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Senior Web Developer (Platform - Javascript)

Premium Job From Genesis
Recruiter: Genesis
Listed on: 25th October
Location: London
Salary Notes: Competitive + Benefits
Type: Permanent
Start Date: ASAP

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Genesis is a global software company with a pioneering vision, technical innovation, and team that is changing IT delivery. Permanently. We've just completed our Series B funding round, backed by Accel, GV (formerly Google Ventures), Salesforce Ventures, Citi, Illuminate Financial and Tribeca Early Stage Partners and due to growth, we're recruiting now for a Senior Web Developer. Interested? Read on to find out more.


What are we looking for?

We are currently recruiting for an Senior Developer to join our Platform team at an exciting time of our rapid expansion. Reporting to the VP of Web Development, our vision is to create a world class platform for our clients.

This is a very technology focused role requiring an understanding of the browser, messaging patterns, good software architecture and a desire to create a high-performance framework that is easy for Product Developers and clients to use. The role is very varied and covers all aspects of technology with a focus on parallel processing, speed, reliability, scalability, and distributed processing.

The Genesis Web Stack:

Please note that we DO NOT use traditional web frameworks here at Genesis, such as React, Angular, Vue etc. We use standards-based Web Components, a.k.a Custom Elements. Web Components are literally, the standard component model of the web, written into the HTML specification. This approach coupled with a variety well defined design patterns, we can not only build components, but entire apps that are future proof and interoperable. Did you know you is a web component? You can read more about our Web Strategy in our documentation.

Our web stack consists of:

  • Lerna (Monorepo management)
  • TypeScript
  • Web Components build on top on Microsoft FAST
  • Design Systems (Styling our base web components, multiple design system variants, design tokens)
  • CSS + CSS Variables
  • Dependency Injection
  • Micro Frontends (Composed small UI sections, WP5 Module Federation)
  • App Shell / Composite Apps (Schema / config-based app definitions)
  • Top level router with lazy loading
  • Custom CLI (Codegen)
  • WebPack (Apps bundling and WP5 Module Federation)
  • Rollup (Lib bundling)
  • CustomEvents, RxJS, Broadcast Channel API, FDC3
  • Playwright E2E, custom Unit testing setup
  • Storybook
  • Electron
  • ESLint & Stylelint
  • Github repos, actions, packages
  • etc.

How you'll play your part

  • Design and implementation of common web components, services, utilities, APIs etc, used throughout the genesis platform
  • Working iteratively and collaboratively with end-users and across development and design teams
  • Synthesizing product requirements, technology constraints, and strategic considerations into effective designs and plans for execution
  • Close attention to quality, performance, and timeliness in delivery
  • Awareness of trends and developments in web and other technologies
  • Mentoring, code reviews, communicating, and otherwise leading in your areas of expertise
  • Initiative and ownership in continuously improving the quality and capabilities of the platform and processes of the engineering team


The experience you'll bring

We require highly capable frontend engineers with proven track records working in agile engineering teams on fast paced commercial projects, ideally within the financial industry, but knowledge of the financial industry / banking experience is NOT a prerequisite. You should be a natural problem solver with a passion for staying at the forefront of web technology. Requirements include:

  • SDLC pipelines
  • Agile environments
  • Multiple web frameworks (React, Angular, Vue, etc.)
  • TypeScript
  • JavaScript
  • HTML5
  • CSS
  • NodeJS and NPM
  • Working with Design Systems
  • REST
  • WebSockets
  • RXJS
  • Ag-Grid
  • Testing strategies
  • Understanding of design patterns
  • Highly motivated
  • Strong problem solving and analytical skills
  • Good communication and interpersonal skills

Preferred skills and experience

  • Comfortable working outside of a web framework
  • Deeper understanding of the browser and web technology
  • Native web components
  • Microsoft FAST
  • JavaScript ES8+ (async await)
  • CSS-in-JS
  • AWS
  • Lerna (Monorepo setups)
  • Webpack
  • Rollup
  • Electron
  • Microservice architecture and containerisation
  • Java / Kotlin
  • Financial markets exposure
  • Real-time high-frequency low-latency systems
  • Github repo and / or an open-source contributor
  • Avid learner
  • A love of documenting and explaining your work

Other Information

What a role with Genesis offers

  • 25 days holiday + 8 days bank holidays
  • Private Healthcare
  • Pension Plan
  • Company Bonus Plan
  • A tailored personal development and training programme.
  • Autonomy. Trusted and empowered to deliver and be your best.

Think you can help us change the FinTech industry? Apply now and we'll be in touch once we've reviewed your CV.

We are only accepting applications from candidates directly. Given application volumes, we do not require approaches or CVs from recruitment agencies.

Genesis - Code Less, Do More

About Us

We are technology pioneers with a clear purpose of being the Low-Code Application Platform (LCAP) for financial markets - changing IT delivery across the entire industry. We work faster, harder and smarter than the competition so that we can solve some of the biggest and most complex challenges to deliver innovation and digital transformation.

We value every one of our employees and everyone in the company makes a difference. The diversity of our people makes us who we are and we work hard to make everyone feel included, no matter your background. Come join and be part of the Genesis family of pioneers and lets Code Less and Do More!