---
title: 'Backend Engineer III at Stash'
canonical: 'https://feeny.ai/job/backend-engineer-iii-stash-new-york-wfy9xezp1z6t'
type: 'job'
last_seen: '2026-10-19'
---

# Backend Engineer III at Stash

- **Company:** Stash
- **Location:** New York, NY
- **Posted:** 2026-10-06
- **Last confirmed live:** 2026-10-19
- **Apply:** https://ats.comparably.com/api/v2/stash/post/8258558:?gh_jid=8258558

## Job description

Want to help everyday Americans invest and build wealth? Financial inequality is increasing, and too many people are getting left behind. At Stash, we’re passionate about democratizing wealth creation through education, advice, and products that help customers achieve greater financial freedom. We also believe in working smarter—leveraging AI and emerging technologies to move faster, operate more efficiently, and focus our time on solving meaningful problems for our customers.

As a key member of the Accounts Team, you will play a pivotal role in managing and enhancing our Core Banking System. Our system is built using Go, with a robust asynchronous architecture, and CockroachDB as the primary database. We are looking for engineers who are eager to tackle challenges in fintech, build scalable backend services, and contribute to the next generation of banking infrastructure.

This position operates on a hybrid schedule, requiring you to be on-site in our New York office at least three days per week to work with stakeholders and foster team collaboration.

What you'll do:

- Design, develop, and maintain backend services for our Core Banking System, ensuring performance, reliability, and scalability.
- Architect and implement robust asynchronous workflows to process banking transactions efficiently.
- Optimize and scale our system as we continue to grow, ensuring high availability and security.
- Act as an "Agent Conductor" to architect, design, and rapidly implement services by leveraging AI coding assistants.
- Collaborate with cross-functional teams, including operations and infrastructure teams, to deliver seamless experiences.
- Continuously deploy and monitor services in a cloud-based environment.
- Debug, test, and document code to ensure high-quality software development.

What we're looking for:

- 3 - 5 years of professional experience in backend software development.
- Strong proficiency in Go or Rails (or deep experience in another backend language with a willingness to learn Go).
- Experience working with event-driven, asynchronous architectures.
- Data-driven decision maker, willing to take risks, fail fast, and iterate at the speed of AI generation.
- Proficiency in working with relational and distributed databases, preferably CockroachDB, PostgreSQL, or similar.
- Hands-on experience building highly scalable, fault-tolerant backend services.
- A strong understanding of testing best practices, debugging, and profiling.
- Familiarity with cloud platforms (AWS).
- Excellent problem-solving skills and a mindset for continuous improvement.

Gold Stars:

- Knowledge of multi-region architectures.
- Familiarity with CI/CD pipelines, Terraform, and Datadog.
- Understanding of banking or fintech-related systems.

#LI-Hybrid

Our Commitment to Diversity, Equity, and Inclusion

We proudly celebrate the unique qualities that make you you, 365 days a year, and not just because it’s the right thing to do or good for business. We embed the principles and practices of diversity, equity, and inclusion (DEI) into all that we do to prioritize people, a Stash [core value](https://www.stash.com/careers), and to ensure Stashers of all backgrounds and experiences can be their authentic selves.

We are also proud to be the first and only venture-backed fintech to join the[CEO Action for Diversity & Inclusion™](https://lp.stash.com/news/stash-joins-ceo-action-for-diversity-inclusion-initiative/), and as an Equal Opportunity Employer, Stash is committed to building an inclusive environment for people of all backgrounds.

If you require any reasonable accommodations to make your application process more accessible, please reach out to recruiting@Stash.com.

