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EarnIn

Senior Fullstack Engineer (Web Development)

Job Summary

The role involves leading the transformation of a web application into a scalable and maintainable platform while optimizing performance. The candidate will collaborate with cross-functional teams, mentor other engineers, and ensure best practices in architecture and code quality. Requires 4+ years of experience with React and TypeScript in large-scale environments, with additional knowledge of backend technologies and testing. The environment promotes collaboration and innovation, offering benefits such as healthcare and professional development stipends.

Required Skills

SQL
React
Testing
Performance Optimization
Debugging
Web Development
TypeScript
Mentoring
Kotlin
Kafka
C#
Continuous Integration
Backend Technologies
Code Architecture

Benefits

Internet Reimbursement
Travel Opportunities
Learning and Development Stipend
Healthcare
Phone Reimbursement

Job Description

About EarnIn

As one of the first pioneers of earned wage access, our passion at EarnIn is building products that deliver real-time financial flexibility for those with the unique needs of living paycheck to paycheck. Our community members access their earnings as they earn them, with options to spend, save, and grow their money without mandatory fees, interest rates, or credit checks.

We’re fortunate to have an incredibly experienced leadership team, combined with world-class funding partners like A16Z, Matrix Partners, DST, Ribbit Capital, and a very healthy core business with a tremendous runway. We’re growing fast and are excited to continue bringing world-class talent onboard to help shape the next chapter of our growth journey.

POSITION SUMMARY

We seek an experienced, passionate, and resourceful Senior Fullstack Engineer to join our web team. In this role, you will work cross-functionally with various teams to design, develop, and optimize web and backend services. You will play a key role in transforming our web platform into a scalable, high-performing solution while maintaining best practices in architecture, code quality, and performance optimization.

At EarnIn, we foster a collaborative and innovative environment where engineers are empowered to take ownership of their work and drive meaningful impact. This position will ideally be hybrid from our Mexico City office as part of our expanding site, though a remote arrangement is possible. EarnIn provides excellent employee benefits, including healthcare, internet/cell phone reimbursement, a learning and development stipend, and potential opportunities to travel to our Palo Alto HQ. Our salary ranges are determined by role, level, and location.

WHAT YOU'LL DO

  • Lead the transformation of the web app from its MVP phase to a scalable, robust, and maintainable web app.
  • Drive web performance optimization initiatives and establish benchmarks for future excellence.
  • Collaborate with web platform engineers to deliver and uphold enterprise-grade architecture standards.
  • Collaborate and mentor other engineers while providing thoughtful guidance using code, design, and architecture reviews.
  • Debug production issues across our services infrastructure and multiple levels of our stack.
  • Develop and deliver new features with end-to-end ownership.

WHAT WE'RE LOOKING FOR

  • 4+ years of experience developing and maintaining React+Typescript web applications within a large-scale engineering environment.
  • Led or collaborated with a team to evolve an MVP web app into a robust, scalable solution.
  • Understanding of backend technologies and languages. Prior experience with C# or Kotlin, Kafka, and SQL would be a plus.
  • Bachelor's, Master’s, or PhD in computer science, computer engineering, or a related technical discipline or equivalent industry experience.
  • Experience with continuous integration and delivery tools.
  • Experienced in developing and executing functional and integration tests.
  • Excellent written and verbal communication skills.
#LI-Remote #LI-Hybrid

At EarnIn, we believe that the best way to build a financial system that works for everyday people is by hiring a team that represents our diverse community. Our team is diverse not only in background and experience but also in perspective. We celebrate our diversity and strive to create a culture of belonging. EarnIn does not unlawfully discriminate based on race, color, religion, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity, gender expression, national origin, ancestry, citizenship, age, physical or mental disability, legally protected medical condition, family care status, military or veteran status, marital status, registered domestic partner status, sexual orientation, genetic information, or any other basis protected by local, state, or federal laws. EarnIn is an E-Verify participant.

EarnIn does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies in response to job postings. No fee will be paid to third parties who submit unsolicited candidates directly to our hiring managers or HR team.

Interested in this job?

Application deadline: Open until filled

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EarnIn

EarnIn is an app that gives you access to the pay you've earned - when you want it. Get paid for the hours you've worked without waiting for payday.

See more jobs
Date PostedMay 7th, 2025
Job TypeFull Time
LocationRemote, Mexico
SalaryCompetitive rates
Exciting remote opportunity (requires residency in Mexico) for a Senior Fullstack Engineer (Web Development) at EarnIn. Offering competitive salary (full time). Explore more remote jobs on FlexHired!

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