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Flex

HSA/FSA payments platform for health and wellness brands

San Francisco, CARemote1-50fintechSeries A
About

Flex provides infrastructure for businesses to accept HSA/FSA payments seamlessly, handling compliance, eligibility verification, and integrations like APIs and checkout flows. It serves health and wellness brands, unlocking $150B in pre-tax spending to boost revenue, AOV, and conversions. This matters as it simplifies access to health benefits, driving growth in the wellness sector.

Tech stack
ShopifywebhooksTypeScriptRedisRustReactPylonSQLTechnical Product SupportSalesforcePythonRAshbyClaudeGoogle CloudPostgreSQLSEOGoogle AnalyticsNetSuiteProduct Marketing
Perks & benefits
Health insuranceDental insuranceVision insurance401kUnlimited PTOEquityQuarterly offsites
Browse by role
Open roles ยท 25
Flex

Product Owner, Payments and Infrastructure

Own payments infrastructure and vendor strategy for a fintech building AI-native banking. Lead bank partner implementations, architect multi-provider payments stack, and drive MTL transition.

United StatesProduct ManagementRemote4+ YOEACHPayments
Flex

Product Owner, Accounting Stack

Own Flex's Accountants Stack: accounting integrations, expense management, bill pay, invoicing, AR/AP, and financial reporting for premium business owners and their accountants.

United StatesProduct ManagementRemote4+ YOEXeroAR/AP
Flex

Product Owner, Card Programs

Own Flex's card programs end-to-end, scaling from one major program to five-plus across credit, stablecoin, and rewards. Drive processor strategy, network relationships, and operational infrastructure to grow portfolio volume 20x+.

United StatesProduct ManagementRemote8+ YOECard issuingCard servicing
Flex

Financial Crime Analyst

Review transaction monitoring alerts, conduct KYC due diligence, and support AML/SAR efforts to protect a fintech platform from financial crime.

60k โ€“ 80kUnited StatesLegalRemote1+ YOEKYCCDD
Flex

Technical Recruiter

Own full-cycle technical recruiting for engineering, data, infrastructure and security roles while building hiring processes, rubrics, and infrastructure to scale high-quality technical hiring.

United StatesRecruitingRemote7+ YOEGemAshby
Flex

Manager, Sales Enablement

Build sales enablement programs from scratch for a growing GTM team, including onboarding, playbooks, coaching via Apollo, and product launch readiness. Requires 4-6 years experience, Salesforce proficiency, AI tool fluency, and high ownership in a high-growth fintech.

San Francisco, CA +2Sales EnablementRemote4+ YOELMSSQL
Flex

Business Development Representative (BDR) Manager

Leads a team of 7-9 BDRs as a player-coach, managing performance, ramping new hires, driving AE+BDR pod motions, and owning top-of-funnel pipeline in a fast-paced fintech startup. Requires prior BDR/SDR experience, leadership track record, and fintech background preferred.

San Francisco, CA +2Sales EnablementRemoteOrumApollo
Flex

Collections Risk Management Lead

Leads end-to-end collections risk management for Flex's credit card portfolio, optimizing delinquency treatments, vendor performance, and recovery strategies across consumer and SMB segments. Requires 7-15 years experience, SQL/Python proficiency, and deep knowledge of collections lifecycle and regulations.

150k โ€“ 250kUnited StatesBusiness OperationsRemote7+ YOERSQL
Flex

Portfolio Risk Analytics Lead

Leads end-to-end portfolio risk analytics for Flex's credit card book, covering acquisition to charge-off, building early warning systems, and conducting stress testing. Requires 7-15 years in credit card risk analytics, SQL/Python proficiency, and expertise in SMB credit dynamics.

150k โ€“ 250kUnited StatesData AnalyticsRemote7+ YOERSQL
Flex

Recruiting Lead

Leads full-cycle recruiting for GTM, operations, finance, and leadership roles at a scaling tech company. Builds scalable hiring infrastructure, owns ATS and processes, analyzes metrics, and leads TA team. Requires 10+ years experience with strong sourcing and process-building skills.

150k โ€“ 250kUnited StatesRecruitingRemote10+ YOEATSGem
Flex

People Ops Manager

Manages core people operations including performance reviews, employee lifecycle processes, compliance, and manager support in a high-growth startup. Requires 5-8+ years in people ops or HR with strong process-building skills.

