Backend Engineer Senior Jobs in Madrid, Latest Backend Engineer Senior Jobs in Madrid

On our path to becoming the world’s favorite way to shop, we’re assembling an unparalleled global talent network, accelerating individual careers, and disrupting entire industries. We are on a mission to liberate humanity from all the meaningless time spent managing their purchases and finances, so they can do more of what they love. We’re in search of global talent eager to embrace our atmosphere and defy their own expectations. Engineering at Klarna is an inspired, customer focused communit

We small businessWe founded Holvi in 2011, in Helsinki. As self-employed people wading through oceans of paperwork, we noticed something funny going on traditional banks were giving us the cold shoulder. Why not help ourselves? We asked. And so, with time and effort (and lots of coffee), we mastered small business finance and Holvi was born.Our vision is simple: Eliminate the distractions of financial admin and simplify work life, because running a business is hard enough. Small businesses shoul

The Multiplayer Group (MPG) are 300 developers and data scientists, helping our clients and partners build 20+ AAA projects at any one time. We’re probably the most experienced multiplayer dev group in the world and we’re set up to help the games industry make games more easily, to deliver the highest quality, and become long-term partners. We hire the best people, our talented team is spread across the globe. We’re remote-friendly and big on wellbeing, so if you love the sound of us, we’d love

At Lifebit, we carve our own path. Trusted by Governments and world-leading pharma institutions and funded with over $60m, we are on a mission to harness the power of connected data and bring precision medicine to life globally. The key to saving human lives is providing researchers across the globe with the right data to develop more precise drugs faster.Generating large amounts of biomedical data has become relatively straightforward. The challenge now is finding, accessing and analysing this

The Multiplayer Group (MPG) are 300 developers and data scientists, helping our clients and partners build 20+ AAA projects at any one time. We’re probably the most experienced multiplayer dev group in the world and we’re set up to help the games industry make games more easily, to deliver the highest quality, and become long-term partners. We hire the best people, our talented team is spread across the globe. We’re remote-friendly and big on wellbeing, so if you love the sound of us, we’d love

*STRICTLY NO RECRUITMENT AGENCIES PLEASE* Hey, we're Sparta Commodities! We are a Swiss, VC-backed startup with a global reach. Our mission is to digitize the commodity trading market and become the leading platform for traders in all commodities verticals. We've already gained significant market traction and are financially backed by Venture Investors. We're currently seeking a highly motivated Senior Backend Engineer to become a key player in our Engineering team. This is a unique opportunity

Learnlight is an EdTech company that provides language, intercultural and soft skills training to leading companies and organizations around the world. We deliver blended virtual, blended face-to-face, and digital solutions to 100,000+ learners in 1500+ clients across 150+ countries. We specialize in the digital transformation of learning programs and the empowerment of talent to excel in an increasingly complex global environment.We are seeking a highly skilled Senior Backend Software Engineer

Senior Ruby on Rails Backend Software EngineerAs a backend software engineer you will make a meaningful contribution in ensuring we continue to move in the right direction. You will be working on a variety of exciting technologies. Our application code is written in Ruby 3 using Rails 7, PostgreSQL, Redis, MQTT.We do things well, but we’re not complacent. We want to do great work and to be known for it. We are breaking up our applications into microservices that are well tested, independently de

About usJoining Busuu means being part of one of the top EdTech companies in the world, a multiple award-winner recognised for its innovation and impact in language learning.Busuu’s vision is to empower people through languages. We are the world’s largest online community for language learning, with 120+ million registered users. We make learning a language easy by combining AI-powered courses with feedback from our global community of native speakers and lesson content designed for real life.Bu

