Senior Software Engineer
San FranciscoOn-siteFull-time
AI Summary
A Senior Software Engineer at Finix designs and delivers payment platform solutions, owns technical vision and implementation for their domain, and mentors junior engineers while ensuring reliable, scalable services.
About this role
About Us
Move money. Make money. Finix is a full-stack acquirer processor, empowering businesses of all sizes with flexible, modern payment solutions. Processing billions of dollars annually, Finix enables SaaS, marketplace, and e-commerce platforms to accept payments, manage payouts, and onboard merchants seamlessly. With our no-code, low-code, and developer-friendly tools, businesses can get up and running in hours—not months.
Finix has raised over $175M, including a $75M Series C led by Acrew Capital, with participation from Lightspeed Venture Partners, Leap Global, American Express Ventures, Bain Capital Ventures, Homebrew, Inspired Capital, Sequoia Capital, Visa, and others.
About the role
The engineering team owns the delivery and stability of our product end to end. Since Finix serves as the complete payment platform of our customers’, our engineering team owns our customers’ ability to capture revenue. The Sr. Software Engineer role centers around envisioning superior technical solutions to our customers’ payment needs, leading its implementation and continuously ensuring reliable service to our customers. You will have broad autonomy and responsibility for formulating the best solution possible and working with your peers to deliver your vision. Finix is looking for a team member to join our engineering team who brings exceptional technical acumen, attention to detail, interest to grow and an obsession with building excellent, performing and scalable software.
You will
You are
You have
Skills
Continuous DeliveryHighly Available ServicesImplementationInfrastructureObservabilityPaymentsSecure APIsSoftware DesignTestingTroubleshooting
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All reports →- Role reportSoftware engineer jobs, Sep 2026: new listings down 9.7%New software engineer listings fell 9.7% to 1,506 this week, the first weekly drop in a month. Prioritize applications while 1,506 fresh roles remain open.
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- Market overviewState of tech hiring, September 2026: up 4.8%Tech hiring rose 4.8% month over month in September 2026, with 411,122 new listings. Customer support and account executive roles led the growth.
