\nAbout Zumo\nZumo is the FCA registered, blockchain-powered digital asset partner for individuals and institutions. \nZumo App, our consumer crypto wallet, allows individuals to exchange, store, send and spend cryptocurrency alongside their ordinary money. \nZumo Enterprise, our B2B crypto-as-a-service platform, helps banks and financial institutions to roll out compliant and ESG-aligned crypto products.\nGuided by the principles of sustainability, security and customer empowerment, Zumo provides simple and secure technologies to unlock the benefits of crypto and web3. \n\n\nOur Mission\nWe're on a mission to bring the benefits of digital currencies to people and businesses everywhere through sustainable and responsible growth. \nWe believe in a career-defining experience for our people, and we’re looking for individuals who share our values to join us on the journey to build a better financial future.\n\n\nAbout the role\nWe are looking for a mid level backend engineer to help our product evolve and scale to meet growing customers' needs.\nYou’ll be surrounded by incredibly passionate, talented and dedicated people, who all have a say in what we build and how we build it. We encourage proactivity, embrace creative problem solving and drive for improvement.\nWe strive to build empowered, cross-functional product teams, supported by agile principles and fueled by the passion to build outstanding products to support our mission.\nOur products are built on microservice architecture to enable the rapid, frequent and reliable delivery of features, whilst applying software development best practices and design patterns, to ensure our code is maintainable, reusable, scalable and secure. \nAs part of your role, you will be responsible for code quality and reliability, supported by regular code reviews, tech peer discussions and automated testing infrastructure.\nBeside your day to day responsibilities, you will contribute to decisions about the most suitable tech stack to achieve the desired outcomes, but here’s our current baseline: TypeScript, Node.js, PHP using Symfony (tech debt 😕), React Native, Swift, Objective-C, Java, PostgreSQL. The product runs on AWS cloud, and the Kubernetes cluster orchestrates it.\nSalary\n£60,000 - 68,000 depending on experience\n\nRequirements\n * You are a passionate software engineer with 3 – 4 years of experience delivering outstanding results in product teams.\n * You have been part of a successful start-up to scale-up journey.\n * You have experience with Javascript/Typescript and Node.js or similar.\n * You have experience with AWS, Azure or similar services.\n * You are familiar with microservice architecture.\n * You are familiar or keen to work with blockchain and other web3 protocols.\n * You are a good problem solver who takes pride in their work.\n * You are comfortable with the unknown and you love to experiment and learn.\n * You are a team player who believes the most incredible things are achieved as a team.\n * You have a genuine desire to build an outstanding product for our customers.\n * You have a sense of empathy for users, customers, teammates and colleagues.\n * You are passionate about technology and keen to experiment and innovate.\n \n\nBenefits\nZumo’s internal mission is to create an environment where you can create the best work of your career. In order to do that, we offer:\n\n * A remote first hybrid work environment - Everyone does their best work in different environments. We operate as a remote first hybrid team, giving you the flexibility to work wherever suits you best.\n * Professional development - We focus on fostering a culture of learning, curiosity and ongoing professional development.\n * Pension - We give you flexibility to opt in to our voluntary company pension scheme.\n * Generous holiday allowance. \n * At Zumo, we believe in the strength that difference brings to our business, our culture, and our community. We value the opinions and experiences of all our colleagues and are proud to be an equal opportunity employer.\n \n\nOur values\nInclusion inspires\n * Zumo is accessible to everyone, everywhere\n * We believe that the benefits of crypto and blockchain are for everyone\n * Our decision-making is founded on the balance between people, profit and planet\n \n\nTransparency wins\n * The technology that we build has usability and security at its core\n * We seek to make the complex simple\n * We don’t use jargon\n \n\nUnshakable commitment\n * We bring our A game to work every day\n * We believe that great productivity comes from a tranquil environment\n * We give feedback in a respectful way\n \n\nLove the adventure\n * We don’t take the easy path unless it’s the right one\n * We’re constantly exploring to find the best way\n * We accept failure as part of the road to success\n \n\n\nTowards a sustainable world\nWhen it comes to crypto, we don’t believe progress should come at the cost of the environment. As the sector develops and matures at unparalleled pace, we have the perfect opportunity to ensure we develop products and behaviours that will help the future of the planet. And we believe we can play our part in demystifying the information surrounding digital assets and their impact on the climate, helping everyone to understand, assess and contribute to the decarbonisation of the industry. Find out more about our net zero strategy, partnerships, environmental pledge and work to decarbonise the sector on our webpage here. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Web3, Crypto, React, Testing, PHP, Engineer and Backend jobs that are similar:\n\n $60,000 — $110,000/year\n \n\n#Location\nUnited Kingdom

