Senior Product Designer

Methodfi; City of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading fintech startup in the City of London seeks a Senior Product Designer with 5+ years of experience to join their team. The role involves designing AI-first product experiences for billing and invoicing workflows. You will work closely with product managers and engineers to shape innovative solutions in a fast-paced environment. The ideal candidate embraces ambiguity and is excited about designing with AI tools. This position promises immediate product impact and a strong design culture.

Qualifications

• 5+ years of experience in product design, preferably for B2B products.
• Experience in finance or workflow-heavy domains is ideal.
• Comfortable in early-stage environments.

Responsibilities

• Design AI-first product experiences across billing and invoicing.
• Collaborate with PMs and engineers from concept to shipping.
• Rapidly prototype and test ideas with stakeholders.

Skills

Design AI-first product experiences

Partnering with PMs and engineers

Prototyping rapidly

Exploring new interaction models

Tools

Figma

AI tools

Job description

About Sequence

Backed by a16z and Salesforce Ventures, Sequence is reinventing the accounts receivable category, building a flexible toolkit to help B2B finance teams to scale their revenue collection infrastructure.

The team behind Sequence has decades of experience building and operating category-defining marketplace, machine learning, fintech, and enterprise software companies. We are no ordinary start-up; the maturity of our leadership and technology means we are operating at a lightning fast pace. This is a fantastic opportunity to be a part of the next wave of innovation for the CFO office, doing your best work with talented, ambitious and creative teammates.

Sequence is the ultimate billing and revenue stack for B2B companies. We help our customers design and iterate on their pricing and revenue flows, so they can stay completely focused on their mission without worrying about billing.

At the end of your career, we want you to look back at your time with Sequence and say it was the best job you ever had.

The role

We’re looking for a senior Product Designer (~5 YoE) to join Sequence and help shape the future of AI-powered finance automation. As one of our first designers, you’ll work closely with product, engineering, and founders to design intuitive, AI-native workflows for billing, invoicing, and receivables.

You’ll thrive here if you love operating in ambiguity, exploring new interaction models, and making AI agents feel both powerful and trustworthy.

You’ll be part of a small, high-leverage team where your design decisions have immediate product and customer impact.

What you’ll do

• Design AI-first product experiences across billing, invoicing, collections, and finance agent workflows
• Partner with PMs and engineers from discovery through shipping to bring new concepts to life
• Explore how agentic AI workflows should behave. What they do automatically, when they ask for input, how they explain their reasoning
• Move fluidly between broad concepts and tactical deliverables: from sketching a new finance copilot experience to refining a critical interaction for invoice approval
• Prototype rapidly, testing ideas with internal stakeholders and customers
• Contribute to design reviews and help build a strong design culture at Sequence

This may be a good fit if

• You’ve shipped B2B products, ideally in finance, b2b or workflow-heavy domains
• You’re comfortable in an early-stage environment and excited to help shape both product and process
• You’re interested in AI tools (such as Cursor, Midjourney, Figma Make, Claude Artifacts, etc.) and curious about designing with and for AI
• You embrace ambiguity and enjoy exploring entirely new interaction patterns rather than refining existing ones
• You prioritize speed and impact over weeks of analysis & research

This might not be a good fit if

• You want to spend most of your time running long-form user research studies or maintaining large design systems
• You prefer highly structured environments with detailed requirements
• You’re not interested in AI or unfamiliar with designing for AI-native workflows