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We are seeking a Senior Full Stack Developer with expertise in .NET (C#) to join our remote-friendly team within Spain. You will be responsible for building secure, scalable, and compliant systems operating at a global scale, tackling complex engineering challenges in distributed systems, cloud-native architecture, and privacy-first solutions. This role involves working across the full stack, including Vue.js and PHP (Symfony), with opportunities to leverage modern AI development tools. You will collaborate closely with product and legal teams, contribute to end-to-end product ownership, and ensure high code quality, robust integrations, and efficient DevOps practices.

Sales Manager

<section class="job-section" id="st-companyDescription"><div><h2 class="title">Company Description</h2></div><div class="wysiwyg">Welcome to the good side of tech 👋You might have heard about us, but with a different name: Doctoralia. It all started 10 years ago, when we asked ourselves: is anyone in healthcare thinking about patients? We jumped in and we empowered patients by giving them access to leave and read reviews about their visit. We then provided doctors with the technology to manage bookings easily and save time, so they could devote themselves to what they always wanted: treating patients. And today is the day in which we ask you: wanna join us in the next step of helping people live longer, and healthier lives?Docplanner at scaleWe are leaders in 13 countries so far, and more than 90 million patients trust us every month. 300.000+ specialists believe in us and our product, and so do leading venture capital funds such as Point Nine Capital, Goldman Sachs Asset Management and One Peak Partners. And yet, employing over 2.500 people all over the globe, we managed to keep the startup-mindset we started with over 10 years ago.How does Docplanner Tech fit here?At <a href="https://docplanner.tech/">Docplanner Tech</a> we are a diverse group of over 400 people working in Engineering, Data, and Product teams. We are responsible for building the product for all locations. Many of us have been here for over 5 years, yet we still welcome each new person with great joy and excitement.We could tell you about us, but we will let our <a href="https://www.glassdoor.es/Overview/Working-at-DocPlanner-EI_IE1071394.11,21.htm?countryRedirect=true">reviews on Glassdoor</a> speak for themselves. In case you’d like to see how it feels to be 100% yourself at work, <a href="https://bit.ly/3xwnSAk">here’s a video of us</a>.&nbsp;And why should you join us?Because it feels good to tell your family and your friends how you made the world a little bit better. You go to bed knowing that what you do matters, and that your talents align with your beliefs.We want to make the healthcare experience more human, and that starts with you being you. We believe that taking the diversity of human experience into account makes a better healthcare experience for all . We’re not just different: we embrace diversity. We will encourage you to come to work your whole self, and that includes not coming to the office at all if you prefer not to, as we're 100% remote-friendly.</div></section><section class="job-section" id="st-jobDescription"><div><h2 class="title">Job Description</h2></div><div class="wysiwyg" itemprop="responsibilities">Who are we:We're building the next generation of secure, scalable, and compliant systems that operate at a global scale. As a senior developer, you'll tackle complex engineering challenges — from distributed systems and cloud-native architecture to privacy-first solutions — using modern technologies and DevOps practices.But it’s not just about the tech — it’s about how we build together. We value collaboration, curiosity, and a culture of continuous learning. You’ll be part of a supportive, high-trust team where your voice matters, your growth is encouraged, and your work directly supports over 80 million patients and 130,000 healthcare professionals across 13 countries.About the roleThis is not just another backend-heavy position — it’s a chance to join a fast-moving, learning-focused engineering team that owns products end-to-end. While your core strength is in .NET, you’ll also have the opportunity to work across the stack and gain hands-on experience with technologies like Vue.js, PHP (Symfony), Docker, and modern AI-powered development tools such as Cursor and GitHub Copilot. You’ll face cross-functional challenges, collaborate across disciplines, and contribute to solutions that are both technically rewarding and impactful at scale.What You’ll Do<ul><li>Develop scalable backend systems using .NET (C#), with a strong focus on performance, maintainability, and compliance.</li><li>Build user facing interfaces and internal tools using Vue.js and TypeScript when working on full-stack features.</li><li>Design and implement APIs and services, ensuring high availability and robust integration with frontend and partner systems.</li><li>DevOps practices: manage cloud infrastructure (primarily AWS), CI/CD pipelines, deployment automation, and monitoring.</li><li>Ensure top-tier code quality, including clean architecture, strong documentation, and rigorous testing practices.