Tech Lead (Frontend Engineer-JavaScript)

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Tech Lead (Frontend Engineer-JavaScript) - 6 Months Tech Lead (Frontend Engineer-JavaScript) - 6 Months The location of the role is Paddington, London (hybrid remote working). The pay rate on offer is up to £700 per day (Inside IR35) The client is a large, multinational high-street retailer Job PurposeWe are looking for a passionate Tech Lead to help design, develop and deploy software for our solution for Next Gen Sparks Mission Team. The successful candidate will be able to build high-quality, innovative and fully performant software in compliance with best practise coding standards and technical design. Help to drive better working practises and become a valued member of the engineering department. Next Gen Sparks Mission Team goal is to test and build hypothesis forUnlimited Next Day Delivery that would increase consideration and purchase frequency.Offering discounted pricing across a spectrum of product categories (flowers, beauty, essentials) if customers start a recurring subscription would result in increased spend and consideration.Creating a recurring mechanic that conveniently bundlesor automatically sends what customers could regularly want would capture share of wallet within category or trying new categories.Creating a paid membership tier with various premium benefits would generate a revenue stream that partially or fully subsidises benefits that meaningfully reward loyal customers Problem statement: -Many customers don't shop with us frequently enough / low share of walletMany customers shop a single mission, or with low consideration or awareness of breadth that we offerFor some customers, current Sparks proposition doesn't offer enough value exchange leading to disengagement.Current Sparks proposition enhances existing loyalty behaviour versus being a platform for creating new. Key Accountabilities and MeasuresStrong software design. Expected to know a wide array of software design patterns in depth, display a strong understanding of algorithms and data structures, and able to show multiple real-life examples of applications of this knowledge.Consults business stakeholders on the best approach for delivering complicated feature, both in how it can be split and sequenced, and in terms of potential improvement to the functional requirementsBeginning to show signs of continuously mentoring less experience members of the team. Not just giving a hand here and there, but genuinely trying to upskill their peers.Collaboratively solves problems; communicates technical decisions through tech-talks and white-boarding sessions Shows engagement when architecting and developing new softwareShows engagement with the wider engineering community. Hosts Brown and Bag sessions and is seen as someone who interacts with the wider engineering community.Helps other engineers to produce clean, quality code through strong engagement in code reviews and pair programmingTakes full ownership of the tasks in their backlog and is also begging to show signs of taking accountability for the entire team's backlog.Actively engages with the product teams to make the product better, and to understand ambiguous requirementsTo be seen as helpful, by both engineers and productKnows when to challenge the team to be pragmatic. Key SkillsStrong JavaScript experience with single page applications.Experience with using templating engines (Handlebars, Mustache) Strong experience with CSS/SASS Familiarity with ES6 / CSS3 syntax's Experience with NodeJS and Express Experienced in consuming and sending data to Restful APIs Experience with build automation tools (Webpack, nodemon) Experience with testing frameworks and libraries such as Mocha, Chai or Webdriver.io Experience building AB / MVT using JavaScript within experimentation tools such as Adobe Target(Client and Server Side).Understanding of UX and UI with HTML and CSS3 knowledgeProven experience developing a best of class web applications in several different business contexts Strong understanding in responsive design Experience working within a CI environment, preferably where continuous deployments where possible Experience working within an Agile environment such as Scrum or Kanban Ability to mentor and provide constructive feedback to members of the team Proficiency with TDD & BDD Good understanding of good software design principles both in terms of object-oriented design and best practices applying functional programming paradigms Experience with distributed version controls systems like Git Awareness of extreme and pair programming Understanding of Accessibility best practices Experience of cross browser support and supporting older devices Cloud experience - Preferably Azure.