Senior Frontend Engineer

Reposted 18 Days Ago
New York City, NY, USA
In-Office
180K-230K Annually
Senior level
Artificial Intelligence • Fintech • Business Intelligence • Financial Services
Monstro is the financial intelligence system built for financial institutions.
The Role
Lead frontend development across React applications, driving architecture, delivering responsive accessible UIs, promoting test-driven development, optimizing build and CI/CD pipelines, collaborating with design and backend teams, and mentoring engineers to maintain high-quality, scalable frontend systems.
Summary Generated by Built In
About Monstro

Monstro provides the AI-powered Financial Intelligence System for regulated financial institutions. It enables banks and wealth managers to deliver continuous, personalized, governed Financial Guidance to every client, not just the top tier, across their entire financial life: saving, borrowing, investing, planning, protecting, and preparing.

Meaningful Financial Guidance has only ever been available to a small portion of people. We are changing that, through the institutions people already trust. Institutions already have the relationships, the data, and the context to understand each client; Monstro turns that understanding into guidance that helps each person understand, decide, and act. For clients, that means clearer decisions, proactive support when life changes, and a better view of their financial lives. For institutions, it means deeper relationships, more clients served consistently, and more of each client’s financial life managed in one place.

What makes this possible is how the system is built. Governance is not an added feature; it is foundational. Every recommendation reflects the institution’s own views, policies, and permissions. Every output can be audited, traced, and reversed, and client data stays under the institution’s control. Generative AI is used to build and configure the system; at runtime, execution is deterministic, so every output can be explained and stood behind, not just trusted.

The work

We are building for a high-stakes industry where the work has real consequences. Guidance only matters if people can trust it and institutions can govern it. The challenge is to make Financial Guidance more personal and more available without making it less trusted: to build AI that institutions can audit, explain, and reverse, in a domain where being wrong carries real cost. That is what makes the problem hard, and the work meaningful. This is not a simple AI problem; it takes product judgment, technical depth, regulatory discipline, design quality, and a team that moves quickly without lowering the bar.

Monstro is moving from vision to market: launching with financial institutions, growing the team, and building for the enterprise in one of the most regulated industries. You will be expected to think clearly, communicate directly, move with urgency, hold a high standard, and take responsibility for work that matters. We are an early team building something ambitious, and what you do here will shape both the product and the company.

What You'll Do

Responsive Product Development in an AI-powered workflow

  • Build and own features across our React applications, delivering polished experiences for our users and clients. Ensure the product feels native and responsive across different viewports, while maintaining a shared codebase. Utilise the latest AI powered tools (e.g. Claude/Codes etc) in your workflow, from design to build to deployment.

Frontend Architecture 

  • Drive architectural decisions for our frontend stack—component structure, state management, navigation patterns, and API integration strategies. Establish patterns and abstractions that balance developer velocity with long-term maintainability.

Quality & Test-Driven Development 

  • Champion a test-driven development culture. Design and implement comprehensive testing strategies spanning unit, integration, and end-to-end tests. Ensure the codebase remains reliable and regression-free as we scale.

Accessibility 

  • Ensure our application meets accessibility standards, making our product usable for all users regardless of ability. Advocate for inclusive design practices throughout the development process.

Build & Delivery Pipeline 

  • Work with build tooling, bundlers, and CI/CD pipelines to ensure smooth, reliable releases. Collaborate with platform engineers to optimize build times, automate quality gates, and streamline the path to production.