</li><li>Work closely with product and legal teams to support business needs and compliance initiatives.</li><li>Continuously improve the team’s ways of working and technical stack.</li><li>Optionally you can help the team to enhance existing PHP-based applications (Symfony) where needed.</li></ul></div></section><section class="job-section" id="st-qualifications"><div><h2 class="title">Qualifications</h2></div><div class="wysiwyg" itemprop="qualifications">You’ll Thrive in This Role If You:<ul><li>Have 5+ years of experience in backend development (with a strong emphasis on .NET / C#), and backend best practices (DDD, CQRS, clean code, testing)</li><li>Have experience working with messaging systems or asynchronous communication patterns (e.g. RabbitMq)</li><li>Have working knowledge of Vue.js, TypeScript, and frontend best practices.</li><li>Have practical experience with relational and NoSQL databases (e.g. MySql, MSSQL, MongoDB).</li><li>Are skilled in DevOps principles, CI/CD, infrastructure-as-code, and monitoring tools (e.g. Datadog, ElasticSearch)</li><li>Have practical experience with AWS (e.g. S3)</li><li>Are proactive, ask thoughtful questions, and take ownership of your work.</li><li>Communicate well in English (minimum B2 level).</li><li>Care about user experience, privacy, and maintainable software design.</li><li>You are open to work with(and learn) other frameworks.</li></ul>&nbsp;Bonus Points If You:<ul><li>Are familiar with Vertical Slice Architecture</li><li>Are comfortable working with or learning Symfony / PHP.</li><li>Have experience in a DevOps culture or have built internal tooling.</li><li>Know Docker and Kubernetes or similar container orchestration tools.</li><li>Have worked in regulated industries (e.g., healthcare, finance).</li><li>Have experience building compliance or privacy-oriented applications</li><li>Are familiar with AI-assisted development tools like GitHub Copilot, Cursor, or similar, and use them to increase development efficiency and code quality.</li></ul></div></section><section class="job-section" id="st-additionalInformation"><div><h2 class="title">Additional Information</h2></div><div class="wysiwyg" itemprop="incentives">What will you get in return?Let’s talk money<ul><li>A salary adequate to your experience and skills between 50,000&nbsp;and 67.000 euros. The range is broad so that we can accommodate our roles for all levels of experience, but we will show you the career ladder to explain where we see your skills and impact within the company". Your salary will be, now and always, 100% transparent to you;</li><li>Flexible remuneration and benefits system via <a href="https://flexoh.com/">Flexoh</a>, which includes: restaurant card, transportation card, kindergarten, and training tax savings;</li><li><a href="https://medium.com/docplanner-tech/stock-option-plan-is-not-optional-fefedf89ddee">Share options plan</a> after 6 months of working with us.</li></ul>&nbsp;True flexibility and work-life balance<ul><li>Remote or hybrid work model with our hub in Barcelona;</li><li>Flexible working hours (fully flexible, as in most cases you only have to be on a couple of meetings weekly);</li><li>Summer intensive schedule during July and August (work 7 hours, finish earlier);</li><li>23 paid holidays, with exchangeable local bank holidays;</li><li>Additional paid holiday on your birthday or work anniversary (you choose what you want to celebrate).</li></ul>&nbsp;Health comes first&nbsp;<ul><li>Private healthcare plan with <a href="https://www.segurcaixaadeslas.es/en/particulares">Adeslas</a> for you and subsidized for your family (medical and dental);</li><li>Access to hundreds of gyms for a symbolic fee in partnership for you and your family with<a href="https://wellhub.com/es-es/"> Wellhub</a>;</li><li>Access to <a href="https://ifeelonline.com/">iFeel</a>, a technological platform for mental wellness offering online psychological support and counseling.&nbsp;</li></ul>&nbsp;Keep growing with us<ul><li>20% time rule: spend 20% of your working hours on personal development related to your role and collaboration with other teams;;</li><li>Free English and Spanish classes.</li></ul>&nbsp;We promote and embrace equal opportunities in our hiring process, and also every day at work. When you apply for our roles you receive equal treatment regardless of age, disabilities, gender reassignment, marital or civil partner status, pregnancy or parental status, race, colour, nationality, ethnic or national origin, religion or belief, sex, sexual orientation or any other dimension of human difference.&nbsp; If you require additional support in your recruitment process, we kindly encourage you to let us know. Behind those words you’re reading, there’s a person (hi!) who already helped a candidate by adapting the interviews, and now we’re lucky to have this person with us. So, even if you’ve never asked for it before, may this serve as a sign that, now, you can do so. We can only truly be equal if we adapt to each other.“We believe all humans, in all their beautiful diversity, should have equal rights, dignity and respect. Period.” Mariusz Gralewski,&nbsp; CEO</div></section>

