Senior Product Engineer (Retailer Experience & Growth, Fullstack, Backend or Frontend)

• Faire is helping independent retailers thrive in a world increasingly dominated by large chains and marketplaces. Every day, hundreds of thousands of retailers use Faire to discover unique products, connect with brands, and grow their businesses
• As a Senior Engineer on our Growth team, you’ll build products and experiments that directly influence how retailers discover, adopt, and engage with Faire
• Your work will sit at the intersection of product, engineering, data science, design, and marketing, giving you an unusual level of visibility into both customer outcomes and business impact
• Growth is one of Faire’s most important strategic areas. You’ll identify opportunities, develop hypotheses, launch experiments, and use data to determine what works
• Whether you’re improving onboarding, increasing engagement, driving retention, or helping retailers realize value faster, you’ll see the results of your work reflected in meaningful business metrics
• You’ll have significant ownership, move quickly from idea to launch, and help shape the future of one of Faire’s most important product areas
• Own high-impact initiatives that improve retailer acquisition, activation, engagement, and retention
• Design, build, and iterate on experiments that influence key business outcomes
• Partner closely with Product, Design, Data Science, Analytics, and Marketing to identify growth opportunities and execute on them
• Collaborate with Marketing to optimize campaigns, paid spend, and marketing tech
• Use data to understand customer behavior, evaluate experiment results, and guide future investments
• Build scalable systems and product experiences that support Faire’s continued growth
• Contribute to technical strategy while maintaining a high bar for engineering quality, performance, and reliability
• Within your first 6–12 months, you will:
• Launch and iterate on multiple growth experiments
• Become a trusted partner to product, design, and data science stakeholders
• Improve one or more key retailer growth metrics
• Lead a significant initiative from concept through launch and measurement
• Influence the roadmap and strategy for retailer growth at Faire
• Technologies we use & teach:
• Experience with similar technologies is welcome - you don’t need experience with our exact stack
• Frontend development (e.g., React, TypeScript/JavaScript, modern UI frameworks, performance optimization)
• Backend: Kotlin, Java, Guice, Jersey, Hibernate
• Datastores: MySQL, CockroachDB
• Infrastructure & Cloud: AWS (EC2, S3, RDS), Docker
• APIs & Data: HTTP, REST, JSON, Protocol Buffers
• Experimentation & Growth: Feature flagging systems, A/B testing frameworks, traffic ramping tools

Benefits

• Comprehensive healthcare: Including Health, Dental, Vision and Disability for all our locations.
• Time off: Paid time off, holidays and company-wide “Faire Fundays”.
• Parental leave: Generous parental and family leave, as well as fertility support benefits.
• Productivity support: Monthly stipends to help cover work from home connectivity needs.
• Annual learning grant: For personal and professional development, as well as unlimited access to training courses through LinkedIn Learning.
• Thoughtfully designed spaces: All of our offices have been designed with local in mind – from our architects to our coffee blends.
• Fitness and well-being benefits: Including monthly credit towards your wellness-related programmes.
• Mental health benefits: Including free access to Modern Health therapists and resources.
• Charitable matching: Faire will match up to £250 of your charity donations, every year.
• Career planning: Whether you want to grow as a leader, hone your craft or explore a new discipline, our career framework allows space for you to explore.- We have fullstack, backend and frontend open roles across product teams in Growth that are being hired through this job posting - so please apply if you are in either role
• 5+ years of professional software engineering experience
• Excellent problem-solving and collaboration skills
• We’re looking for engineers who are excited about building products that create measurable customer and business impact
• Comfort working in fast-moving, highly cross-functional environments
• This is an ideal role for engineers who enjoy combining technical excellence with product thinking
• Don’t meet every qualification? We know great candidates come from many different backgrounds and experiences. If you’re excited about the role, we’d encourage you to apply
• Strong experience building backend systems or modern frontend applications
• A track record of shipping customer-facing products and driving meaningful outcomes
• Curiosity about customer behavior, experimentation, and data-informed decision making
• Experience working with Marketing or Paid Spend Optimization
• Experience working on products at significant scale
• Experience designing and analyzing A/B tests
• Familiarity with product analytics and experimentation platforms
• Experience with growth, experimentation, marketplace, or consumer product teams