Helping You Invest in Yourself

- Comprehensive total rewards package, comprising compensation (salary and equity) and health care benefits
- Complimentary subscription to[Stash+ account](https://www.stash.com/pricing)
- Flexible work policy – We offer a flexible work environment that blends working from home with in-person collaboration at our NYC office to support productivity and team culture.
- Flexible PTO
- Annual learning and development reimbursement benefit
- Work-from-home equipment stipends; home internet subsidy
- Paid Parental Leave (offerings for birth giving and non-birth giving parents) Primary & Secondary
- Enhanced health and wellness benefits through One Medical, Gympass, and Maven Health

External Recognition for Stash

- Benzinga’s 2023 Best Brokerage for Beginners and Best Robo-Advisor Awards
- Qorus-Accenture’s 2023 Banking Innovation Awards
- USA Today and Statista’s 2023 Top 500 Best Financial Advisory Firms
- Comparably's Best Company Awards: Best Places to Work, Best Company Outlook, and Best Engineering Team for Diversity, Women, Culture, and more! (2023)
- Fintech Breakthrough Award: Best Personal Finance App (2023)
- BuiltIn’s Best Places to Work (2022, 2021, 2020, 2019)
- Forbes Fintech 50 (2021, 2020, 2019)
- Best Digital Bank, Finovate Awards (2020)
- Tearsheet Challenge Awards, Best Banking Card Product - Stock-Back® Card, 2020
- LendIt Fintech Innovator of the Year (2020, 2019)

Salary Range: $140,000 - $160,000

The base salary range represents the reasonably anticipated low and high end of the salary range for this position. Actual salaries will vary and will be based on various factors, such as the candidate’s qualifications, skills, experience and competencies, as well as internal equity and alignment with market data for companies of our size and industry.

**No recruiters, please**

## About Stash

## Company Overview
- **One-liner**: Stash is a digital financial platform that helps everyday Americans save, invest, and build long-term wealth through a subscription-based app offering personalized guidance, fractional investing, banking, and financial education.
- **Entity Type**: Private (Series H, May 2025); acquisition by Grab Holdings announced February 2026 for ~$425M enterprise value (pending close)
- **Headquarters**: New York City, New York, United States
- **Founded**: 2015
- **Founders**: Brandon Krieg and Ed Robinson (Co-CEOs)

## Core Business
- **Primary industry**: Financial Services / Fintech – digital investing, banking, and financial wellness
- **Target customers**: B2C (everyday Americans, especially those new to investing) and B2B (employers via StashWorks)
- **Mission**: Make investing easy and affordable for everyone; empower everyday Americans to build wealth starting with just $5

## Products & Services
- **[Stash App]**: Subscription-based investing and banking platform that offers fractional stock investing, automated managed accounts (robo-advisor), retirement accounts (IRA), and custodial accounts for children. Includes personalized financial guidance and education.
- **[Stock-Back® Debit Card]**: Debit card that rewards purchases with fractional shares of stock (up to 3% back).
- **[StashWorks]**: Employer-sponsored financial wellness benefit that helps employees build healthier financial habits through education and guided tools.
- **[AI Money Coach]**: AI-powered conversational financial guide launched in late 2024, offering personalized, audit-friendly recommendations across investing, banking, and saving. Drives high engagement (~1 in 2 users take a positive action same day).

## Market Standing
- **Valuation/Market Cap**: Enterprise value of US$425 million at the time of Grab acquisition announcement (February 2026). Stash raised a $146M Series H in May 2025.
- **Key Metric**: Over 1 million active paid subscribers; more than $5 billion in assets under management (AUM) as of early 2026.
- **Total Funding**: Over $146M raised in Series H (May 2025) – cumulative funding not fully disclosed.
- **Notable Investors/Partners**: Backed by venture investors (names not specified in sources); acquired by Grab Holdings Limited (parent company). Banking services provided by Stride Bank, N.A.
- **Growth Signals**: Profitable on an Adjusted EBITDA basis post-Series H; expected to generate over $60 million in Adjusted EBITDA by 2028. Cash-flow positive business. Acquisition by Grab provides resources for U.S. growth and potential expansion into Southeast Asia.

## Competitive Advantages
- **Fractional investing pioneer**: Early mover in making stock investing accessible with small amounts.
- **All-in-one platform**: Combines investing, banking, retirement, and education in a single subscription – competing with Robinhood, Betterment, and Acorns.
- **AI-first personalization**: AI Money Coach delivers compliant, actionable guidance at scale – a differentiator in regulated financial services.
- **Strong brand recognition**: Named to Forbes Fintech 50, Comparably’s Best Engineering Team, Built In NYC Best Places to Work, and other awards.
- **Employer channel**: StashWorks offers a B2B distribution moat that deepens user engagement.

## Strategic Focus
- **Post-acquisition growth**: Remain a standalone U.S. brand under Grab while leveraging Grab’s technology and capital to accelerate AI innovation and product development.
- **Expand financial wellness suite**: Continue building AI Money Coach and StashWorks to increase subscriber lifetime value.
- **Potential international expansion**: Grab plans to explore introducing Stash’s investing solutions (including AI Money Coach) in Southeast Asia long-term.
- **Profitable scaling**: Maintain the path to $60M+ Adjusted EBITDA by 2028 through high-margin subscription revenue.

## Why Work Here
- **Culture**: Emphasis on “Prioritize People,” “Take Ownership,” “Create Solutions,” and “Obsess Over The Customer.” Diverse and inclusive culture cited as core value.
- **Work policy**: Hybrid with NYC office presence required (not fully remote).
- **Benefits**: Paid parental leave, excellent medical/dental/vision insurance, flexible time off.
- **Awards & recognition**: Comparably’s Best Engineering Team (2023), Best Places to Work (2023), Built In NYC’s Best Midsize Companies to Work For, USA Today Top 500 Best Financial Advisory Firms (2023).
- **Team**: Approximately 128 employees in the US (per LinkedIn). Notable alumni from JPMorgan Chase, Goldman Sachs, PayPal, Meta; current team includes engineering, product, data science, marketing, operations.
- **Growth opportunity**: Joining at a pivotal moment post-acquisition with access to Grab’s resources – offers exposure to high-scale fintech innovation and potential international projects.

## Sources
1. [stash.com - Careers Page](https://www.stash.com/careers)
2. [stash.com - About Page](https://www.stash.com/about)
3. [stash.com - Homepage](https://www.stash.com/)
4. [linkedin.com - Stash Company Profile](https://www.linkedin.com/company/stashfinancial)
5. [investors.grab.com - Grab Acquisition Announcement](https://investors.grab.com/news-and-events/news-details/2026/Grab-Accelerates-Financial-Services-Roadmap-with-Acquisition-of-Digital-Investing-Platform-Stash-Financial-Inc--2026-5wydDSQuVA/default.aspx)

## Other roles at Stash

- [Senior Fullstack Engineer](https://feeny.ai/job/senior-fullstack-engineer-stash-new-york-j9fmc1kkd9z2) — New York, NY
- [Senior Associate, Broker Dealer Compliance](https://feeny.ai/job/senior-associate-broker-dealer-compliance-stash-new-york-nw64x6b0202b) — New York, NY
- [Principal Product Manager, Engagement](https://feeny.ai/job/principal-product-manager-engagement-stash-new-york-yafgqc5n4xhc) — New York, NY
- [Director of Product, Engagement](https://feeny.ai/job/director-of-product-engagement-stash-new-york-z2k9ef5qa957) — New York, NY
- [Operations Associate](https://feeny.ai/job/operations-associate-stash-remote-42xqsw1v2v8r)
- [Office Manager (Part-Time)](https://feeny.ai/job/office-manager-part-time-stash-new-york-hzhktn9xkz2r) — New York, NY
- [Senior Product Designer, Growth Experiences](https://feeny.ai/job/senior-product-designer-growth-experiences-stash-new-york-c6yyt396t0rh) — New York, NY
- [Growth Marketing Manager](https://feeny.ai/job/growth-marketing-manager-stash-new-york-cecr96m9h7ny) — New York, NY
- [Copywriter](https://feeny.ai/job/copywriter-stash-new-york-ff9797t43rhr) — New York, NY
- [Senior Analytics Engineer](https://feeny.ai/job/senior-analytics-engineer-stash-new-york-f8yem35wy6yr) — New York, NY