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dYdX is seeking a part-time frontend developer to support marketing initiatives. The role involves implementing UI updates for marketing campaigns, optimizing landing pages, and maintaining web properties. Responsibilities include creating banners, pop-ups, and announcement bars, updating content on the homepage and product surfaces using React/Next.js, and collaborating with designers on visually polished landing pages. The developer will also integrate tracking pixels and analytics tools for campaign performance measurement and ensure quality assurance for time-sensitive changes. The role requires maintaining clean, modular, and scalable code within an asynchronous, global team environment.

At dYdX you'll have an opportunity to build state-of-the-art decentralized technology that will redefine global financial markets. By joining us at this early stage you will make fundamental decisions that will shape the course of dYdX. We prefer passionate quick learners with a history of excellence at top companies and/or universities. About dYdX: We've built the world's leading decentralized exchange for lending, borrowing and margin trading Ethereum based assetsdYdX is founded by an ex-Coinbase, ex-Uber engineer, with Princeton CS background.

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<div>At dYdX you'll have an opportunity to build state-of-the-art decentralized technologies that will redefine global financial markets. By joining us at this stage in our growth, you will help make fundamental decisions that will shape the course of dYdX.&nbsp; →<a href="https://www.notion.so/dydx/Work-at-dYdX-79a4cd612ec9476fb2734d8f3b4f8d1c"> Learn more about working at dYdX</a> ABOUT dYdX: <ul> <li>We’ve built the software underlying the world’s leading decentralized exchange for advanced trading of crypto derivatives</li> <li>dYdX is founded by an ex-Coinbase, ex-Uber engineer, with a Princeton CS background. Our team has previous experience at Coinbase, Uniswap, Google, Amazon, Lyft, Meta and other top companies</li> <li>We're a world-class team with top backers and advisors, including Andreessen Horowitz, Polychain Capital, Brian Armstrong, Fred Ehrsam, Naval Ravikant, Elad Gil, and more&nbsp;</li> </ul></div><div>Role Overview We're seeking a part-time frontend developer to support our marketing initiatives by implementing UI updates, optimizing landing pages, and maintaining our web properties. This role is perfect for an experienced developer who wants to contribute to a cutting-edge DeFi platform while maintaining work-life balance. Key Responsibilities <ul> <li>Marketing-Driven Development: Implement UI updates including banners, pop-ups, modals, and announcement bars to support marketing campaigns</li> <li>Content Management: Update copy and components across homepage and product surfaces using React/<a href="http://next.js">js</a></li> <li>Landing Page Development: Collaborate with design team to create visually polished landing pages and campaign modules</li> <li>Analytics Integration: Integrate tracking pixels, UTM parameters, and analytics tools to measure campaign performance</li> <li>Quality Assurance: Work closely with marketing team to QA and deploy time-sensitive changes</li> <li>Code Maintenance: Maintain clean, modular, and reusable code that scales with our growing needs</li> </ul> Required Qualifications <ul> <li>Experience: 2+ years of professional frontend development experience</li> <li>Technical Skills: Strong proficiency in HTML, CSS, JavaScript, Tanstack Query, Redux and React</li> <li>Marketing Experience: Previous experience working with marketing or growth teams on campaign-related updates</li> <li>Analytics Tools: Comfortable integrating with analytics platforms, tag managers, and A/B testing tools</li> <li>Independent Work: Ability to work autonomously and deliver quickly in an async, global team environment</li> <li>Attention to Detail: Proven ability to translate Figma designs into pixel-perfect UI implementations</li> </ul> Preferred Qualifications <ul> <li>Experience with React Query for state management</li> <li>Familiarity with Tailwind CSS and/or styled-components</li> <li>Understanding of web performance optimization</li> <li>Experience in the crypto/DeFi space</li> <li>Knowledge of conversion optimization principles</li> </ul> What We Offer <ul> <li>Competitive Compensation: Hourly rate commensurate with experience</li> <li>Flexible Schedule: Work on your own schedule within European business hours</li> <li>Remote Work: Fully remote position with occasional team collaboration</li> <li>Cutting-Edge Projects: Work on innovative DeFi products processing billions</li> <li>Growth Opportunity: Potential to expand role based on performance and company needs</li> </ul> How to Apply Please submit your application including: <ul> <li>Resume/CV highlighting relevant frontend experience</li> <li>Portfolio showcasing React-based projects and marketing-focused work</li> <li>Brief cover letter explaining your interest in dYdX and availability</li> <li>Examples of landing pages or marketing campaigns you've implemented</li> </ul></div>

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This assessment gives us an idea of your C++ skills- Companies that evaluate this skillset in interviews: Rockstar Games, Ubisoft, Mayhem Studios, etc.- 10 Multiple Choice questions- Average time to complete: 7 to 10 minutes

Let's assess your Data Structures! - This assessment gives us an idea of your problem solving skills using DSA- Companies that evaluate this skillset in interviews: MPL, LILA Games, GSN Games, etc.- 10 Multiple Choice questions

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Let's assess your Programming Patterns! ????- This assessment gives us an idea of your code architecture skills- Companies that evaluate this skillset in interviews: Dirtcube, PTW, Playshifu, etc.

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Let's assess your OOPs skills! ????- This assessment gives us an idea of your fundamental OOPS concepts and Solid principles skills- Companies that evaluate this skillset in interviews: Hitwicket, GSN Games, Tomo Club, etc.

Object Oriented Programming

Let's assess your Unity Skills ????- This assessment gives us an idea of your Unity fundamentals- Companies you can apply for after taking this assessment: Godspeed games, Salvation Games, nCore Games, etc.