Collaboration & Mentorship 

  • Partner with designers to translate vision into implementation and with backend teams to define effective API contracts. Mentor other engineers through code reviews, pairing, and technical guidance, raising frontend standards across the organization.
What We're Looking For
  • 5+ years of professional frontend development experience
  • Strong proficiency in React and Typescript with production web-app experience
  • An appreciation of UX and the creative process
  • Solid grasp of modern CSS, responsive design principles, and accessibility standards
  • Experience with test-driven development and frontend testing frameworks
  • Contributions to design systems or component libraries
  • Confidence working with APIs and understanding backend services and system integrations.
  • Comfortable working with build tooling, bundlers, and CI/CD integration
  • Clear communicator who thrives in a collaborative, fast-moving environment
  • Adaptable fast learner who is excited about staying on top of the latest trends in frontend development and wants to lead the team in adopting the latest best practices
Nice to Have
  • Full stack experience including backend/API development experience (our backend is in python)
  • Background in fintech or regulated industries
Why Monstro?
  • Impact: Build technology that helps millions of people make better financial decisions, through the institutions they already trust, and help define the category of Financial Intelligence.
  • Ownership: High trust, high ownership, high standards. You will own meaningful problems end to end from day one.
  • Experienced team: Work with leadership that has a track record of scaling companies from early stage to major exits.
  • Principles-driven culture: We move fast, because the opportunity is urgent. We communicate directly, because clarity saves time. We hold a high standard, because institutions and clients need to trust what we build.
  • In person, in New York: We are headquartered at The Spiral in Hudson Yards and work in the office four days a week, because our pace depends on fast collaboration.
  • Compensation and benefits: Competitive cash compensation and meaningful equity, plus 100% employer-paid medical, dental, and vision coverage, disability coverage, flexible PTO, paid parental leave, and catered meals.

Base Compensation Range for New York City: $180,000 - $230,000

*The posted range reflects the base salary for this role across the market ranges for each location. Final compensation will depend on a variety of factors, including experience, skills, internal leveling, and market conditions, and will be offered within the stated range in accordance with applicable pay transparency laws.

A Note on Interviewing: We sometimes use AI note-takers to help us transcribe interview notes, so we can be more present in your interview. If you’d like to opt out of us using automatic transcribers, please note this in the free text field in your application; otherwise we’ll take your application as confirmation that you’re happy for us to use note-takers (whether added to video calls or in the background).

Ready to Build With Us?

The standard is simple: do great work, own the outcome, communicate with purpose, move with urgency, raise the level. If that sounds like you, we’d love to hear from you.

Skills Required

  • 5+ years of professional frontend development experience
  • Strong proficiency in React
  • Strong proficiency in TypeScript
  • Appreciation of UX and the creative process
  • Solid grasp of modern CSS and responsive design principles
  • Knowledge of accessibility standards and inclusive design practices
  • Experience with test-driven development and frontend testing frameworks
  • Contributions to design systems or component libraries
  • Experience working with APIs and understanding backend services/system integrations
  • Comfortable with build tooling, bundlers, and CI/CD integration
  • Clear communicator and collaborative team member
  • Adaptable fast learner committed to staying current with frontend best practices
  • Full stack experience including backend/API development (Python)
  • Background in fintech or regulated industries

Monstro Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Monstro and has not been reviewed or approved by Monstro.

  • Healthcare Strength Healthcare is described as 100% employer-paid for individual medical, dental, and vision, with employer-paid life and disability insurance, signaling strong core coverage. Feedback suggests these elements are repeatedly highlighted in company materials and third‑party listings.
  • Leave & Time Off Breadth Flexible/unlimited PTO, paid sick time, and paid parental leave are consistently advertised, pointing to generous time-off policies. Observations indicate these benefits are positioned as standout perks for an early-stage startup.
  • Equity Value & Accessibility Compensation packages include competitive base pay paired with meaningful equity and role-specific incentives. Information suggests equity is a core component of total rewards across full-time roles.

Monstro Insights

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The Company
HQ: New York, New York
35 Employees
Year Founded: 2021

What We Do

Monstro is the financial intelligence system built for financial institutions. Most people don't have access to meaningful Financial Guidance. We're changing that. We give institutions the technology to guide every client through the decisions that shape their lives. That technology is Monstro's Financial Intelligence System. It helps institutions become the center of their clients' financial lives by delivering personalized guidance, powered by AI, governed by their rules, and controlled by their institution. That matters because a client's financial life is constantly changing. For every change, Monstro proactively creates a new opportunity to strengthen the relationship, across banking, lending, investing, cash flow, retirement, tax, insurance, estate planning, and the complex tradeoffs that connect them. Delivering guidance like this takes more than an AI model. It takes financial expertise, reasoning, governance, personalization, and continuous adaptation working together as a single system, configured to reflect each institution's own knowledge, policies, products, and approach to client relationships. Governance is what makes that system trustworthy: explainability, accountability, security, and institutional control are built into every interaction, so institutions maintain full oversight from start to delivery. With Monstro, institutions deepen client relationships, increase wallet share, and drive long-term growth. Named for the Latin monstrō: to reveal, to make clear, to instruct.

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