Senior Frontend Developer

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Senior Frontend Developer

90 Percent of Everythingis looking for Senior Frontend Developer to join team in Kyiv on full-time basis.

Our goal is to revolutionise shipping by creating a suite of comprehensive software solutions for the Maritime industry. Our journey begins now. Over the next couple of years, our teams and squads will build more than 30 products from the ground up. This includes everything from global vessel tracking to vessel performance analysis, crew optimization and so much more. This is an exciting and challenging opportunity to apply cutting-edge technology to revolutionising an iconic industry.

Introduction to 90PoE

Our tech stack consists of React and React Native applications communicating using GraphQL to microservice containers orchestrated by Kubernetes. Internally our services use gRPC for communication and achieve high scalability thanks to a Kafka based event driven architecture and persist data to a mix of RDBS and No-SQL databases including PostgresDB, MongoDB, S3 and Elasticsearch. We follow modern CI/CD and agile methodologies to deploy into production multiple times per week.

What’s in it for you

  • Working with latest cutting-edge technologies
  • Disrupting a century old industry in a startup environment
  • Opportunity to grow and develop your core skills
  • Deliver a green field system
  • Work with a diverse multicultural team in an agile environment
  • Variety of knowledge sharing and self-development opportunities
  • Competitive salary
  • Great officewith warm atmosphereandgreat working conditions
  • Opportunity to travel to HQ office in London
  • Experience firsthand the squad-chapter-guild workflow model, our version of the Spotify model


  • As a member of the squad, you will be developing React applications for web.
  • Follow modern JavaScript and TypeScriptbest practices to deliver and support production ready industry quality code.
  • Responsible for full lifecycle of applications. Developers will take the applications they build from design, through implementation and into production.
  • Passionate about delivering a consistent user experience across the platform.
  • Continuous improvement of all development and deployment processes.
  • Contribute to developing and maintaining a core UI component library.
  • Successful delivery of your applications into production.
  • Work closely with designers to ensure delivery of the vision.
  • Regular and clear communication of progress to the squad product owner and technical lead.


  • Full hands-on technical experience
  • Proficiency in:
    • JavaScriptcore and TypeScript
    • React
    • Data structures and algorithms
    • GraphQL using React Apollo
    • Data visualisations (I.e. charts via Highcharts)
    • Global state management
    • Software Design of loosely coupled reusable components
    • Unit testing with Jest
    • Applying web performance and networking best practices
    • CI/CD practices
    • Advanced use of git
  • General knowledge about:
  • Styled Components or equivalent
  • System testing with Cypress
  • Microservices architecture concepts
  • Container based architecture: Docker
  • Nice to have: -Exposure to concepts of functional programming
  • Ability to perform basic DevOps tasks

Past experience

  • Deliver features autonomously with a high degree of team coordination
  • Deliver code based on precise architecture spec
  • Deliver code without relying on precise architecture spec
  • Automated testing
  • Working with CI/CD practices
  • Delivering code to production
  • Maintaining production ready code
  • Collaborating in small but fast paced teams
  • Event driven architecture and message passing

More about you

  • Good level of English
  • Willingness to learn and open mind about new technologies
  • Confident to operate in a fast-paced environment
  • A collaborative approach and willingness to engage in an environment of active idea sharing
  • Ability to learn autonomously
  • Excellent all-round communications skills

How to apply?

If you are interested – please send your CV to OpenOcean Careers

Come and join us in transforming one of the oldest global industries

Submit your CV