Senior Software Engineer, Mobile & Web – Associate – (Remote)

July 16, 2025
Apply Now

Job Description

If this blog helped you, spread the word!

Job_Summary:

Flex is a growth-stage FinTech company based in NYC, focused on creating the best rent payment experience. They are seeking a Senior Software Engineer to develop and enhance their core user experience across mobile and web platforms.

Responsibilities:

• Responsible for the development of our core user experience across our mobile and web platforms.

• Working closely as part of a team to launch new features across our web and mobile platforms.

• Developing, designing, testing, and scaling new product offerings that solve complex problems in a simple way for all of our users.

• Working closely with other cross functional partners across our organization on a daily basis.

• Hands-on execution on work as both an individual, while also building products that allow for flexibility as we are evolving our product offerings.

Qualifications:

-Required:

• Strong computer science fundamentals

• A strong focus on building high quality mobile and web UIs to specifications

• Experience with various architectures and tools within the React Native and React ecosystems (Hooks, Components, Context, Redux)

• Experience leading and delivering products at a large scale without performance bottlenecks (hundreds of thousands to millions of users)

• Write maintainable code that uses industry best practices to improve the entire software development life cycle (unit testing, linting, automation)

• Ability to write well-documented and testable TypeScript code

• Familiarity with REST API’s and tooling across web and mobile architectures

• Collaborating with engineers across multiple teams to improve code quality

• Able to mentor engineers in using best practices for software development

• A minimum of 4 years experience in React.js or React Native

-Preferred:

• Prior experience working on cross functional teams

• Proficient with TypeScript (Bonus: Native iOS/Android)

• Experience with CI/CD to improve code stability and code quality

• Experience with IDE’s such as VSCode & Android Studio & XCode

• Familiar with Android / iOS / Web development tool ecosystem

• Motivated to help other engineers succeed and be effective

Company:

Flex enables people to pay bills on a schedule that fits their personal finances. Flex has a track record of offering H1B sponsorships.

If this blog helped you, spread the word!