Actuarial System Architect

Actuarial System Architect at Aviva

We’re looking for an Actuarial System Architect to join our Modelling & Systems team and play a key role in shaping the future of Aviva’s actuarial technology. You’ll lead the design and evolution of our modelling and systems landscape — ensuring it is robust, scalable and aligned to business and regulatory needs.

You’ll work closely with actuarial teams, finance, risk, technology partners and colleagues across the wider business to embed strong governance, deliver high‑quality modelling solutions and continuously improve how we operate.

Duties & Responsibilities

• Lead the design, development and long‑term architecture of actuarial modelling systems across IFRS, Solvency II and other reporting bases.
• Drive system enhancements and continuous improvements to increase automation, efficiency and scalability.
• Own and maintain end‑to‑end actuarial modelling processes, ensuring robust governance and alignment with group‑wide standards.
• Provide expert challenge and assurance on methodologies, model implementation and system controls.
• Oversee change control governance, ensuring strong documentation, testing and risk management.
• Coach and develop colleagues while collaborating with actuarial, finance, risk and external stakeholders to deliver high‑quality outcomes.

Skills & Experience

• Strong knowledge of Solvency II, IFRS and actuarial modelling practices.
• Technical experience with Prophet and proficiency in R, Python, SQL or similar tools used in modelling and systems integration.
• Strong ability to analyse complex quantitative and qualitative data, applying forecasting and machine‑learning techniques where relevant.
• Proven experience improving modelling processes, controls and operational efficiency.
• Excellent project and time‑management skills, comfortable leading technical initiatives and managing competing priorities.
• Clear communicator with strong influencing skills, able to simplify complexity and uphold professional standards aligned to IFoA guidance.

What Aviva Offers

Our purpose - with you today, for a better tomorrow – is a promise we make to our colleagues too. And one of the ways we live up to that promise is by investing in you. We have so much to offer when it comes to being an Aviva colleague.

• A competitive market leading salary depending on skills, experience, and qualifications
• Generous pension (employee contribution matching of up to 14% if you contribute 8%)
• Annual performance related bonus and pay review
• Holiday allowance of 29 days plus bank holidays, and the option to buy/sell up to 5 additional days
• Generous Health & dental insurance contributions after six months
• Aviva Matching Share Plan and Save As You Earn scheme and Approved Profit Share Scheme
• TaxSaver Travel Scheme
• Up to 40% discount for some Aviva products plus discounts for Friends and Family
• Professional qualification support and transparent career progression plans
• Brilliantly supportive policies including parental and carer’s leave
• Flexible benefits to suit you, including sustainability options such as cycle to work
• Make a difference, be part of our Aviva Communities and use your paid volunteering days to help others
• We take your wellbeing seriously with lots of support and tools.

Diversity & Inclusion

Aviva is for Everyone. Our diversity and inclusion policies and initiatives are shaping an environment where everyone feels welcome regardless of age, disability, race, ethnicity, gender, gender identity, religion, culture, sexual orientation, national origin, marital status, pregnancy, maternity or those with other caring responsibilities. Our approach helps to ensure that Aviva is a place which values difference and provides equal opportunities for all.

Work Arrangement

We flex locations, hours and working patterns to suit our customers, business, and you. Most of our people are smart working – spending at least 50% of their time in our offices every week - combining the benefits of flexibility, with time together with colleagues.

Key skills/competency

• Actuarial Modelling
• Solvency II
• IFRS Reporting
• Prophet Software
• R Programming
• Python Programming
• SQL
• System Architecture
• Governance & Controls
• Project Management