Joblaze summary

In this role, the Senior Software Engineer at EarnIn focuses on designing, developing, and maintaining critical Money Movement systems that facilitate real-time financial transactions for millions of users. Proficiency in microservices, experience with monitoring tools, and a solid understanding of AI applications in software development are essential for success. This position is well-suited for engineers with over four years of experience in production services, particularly those with a background in financial systems. EarnIn's collaborative environment encourages cross-functional teamwork, enhancing the overall impact on the community.

Joblaze insights

Listed today — first seen on Joblaze October 25, 2026. Last confirmed on Earnin's careers page October 25, 2026.
This exact title is also open at 1 other location at Earnin: Mexico City, Mexico.

Quick facts

Is the Senior Software Engineer role remote?: It's hybrid — Earnin expects some on-site time in Mexico City, Mexico.
How much experience is required?: At least 4 years of relevant experience for this Senior Software Engineer role.
Where is the role based?: Earnin is hiring for this position in Mexico City, Mexico.
What's the tech stack?: Joblaze extracted these technologies from the posting: AI, C#, Datadog, Microservices, REST, SQL.
What seniority level is this role?: Earnin targets senior candidates for this position.
Is this full-time or contract?: Full-time for this Senior Software Engineer role at Earnin.

From the original posting

About EarnIn

POSITION SUMMARY
Money Movement systems are business-critical components of EarnIn’s success. We provide millions of customers with access to their money across a variety of payment rails, including debit, RTP, and more, moving billions of dollars annually. Our systems support real-time and scheduled transfers, and let us track outcomes, reconcile discrepancies, and respond to returns, chargebacks, and other events. Because these live services move real money around the clock, reliability matters as much as features. We seek experienced, collaborative, and resourceful senior engineers who have owned always-on production services and take pride in keeping them healthy. As a senior engineer, you will work cross-functionally and contribute to the design, development, and operation of our backend services. At EarnIn, working with AI is expected, not optional. We use AI tools every day to design, build, test, and operate our systems, and we expect our engineers to do the same.

This position will ideally be hybrid at our Mexico City office as part of our expanding site, though remote work is possible. EarnIn offers excellent employee benefits, including healthcare, internet and cell phone reimbursement, a learning and development stipend, and potential opportunities to travel to our headquarters in Mountain View. Our salary ranges are determined by role, level, and location.

WHAT YOU’LL DO

Drive the design and implementation of new features. Break down complex problems to their essentials, translate that complexity into elegant design, and write high-quality, maintainable code.
Own the health of the services you build: participate in the team’s on-call rotation, respond to alerts and incidents, and drive them through resolution and blameless postmortems.
Use AI tools in your daily workflow, from design and coding to testing, debugging, and incident response, and help raise the bar for how our team uses AI while staying accountable for the quality and safety of what ships.
Improve reliability and observability by building monitoring, alerting, dashboards, and runbooks that help us detect and resolve issues before our community feels them.
Debug production issues across our services infrastructure and multiple levels of our stack.
Design and deliver robust microservice integrations via REST/gRPC APIs and messaging patterns (events/queues).
Create and maintain test automation to enable continuous integration and development velocity.
Collaborate with and mentor other engineers through code, design, and architecture reviews, including coaching teammates on operational readiness.
Work cross-functionally with data science, design, product, finance, accounting, and analytics.
Work with distributed systems and care passionately about producing high-quality code.
Make a meaningful impact on the lives of our community members.

WHAT WE’RE LOOKING FOR

Proven experience supporting live, production services, including participating in an on-call rotation and responding to incidents under pressure.
4+ years of delivering value through software in a collaborative environment.
Experience working in microservice architectures is required.
Experience with monitoring and observability tools (e.g., Datadog) and a track record of improving service reliability, such as better alerting, faster recovery, or fewer repeat incidents.
Hands-on experience using AI coding and productivity tools in your day-to-day engineering work, with good judgment about when to trust their output and when to verify it.
Proficient in at least one modern programming language and able to understand more than one; we currently work in C#.
Hands-on experience working with SQL databases.
Experience with continuous integration and delivery tools.
Experienced in developing and executing functional and integration tests.
Excellent written and verbal communication skills, including clear communication during incidents.
Self-motivated and able to work independently with minimal supervision.
Experience with financial systems, payments, or ledgers, where correctness and auditability are a plus

#LI-Hybrid #LI-Remote

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.

Standard company text repeated across Earnin's postings is omitted here.

Senior Software Engineer

About EarnIn

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