← Back to jobs

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.

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, 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**

What did you think of this job?

Comments 0

Want to leave a comment?
Sign in or create your account in seconds to join the discussion.
Loading comments...

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 Finance

The Finance area in technology companies combines traditional financial knowledge with advanced digital tools. FP&A, controlling, and corporate finance professionals are essential for the organization's financial health.

Key skills include financial modeling, metrics analysis (MRR, ARR, LTV, CAC), ERP (SAP, Oracle), and BI tools. Certifications like CFA and CPA-20 are differentiators.

The financial sector offers stable opportunities with competitive salaries, especially in fintechs and large technology companies.

About Administrative

The Administrative area is responsible for ensuring the efficient functioning of all organizational operations. Administrative professionals manage processes, human resources, procurement, and facility management.

Key skills include process management, Office 365, administrative ERPs, compliance, and people management. Knowledge of automation and AI tools is becoming increasingly relevant.

The digitization of administrative processes has created new opportunities for professionals who master technology and management.

About Business Intelligence

Business Intelligence (BI) is the area responsible for transforming raw data into strategic information for decision-making. BI professionals build dashboards, reports, and analyses that help companies understand their performance and identify growth opportunities.

Key skills include data modeling (star schema, snowflake), ETL (extraction, transformation, loading), advanced SQL, BI tools (Power BI, Tableau, Looker), data warehousing, KPIs, and business metrics analysis (MRR, churn, cohort). Knowledge of dbt, Airflow, and data pipelines is a differentiator.

BI professionals in technology companies are highly valued, especially those who master data visualization, analytics engineering, and can translate complex data into actionable insights for the business. The field offers opportunities from BI analyst to head of data, with a focus on data-driven decision making.

About UI Design

The User Interface (UI) Design area focuses on creating and designing all the visual elements that users interact with in a digital product. This includes screens, buttons, icons, typography, color palettes, and responsive layouts, ensuring an aesthetically pleasing, consistent, and easy-to-use interface. Skills in tools like Figma and knowledge of design systems are essential.

About Photography

The Photography area encompasses the capture, editing, and processing of static images for commercial, advertising, editorial, or artistic purposes. Professionals in this field master lighting techniques, visual composition, camera and lens operation, as well as the use of specialized editing and post-processing software such as Adobe Photoshop and Lightroom.

Career Guides

Technology Career Guide

Planning, skills, interviews, and professional growth in IT, Data Science, DevOps, and Product.

Read full guide →

Design Career Guide

UX/UI, Graphic Design, Product Design. Portfolio, tools, interviews, and growth in the Design field.

Read full guide →

Marketing Career Guide

SEO, Paid Media, Growth, Content Marketing. Certifications, tools, and strategies to grow in Digital Marketing.

Read full guide →

Finance Career Guide

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

Read full guide →

Communication Career Guide

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

Read full guide →

Administration Career Guide

Business Management, HR, Logistics, Consulting, Project Management, and Entrepreneurship.

Read full guide →

Data Career Guide

Data Science, Data Engineering, BI, Machine Learning, and AI. From training to the job market.

Read full guide →

Product Career Guide

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

Read full guide →

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 Paradigm of Digital Marketing and Social Media

The New Paradigm of Digital Marketing and Social Media: Impact, Opportunities, and the Future of the Market

By Mondywork Team | 6-minute read

The Evolution: From "Just Posting" to True Revenue Engines

There was a time when digital marketing was viewed as a secondary department, heavily focused on vanity metrics like likes and follower counts. That era is officially over. In today's global market, Digital Marketing and Social Media Management are the beating heart of customer acquisition, acting as literal Revenue Engines.

Top-tier US startups, unicorns, and global B2B/B2C enterprises have realized that consumer attention is the most expensive asset on the internet. It's no longer just about creativity; it's about merging authentic communication with ruthless data analysis and Artificial Intelligence integrations.

How Does This Market Impact Global Companies?

The impact of modern marketing on the corporate world is absolute. According to the HubSpot State of Marketing report, companies that closely align their digital strategies with sales see a 20% higher revenue growth.

  • CAC Reduction and LTV Focus: Companies rely on marketing professionals to lower Customer Acquisition Cost (CAC) through organic traffic and social media, while simultaneously increasing Lifetime Value (LTV) through retention strategies.
  • Community-Led Growth: Brands don't just want consumers anymore; they want raving fans. Social media has evolved into a community-building channel, where engagement breeds brand advocates who buy repeatedly.
  • Global and Borderless Presence: Digital marketing has shattered geographical borders. A startup in Silicon Valley can easily scale its sales in Europe using campaigns managed by a strategist based in Brazil, Portugal, or anywhere else, working 100% remote.

The 2026 Landscape: What Do Companies Expect?

The digital marketing job market has never been more technical and demanding. The era of the "jack-of-all-trades" generalist is making way for hyper-focused experts and strategists with a systemic vision—the highly sought-after "T-Shaped" professionals.

"Marketing has transitioned from an art based purely on intuition to a science driven by data, predictability, and hyper-segmentation."
— eMarketer Digital Trends

The barrier to entry has risen significantly due to the integration of Artificial Intelligence. Tools that generate copy or images in seconds (like ChatGPT and Midjourney) haven't replaced the professional; they've raised the bar. The market now seeks talent who can "pilot" these AIs to craft strategies, automate workflows using tools like n8n or Zapier, and analyze Business Intelligence (BI) dashboards in Looker Studio.

Golden Opportunities: The Hottest Roles

Highly qualified professionals are being fiercely fought over, especially on platforms like Mondywork, where international companies seek remote talent offering six-figure compensation and global remote flexibility. The areas with the highest demand include:

  1. Growth Marketer / Hacker: The professional focused on rapid experimentation across the marketing funnel (Pirate Metrics - AARRR). They blend marketing, data analysis, and a bit of product engineering to find scalable growth levers.
  2. Performance Manager (Paid Media): The traditional traffic manager has evolved. Today, this professional manages multi-million dollar budgets across Google Ads, Meta Ads, and LinkedIn Ads (essential for B2B), with an absolute focus on ROAS (Return on Ad Spend).
  3. Social Media Strategist & Community Manager: Going far beyond scheduling posts, this talent understands internet culture, dominates short-form formats (TikTok, Reels, Shorts), and knows how to convert a social audience into qualified leads within the company's sales funnel.
  4. SEO & Content Architect: With shifting search algorithms and the impact of AI (Search Generative Experience), the SEO professional who masters search intent, information architecture, and Core Web Vitals is indispensable for long-term organic acquisition.
  5. Marketing Operations (Marketing Ops): The architect behind the curtain. They manage CRMs (Salesforce, HubSpot), email automations, and ensure the entire marketing data infrastructure is flawless.

Is It Worth Entering or Transitioning into This Field?

Absolutely. If you are an analytical, curious professional who understands human behavior and isn't afraid of data spreadsheets, digital marketing offers one of the most promising and flexible career paths in the modern world.

To stand out in rigorous international recruitment systems (ATS like Greenhouse and Ashby), it is crucial that your resume and portfolio showcase real results. Forget generic descriptions; US tech recruiters and Heads of Marketing want to read hard metrics: "Increased organic traffic by 150% in 6 months" or "Managed $500k in ad spend while maintaining CAC 20% below target".

The global market is vast, decentralized, and pays incredibly well for those who know how to turn clicks and views into predictable revenue.