About usJoining Busuu means being part of one of the top EdTech companies in the world, a multiple award-winner recognised for its innovation and impact in language learning.Busuu’s vision is to empower people through languages. We are the world’s largest online community for language learning, with 120+ million registered users. We make learning a language easy by combining AI-powered courses with feedback from our global community of native speakers and lesson content designed for real life.Bu

parcelLab, the leading Operations Experience Management platform, is growing internationally. We're looking for the best talent from across the world to help us bring people and brands closer together. We are looking for a full-time Senior Backend Engineer to join ourGlobal Engineering team. In this role, you will build the systems that power pre-checkout, delivery and returns experiences in more than 550 brands worldwide. Are you convinced that software testing and engineering best practices a

Title: Senior Software Engineer (Java Backend)Location: Remote, Anywhere in EuropeHours: Full-TimeContract: Permanent Positions:: 5 vacanciesStart: ASAPResponsibilities- Coordinating with game development teams to determine application requirements and their estimation. - Writing scalable and well maintainable code using Java programming language. - Testing and debugging applications. - Developing back-end components within the stipulated time. - Integrating user-facing elements using server

Title: Senior Software Engineer (Python Backend)Location: Remote, Anywhere in EuropeHours: Full-TimeContract: Permanent Positions:: 5 vacanciesStart: ASAPResponsibilities- Coordinating with game development teams to determine application requirements and their estimation. - Writing scalable and well maintainable code using Python programming language. - Testing and debugging applications. - Developing back-end components within the stipulated time. - Integrating user-facing elements using se

Busuu is one of the top EdTech companies in the world and has won numerous awards for its innovation and impact in language learning.Busuu’s vision is to empower everyone in the world through languages. We are the world’s largest online community for language learning, with more than 120+ million users from 190 countries, growing at up to 20,000 new users per day. We make learning a language easy by combining AI-powered courses with instant feedback from our global community of native speakers a

Take advantage of this unique opportunity to actively shape WorkMotion's growth story. As our Staff Engineer within our Payroll team, you’ll have the chance to experience a unique 360 perspective behind the curtains of a textbook hyper-growth scale-up. What your team will look likeYou will join one of our agile and cross functional engineering teams, focused on our Workmotion platform’s payroll domain. This involves collecting and processing data related to payroll and implementing integrations

LetsGetChecked is becoming a global leader in personal health testing. Our medical technology platform provides connectivity between customers and our global network of laboratories. We are enabling customers to order, manage and track their own clinical outcomes through a personal online account.Our Software Engineers take pride in designing and developing scalable solutions that drive our core mission of empowering individuals, corporations, universities, public sector, and health insurance co

LocationHelsinki / Berlin / EU or EEA country (remote)What matters most in your work life?Here at Holvi, we work hard because we love what we do and we excel at it. By empowering people to start living for themselves, we’re changing the world of entrepreneurship one small business at a time. But balance doesn’t just happen outside Holvi’s doors. It’s our way of life. We’re looking for talented individuals who want to shape Holvi’s product and culture and at the end of the day we clock off at a r

At Blueground, our vision is to make people feel at home wherever they choose to live. For us, that means ensuring our guests have the peace of mind, flexibility amp; confidence they need to explore life’s latest adventure.We’ve grown a lot since our founding in 2013, having raised more than $258m+ in funding, to date -- and that’s just the beginning. We’re now hosting guests in more than 8,000 homes in 20+ cities, with an aim to hit 50 cities by 2025. Our vision comes to life through our ways o

Remote-first and based in either the Spain , Germany or Serbia Engineering is at the heart of what we do at Chronomics and our API first approach drives everything. We are using technology to disrupt science and empower people with their health data. Who we are: At Chronomics, we are building a bio-infrastructure platform to power the use of biomarkers in everyday life. We are on a mission to make the unseen actionable. We reduce the cost, time and complexity of bio-science by automating logis

Location: Spain - We help you to relocate Remote friendly International environmentCompetitive salary and perk The revolution starts with small things: driving EVs, taking profit from renewable energy sources to avoid fuel At Wallbox we work to make the world greener! Why should you apply?- Take your skills to the next level while collaborating with highly skilled colleagues. - You want to make a positive difference in the future environment. - The teams have a high degree of autonomy in d