Senior Software Engineer - Python in Belfast

Reach beyond with Liberty IT; for this is where you’ll find the super challenges, where you’ll be given the scope and the support to go further, dig deeper and fly higher. We won’t stand over your shoulder. We won’t get in your way. We certainly won’t hold you back. You’ll bring the expertise. We’ll provide the platform to succeed.

Experience and skills we need:

• Experienced in object-oriented Python programming to build solutions at enterprise scale.
• API design and management experience using tools and services such as Grafana, FastAPI or RestFul API.
• Experience in optimising and managing databases such as SQL and MongoDB.
• A third level qualification in Software Engineering, Computer Science or STEM subject and 3 years’ software development experience in a commercial environment; or current and valid industry recognised certifications and 5 years’ software development experience in a commercial environment.
• Have worked with DevOps tools such as Jenkins, Bamboo, Git, or similar, for deployment purposes.
• Feature or function design and delivery as part of an agile software development team (Scrum, Kanban, XP, etc.).
• Have worked with Product Owners, customers, end-users, or stakeholders in the delivery of software, solutions, or products.

Experience and skills we’d love:

• Have worked with AWS cloud services and tools.
• Experience in working with containerized application management tools such as Kubernetes or Snowflake.
• Native solutions, ideally working with AWS.

What you’ll be doing:

• Be part of a team who are working to solve complex business problems by delivering high-quality software that provides an outstanding experience for our customers.
• With the support of more senior team members, contribute to the architecture or design in your area of work.
• Write clean code in line with the team’s set standards.
• Look for ways to improve your team’s coding standards.
• Own, scope and deliver well defined deliverables or stories.
• Communicate and update your progress regularly at stand-ups or similar agile events.
• Mentor and guide more junior team members to deliver well defined features, functions or components.
• Collaborate closely and cooperatively with your technical and non-technical teams to work towards the best solution that maximises value to the customer.
• Contribute to a culture of code quality and implement automated, unit and integration testing as part of the software development lifecycle.
• Apply good security processes such as threat modelling to the code you develop.
• Implement your team’s approach to delivering high quality, tested code.
• Maintain and improve CI/CD pipelines.
• Play a lead role in code reviews and actively review pull requests from other team members.
• Grow your knowledge of architecture, modern engineering principles and design patterns.
• Assess the business value of new technologies and technical solutions using a data-driven approach and implement them to the development life cycle.
• Supported by senior team members, seek opportunities to share and celebrate what you’ve learned through internal tech talks, blogging and external events.

What’s on offer:

• Feel safe and secure whatever life brings, with health insurance (including access to a digital doctor), life assurance and income protection.
• Enjoy both today and tomorrow with employee discount schemes, annual bonuses and a competitive pension.
• Protect your wellbeing with flexible working and a real work-life balance. Specifically, we have adopted a hybrid remote and in-office working culture, meaning you have ultimate flexibility in your work environment.
• Grow yourself, your career and reputation through continuous learning, promotion opportunities and our generous recognition programme.

About Us:

Liberty IT is the tech wing of Liberty Mutual Insurance. Bringing peace of mind to all aspects of customer’s lives, every day. We’re an ideas company. Always. We thrive on engineering excellence and surpass with technical mastery. We build beautifully architected cloud solutions and reliably run high stability systems. We work alongside the best in the business and learn from the finest minds.

Great Place to Work in UK & Ireland 2026. Best Workplaces for Women (UK) 2026. Top 5 Best Tech Workplace. Centre of Excellence in Wellbeing.

Fair employment and equal opportunities. Liberty IT is an equal opportunity employer, committed to inclusion and diversity. If you have a disability, accommodations are available on request when taking part in all aspects of the recruitment, assessment, and selection process.

If you’re ready to fly in your career, apply now.