Front End Developer - JavaScript, Node.JS, React and GraphQL

New Yesterday

Who are we? IOG is a technology company focused on blockchain research and development. We are renowned for our scientific approach to blockchain development, emphasizing peer‑reviewed research and formal methods to ensure security, scalability, and sustainability. Our projects include decentralized finance (DeFi), governance, and identity management, aiming to advance the capabilities and adoption of blockchain technology globally.

What the role involves

As an experienced Front End Developer, you play a key role in ensuring delivery of IOG’s web assets – a key means by which the public interact with our products and the efforts of the business as a whole. Beyond just being an efficient way of accessing information, we want our sites to represent the best in class for their design and build – a reflection of the products we create. You will join a strong team operating on a Jamstack set‑up consisting of Gatsby, GitHub and Netlify CMS. You should be well versed in these technologies as well as JavaScript, Node JS, React and GraphQL.

  • Build reusable, well‑commented code and libraries for future use
  • Optimize code for maximum speed and scalability
  • Contribute to process, tooling and workflow improvements
  • Work with marketing, design & content teams as well as product management to realise and improve upon vision for a project as it is deployed public
  • Work with QA to ensure builds are compliant with agreed test cases & standards
  • Implement site builds in accordance with current IOG technical stack (Next.js and headless CMS driven static site generation)
  • Deliver project deliverables to agree upon deadlines
  • Collaborate with the rest of the Web Development team to share best practices & assist with project delivery
  • Maintain deployed assets post launch
  • Use work tracking software (Jira, Slack)

Requirements

  • Completion of a relevant degree such as Computer Science or Software Engineering
  • Experience working in a fast‑paced environment where you regularly ship public‑facing web assets
  • Experience working as part of a team, often on parts of a larger project and collaborating with others
  • Expert level understanding of JavaScript
  • Expert level of React and passion for the React ecosystem
  • Strong knowledge of JS ecosystem, such as NPM, Node JS, and Jamstack
  • Expert skills in HTML / CSS / LESS / SASS
  • Well‑versed with Git workflows
  • Proficient in cross‑browser and cross‑device compatibility and how to build responsive, mobile‑first layouts
  • Good understanding of SEO principles
  • Capable of thriving in fast‑paced, evolving environments—adept at managing shifting priorities and consistently meeting tight deadlines
  • Excellent communication skills with the ability to articulate complex technical concepts to both technical and non‑technical team members
  • Composed and focused under pressure, with a thoughtful and methodical approach to high‑stakes problem solving
  • A keenness to learn and share your knowledge with the team
  • Working with UX/Design teams as well as good understanding of design principles
  • Basic knowledge of image and design editing tools (e.g., Sketch, Photoshop, Zeplin)
  • Self‑motivated, independent thinker with a proactive approach to problem‑solving and continuous improvement

Benefits

  • Remote work
  • Laptop reimbursement
  • New starter package to buy hardware essentials (headphones, monitor, etc)
  • Learning & Development opportunities
  • Competitive PTO and Sick Leave plan

At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Location:
United Kingdom
Salary:
£80,000 - £100,000
Job Type:
FullTime
Category:
Consulting