Engineering Manager- Partner Engineering

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2026 and paying rent on time is expensive, inflexible, and difficult. We’re here to change that! Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. After deliberately keeping a stealth profile as we built up unprecedented investor support and an enthusiastic user base, we are looking for motivated individuals to help us keep our mission growing. Will you be a part of the team?

About the Job

As an Engineering Manager overseeing cross-functional teams at Flex, you will lead and mentor a diverse group of engineers, fostering collaboration across various disciplines to deliver impactful products and platform features. Your leadership will be pivotal in defining the team's vision and roadmap, ensuring alignment with Flex's mission to innovate the rent payment landscape.

Key Responsibilities

• Leadership & Mentorship: Guide and inspire a team of engineers, promoting a culture of ownership, inclusiveness, accountability, pragmatism, and urgency. Provide coaching and development opportunities to cultivate talent and drive team excellence.

• Cross-Functional Collaboration: Partner closely with product managers, designers, operations, and business leaders to evolve the team's vision and roadmap by thoroughly understanding customer needs. Ensure seamless collaboration across disciplines to build impactful products and platform features.

• Technical Excellence: Lead and participate in critical technical, design, strategy, and product discussions with leaders across the organization. Drive consensus around architectural and design decisions, ensuring our software remains scalable, secure, and maintainable.

• Product Development: Work with cross-functional partners to build impactful products and platform features. Define your team’s vision and roadmap by thoroughly understanding your customers’ needs. Creatively solve challenging technical problems at scale.

• Operational Oversight: Plan and execute an engineering roadmap that balances new and innovative feature development with ongoing maintenance, reliability, and performance improvements. Establish best practices for coding, testing, deployment, and documentation, cultivating a culture of continuous improvement.

Minimum Qualifications

• Experience: 8+ years of industry experience designing and building complex systems and delivering quality software. 3+ years of demonstrated success managing engineering teams, including providing mentorship, feedback, and investing in the career growth of team members

• Technical Proficiency: Strong technical background in software development. You have a strong track record of delivering high quality scalable software

• Leadership Skills: Proven ability to build a world-class team by hiring exceptional talent, coaching and developing engineers, and cultivating pragmatic engineering decision-making. Strong sense of ownership, accountability, and autonomy.

• Communication: Excellent communication skills with a history of healthy collaboration with product managers, engineers, and other engineering managers on developing roadmaps and executing against them.

• Problem-Solving: Well-developed curiosity and enjoyment in building creative solutions to complex problems. Ability to prioritize urgency, excellence, and delivery in a fast-paced and high-growth environment.

Preferred Qualifications

• Experience working in FinTech and familiar with major payment rails

• Proficient in Java frameworks and tools used at Flex, including Spring (core/web/boot), Gradle, JUnit, and JVM (memory/performance tuning, GC).

• Experience with Service-Oriented Architecture, REST APIs, Message Queues, and scalable architectures.

• Experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB) and containerization tools.

Flex takes a market-based approach to pay, and compensation may vary depending on your primary work location. Work locations are categorized into one of three tiers based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be commensurate with their experience, qualifications, and Flex’s internal leveling guidelines and benchmarks.

• Tier 1 (NYC/SF/Seattle): $200,000—$250,000 USD

• Tier 2: $180,000—$225,500 USD

• Tier 3: $170,000—$212,500 USD

#LI-Remote

Life at Flex:

We understand that it takes a diverse team of highly intelligent, curious, determined, empathetic, and self aware people to grow a successful company. Our HQ is located in New York City, but we have employees located throughout the US, Australia, Canada and South America. We are growing quickly, but deliberately, with a focus on building an inclusive culture. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity workplace.

We offer many employee benefits & perks. For full-time U.S based positions we offer:

• Competitive medical, dental, and vision available from Day 1

• Company equity

• 401(k) plan with company match (our company match kicks off at the beginning of 2026)

• Unlimited paid time off + 13 company paid holidays

• Parental leave

• Flex Cares Program

• Free Flex subscription

For full time non-US employees, we offer

• Competitive compensation + company equity

• Unlimited PTO