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Backend Developer - Senior
 
Title: Backend Developer - Senior
Category: IT/Software Development
Job type: Permanent
Job status: Full Time
Salary: £80,000.00 - £95,000.00
Salary per: annum
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Description:
Date posted: 3rd March 2019

Closing date: 3rd June 2019

Description:

Job Title: Senior Backend Engineer Salary range: £80k to £95k plus equity Permanent position Reporting to the CTO London Office: 41 Luke Street, London, EC2A 4AR

No. More. Paper. Receipts!

We're building the world's first API to tell you exactly what you've bought, not just how much you've spent. We are looking for a talented developer with a passion for API's and microservices who is excited at the opportunity to be involved with everything between feature planning, implementation, testing and architecture of a best in class system.

See our Life at Flux video to learn more about working at Flux: /302887685

Our engineering team are deeply curious and phenomenal problem solvers. We are building a revolutionary platform that is on the cutting edge of technology and financial regulation. As an engineering team we all work very closely with all parts of the business including legal, product, sales and operations. We don’t believe in working in silos and make sure people are mixed up, starting with where you physically sit at our headquarters in Old Street London. There is no dark corner just with engineers!

The projects that we work on:

Retailer and bank API integrations Matching Algorithm, find and implement improvements to our matching algorithm that will allow throughput of millions of transactions per day Build out Blueberry, Flux's merchant dashboard which processes complex analytics over large data sets in real time. This involves development of a GraphQL service that serves these stats and other data over websockets New product development (e.g. displaying nutritional info via receipts, building a better returns process for retailers or improving our developer experience) The technologies we use:

Our tech stack follows open standards and handles a large volume of transactional data from some of the biggest retailers and banks in the UK. These are processed in microservices. Our backend is written in Kotlin which is based on the JVM and our frontend is primarily in React. We use GraphQL and subscriptions to facilitate real time communication between the frontend and backend and deliver analytics to our retailers in retailers. The infrastructure is built using Docker and Kubernetes.

Interview Process:

The interview process will include an interview where we will walk you through a coding case study and an architecture case study. This is to test that your ability to synthesise, analyse and provide solutions is at the relevant level required for this role.

Requirements

You will be curious and passionate engineers who are are excited by Flux's mission and product You will have a minimum of 2 years in a startup or with greenfield projects which you were directly involved in You will have experience in 2 programming languages, including a JVM language You will have experience designing and delivering low latency, highly scalable complex systems Working in an agile manner, you will have excellent communication skills, having worked with both business and tech teams Benefits

£80k - £95k + Equity Generous holiday allowance (28 days) - we encourage everyone to use their allowance! Join the Flux Club! £100/month spending money at Flux Retailers (EAT. pod, itsu, Pure, KFC) Company pension scheme Weekly team lunches Annual company trip Work from home Wednesday (after 3 months) and Fridays Central London location between Shoreditch and Old Street Unlimited artisan coffee Fresh fruits, nuts, beers and other snacks provided Latest Macbook Pro, screen and additional tech set-up required Office building perks such as weekly yoga and fitness classes
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