PostgreSQL/Prisma, Redux Toolkit/RTK Query, native/cross-platform mobile, Docker, CI/CD, webhooks, automated testing and monitoring.
• Experience in an in-house SME team and working with external partners.
• Experience integrating AI features and developing data pipelines.
• Experience with headless CMS platforms such as Strapi or Directus.
• Experience with realtime integrations, payments or complex data synchronization

Benefits:

• 6 weeks holiday, including bank holidays 
• 52 Weeks sickness available 
• Employee assistance programme
• Enhanced maternity and paternity package
• Contributory pension scheme (4%)
• Store discounts through Perkbox
• Staff discount 20%
• E-Car Scheme
• Cycle to work scheme

Job particulars: 

40hr week

Monday-Friday with on call duties

Primary place of work Warrington Animal Trust 

Job ad last updated 30/8/26 

Closing date 28/9/26