\nThirdwave is the first Unified Web3 Growth Platform providing game developers with business insights, wallet intelligence, and targeted advertising to grow their game. As a member of our team, you will play a critical role in delivering key infrastructure and tools that empower web3 game projects to control their destiny. You will also have the opportunity to connect gamers to the projects, games, and communities they love.\n\n\nWe are currently seeking a driven and enthusiastic Backend Engineer to join the Thirdwave team. Our ideal candidate is someone who possesses a solid understanding of blockchain protocols and nodes, or is eager to learn and delve into the intricacies of these emerging technologies. As a Backend Engineer, you will be part of a team that is passionate about the intersection of gaming and blockchain, and committed to shaping the industry's future. \n\n\nWhat you’ll achieve\n\n\nAs a Backend Engineer, your immediate focus will be to design, develop, test and maintain highly scalable and reliable back-end systems that power our platform's features and functionalities. You’ll wear many hats and have a lot of autonomy. You will be a part of shaping and influencing the future of the team, product, and the company.\n\n\n\nYou Will Also\n* Continuously improve the performance and efficiency of the platform by optimizing its architecture and infrastructure\n* Debug production issues across multiple services and all levels of our infrastructure stack\n* Identify data needs for business and product teams, understand their specific requirements for metrics and analysis, and build efficient and scalable data pipelines to enable data-driven decisions across the company\n* Participate in code reviews, and provide constructive feedback to other developers to ensure that best practices are followed\n* Implement processes and practices to support the scaling of the development team\n* Collaborate with cross-functional teams, including product managers, designers, and front-end developers, to ensure seamless integration of the platform's back-end with its front-end\n* Develop and execute against both short and long-term roadmaps, making effective tradeoffs between business impact, user experience, and a high-quality technical foundation\n* Ensure code quality and maintainability by writing clean, maintainable, and testable code.\n\n\n\nAbout You\n* You are passionate about developing scalable and reliable back-end systems. \n* You are comfortable working in a fast-paced and dynamic environment and are able to collaborate effectively with cross-functional teams. \n* You have a strong understanding of software architecture and design patterns, and can develop solutions that meet the platform's requirements.\n* You are skilled at problem-solving and are able to identify and resolve back-end issues and bugs quickly. \n* You have a strong sense of ownership and take pride in writing clean, maintainable, and testable code. \n\n\n\nMinimum Qualifications\n* A degree or above in computer science, electrical engineering, math, or equivalent experience\n* 2-3 years of professional experience in software development with a focus on back-end development\n* Web and mobile development skills in React, Relay, Apollo\n* Experience with UI frameworks like React combined with GraphQL (Relay or Apollo).\n* Compiled languages: C, Java, Rust, or Go (Added Java)\n* Interpreted languages: Python, Ruby, or Typescript\n* Experience with RDMS and Columnar databases. OLAP, OLTP, Data processing tools like Spark\n* ML tools like Tensor Flow, PyTorch a plus\n\n\n\n\n\nWhat We Offer\n\n\n- Comprehensive medical, dental, and vision coverage for you and your family\n- Additional benefits to help care for your family such as flexible parental leave and fertility & adoption assistance\n- Unlimited PTO, including two recharge weeks (two company-wide weeks off, 13 paid holidays AND a $1000 - vacation stipend once a year to spend on travel, etc.\n- Awesome Perks including a $200 monthly Lifestyle Stipend to support not just your 'health & fitness' but your general wellbeing, a $1000 home office budget to get you set up at home, and a $125 monthly phone & internet stipend\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Web3, React, GraphQL, Mobile, Engineer, Backend and Digital Nomad jobs that are similar:\n\n $60,000 — $115,000/year\n
\n\n#Benefits\n 🖥 Home office budget\n\n
\n\n#Location\nSan Francisco, CA

