Backend Engineer

Key Requirements

• Proficiency in English, with great interpersonal skills
• 2+ years of professional experience with NodeJS / typescript OR 3 years of experience in JAVA, C#, C++, and similar OO language
• Experience in server/client side JS (NodeJS, ExpressJS, Typescript)
• Experience with SQL/NoSQL databases
• Experience building large-scale distributed systems
• Strong object-oriented design and development experience
• Knowledge of the principles to construct fault-tolerance, reliability, and durability software systems
• Experience building microservices and designing REST APIs
• Experience with message brokers

It's great if you also have:

• GCP and/or AWS experience
• Experience with Kafka
• Experience deploying microservices with docker, kubernetes
• Experience with CI/CD using Gitlab-ci
• Experience with some aspect(s) of computer security: network security, application security, security protocols, cryptography, etc...)
• Previous experience with Java or Python
• Previous experience with Blockchain

What you will do:

• Your challenges
All our services require highly scalable server architectures (+1mil concurrent user) where blockchain will ultimately impact all our infrastructural choices. Ultra could be considered as a multitude of smaller sub-projects, each having its own team leader. Your ability to advise and collaborate with multiple sub-teams simultaneously will define our project's success. You will work with offices all around the world, working remotely will be part of your daily routine.


Your tasks
Design, implement, test, document and deploy backend services in the cloud. As a member of a feature team, you will be responsible for your services running in production and will ensure their availability, elasticity and resilience. You will contribute to the design and architecture to enable secure, scalable and maintainable software. You will develop reusable patterns and encourage innovation that will enable team velocity. You will take part in the team's scrum rituals. You will develop documentation on the new built system.


At Ultra, you will:
Learn every day and be involved in many exciting projects. Have the opportunity to grow with an ambitious and fast-paced company, on an innovative market. Have a lot of autonomy to put into practice what you advise, to set up new processes, and to share and implement your ideas with the team. Join an enthusiastic team and take part in Ultra's international expansion. Work with passionate colleagues in a multicultural, open-minded environment

What's next

• If we select your application, you will start our interview process:
• Meet Anastasiia, Tech Recruiter
• Take our coding test
• Meet Hugo, our Head of Engineering, and Koffi, our Lead Backend Engineer
• Meet members of your squad