KOMOJU

• Generate new leads through online and individual research. • Profiling strategic accounts through research of their business demand for payment solutions. • Outreach via email/calls to the prospects. • Collaborating with sales and marketing team members on strategic sales approach. • Ensuring successful follow-through of the sales cycle by maintaining accurate activity and lead qualification information in the CRM tool.

Build your career at KOMOJU We’re always looking for talented engineers to help us redefine the fintech landscape. By joining our Tech Talent Community, you’re putting your profile directly in front of our Engineering team.

Role Description We are looking for a backend engineer to help us build our platform to handle payments on a global scale. You will primarily work with Ruby, building out features using Ruby on Rails (90% of tasks). As we’re still scaling our front-end team, you may be asked occasionally to work on front-end tasks as well (Less than 5% of tasks). Additionally, there will be tasks related to Monitoring, Observability, etc., which uses Terraform and DataDog (< 5%). - Typical tasks include adding new APIs for Front-end Interfaces in our Ruby on Rails application for customers to use. - Investigating bugs with our partners to ensure customer payments go through smoothly. - Improving our systems’ reliability and observability to ensure better health using Terraform. - Work with product managers to critically evaluate requirements and implement them in code. - Provide constructive feedback through code reviews and look at refactoring opportunities. - Receive mentoring support from managers and senior developers to help develop your skills. Qualifications - Experience working with large web applications. - Knowledge of building reliable and performant web applications. - Strong knowledge of testing and different testing types. Requirements - Build backend systems using Ruby on Rails stack. - Understand product goals and feature requests and translate them into working software. - Work on large technical projects from design through implementation and delivery as part of a team. - Ensure high-quality, reliable software - including thorough testing. - Strong experience building backend systems using Ruby on Rails in production environments (Ruby experience preferred, but candidates with solid experience in other backend web frameworks are also welcome). - Experience building scalable and performant web applications. - Solid understanding of relational databases and SQL. - Ability to design data models and system architectures. - Strong technical communication skills - including the ability to document decisions clearly and concisely. - Experience and understanding of common web vulnerabilities and how to mitigate them. - Understanding of software architecture, design patterns, and best practices. Nice to Haves - Experience with TypeScript, Vue.js, or React. - Experience with payments or payment systems. - Experience with integrating with third-party APIs in a secure and fault-tolerant manner. - Understanding of database performance characteristics and data access patterns. - Familiarity with Monitoring and Observability techniques and platforms such as DataDog. Benefits - 10 days regular vacation, additional 5 days summer, and 5 days winter vacation. - Paid birthday holiday. - Budget for self-learning allowance, to ensure our employees’ skills remain current. - Access to the O’Reilly Learning Platform. - Language training for Japanese/English. - Twice a week office lunch.