Careers in Crypto and Blockchain

Multicoin Capital
Multicoin Capital

Senior Backend Engineer



Software Engineering
San Francisco, CA, USA · Remote · United States
Posted on Thursday, February 23, 2023

Say hello to MobileCoin, the only sustainable payments platform that’s fast and simple enough for everyday private payments.

We’ve developed a fully private, distributed payments platform you can use every day to pay for anything while protecting your privacy and data. Though based on a cryptocurrency, the barrier to understanding, buying, and using crypto is huge for many, and we want to remove that barrier. It’s cryptocurrency designed to be used for secure payments, not to replace a currency, and we like to think it’s crypto that anyone can use. In a sense, MobileCoin is made for everyone.

MobileCoin is a private payment system that works directly with messaging apps on your phone or desktop. We want to empower each individual with the tools they need to communicate and connect. Through our encrypted blockchain payment system, MobileCoin gives you the ability to transact in private. In a world where your personal data is seen as a commodity, we believe that privacy should be a choice, and we choose to help protect that choice.

We are passionate about developing world-class products and software which maintain unprecedented user privacy while delivering the next-generation digital payments platform. We believe that career fulfillment and enterprise success converge when smart, hard-working, and intellectually curious people come together with a shared goal of innovation, and the pursuit of excellence.

Your Role:

We are looking for a Senior Backend Developer to join our team! As a backend engineer, you will work on our services that power our payment and financial solutions. This is a rare opportunity for an experienced technologist to join a well-positioned team at an early stage to deliver immediate, measurable and long-lasting impact. You will gain exposure to many aspects of developing and deploying leading-edge cryptographic and financial primitives and work alongside individuals with proven experience building some of the most innovative blockchain technologies in the world.


  • Design, develop, and test new backend services using Kotlin, including APIs, data storage, and business logic
  • Maintain code quality and ownership of existing backend systems
  • Collaborate with product owners and the rest of the engineering team
  • Review and shape user experience based on backend capabilities and designs
  • Communicate with the company's partners to help integrate MobileCoin

Required Skills, Qualifications and Experience:

  • Minimum 5 years of backend software engineering experience
  • Experience with backend development, ideally in Kotlin, Java, Rust, Go, Python, or Ruby
  • Experience in API design + performance optimization
  • Experience with SQL and databases + ORMs
  • Experience with automated software testing + continuous integration and deployment
  • Experience delivering reliable, highly observable systems at scale

Preferred Skills, Qualifications and Experience:

  • Experience with static languages such as Rust, Kotlin or other JVM languages
  • Experience with gRPC
  • Understanding cryptocurrency space
  • Understanding of cryptographic concepts: (a)symmetric cryptography, hashing, signatures
  • Experience with developing libraries/SDKs
  • Experience developing in PII-sensitive environments


Location: Open to remote candidates in the US

MobileCoin Inc. is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will receive considerations for employment without regard to race, color, religion, sex, age, disability, marital status, familial status, sexual orientation, pregnancy, genetic information, gender identity, gender expression, national origin, ancestry, citizenship status, veteran status, and any other legally protected status under federal, state, or local anti-discrimination laws.

Colorado, New York, Washington, and California Pay Law

The target annual pay range for this position in Colorado, New York, Washington and California can range from $160,000 to $200,000 + target bonus + target equity + benefits (including medical, dental, vision and 401k), however, base pay offered may vary depending on skills, level, experience, job-related knowledge and location.