About CoW Protocol \nCoW Protocol is on a mission to create the fairest and most efficient venue for exchanging digital assets on all EVM-compatible chains. Since launching a year ago, we have passed $20bn (yes, billion) in trade volume, and become the 2nd most popular DEX Aggregator on the market -- aiming for #1. If you are a high-performing team player who wants to work on some of the most important problems in Ethereum (MEV protection, consumer protection, batch auctions, and more), we want to talk to you!\n\n\n\nLocation: We are a fully remote team, and although we hire globally, there is a preference for this role to be based in Europe or remote +/- 3 hours CEST time\n\n\n\nPosition: Full-time Contractor\n\n\n \nAbout the role\nYou will be part of the frontend team and closely align and work together with the business development team. The goal for this role is to increase the amount of integrations of CoW Swap and grow the general ecosystem that’s built around CoW Swap. As part of your role you will examine and brainstorm new collaboration ideas with our partners, improve the SDK and general developer experience, work closely on our grants program (define bounties and evaluate submissions), and attend conferences and hackathons.\n\nWhat you’ll do\n\n\nBe CoW Protocol’s foremost expert on the developer audience. Work to understand the core needs, pain points, and motivations of external engineers that are tasked with evaluating and implementing CoW Protocol\n\nStructure documentation requirements for developers with varying objectives — from integrating CoW Protocol into their existing DeFi platforms to creating new solvers for the core protocol\n\nDevelop features that foster fast integrations (e.g. easy to integrate widget for swapping)\n\nHelp the CoW GrantsDAO in creating new technical bounties as well as assessing bounty applications and submissions\n\nPlan, oversee, and develop materials for CoW Protocol’s presence at hackathons. Travel the globe to be an on-hand resource for anywhere between 4-8 Ethereum conferences per year\n\nShape the roadmap of CowSwap by collecting and scoping out new feature requests and proposing improvements that will accelerate the onboarding of new partners\n\nAttend sales calls between technical teams to assess deal potential, suggest other collaborations, and ideas, and evaluate priorities.\n\nMaintain excellent communication with current and potential partners in terms of onboarding and ongoing support.\n\n\n\nWho you are\n\n\nYou have several years of experience developing professional client-side web apps\n\nExperience in Python, JS, React\n\nExperience designing restful API\n\nAutomation of tools, docker\n\nA natural collaborator and problem solver\n\nExperience developing software solutions\n\nExtrovert, you enjoy talking to other devs and exploring new ideas for collaborations\n\nExcellent communication skills in English\n\nExcited by new challenges\n\nProactive & hands-on! Sending code snippets to kick-start an integration can go a long way!\n\n\nIt’s a plus if you bring:\n\n\nUnderstanding of the Ethereum blockchain and ecosystem, general finance and/or game theory, and mechanism design.\n\nGood to have other relevant languages, like Rust, C++, Solidity\n\nGood to have experience in consulting, on technology solutions or as a client-facing solutions architect, integrations engineer, or similar\n\n\n\nOur tech stack\n\n\nProduct: Typescript, React, Redux, styled-components, Rust, Python, C++\n\nWeb3 development: Web3, ethersjs, Hardhat, Foundry, Solidity, IPFS, TheGraph, ENS\n\nTesting: jest, cypress, React testing-library\n\nAnalytic tools: Dune Analytics, Google Analytics\n\n\n\nWhat we can offer you\n\n\n\nFlexible work environment: join one of our hubs in Berlin or Lisbon or work remotely with the option of joining a local coworking space;\n\nCompetitive compensation and a stake in the success of the project (token plan);\n\n\nRegular trips to reunite with the rest of the team;\n\n\nConference budget to keep up to date with the developments of the ecosystem;\n\n\nLearning budget to support your higher ambitions;\n\nImpact: If you are joining a startup, and you can make a huge difference. Your work matters!\n\n\n\nBut most importantly - grow with us! We're growing rapidly, the industry is expanding fast, and we have a lot to do. If you're someone who loves taking the initiative and getting things done, there are a lot of opportunities for you at CoW Protocol. We’re enthusiastic about our shared mission and enjoy spending time together!\n\nCulture\nLife in CoW Protocol is an amazing journey, we pride ourselves on how we work together. We like autonomy, we think big, and we have a growth mindset. We value initiatives and ownership. Our work is open source, designed code is publicly accessible - anyone can see, modify, and distribute the code as they see fit.\nResearch shows that while men apply to jobs when they meet an average of 60% of the criteria, women and other folks tend to only apply when they check every box. If you think you have what it takes but don't necessarily meet every single point on the job description, please still get in touch. We would love to hear from you.\nWe look forward to your application!\n \nAt CoW Protocol, we strive to create an inclusive environment that empowers our employees. We believe that our products and services benefit from our diverse backgrounds and experiences and are proud to be an equal opportunity employer: all qualified applicants are considered for positions regardless of race, ethnic origin, age, religion or belief, marital status, gender identification, sexual orientation, or physical ability. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Defi, React, Travel, Finance, Sales, Engineer and Digital Nomad jobs that are similar:\n\n $70,000 — $120,000/year\n
\n\n#Benefits\n 📚 Learning budget\n\n
\n\n#Location\nWorldwide