Senior Software Engineer AI in London

Are you passionate about building AI-driven software that transforms how professionals work? Join a dynamic and highly skilled team at Thomson Reuters, where we invest deeply in AI technologies and explore emerging fields with the backing of a global leader.

As a Senior Software Engineer – AI, you will play a vital role in developing intelligent systems that power the next generation of expert solutions across legal, tax, risk, and compliance domains. In this role, you will be an embedded AI expert on the Contract Express team, advancing our document automation platform with cutting-edge AI capabilities.

As a Senior Software Engineer – AI, you will:

• Lead the technical execution of AI initiatives for our document automation platform, including architecture decisions, roadmap alignment, and delivery oversight.
• Design, build, and deploy scalable AI/ML solutions leveraging emerging technologies and best practices in MLOps and LLMOps.
• Optimize AI performance through advanced techniques, including domain-specific adaptation and fine-tuning of third-party models and algorithms.
• Integrate AI components within a modern software stack (.NET, Azure, Angular) to deliver robust, secure, and performant features inside Contract Express.
• Design and implement continuous monitoring of application and user behavior to generate product insights, inform prioritization, and improve AI-driven experiences.
• Collaborate closely with product managers, engineers, designers, and subject-matter experts (legal, tax, risk, compliance) to translate business needs into effective AI solutions.
• Stay abreast of AI developments (with a focus on LLMs, retrieval-augmented generation, and prompt engineering) and promote the learning and adoption of relevant technologies within the team.
• Act as a thought leader by contributing to internal forums, representing the team in areas of AI expertise, mentoring other engineers, and influencing the broader technical direction.

You are a fit for the role if you have:

• Solid, hands-on experience building and deploying AI/ML solutions in production environments.
• Strong software engineering background, ideally with experience in: .NET (C#) for backend services and APIs, Azure cloud services (e.g., App Services, Functions, Storage, AI-related services), Frontend development with Angular or similar frameworks.
• Practical experience with MLOps / LLMOps practices (CI/CD for models, experiment tracking, monitoring, evaluation, and observability).
• Experience working with large language models (LLMs) and/or NLP techniques, including integration of third-party AI platforms and services.
• Proven ability to make sound architectural decisions and to balance innovation with maintainability, security, and performance.
• A collaborative mindset and strong communication skills, with the ability to partner effectively across disciplines and explain complex AI concepts to non-technical stakeholders.
• Curiosity and a continuous learning mindset, staying current with the rapidly evolving AI landscape and bringing new ideas back to the team.

If you're excited about shaping the future of AI-powered document automation and want to work at the intersection of advanced AI and mission-critical professional workflows, we'd love to hear from you.

Hybrid Work Model: We’ve adopted a flexible hybrid working environment (2-3 days a week in the office depending on the role) for our office-based roles while delivering a seamless experience that is digitally and physically connected.

Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.

Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow’s challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.

Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.

Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.

Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.

Making a Real-World Impact: We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.

Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them.

As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.

We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law.