Staff Software Engineer – MetaMask (Money Movement)

Remote from: USA, Canada +1 more, LATAM
Salary, yearly, USD: 146,000 - 218,000
Department: Software Engineering
Employment type: Full Time,
Job posted: 10 Jun 2026
Apply before: 10 Jul 2026
Experience level: Senior
Views / Applies: 113 / 26

A global blockchain company focused on building and scaling tools and enterprise software products powered by Ethereum.

Computer Software
2014

AI Summary

This role is for a Staff Software Engineer at Consensys, the leading blockchain and web3 software company, specifically for the MetaMask Money Movement team. The position involves leading technical direction for fiat-to-crypto features, mentoring engineers, and building secure, scalable systems. The role requires strong experience with TypeScript, Node.js, React Native, and modern web technologies, along with a track record of setting technical direction. It is a fully remote, globally distributed team focused on building the next layer of the internet. The ideal candidate has fintech or payments experience and strong collaboration skills.

Role DNA

Job Complexity

Easy Hard

Pace & Pressure

Relaxed Fast-paced

Autonomy Level

Guided Full Ownership

Communication Load

Independent Highly Collaborative

AI Insight This is a Staff-level role requiring 5+ years of experience, leadership of a team, and technical direction setting for complex systems in a fast-evolving blockchain and fintech domain, making it the highest difficulty level.

Salary Analysis

AI Insight The offered salary range of $146,000-$218,000 is competitive for a Staff Software Engineer in the US market, with a midpoint of $182,000 aligning well with typical compensation for senior engineering roles in blockchain and fintech.

Key Skills

Blockchain Web3 TypeScript Node.js React Native Fintech Payments Mentoring Distributed Systems Security

Cover Letter Sample

I am excited to apply for the Staff Software Engineer position on the MetaMask Money Movement team at Consensys. With over 5 years of full-stack and backend engineering experience, I have a proven track record of setting technical direction and leading cross-functional teams to deliver complex, revenue-generating features.

My expertise in TypeScript, Node.js, and React Native, combined with deep experience in fintech and payments infrastructure, makes me well-suited to build secure, scalable systems for fiat-to-crypto flows. I am particularly drawn to Consensys's mission to make the decentralized web accessible to all.

I thrive in remote-first, collaborative environments and am passionate about mentoring engineers and fostering a culture of high code quality and innovation. I look forward to the opportunity to contribute to MetaMask's growth and help shape the future of money movement in Web3.

Possible Interview Questions

Describe a time you had to make a difficult architectural decision for a payment system. What trade-offs did you consider and what was the outcome?

At my previous job, we were building a real-time payment processing system. I had to choose between a monolithic approach for simplicity and a microservices architecture for scalability. I chose microservices to handle high transaction volumes, but we invested heavily in monitoring and circuit breakers to manage complexity. The outcome was a system that scaled to handle a 10x increase in transactions with 99.99% uptime.

How would you approach mentoring a junior engineer who is struggling with understanding the complexities of blockchain and payment integrations?

I would start by assessing their current understanding and then pair them with a simpler, well-documented component of the payment flow. I'd schedule regular one-on-one sessions to review their work and answer questions, gradually increasing the complexity. I'd also encourage them to participate in design discussions and code reviews to learn from the team. Providing clear, incremental goals helps build confidence.

What strategies do you use to ensure the reliability and observability of distributed systems handling financial transactions?

I implement comprehensive logging, monitoring, and alerting using tools like Datadog or Prometheus. I design systems with graceful degradation and fallbacks for third-party API failures. I also conduct chaos engineering experiments to test resilience. For transaction integrity, I ensure idempotency and implement compensating transactions for rollbacks. Regular post-mortems help continuously improve reliability.

Can you explain how you would design a feature to allow users to buy cryptocurrency with fiat currency, integrating with multiple payment providers?

I would design an abstraction layer for payment providers, defining a common interface for API calls and webhooks. The core logic would handle user authentication, check compliance (KYC/AML), and initiate transactions. I'd use a state machine to track transaction statuses and ensure idempotency. Each provider integration would be a module, allowing easy addition of new providers. The system would include rate limiting, fraud detection, and fallback to alternative providers if one fails.

How do you stay current with the rapidly evolving Web3 and blockchain ecosystem, and how have you applied new knowledge to your work?

I follow key developers and projects on Twitter, read whitepapers, and attend conferences like Devcon. Recently, I learned about account abstraction (EIP-4337) and proposed integrating it into our wallet to improve user experience by eliminating seed phrases. I led a proof-of-concept that reduced onboarding friction by 30%. I also contribute to open-source projects to deepen my understanding and share knowledge with the community.

