Cloud DevOps Engineer

Mentimeter has a large user base (~50 Million), experiences continuously fast growth, but we are a long way from reaching our goal. This puts a lot of demands on the scalability and performance of the architecture of systems. As a Cloud DevOps Engineer at Mentimeter, you will continuously monitor any performance bottlenecks that might appear in business-critical services, and you will address these yourself or together with other engineers at Mentimeter.You will manage and support the cloud infrastructure, and be a critical part of enabling all engineers in the Product Team to deliver quality code quickly by ensuring our continuous deployment pipeline is as streamlined as possible. To succeed in the role you should be curious about how to build and uphold a large-scale, business-critical system with modern technologies and your responsibilities will include the research, design and implementation of services that can scale in an efficient and reliable manner. It is important that you have a great interest for automating our cloud environments for security, reliability and scale, and build monitoring and observability solutions to ensure overall system health.Mentimeter is a high transaction system built in React, Redux, Ruby, Node.JS with a PostgreSQL database for persistence, Redis for caching and queuing, AWS Redshift for Business Intelligence, CloudFront as a CDN (with Lambda@Edge), and WebSockets to enable a fast and interactive polling experience. Hosting is done on Heroku and AWS with Continuous Integration using Github and Circle CI. We also utilize GatsbyJS for our static content sites to be able to deliver a blazingly fast experience for our end users.For many things we do at Mentimeter we always strive to automate and simplify, focusing on keeping our platform advanced enough to support our main use cases but at the same time keeping the complexity low to ensure a low maintenance cost. If there is an external provider or SaaS that provides a good solution we tend to choose that as opposed to building it ourselves in order for us to be able to focus on our core business and keep our development speed high. We expect you to share this vision and balance in your work reaching out to your fellow engineers when needed to take important decisions.We are in an exciting phase where the platform must evolve in order to ensure continued scalability of the product and our business. You will help make decisions on which architecture and technologies are best suited for our future challenges. We are, for example, looking to build our own WebSocket infrastructure for better control and reliability (perhaps based on Go) and opening up a Public API which will enable the possibility of an ecosystem of new innovations based on Mentimeter technology.We work in small, independent, self-organizing teams. The team’s Product Manager and Engineering Lead work together to organize and plan the team’s backlog with a Kanban/Scrum-mixed process, with a focus on continuously delivering new features to our users.Responsibilities:Balancing “do it yourself” vs “there is a SaaS for that” to find the smartest solution in line with business and product strategyContinuously monitor any performance bottlenecks that might appear in business critical servicesSuggest actions/changes to address these bottlenecks, be proactive and work with a high degree of autonomySuggest project that enable all engineers in the product team to deliver quality code fast by ensuring our continuous deployment pipeline is as fast as possibleTogether with other Fullstack Engineers or by yourself implement features while ensuring the long-term stability of our system and the quality of the codeAs a Cloud DevOps Engineer be able to take on initiatives and follow others’ requirementsInfluence which tools, programming languages, and technologies you work withHelp ensure we have a smooth software pipeline for continuous and fast deliveryBalancing discovery phases with implementation workBe excellent at working both independently and in a teamWe believe you have:At least 3 years of relevant experience from DevOps work or Fullstack developmentAcademic background (but no certain level needed)A great interest in working with PaaS and automationExperience in debugging performance problems in production environmentsExperience in reading, understanding and analyzing server logsExperience in building scalable systemsExperience in some of the techniques we use (see below)Passion for software development, scalable architecture and product buildingCare about code quality, testing and automationIt is great if you have experience with:High transaction systemsBuilding modern high performing web-servicesHosting on Heroku and AWSUsing AWS product like Cloudfront, Lambda,Debugging Postgres performance bottlenecksDatabase modelling and performance analysisWebsocket scalingConfiguration of Continuous Deployment solutionsNode.jsStatically typed JavascriptPostgresReactReduxWebpackFela (CSS-in-js)AWS LambdaRubyMentimeter is a product-first, gender-equal, tech-heavy, fast-growing, inclusive and profitable startup built by engineers. Back in 2014, we felt that boring and inefficient meetings had to go, so we decided to build a platform to change this. Four years later, we are listed as the fastest growing Swedish startup, have more than 40 million users and customers from over 120 countries; the journey has just begun.Mentimeter Culture:The work environment is inclusive, respectful, non-political, fun and very professional. We make sure to excel when we need to, but never overdo it in order to maintain our work-life balance. With 19 different nationalities currently working at Mentimeter, this is one of many ways we show that we embrace diversity.To embrace other cultures we also re-locate the entire team one month, once a year.