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Senior Software Engineer (Full Stack)

Prosper

San Francisco, CA Hybrid permanent

Posted: March 16, 2026

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Quick Summary

We're looking for a motivated Software Engineer who can contribute to our team's goal of developing financial technology. Our ideal candidate will have experience with modern web development frameworks and be able to work well in a collaborative environment.

Job Description

The Role

Technology versatility is a critical success factor for our team. The ability to stretch beyond one’s specialty by learning new technologies fast and contributing to the team’s goal is highly valued. Prosper’s Engineering culture encourages teamwork, ownership, and cross-functional development of well-rounded engineers who have a holistic view of the problems and solution designs. Above all other factors, we are looking for determined candidates who want to be part of a culture of innovation and creativity as we develop financial technology! We are seeking motivated software engineers to work on our interdisciplinary scrum teams, building large scale systems at Prosper Marketplace. The ideal candidate is passionate about learning the Fintech domain and delivering cutting-edge, high-quality solutions to solve business problems.

Technologies we use: Java, Kotlin, SpringBoot, REST APIs, NodeJs, Microservices, GraphQL, React, Javascript, GCP.

This Full Stack role is roughly 70% backend 30% frontend.

This role is a HYBRID opportunity, based two-days a week (Wednesday & Thursday), from either our San Francisco or Phoenix offices.


Problems You Will Solve :
• Design and construct highly scalable, resilient, cloud-native, microservices-based distributed architecture systems.

• Develop, maintain, and enhance essential backend and frontend software components

• Collaborate with cross-functional product and analytics teams to guide or actively contribute to significant strategic initiatives, while also addressing ongoing operational challenges at scale

• Apply engineering expertise within a business framework to generate substantial business value, approaching problems with an operational perspective

• Proactively pinpoint gaps, challenges, and requirements within our systems and processes, formulating and implementing robust solutions independently

• Facilitate the migration of existing on-premises services to cutting-edge cloud technologies

• Collaborate with a team of dedicated, intelligent, and ambitious engineers committed to building large-scale systems at Prosper Marketplace

• Contribute to shaping and nurturing our company’s engineering culture, promoting continuous learning and fostering innovation


All About You :
• BS in EE/CS with 8+ years of experience or MS in EE/CS or other applicable disciplines with 6+ years of experience

• Strong grasp of computer science fundamentals, including algorithms, object-oriented programming, and distributed systems architecture

• Proficient in designing and building RESTful services and event-driven systems

• Expertise in Authentication and Authorization solutions

• Hands-on expertise with Java and experience working with both relational and non-relational databases, such as Firestore, Redis, and MemoryStore

• Demonstrated proficiency in leveraging cloud-native architecture and cloud services, particularly in implementing Cloud Functions and architecting Data Flows within GCP or AWS environments

• Proficiency in utilizing tools such as Spring Boot, Spring, Hibernate, JPA, and JMS

• Fundamental knowledge of HTML, CSS, JavaScript & GraphQL

• Proficiency in object-oriented languages such as Java

• Preferred experience in React Native or React, and Event Driven Architecture


What We Offer:
• The opportunity to collaborate with a team of creative, fun, and driven colleagues on products that have an immediate and significant impact on people's lives

• The opportunity to work in a fast-paced environment with experienced industry leaders

• Flexible time off, comprehensive health coverage, competitive salary, paid parental leave

• Wellness benefits including access to mental health resources, virtual HIIT and yoga workouts

• A bevy of other perks including Udemy access, childcare assistance, pet insurance discounts, legal assistance, and additional discounts


#LI-AW1

#IND1

About Our Technology Team
We are growing our Technology team to support our various financial products. The ideal candidate is passionate about learning the Fintech domain and delivering cutting-edge, high-quality solutions to solve business problems. We utilize a progressive, test-driven, Agile development methodology that places a high premium on communication, teamwork, sound design and clean implementation.

About Us
Founded in 2005, Prosper introduced U.S. consumers to an innovative new approach to personal finance called peer-to-peer lending. Twenty years later, Prosper has helped over 2 million customers achieve financial well-being through a comprehensive suite of products. Prosper’s flagship personal loan marketplace continues to offer a unique value for borrowers and investors alike. Home equity loans and lines of credit through Prosper provide homeowners a range of options and choices for tapping into the equity they’ve worked hard to build. The Prosper® Card supports people seeking access to credit and flexibility in managing their finances. Regardless of the product, Prosper is dedicated to meeting people where they are in their financial journey, in order to advance their financial well-being.

We’re on a mission to hire the very best, and we are committed to creating exceptional employee experiences where everyone is respected and has access to equal opportunity. We realize that new ideas can come from everywhere. It is important to us that every hire connects with our vision, mission, and core values. Join a leading fintech company that’s democratizing finance for all!

Our Values
Diversity expands opportunities
Collaboration creates better solutions
Curiosity fuels our innovation
Integrity defines all our relationships
Excellence leads to longevity
Simplicity guides our user experience
Accountability at all levels drives results

www.prosper.com
Our Story & Team // Our Blog

Applicants have rights under Federal Employment Laws.
Family & Medical Leave Act (FMLA)
Equal Employment Opportunity (EEO)
Employee Polygraph Protection Act (EPPA)

California applicants: please click here to view our California Consumer Privacy Act (“CCPA”) Notice for Applicants, which describes your rights under the CCPA.

At Prosper, we're looking for people with passion, integrity, and a hunger to learn. We encourage you to apply even if your experience doesn't precisely match the job description. Your unique skill set and diverse perspective will stand out and set you apart from other candidates. Prosper thrives with people who think outside of the box and aren't afraid to challenge the status quo. We invite you to join us on our mission to advance financial well-being.

Prosper is committed to an inclusive and diverse workplace. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical​​​ condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law, including the San Francisco Fair Chance Ordinance. Prosper will consider for employment qualified applicants who are non-US citizens and will provide green card sponsorship.

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