Senior Full-Stack JavaScript Software Engineer at Flexhire

Published 7 months ago

Key responsibilities

  • Work as part of an engineering team in an agile environment, collaborating with engineers and designers from concept to delivery

  • Work with the product owner to translate business requirements into technical requirements and API specifications

  • Develop automated testing plans and infrastructure

  • Execute on a software architecture and development plan to bring products to life

  • Propose novel solutions to design and technical challenges

  • Develop all software according to coding standards and processes, which you also help define

  • Perform review of other engineers’ code

Ideal experience

What we look for

  • Excellent written and verbal communication skills, including professional-level competency in English

  • A proven track record in building and maintaining complex distributed applications

  • Strong experience with relational databases, document or key-value stores and domain-driven design

  • Experience with cloud infrastructure providers and continuous delivery

  • Can write performant, fault tolerant and secure server code

  • Can show strong understanding at an architectural level of large systems in which you played a key role

  • Have shipped software over multiple releases as a technical lead in a strong team

  • Familiarity with modern standards like OAuth, JWT, websockets, and service-oriented architecture

  • Strong collaborator, transparent about progress on tasks

  • Seeks feedback early and often and works effectively with a team

  • Can deliver on engineering estimates


  • 5+ years professional software development experience

  • Minimum 4 years production experience with modern JavaScript (ES6, TypeScript, etc.)

  • Advanced knowledge of React and Node.js

  • Minimum 3 years experience building and maintaining back end web services in a production context, in a cloud-based environment (e.g. Heroku, AWS) 

  • Minimum 2 years experience working with PostgreSQL or another relational database in production

  • Minimum 2 years experience designing, building and maintaining APIs in a production environment

  • Prior experience with GraphQL

Nice to have

  • Proficiency with a back-end JS framework (e.g. Express, Koa, Hapi) and ORM (e.g. Sequelize, TypeORM)

  • Experience in building web applications with Apollo Client and Apollo Server

  • Experience with Gatsby and single page web applications

  • Experience in working with UI component libraries and toolkits such as Material UI, Theme UI, Styled System, Rebass, etc.

  • Experience in testing JS applications with Jest, Cypress, and/or CucumberJS

  • Experience in building and shipping React Native applications

  • Native iOS or Android development experience

  • Prior experience in startups as a software engineer

  • Evidence of open source contributions

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