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Backend Engineer - MetaMask; API Platform

Job in Toronto, Ontario, M5A, Canada
Listing for: Consensys
Full Time position
Listed on 2026-02-23
Job specializations:
  • IT/Tech
    Blockchain / Web3
Salary/Wage Range or Industry Benchmark: 155000 CAD Yearly CAD 155000.00 YEAR
Job Description & How to Apply Below
Position: Backend Engineer - MetaMask (API Platform)
Join to apply for the Backend Engineer - Meta Mask (API Platform) role at Consensys.

Our mission is to unlock the collaborative power of communities by making Web3 universally easy to use, access, and build on.

Working with Consensys puts you at the forefront of an evolving paradigm, transforming our society for the better. We fundamentally believe blockchain is the next generation of technology that can lay the foundation for a more just and equitable society.

Blockchain tech is just over 10 years old. Ethereum itself is still a toddler and we’re far from reaching our full potential. You’ll get to work on the tools, infrastructure, and apps that scale these platforms to billions of users.

You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects – challenging you to stay at the top of your game. You’ll join a network of entrepreneurs and technologists 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
Meta Mask 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 Meta Mask is an experience that catalyzes career growth and learning.

About

The Role
We are looking for backend Node.js developers with production applications experience to work with our API Platform team. This team builds the backend APIs for use across all Meta Mask platforms, both directly by Meta Mask clients as well as other backend APIs that power the product experiences within Meta Mask. API Platform services include a Price API, Token API, Account API, NFT API, and more.

Required Skills

3+ years of experience as a Backend Software Engineer working on production applications

Experience with Node.js back‑end development (preferably Typescript)

Experience with , or understanding of:
PostgreSQL

Experience working on agile projects in an Agile environment

Experience working in CI/CD setup

Experience working in a distributed, remote team environment.

Excellent communication skills.

Writing good technical documentation.

Bonus Points

Experience as a Team Lead or Tech Lead or leading features

Experience working with third party vendors, in particular financial institutions, neobanks, and web3 companies

BSc/MSc in Computer Science or related subject

Experience in Typescript

Experience with microservices architectures

Understanding of blockchain technology, especially Ethereum

Blockchain / smart contract development:
Solidity / Ethereum, Web
3.js or Ethers.js library

General interest in Dev Ops topics / experience with Docker and/or Kubernetes and deploying cloud infrastructure (AWS / Azure)

Experience in deploying blockchain infrastructure

Working knowledge of Observability stacks Prometheus, Grafana

Other skills to demonstrate

Excellent verbal and written communication in English

Teamwork, flexibility, initiative, communication and organization

Willingness to constantly learn & improve, challenging yourself to stay at the top of your game

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…
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