F

Staff Software Engineer

Flex • United States
Relocation
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Flex is seeking a Staff level Engineer to develop and scale platform and app experiences that empower users and partners, driving 10x growth. The role focuses on creating exceptional user and partner experiences, designing APIs and data pipelines, and implementing changes through agile methodologies. Key requirements include 7+ years of software development experience, 3+ years with Java, React/React Native, and TypeScript, and proficiency in Spring, AWS, and CI/CD systems.

Key Highlights
7+ years of professional software development experience
3+ years of Java, React/React Native, and TypeScript experience
Proficiency in Spring, AWS, and CI/CD systems
Focus on user onboarding and platform scalability
Hybrid work model with 2-3 days on-site per week

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Key Responsibilities
Focus on creating exceptional user and partner experiences that drive engagement and retention
Partner closely with product managers, designers, and data scientists to identify and solve critical user onboarding challenges
Design, develop, test, and deploy robust APIs, services and data pipelines that enhance user onboarding and overall platform experience
Implement changes through an agile methodology, prioritizing rapid iteration and continuous improvement
Utilize data and analytics to measure the impact of your work and identify opportunities for optimization
Technical Skills Required
Java React TypeScript Spring AWS

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Benefits & Perks
Competitive medical, dental, and vision
Company equity
401(k) plan with company match
Unlimited paid time off
13 company paid holidays
Parental leave
Free Flex subscription

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Nice to Have
Experience building and improving user onboarding funnel and designing comprehensive experiments
Proficiency in CI/CD systems (preferably GitHub Actions), git, and automation
Skilled in observability and monitoring tools such as DataDog
Experience with big data platforms and tooling including Snowflake
Proficient in Infrastructure as Code using tools like CDK and Terraform
Ability to elevate team standards through best practices and mentor junior engineers
Excellent written and verbal communication skills with experience in cross-functional collaboration

Job Description

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?
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Job Overview
Posted Jul 12, 2026
Employment Full-time
Experience Not Applicable
Location United States
Category Marketing
Company Flex
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