What will the role involve?Creating the best checkout experience in the world! Rethinking how merchants integrate payments, and how customers are paying onlineLeading the design and implementation of fully-tested and highly-optimised librariesCreating first-class documentation for both merchants and internal teamsWorking closely with users to analyse feedback and improve our products and services with each iterationMaking decisions on technology, building for scale and reachConducting code reviews and mentoring juniors in future as we grow the teamWorking closely with a cross-functional team of front end engineers, back end engineers, mobile engineers, designers and productWhat are we looking for?Someone pragmatic and versatile, who will use the best tools to build out the productSenior and/or Lead level experience in a previous roleExtensive experience in building, maintaining and documenting developer librariesRelevant experience with iOS - any experience with React Native is also interestingPassion for maintainable, performant, well-tested and resilient codeAppreciation for the Developer Experience we'll be creatingExcellent communication skills, able to collaborate in a cross-functional teamCuriosity and interest to learn!It would be amazing to speak to people with previous experience of JavaScript UI optimisation; accessibility best practices; and online payments and APMsThe way we work is different at PrimerOur culture is about removing the roadblocks to doing your best work. We focus on taking initiative, letting the best ideas win, and valuing output over anything else.Underpinning all of this is our 'trust by default'. Youll work remotely, wherever works best for you, have unlimited coworking access, unlimited time off, no company spending approvals, regular whole company retreats, team workations, and open access to people across the company.We find the best thinking and work come from removing limiting assumptions. So, one of our favourite approaches to solving problems is simply: If anything is possible, then what will you do?Our benefits: 100% remote working - work from anywhere you like, however you like Competitive share options Uncapped holiday, with 25 days minimum to be taken Co-working space access Team socials - quarterly workations, annual company retreats and virtual events Any device of your choosing Additional 500 towards your home office setup Unlimited learning budget Medical insurance via SafetyWingsLocation-specific benefits - pension, 401k, health insurance etc.Dont meet every single requirement?Studies have shown that women and under-represented groups are less likely to apply to jobs unless they meet every single qualification. We are dedicated to building a diverse, inclusive and authentic workplace, so if youre excited about this role but your past experience doesnt align perfectly with every qualification in the job description, we encourage you to apply. You may just be the right candidate for this or other rolesPrimer provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, colour, religion, age, sex, national origin, disability status, genetics, sexual orientation, gender identity or expression, or any other characteristic protected by law.This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Related Jobs See more Back-End Programming jobs