Position: Senior backend Engineer/Tech Lead
Company: WorkNest Technologies
Experience required: 3y
English level: intermediate

ZenGo is the crypto wallet for everyone.
Buy, trade, and earn BTC, ETH, and more with unbelievable simplicity. Bulletproof security & legendary customer support.
They're building the next-gen economy and future of finance. Backed by top investors, and based in the center of Tel Aviv.

**Requirements:**

• At least 5 years of development experience
• At least 3 years experience in developing on a cloud platform, preferably AWS
• Strong background in cloud architecture and services, preferably AWS
• At least 3 years of experience developing Node.js applications
• Experience with serverless and microservices architectures
• BS in Computer Science, or similar
• Proficiency in JavaScript (preferably TypeScript)
• Knowledge of core CS concepts such as data structures, algorithms, profiling and optimisation
• Experience building REST APIs 
• Good working knowledge of large systems and complex architectures

**As an advantage :**

• Highly desired: Experience with blockchains development
• Experience with large-scale B2C applications
• Familiar with the Linux work environment
• Experience with software security and cryptography (e.g. elliptic curves, SSL, OAuth)
• A detail-oriented approach to writing tests and quality assurance
• Front-end experience (preferably React)

**What You'll Be Doing:**

As ZenGo’s back-end software engineer, you will be part of a team of experienced engineers responsible for delivering high-impact technology for our system’s backend and building complex features for the ZenGo keyless cryptocurrency wallet, already enjoyed by a loyal base of users around the globe.  You will also utilize sharp problem-solving and creative skills to help us build, test, deploy and optimise new technologies.