About the Job

Flex is a growth-stage, NYC-headquartered FinTech company building the payment layer for life’s financial obligations—giving households one place to see, split, and pay their bills around how they live and get paid. By giving people greater choice over how and when they pay, and helping eligible on-time payments build a positive credit history, Flex puts households back in control of their cash flow.

Building on our roots in rent, we’re expanding into a broader consumer bill management platform that helps people manage essential spend and align payments with their finances. Our Consumer engineering team within the New Verticals division is at the forefront of this expansion, building a new business line within Flex. We’re looking for motivated leaders who thrive in ambiguity, turn new ideas into products, and help shape how millions of people manage their financial lives.About the Role

We are looking for an experienced Senior Engineering Manager to own consumer engineering teams within the New Verticals division. These teams partner closely with the product and the business to deliver high quality and delightful user experiences and the systems that power them.

You will own multiple workstreams that tie directly to critical business KPIs. You will work closely with product managers to drive delivery of their workstreams with your team of highly adaptable, AI-enabled engineers who reside in the Consumer organization but range across the entire Flex system as necessary.

You will serve as a key technical partner to Product, business leadership, and cross-functional teams (such as Lifecycle Marketing (LCM), Legal & Compliance, and Risk) to drive outcomes across your workstreams. You will also represent Consumer engineering and New Verticals in Flex-wide architecture and quality initiatives, ensuring we build solutions that scale across Flex as a whole.

Our Engineering Teams

• Consumer Engineering: Builds the APIs and backend systems powering Flex’s consumer-facing mobile and web apps. This team focuses on delivering high quality, delightful and trustful customer experiences.
• Partner Integrations Engineering: Owns the backend services and integrations that connect Flex to financial partners and payment networks, ensuring secure, reliable payment flows and partner-facing experiences.
• Core Platform Engineering: Maintains the backend services and infrastructure supporting all business features, including Payments, Ledger, Identity, and Settlement, providing the foundation for all of Flex’s products.
  
  

What You’ll Do

Technical Leadership

• Define and execute the consumer architecture supporting New Verticals’ expansion into essential spend.
• Partner with engineering leaders across Flex to align technical decisions, reuse shared capabilities, and build systems that scale across business divisions.
• Guide design reviews and make high-impact technical decisions, balancing speed of experimentation with long-term maintainability.
• Ensure reliability, data integrity, and financial correctness across consumer workflows.

Execution & Delivery

• Partner with Product and business leadership to shape initiatives and connect engineering investments to customer value and business outcomes.
• Lead large, ambiguous projects from early exploration through launch and scale.
• Coordinate cross-team dependencies and resolve blockers regardless of team.
• Establish feedback loops that help the team learn from customer behavior, iterate quickly, and scale successful products.

People Leadership

• Manage, mentor, and grow a team of engineers.
• Establish strong ownership of customer outcomes, engineering quality, and operational excellence.
• Hire and develop senior engineers and future technical lead
• Elevate testing discipline and design rigor while helping the team navigate the uncertainty of building a new business line.

Operational Ownership

• Own the production health and reliability of the team’s consumer services.
• Improve observability, scalability, and incident response a
• Partner with Risk, Compliance, and platform teams to build safeguards into customer-facing financial workflows.
• Ensure new capabilities launch with clear operational ownership, monitoring, and support readiness.

Who You Are

Beyond the qualifications below, you are a generalist, enabler, and problem solver who leads through engineering management. High ownership and drive are your default. When a problem falls between teams or disciplines, you help find a path forward. You pair strong customer empathy with deep technical knowledge. You translate business strategy into execution and contribute meaningfully in design reviews. You develop excellent engineers and build strong teams, but don’t shy away from opening a PR yourself.

• 8+ years of software engineering experience spanning frontend and backend systems, and 3+ years managing engineers.
• Experience building and scaling consumer-facing products and the APIs and backend systems that power them.
• Strong product judgment and a track record of partnering with business and product leaders to delivery .
• Experience leading ambiguous, cross-functional initiatives from early definition through launch and iteration.
• Strong understanding of distributed systems, service architecture, reliability, and data integrity.
• Experience owning production services with high standards for uptime, correctness, and operational readiness.
• A track record of growing engineers, developing technical l with strong ownership and accountability.
• Ability to influence technical direction across teams and balance the needs of a new business line with shared company-wide capabilities.

Preferred

• Experience building or operating consumer fintech, payments, banking, or lending products.
• Experience launching a new product or business line from early experimentation through adoption and scale.
• Familiarity with customer onboarding, bill management, payment workflows, or other consumer financial experiences.
• Experience using product analytics and experimentation to i, engagement, or retention.
• Experience partnering with Risk and Compliance teams in a regulated environment.
• Background scaling high-growth consumer platforms.