Position: Senior Back End Developer
Company: Ciklum
Experience required: 3y
English level: intermediate

Responsibilities

Architecting and developing JavaScript code, launching new features and optimising performance
Solving interesting performance and caching problems as our traffic continues to scale
Developing the code and business logic for the backend platform that powers the whole business
Organising and structuring platform code to make it highly efficient, maintainable and reusable
Working with third party APIs and web services (REST, SOAP, etc) to provide real-time valuations and submit vehicle and customer information to car buyers
Working with our data layer (PostgreSQL & Redis), helping to make changes to the schema and creating tools and reports to help us understand our performance
Working with our infrastructure (currently Heroku and AWS) to scale as we grow, and provide the highest possible performance
Working in our flat-structured development team, and getting involved in the technical and product strategy of the business
Working closely with front-end, design and product teams to support client apps
Championing and implementing software development best practices to ensure our code is high quality, well-tested, scalable and secure
Experimenting with new techniques, tools and frameworks to keep us at the cutting edge of modern JavaScript development
You’ll perform this role across all our collection of microservices (node.js with Express and Sequelize) that power our user-facing applications through RESTful APIs.

Requirements

A degree in Computer Science; or a maths, science or engineering subject
At least four years of commercial experience working with web apps, websites and APIs in a production environment
Experience working with JavaScript. In particular we are interested in people with experience of ES2016/2017 features, and technologies and frameworks such as node.js, Express and Sequelize
Experience working with relational databases and NoSQL databases, including complex queries and performance optimization
Experience configuring, deploying and monitoring apps and websites on PaaS services such as Heroku or AWS
Experience working with version control, automated testing and continuous integration
Experience of agile software development practices and working collaboratively in a team environment
Good written and verbal communication skills
A passion for technology and software, demonstrated by personal projects, blog posts or contributions to open source projects
A can-do attitude with a willingness to work hard, both on your own and as part of a team
Ambition to develop and be the best at what you do

What's in it for you

Be part of a rapidly growing startup at the early stage
Have a competitive salary
Have the opportunity for fast career progression
Build products that will change an entire industry
Develop your skills and experience rapidly, and get ongoing training and support
Work with people that are passionate about what they do
Have the opportunity for paid visits to our offices in London
Enjoy regular social events