312 Best css Jobs in London (June 2026)

Product Designer

28 days ago

London

About the Role: Grade Level (for internal use): 03 We're hiring a Product Designer to lead the user experience of Spark Assist, an enterprise GenAI tool scaling across S&P Global. This is a strategic, hands-on role for a designer who has shipped real products inside a financial services company or fintech startup, and who is comfortable operating with autonomy at the intersection of AI, financial workflows, and rapid iteration. You'll partner directly with leadership and customers to shape Spark Assist's direction, run user research, and help scope the design roadmap and team growth. You'll set the bar for what an intuitive, trustworthy, and genuinely useful enterprise-grade AI tool looks like. About Kensho Kensho is S&P Global's hub for AI innovation and transformation, building intelligent products that empower financial professionals to work smarter, faster, and with deeper insight. Our teams design and deliver AI-driven tools that help analysts, researchers, and decision-makers turn complex information into clarity and action. We hire talented people and give them the autonomy and support to build remarkable technology and user experiences. We operate with startup instinct inside a global financial institution: short cycles, urgency, resourcefulness, and as little process as possible so good ideas can travel from concept to impact in days, not quarters. About Spark Assist Spark Assist is S&P Global's internal GenAI tool, a productivity layer used across the company to accelerate research, analysis, and day-to-day knowledge work for over 44,000 users. As the design lead for Spark Assist, you'll own the experience end-to-end: interaction patterns for conversational and agentic AI, surfacing trust and explainability, and designing for the specific demands of financial professionals working with sensitive, high-stakes information. What You'll Do • Lead design strategy and execution for Spark Assist across web and (where relevant) mobile surfaces, from early concepts through high-fidelity production., • Partner with the Heads of Product and Engineering as a strategic thought partner, shaping roadmap priorities, framing problems, and pushing back directly when the design case requires it., • Plan and run user research with internal analysts, researchers, and other Kensho users: discovery interviews, concept testing, and usability studies. Translate findings into design decisions and product direction., • Define interaction patterns specific to GenAI: streaming and loading states, confidence and uncertainty indicators, error handling, feedback loops, and progressive disclosure of complex outputs., • Prototype quickly. Use code, or vibe coding, to build interactive prototypes, test hypotheses, and prove intent more precisely than traditional product design workflows allow., • Scope, brief, and review work across design and development. Set quality bars and maintain coherence., • Contribute to and evolve our design system so Spark Assist and adjacent products stay consistent without becoming generic., • Champion transparency, explainability, and responsible AI in everything that ships, including accessibility and the trust signals financial users need to act on AI output. What You'll Need, • 4-7 years of product design experience, with at least part of that time inside a financial services company, fintech, or finance-adjacent startup. You understand how analysts, researchers, or other financial professionals actually work., • A portfolio showing strategic range, not just polished screens, but evidence of framing ambiguous problems, shaping product direction, and shipping at pace., • Demonstrated experience designing for AI or data-dense products. Familiarity with LLM-based interfaces (chat, agents, generative tools) and the design challenges they introduce., • Hands-on research skills. You've planned, run, or been a core part of user research studies., • Coding or vibe-coding fluency: comfortable in HTML/CSS, prototyping in Figma Make, Claude Code, or similar, enough to build interactive prototypes and collaborate substantively with data and engineering., • Strong financial industry context: familiarity with sell-side or buy-side workflows, market data, research distribution, or related domains is a meaningful plus., • Expert in Figma and modern design system practice., • Excellent communication. You can hold the room with the Head of Product, brief a contractor, give and receive direct feedback, and write a research readout that drives a decision., • Comfort with ambiguity and a strong bias toward shipping. You'd rather get a v1 in front of users this week than a v3 next quarter. What Gets Our Attention, • Experience designing GenAI and/or productivity tools at a financial institution or fintech., • A thoughtful point of view on UX patterns for LLMs and agentic systems., • Background in HCI, cognitive science, or a related discipline., • Track record of mentoring designers or managing external contractors., • Genuine curiosity about how AI is reshaping financial workflows. Where You'll Sit This role is based in our London office and partners closely with teams across Europe and South Asia. Expect a mix of in-office collaboration and async work across time zones. What's In It For You? Our Mission: Advancing Essential Intelligence. Our People: We're more than 35,000 strong worldwide-so we're able to understand nuances while having a broad perspective. Our team is driven by curiosity and a shared belief that Essential Intelligence can help build a more prosperous future for us all.From finding new ways to measure sustainability to analyzing energy transition across the supply chain to building workflow solutions that make it easy to tap into insight and apply it. We are changing the way people see things and empowering them to make an impact on the world we live in. We're committed to a more equitable future and to helping our customers find new, sustainable ways of doing business. Join us and help create the critical insights that truly make a difference. Our Values: Integrity, Discovery, Partnership Throughout our history, the world's leading organizations have relied on us for the Essential Intelligence they need to make confident decisions about the road ahead. We start with a foundation of integrity in all we do, bring a spirit of discovery to our work, and collaborate in close partnership with each other and our customers to achieve shared goals. Benefits: We take care of you, so you can take care of business. We care about our people. That's why we provide everything you-and your career-need to thrive at S&P Global. Our benefits include: • Health & Wellness: Health care coverage designed for the mind and body., • Flexible Downtime: Generous time off helps keep you energized for your time on., • Continuous Learning: Access a wealth of resources to grow your career and learn valuable new skills., • Invest in Your Future: Secure your financial future through competitive pay, retirement planning, a continuing education program with a company-matched student loan contribution, and financial wellness programs., • Family Friendly Perks: It's not just about you. S&P Global has perks for your partners and little ones, too, with some best-in class benefits for families., • Beyond the Basics: From retail discounts to referral incentive awards-small perks can make a big difference.For more information on benefits by country visit: https://spgbenefits.com/benefit-summaries Global Hiring and Opportunity at S&P Global: At S&P Global, we are committed to fostering a connected and engaged workplace where all individuals have access to opportunities based on their skills, experience, and contributions. Our hiring practices emphasize fairness, transparency, and merit, ensuring that we attract and retain top talent. By valuing different perspectives and promoting a culture of respect and collaboration, we drive innovation and power global markets. Recruitment Fraud Alert: If you receive an email from a spglobalind.com domain or any other regionally based domains, it is a scam and should be reported to reportfraud@spglobal.com . S&P Global never requires any candidate to pay money for job applications, interviews, offer letters, pre-employment training or for equipment/delivery of equipment. Stay informed and protect yourself from recruitment fraud by reviewing our guidelines, fraudulent domains, and how to report suspicious activity here . ----------------------------------------------------------- Equal Opportunity Employer S&P Global is an equal opportunity employer and all qualified candidates will receive consideration for employment without regard to race/ethnicity, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, marital status, military veteran status, unemployment status, or any other status protected by law. Only electronic job submissions will be considered for employment. If you need an accommodation during the application process due to a disability, please send an email to:" EEO.Compliance@spglobal.com "and your request will be forwarded to the appropriate person." US Candidates Only: Know Your Rights: Workplace discrimination is illegal ----------------------------------------------------------- 20 - Professional (EEO-2 Job Categories-United States of America), BSMGMT203 - Entry Professional (EEO Job Group)

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