Consensys is the leading blockchain and web3 software company. Founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum in 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem.

The financial system is being rebuilt on open, programmable infrastructure, and Consensys is helping power that transition. From MetaMask, the platform trusted by tens of millions of users worldwide, to Linea, the only 100% proven zkEVM rollup and an emerging home for institutional ETH capital, Consensys builds products and infrastructure that enable users, developers, and institutions to participate in the next generation of the internet.

Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on.

Joining Consensys means working with a fully remote, globally distributed team of technologists, designers, cryptographers, product thinkers, and researchers who are building the next layer of the internet. You’ll be exposed to new ideas, emerging technologies, and complex challenges that push you to stay at the top of your game while helping scale products and infrastructure used by tens of millions of users and thousands of developers across the web3 ecosystem. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies.

About MetaMask

MetaMask aims to create a thriving engineering organization that supports the well-being of our engineers while empowering them to do work they are proud of and enjoy. We strive for an environment that gives our people high trust and autonomy, while also facilitating collaboration, communication and camaraderie among teams and teammates. We aspire to build a diverse engineering team, inclusive to people from all backgrounds and demographics. It is also of great importance to us that working at MetaMask is an experience that catalyzes career growth and learning.

What you’ll do

As a tech lead on the Money Movement team, you will:

Lead the technical direction and execution of fiat-to-crypto features and infrastructure.
Guide and mentor a team of junior and mid-level engineers (across backend, frontend, desktop, and mobile).
Build secure, scalable systems that connect users to third-party payment service providers( and payments infrastructure.
Collaborate with product managers, designers, data analysts, and engineers from across MetaMask to ship cross-platform features.
Maintain high code quality through design discussions, reviews, testing, and documentation.
Help ensure the reliability, observability, and performance of the Money Movement services.
Own architectural decisions that affect revenue-generating user flows.
Partner with mobile and extension platform teams to create unified, seamless money movement experiences.

Would be great if you brought this to the role

5+ years of full-stack or backend engineering experience, including demonstrated success in a Staff (or equivalent) role.
A track record of setting technical direction and driving impact across a team or organization — not just shipping individual features.
Strong experience with TypeScript, Node.js, React Native and modern web technologies.
Demonstrated experience leading projects across multiple workstreams, mentoring engineers, and making architectural decisions across web, iOS, and Android applications.
Experience in fintech, payments, or financial services is strongly preferred.
Familiarity with payment infrastructure, APIs, and 3rd party integrations.
Ability to think critically about edge cases, system security, and failure modes.
Strong collaboration and communication skills, especially in remote-first teams.
Experience working in agile environments with cross-functional teams.
Commitment to clean code practices, testing, and maintainable software.

Bonus Points

Experience working on fiat on/off-ramp systems, DeFi, or financial infrastructure.
Understanding of Web3 fundamentals, wallets, and the MetaMask ecosystem.
Familiarity with mobile-first development and cross-platform architecture.
Interest in performance optimization, observability, and long-term system health.

Don’t meet all the requirements? Don’t sweat it. We’re passionate about building a diverse team of humans and as such, if you think you’ve got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter. While we have a pretty good idea of what we need, we’re ready for you to challenge our thinking on who needs to be in this role.

It is a requirement of employment in this position that applicants will be required to submit to background checks including but not limited to employment, education and criminal record checks. Further details will be provided to applicants that successfully meet the criteria for the position as determined by the company in its sole discretion. By submitting an application for employment, you are acknowledging and consenting to this requirement.

The salary range for US-based candidates only will be determined throughout the interview process depending on experience and skills.

US pay range (not including bonus, equity or other benefits)

$146,000—$218,000 USD

In the rapidly evolving Web3 space, we believe that everyone is a builder. This expansive paradigm requires a range of backgrounds, talents, skills, and experiences to influence and shape the future. At Consensys, this diversity fuels our ability to shift control and redefine the realm of possibility. We are committed to ensuring that our technology empowers people and communities with economic and political agency through decentralized technologies. We welcome the range of perspectives and differences and celebrate them. We’re excited to see how your unique skills as a builder can contribute to our vision, drive innovation, and help us shape a more inclusive Web3.

Consensys is an equal opportunity employer. All employment decisions are made without regard to race, color, national origin, ancestry, sex, gender, gender identity or expression, sexual orientation, age, genetic information, religion, disability, medical condition, pregnancy, marital status, family status, veteran status, or any other characteristic protected by law. Consensys is aware of fraudulent recruitment practices and we encourage all applicants to review our best practices to protect yourself which can be found (https://consensys.io/careers/best-practices-to-avoid-recruitment-fraud/).

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