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Senior Full Stack Engineer

Remote

About Monstro

Monstro is an AI-native fintech platform reimagining how people and institutions manage money. We’re building a modern foundation for financial decision-making—combining intelligence, automation, and elegant design to help users make smarter choices with confidence.
Our team includes experienced builders from leading fintech, wealth management, and technology companies, united by a shared goal: to create a category-defining product that transforms how financial insight is delivered and acted on.

Senior Full Stack Engineer

About Monstro

Monstro is democratizing a level of personal financial service that has, up until now, only been accessible to the elite. Headquartered in New York City, we're an AI-enhanced fintech company redefining personal finance management through a global financial platform. For individuals, our platform provides a comprehensive view of their financial, legal, and tax life—delivering actionable insights, tailored recommendations, and the ability to take direct action.

About the Role

Monstro is hiring a Senior Full Stack Engineer with a backend focus to help build and scale the client-facing systems that power our platform. This role owns critical backend services that handle sensitive financial data, where reliability, security, and performance are essential.

What You'll Do

Backend Engineering

  • Design, build, and maintain backend services that power Monstro’s consumer experience
  • Work across our stack (Python, Node.js, and Java), selecting the right tool for each problem
  • Build robust APIs serving mobile and web clients while integrating with financial institutions and third-party services

System Architecture & Scalability

  • Architect systems that scale gracefully as our user base grows
  • Identify bottlenecks and implement caching strategies (Redis, CDN, application-level caching)
  • Optimize query performance and tune container-based applications
  • Design for resilience with failover strategies, retry logic, and graceful degradation

Infrastructure & DevOps

  • Containerize and orchestrate services using Docker and Kubernetes
  • Collaborate with platform teams on infrastructure decisions
  • Contribute to CI/CD pipelines and ensure smooth, reliable deployments
  • Understand and work across the full SDLC, from local development through production observability

Data & Integrations

  • Work with relational and NoSQL databases, partnering with data engineers on schema and data models
  • Build integrations with banking systems, payment processors, and financial data providers
  • Implement event-driven architectures and message queues where appropriate

Security, Quality & Team Collaboration

  • Build systems with security as a first-class concern, including authentication, authorization, encryption, and audit logging
  • Ensure systems meet fintech regulatory and compliance requirements
  • Guide and develop junior and mid-level engineers through code reviews, pairing sessions, and technical coaching
  • Partner closely with frontend engineers, product managers, and designers to deliver cohesive features
  • Participate in architectural discussions and incident response, contributing to a culture of continuous learning and technical excellence

What Success Looks Like

  • Backend systems reliably support a growing consumer user base with minimal incidents or regressions
  • Sensitive financial data is handled securely, correctly, and in compliance with regulatory requirements
  • APIs and services are well-designed, performant, and easy for mobile and web clients to consume
  • Infrastructure and deployment processes enable safe, frequent releases
  • Junior and mid-level engineers are unblocked, supported, and improving through mentorship and collaboration

What We’re Looking For

  • 7+ years of professional software engineering experience
  • Strong proficiency in at least two of the following: Python, Node.js, Java
  • Hands-on experience with Docker and Kubernetes in production environments
  • Solid understanding of the full SDLC and modern development toolchains
  • Experience scaling and performance-tuning container-based applications
  • Strong understanding of caching patterns and strategies
  • Familiarity with API design, microservices patterns, and distributed systems
  • Experience with test-driven development and test automation
  • Familiarity with cloud platforms such as AWS, GCP, or Azure
  • Clear communicator who takes ownership, moves with urgency, and is passionate about building high-quality software

Why Monstro?

  • Ownership & Impact: Shape the future of AI-powered finance—building a category-defining product used by consumers and institutions around the world.
  • Elite Team: Join a team with leadership that has a track record of scaling companies from early stage to major exits.
  • Principles-Driven Culture: Work in a culture that values speed, ownership, and impact—what most companies achieve in 90 days, we do in 45.
  • Comprehensive Compensation Package: Competitive salary, equity, and robust benefits package, including paid health, vision, dental, and disability coverage.
    • Compensation Range (New York City): $162,000 - $190,000
    • Compensation Range (Denver Metro): $142,000 - $177,000
      *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.

Ready to Build With Us?

If you’re excited to contribute to a high-bar team building something meaningful, we love to hear from you!

 

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