In this role, the Staff Frontend Engineer will own checkout and payment flows, optimize user experiences, and collaborate with teams to improve performance and conversion rates.
Are you passionate about solving complex challenges in the fintech space? We’re looking for talented individuals to join our dynamic startup, backed by Sequoia Capital. We’re building the universal payment layer to unify all currencies—fiat and crypto—so businesses and consumers can transact seamlessly. If you're passionate about creating innovative solutions in a dynamic, fast-paced environment, we want to talk to you.
Are you passionate about solving complex challenges in the fintech space? We’re looking for a Staff Frontend Engineer (Payments & Checkout) to join our dynamic startup, backed by Sequoia Capital. We’re building the universal payment layer to unify all currencies - fiat and crypto - so businesses and consumers can transact seamlessly.
In this role, you’ll own and evolve our checkout and payment experience - the most critical surface of our product. You’ll work closely with product, design, growth, and backend teams to build fast, seamless, and high-converting payment flows. From reducing friction to improving authorization rates, your work will directly impact revenue and user experience. If you thrive on optimizing user journeys and love building performant, elegant frontend systems, we’d love to chat.
What You’ll Do:- Checkout ownership - Own the end-to-end frontend architecture for our checkout and payment flows across web platforms
- Conversion optimization - Improve checkout conversion rates through UX improvements, performance tuning, and data-driven experimentation
- Experimentation - Partner with product and growth to run A/B tests, analyze funnel performance, and ship iterative improvements quickly
- Payment UX - Build seamless flows for complex payment states including retries, failures, and authentication (3DS, etc.)
- Performance - Optimize frontend performance (Core Web Vitals, latency, rendering) to ensure fast and reliable checkout experiences
- Integration - Collaborate with backend and payments teams to integrate APIs, PSPs, and orchestration layers
- Resilience - Build robust UI systems that gracefully handle edge cases and ensure high reliability during transactions
- Frontend standards - Define and drive best practices for frontend architecture, scalability, and maintainability
- Mentorship - Act as a technical leader and mentor, raising the bar across the frontend team
- Culture carrier - Bring strong product thinking and a conversion-focused mindset into engineering decisions
- 7+ years of frontend engineering experience, ideally in fast-paced or startup environments
- Deep hands-on experience building and optimizing checkout or payment flows (must-have)
- Strong proficiency in modern frontend frameworks (React, Next.js, etc.)
- Experience improving conversion rates through experimentation, analytics, and UX iteration
- Strong understanding of frontend performance optimization and rendering strategies
- Familiarity with payments infrastructure (Stripe, Adyen, Braintree, tokenization, 3DS, etc.)
- Strong product intuition and ability to translate data into user experience improvements
- Excellent collaboration and communication skills across product, design, and growth teams
- Experience with global payments, multi-currency flows, or crypto is a bonus
- Fast-paced and dynamic – We’re a growing startup that moves quickly
- Tech-driven – We leverage technology to address our users’ biggest challenges
- Ownership and communication – We value people who take full ownership and communicate well across teams
- Continuous learning – You’ll work alongside industry experts and deepen your expertise in payments and high-performance frontend systems
- Competitive salary + equity plan
- 21 days PTO
- Benefits: annual medical allowance, productivity budget, gym membership & wellness subsidy
- Annual team retreat trip
- Be part of a team backed by Sequoia Capital with a healthy runway
- 7+ years of experience in frontend engineering, with a focus on high-impact user-facing systems
- Proficient in modern frontend frameworks and performance optimization techniques
- Experience with experimentation, analytics, and conversion-focused development
- Strong understanding of building reliable, scalable UI systems
- Bachelor's degree or equivalent practical experience
- We are unable to sponsor visas at this time.
- Preferred: Ability to work hybrid in NYC; open to remote candidates for the right individual
Apply now and help us build the future of payments at a global scale!
Apply now and help us build the future of payments at a global scale!
Similar Jobs
Cloud • Information Technology • Machine Learning
Lead and build a global deal desk to structure, approve, and orchestrate complex enterprise and strategic deals. Define operating model, playbooks, systems, and governance; partner with Legal, Revenue Accounting, Finance Pricing, and sales to ensure pricing quality, contract governance, accurate quoting/booking, fulfillment, and compliant revenue recognition.
Top Skills:
Ai/MlCloud InfrastructureCpqSaaS
Cloud • Information Technology • Machine Learning
Lead CoreWeave's Field Process & Automation Center of Excellence to design end-to-end revenue processes (account-to-pipeline, pipeline-to-forecast, quote-to-cash, deploy-to-consume). Embed AI and automation across the revenue tech stack, enforce data governance and SOX controls, run cross-functional integrations (NPI, M&A), and grow a high-performing team while partnering with RevOps, IT, and regional leaders.
Top Skills:
AIAnalyticsClariCpqCRMGongIntelligent AgentsOutreachRevenue IntelligenceSales EngagementSalesloft
Artificial Intelligence • Fintech • Insurance • Marketing Tech • Software • Analytics
Handle inbound and warm insurance leads, consult customers on coverage needs, match products to convert sales, complete paid licensing and training, work remote with set shift schedule, meet work-at-home technical requirements, and pursue sales targets with integrity and customer focus.
What you need to know about the NYC Tech Scene
As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.
Key Facts About NYC Tech
- Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
- Key Industries: Artificial intelligence, Fintech
- Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
- Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory
