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Backend Engineer Iii

Stash

New York
Development Backend Business Analyst

Job Score

100 pts
On-site model (+70) Development (+10) Backend (+10) Business Analyst (+10)

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.

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, 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™, 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 
  • 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**

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About Software Development

Software Development is one of the most dynamic and constantly evolving fields in the job market. Professionals in this area are responsible for creating, maintaining, and optimizing web, mobile, and desktop applications that impact millions of users daily.

Key languages and frameworks include JavaScript (React, Node.js, Vue.js), Python (Django, Flask), Java (Spring), PHP (Laravel), and TypeScript. Demand for full-stack developers continues to grow, especially in tech companies and startups.

Salaries range from entry-level to senior positions, with growing opportunities for remote work and international freelancing.

About Backend

The Backend area is responsible for all server logic, APIs, databases, and infrastructure that support web and mobile applications. Backend professionals ensure that systems are scalable, secure, and performant.

Key skills include languages like PHP, Java, Python, Ruby, Go, and Node.js, frameworks like Laravel, Spring Boot, Django, and Express, databases (MySQL, PostgreSQL, MongoDB, Redis), software architecture (clean architecture, DDD, microservices), and API security (OAuth, JWT).

Backend developers in technology companies are highly valued, especially those who master microservices architecture, cloud computing, and high-scale performance. The field offers opportunities from junior developer to software architect, with a focus on scalability, security, and efficiency.

About Business Analysis

The Business Analyst (BA) is the professional responsible for identifying problems, opportunities, and solutions in organizational processes, acting as a bridge between business areas and the technology development team. They gather and specify requirements, map value streams, design future processes, and help ensure that software deliveries align with the company's strategic goals.

Discover Other Areas

Understand the scope of work, key skills, and tools used in different career areas.

About Fullstack

Fullstack developers are versatile professionals capable of working on both frontend and backend of web and mobile applications. They master multiple technologies and can build complete products end-to-end, from the user interface to server infrastructure.

Key skills include proficiency in at least one complete stack (React/Vue/Angular + Node.js/PHP/Python/Java), databases (SQL and NoSQL), REST/GraphQL APIs, Git versioning, CI/CD, and basic infrastructure knowledge (Docker, cloud). Clean architecture, DDD, and testing are important differentiators.

Fullstack developers are highly valued in startups and companies that need versatile and autonomous professionals. The field offers opportunities from junior developer to software architect, with a focus on complete delivery, holistic product vision, and ability to work across multiple application layers.

About Infrastructure and DevOps

Infrastructure and DevOps are responsible for creating, maintaining, and optimizing IT environments that support applications at scale. This area is fundamental for system reliability and performance.

Key technologies include AWS, GCP, Azure, Docker, Kubernetes, Terraform, Ansible, CI/CD (GitHub Actions, GitLab CI, Jenkins), and monitoring (Datadog, Grafana, Prometheus).

DevOps engineers and SREs are highly sought-after professionals, with salaries among the highest in the technology sector.

About Cloud Solutions

The Cloud Solutions area is responsible for designing, implementing, and managing cloud infrastructure and services (AWS, Azure, GCP) for companies. Cloud professionals architect scalable, secure, and cost-optimized solutions, from data center migrations to serverless and multi-cloud architectures.

Key skills include IaC (Terraform, CloudFormation), containers (Docker, Kubernetes), serverless (Lambda, Cloud Functions), managed databases (RDS, DynamoDB, BigQuery), cloud networking (VPC, CDN, load balancer), and security (IAM, WAF, KMS). Knowledge of FinOps, cloud governance, and AWS/Azure/GCP certifications is a differentiator.

Cloud Solutions professionals in technology companies are highly valued, especially those who master multi-cloud architectures, FinOps, and can optimize costs while maintaining performance and security. The field offers opportunities from cloud engineer to cloud solutions architect, head of cloud, and chief cloud architect.

About Technical Support

Technical Support is essential to ensure customer satisfaction and retention. Support professionals resolve technical issues, document solutions, and identify patterns that can lead to product improvements.

Key skills include troubleshooting, customer service, technical documentation, ITIL knowledge, and ticketing tools (Zendesk, Freshdesk, Intercom).

Technical support has evolved from a reactive to a proactive function, with high-level professionals working in Customer Engineering and Support Engineering.

About Advertising

The Advertising area is aimed at the planning, creation, and delivery of communication campaigns to promote brands, products, ideas, or services. Professionals in the sector work in advertising agencies or in-house marketing departments in creative fields (art direction, copywriting), strategic planning, account management, and media buying.

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Marketing Career Guide

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Finance Career Guide

Financial market, investments, corporate finance, certifications, and strategies to grow in the financial field.

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Communication Career Guide

Journalism, PR, Corporate Communication, Content Marketing, and Multimedia Production.

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Administration Career Guide

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Product Career Guide

Product Management, Product Ownership, Agile, Scrum, and OKRs. From strategy to execution.

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Tech & Remote Glossary

Stop getting lost in interviews and job descriptions

The job market, especially within tech and global companies, has developed its own dialect. Not understanding these acronyms can make you lose valuable opportunities or poorly negotiate your contract. To end this problem, we created the Definitive Glossary for the Remote Professional.

🏢 Work Models & Routine

Async (Asynchronous Work)
A communication model where responses don't need to be immediate. Instead of back-to-back meetings, the team relies on well-structured documents, threads, and messages. It's the gold standard for global companies spanning multiple time zones.
Sync (Synchronous Work)
The opposite of Async. It requires the team to be online and available at the same time for meetings, live chats, and real-time collaboration.
Daily / Stand-up
A quick daily meeting (usually 15 minutes) common in Agile (Scrum) methodologies. The team answers three questions: What did I do yesterday? What will I do today? Are there any blockers?
All-Hands / Town Hall
A company-wide meeting involving all employees. Usually led by the founders (C-Levels) to present results, new goals, and answer team questions.
1:1 (One-on-One)
A recurring individual meeting between a professional and their direct manager. It is used for career alignment, feedback, and problem-solving, not just for project status updates.

💰 Contracts, Benefits & Compensation

PTO (Paid Time Off)
Instead of strict, categorized leave policies, modern US companies usually offer a flexible pool of days (e.g., 20 days of PTO, or even "Unlimited PTO") that you can use for vacations, sick days, or personal matters, while receiving your regular compensation.
Equity / Stock Options
Company ownership. The startup offers you the right to buy shares at a heavily discounted strike price in the future. If the company grows, goes public, or is acquired, these shares can be highly lucrative.
Vesting (Vesting Schedule)
The rule that controls your Equity. It usually lasts 4 years. You don't get all the shares on day one; you "earn" them gradually as you stay with the company. A "1-year Cliff" means you must stay for at least one year to receive your first batch of shares.
RSUs (Restricted Stock Units)
Unlike Stock Options (where you have the right to buy the stock), RSUs are actual shares the company grants you as a bonus or part of your compensation package, following a strict Vesting schedule.
Independent Contractor (1099 / B2B)
The most common international hiring model for global talent working for US companies. You act as a service provider (business-to-business), receiving the gross salary (often six-figure compensation) without standard local payroll tax deductions at the source.

🤖 Recruitment & Hiring Process

ATS (Applicant Tracking System)
The "robot" that reads your resume. Software like Greenhouse, Ashby, and Workday are used to filter candidates by keywords before a human even looks at the document. (Pro tip: this is why your resume must be clean, semantic, and have the right keywords).
JD (Job Description)
The document that lists the responsibilities, technical requirements, and benefits of the open position.
Cultural Fit
The interview stage that evaluates if your core values, communication style, and worldview align with the company's culture. This is the ultimate test of your Soft Skills.
Onboarding
The integration process. It's the period of your first few weeks at the company, where you get your access credentials, learn about the culture, study the internal documentation, and understand how the product works.

🚀 How to use this to your advantage?

The secret isn't just knowing what these acronyms mean, but using them actively. If during an interview for a premium tech role you ask, "How does your PTO policy and Vesting schedule work?", the recruiter will immediately perceive you as a high-level professional, familiar with the global market standards.

The remote job market requires preparation. And having the right vocabulary is the first big step to securing six-figure proposals and standing out among thousands of applicants.

Expert Tip

The New Account Manager Profile: How to Land the Best Remote B2B SaaS Jobs

The Evolution of Account Management: Beyond Relationship Building

If you are aiming for an Account Manager (AM), Key Account Manager (KAM), or Enterprise Account Director role in 2026, it is crucial to understand that the traditional "order-taker" profile focused solely on charisma is a thing of the past. In tech companies, especially within the B2B SaaS (Software as a Service) model, Customer Acquisition Cost (CAC) is higher than ever. Consequently, retaining and expanding the existing customer base are now the primary drivers of profitability.

Recruiters at tech giants and hyper-growth startups are looking for hybrid professionals: individuals with sharp emotional intelligence, but who also possess strong analytical skills to interpret usage data and prevent churn. If your resume does not reflect this duality, you will quickly be filtered out by modern ATS algorithms.

3 Critical Skills to Make Your Resume Stand Out

1. Mastery of Data-Driven Strategies

An elite Account Manager does not wait for the client to complain before taking action. They actively monitor account health. During interviews, you must be able to discuss how you leverage CRM tools (like Salesforce, HubSpot, or Pipedrive) and Customer Success platforms (like Gainsight or Totango) to identify Upsell and Cross-sell opportunities.

"B2B sales teams that adopt data-driven and AI-backed strategies perform substantially better in customer retention and account expansion."

Gartner Report on B2B Sales

2. Bridging the Gap Between Client and Engineering (Product Feedback Loop)

You will act as the voice of the customer within the company. The most competitive roles require the AM to translate client business pains into actionable insights for Product Managers (PMs) and Software Engineers. In your portfolio of achievements, always mention how your clients' feedback helped shape the product roadmap, resulting in new features and increased Net Promoter Scores (NPS).

3. Asynchronous Communication and Remote Strategic Consulting

With remote work firmly established globally, traditional in-person business lunches have been replaced by strategic Zoom calls and asynchronous alignments. You need to demonstrate your ability to lead a Quarterly Business Review (QBR) effectively in a remote setting, presenting ROI (Return on Investment) reports that easily justify contract renewals.

Practical Interview Tips

When you reach the interview stage with a VP of Sales or Head of Customer Success, drop the generic speech and bring concrete numbers to the table. Structure your answers using the STAR method (Situation, Task, Action, Result).

  • Focus on Net Revenue Retention (NRR): Do not just state how many accounts you managed; explain how you successfully grew the revenue of those accounts over time.
  • Conflict Resolution: Have a ready-to-tell example of an "at-risk" account that you managed to turn around and save from churning.
  • Onboarding and Adoption: Explain your methodology for ensuring that the client fully adopts and utilizes the software from day one.

The Path to Six-Figure Remote Roles

The US tech market remains highly competitive, with enterprise account roles in startups and scale-ups consistently offering six-figure base salaries plus aggressive OTE (On-Target Earnings). However, simply applying through standard job boards often leads your resume straight into a black hole. To access the "hidden job market" of premium US Remote opportunities, smart networking and utilizing curated tech platforms are absolute requirements.

"The best sales opportunities are not the ones you merely apply for; they are the ones your reputation and network qualify you for in advance."

Harvard Business Review: The Future of B2B Sales