Rust/Scala Engineer $$$$

On behalf of our Client from Japan, Mobilunity is looking for a Rust/Scala Engineer.

Our Client is a fast-growing fintech company based in Tokyo. The company offers its real-time monthly consolidated credit service all across Japan. They started Japan’s first instant post-pay credit service for e-commerce customers in October 2014. The main product is an online payment platform which requires no pre-registration or credit card to use; via this service the customers can purchase products online using only a mobile phone number and email address and settle a single monthly bill for all their purchases, either at a convenience store, by bank transfer or auto debit. Customers can use credit funds during a month and then return the balance to zero without paying credit interests.

This service also supports multi-pay installments and subscriptions. There are currently over 4 million accounts in use. This service got the largest investment to date in the Japanese financial tech industry, including PayPal Ventures investment.

Our tech stack includes:

• Docker-based microservices written in the Rust Programming Language (main)
• and Scala Programming Language (additional)
• AWS Services (fargate, RDS, lambda) with PostgreSQL DB, Cassandra, and
• DynamoDB
• Circle CI + terraform provisioning and deployment
• MacOS development environment
• HTTPS, SSL, X.509, and other secure technologies for secure communications
• HTTP REST and GraphQL APIs (JSON data)
• Kafka Message Queueing

Key Role and Responsibilities:

• Design and Implementation of features and bug fixes, primarily in Rust
• Some design and implementation of features in Scala
• Work within the team to collaborate and cooperate on designs and implementations
• Help mentor junior engineers
• Accept feedback and learn new skills; use the opportunity to be mentored by others to grow as an engineer
• Display personal leadership responsibility and strong work ethic

Requirements:

• Knowledge of Software Engineering fundamentals (data structures, networking, computer architecture, CS theory basics, etc.)
• Ability to learn and understand new software engineering concepts quickly with some guidance/mentorship
• Ability to learn from own sources given a target technology
• At least 5 years of backend development in multiple modern programming languages (Java (excluding Spring or SpringBoot), Rust, Scala).
• Experience with designing software both from the ground up and making changes to existing applications (OO-design, Microservices, functional design, DDD, Domain/Protocol separation, etc.)
• Knowledge of systems development and operations (Docker, Redis, SQL DBs, AWS, Source-control, CI/CD systems, etc.)
• Basic understanding of functional programming paradigm and methodologies
• Level of English – Upper-Intermediate and higher

Good to have:

• Experience working on a payment platform or other fintech field

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the broadest variety of modern technologies
• Mobilunity Medical Insurance program designed to attend our teams’ needs
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note
• Perfect office location in the city-center (900 m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones
• English classes in 1-to-1 & group modes with elements of gamification
• Neverending fun: sports events, tournaments, music band, multiple affinity groups

Come on board, and let’s grow together!