United StatesPeople OpsRemote5+ YOEHRISPayroll
Flex

Senior Brand Designer

Senior Brand Designer builds and evolves brand identity across marketing channels including web, social, ads, and events. Requires 3+ years graphic design experience in B2B, expertise in Adobe Suite, Figma, AI tools, and video editing.

United StatesBrand DesignRemote3+ YOEFigmaAI Tools
Flex

Head of Growth Marketing

Lead growth marketing to scale demand generation, self-serve acquisition, and PLG for B2B SaaS. Requires 6+ years in growth/digital marketing, 3+ years managing teams, with expertise in SEO, paid channels, and unit economics.

275k โ€“ 450kUnited StatesGrowth MarketingRemote6+ YOESEOPLG
Flex

Senior EA

Acts as the CEO's operating system, owning time, priorities, information flow, and execution across business and personal domains to maximize leverage and reduce chaos. Requires 8+ years elite experience supporting founders/CEOs in high-growth environments.

130k โ€“ 250kMiami, FLBusiness OperationsOn-site8+ YOEDiscretionTriage Systems
Flex

Senior Account Executive (Miami)

Manages full sales pipeline for financial products targeting mid-market businesses, owning prospecting through close while building relationships and influencing product roadmap. Requires 5+ years senior B2B sales experience with proven quota exceedance.

65k โ€“ 100kMiami, FLAccount ExecutiveOn-site5+ YOEB2B SalesProspecting
Flex

Product Owner, Growth

Owns the growth engine for financial products, driving end-to-end multi-product experiences, enhancements to apps and payment solutions, and operational efficiencies. Collaborates with engineering, compliance, and support using data analytics and user research at a fintech startup.

United StatesProduct ManagementRemoteJiraAha!
Flex

City Manager - Dallas

Leads community building and events for business owners in Dallas to drive Flex brand awareness, referrals, and partnerships. Requires 2-5 years in community-building or partnerships, CRM experience, and strong networking skills.

Dallas, TXGrowth MarketingHybrid2+ YOECRMHubSpot
Flex

City Manager - Nashville

Leads community building and events for business owners in Nashville to drive Flex brand awareness, referrals, and partnerships. Requires 2-5 years in community-building or partnerships, CRM expertise, and strong networking skills.

Nashville, TNBusiness OperationsHybrid2+ YOECRMHubSpot
Flex

Venture Community Lead - NYC

Leads venture community in NYC by hosting events, building relationships with founders and VCs, driving referrals, and tracking ROI via CRM. Requires 2-5 years in VC/community-building, event hosting experience, and data-driven mindset.

New York, NYCommunityHybrid2+ YOECRMHubSpot
Flex

Account Manager

Manages a portfolio of high-growth customers in financial products, driving adoption, retention, expansion, and revenue growth while gathering feedback to influence product direction. Requires 2-5 years in Customer Success or Account Management in FinTech/SaaS.

80k โ€“ 100kUnited StatesAccount ManagementRemote2+ YOESaaSFinTech
Flex

Software Engineer

Build and own medium-sized features including user-facing tools, APIs, and backend services for financial products like payments and credit. Requires strong software fundamentals, product sense, and ability to deliver reliable code in a regulated environment using TypeScript, PostgreSQL, and GCP.

110k โ€“ 145kUnited StatesFullstack EngineeringRemoteGCPAPIs
Flex

Senior Software Engineer, Backend

Senior backend engineer owning large domains in card processing, ledgering, and financial services. Architects scalable services, mentors team, and drives end-to-end projects with 4+ years experience in Node.js/TypeScript and cloud platforms.

150k โ€“ 220kUnited StatesBackend EngineeringRemote4+ YOEAWSAzure
Flex

Business Development Representative

Identifies and qualifies new business opportunities through lead generation, outbound prospecting, and engaging decision-makers. Builds sales pipelines using CRM tools and collaborates with sales/marketing teams in a fast-paced FinTech startup.

60k โ€“ 70kUnited StatesSales DevelopmentRemoteCRMFinTech
Flex

Senior Product Marketing Manager

Leads product positioning, new feature launches, and adoption/retention campaigns across B2B and B2C fintech products. Collaborates with Product, Growth, and Brand teams; requires 5+ years in high-growth fintech product marketing with strong analytical and storytelling skills.

United StatesProduct MarketingRemote5+ YOEAsanaPR Strategy