Fullstack Software Engineer

Wallapop

Wallapop is a Barcelona based scale-up driven by the purpose to empower people to embrace a more conscious and human way of consumption. We believe in a world where collaborative economy is mainstream. This is what drives us. 💫 Wallapop operates in Spain, Italy and Portugal, offering a catalogue of several hundreds of millions of products and services. Powered by technical innovation and continuous improvement, we bring together the scale & trust of classifieds with the marketplace’s convenience & reach. 🌱 Our mission is to enable a connected trade ecosystem, making 2nd-hand the norm through smart use of technology.   THE CHALLENGE 🧩 Are you ready to kickstart your engineering career? We are launching our first cohort of our Full-Stack Graduate Program—an immersive, 21-month rotational journey designed to cultivate adaptable, high-impact T-shaped software engineers.   At Wallapop, we believe in building solid vertical depth in a core technology while fostering a horizontal, working fluency across the rest of our ecosystem. Over the course of 21 months, you will complete three distinct 6-month rotations through our core engineering chapters—shipping real production code used by millions—alongside a 3-month business immersion rotation: * Backend Chapter (6 months): Deep dive into robust, scalable server-side systems using Kotlin & Java (with Spring Boot, Ktor, AWS, and microservices). * Frontend (Web) Chapter (6 months): Build responsive, elegant, and modern web applications using React & Angular. * Mobile Chapter (6 months): Craft exceptional native mobile experiences on either iOS (Swift) or Android (Kotlin/Java) depending on team fit. * Business Immersion (3 months): Step outside of engineering to complete a rotation in non-engineering departments. This will allow you to get to know other parts of the business and gain an understanding of how Wallapop operates as a whole.   You will be supported by a comprehensive, three-tier mentorship model including a dedicated Anchor Engineering Manager for your entire 21-month journey, a rotating Chapter Mentor for daily pair-programming, and a Rotation Team Manager to integrate you into cross-functional agile rituals. We also treat AI-native developer tooling (GitHub Copilot, Claude, etc.) as first-class citizens to help you ramp up and contribute fast! WHAT YOU WILL DO 👇 Build and ship features on systems used by millions of buyers and sellers — real work, not training exercises. * Rotate across engineering chapters over 18 months, gaining hands-on experience in Backend (Kotlin/Java), Frontend/Web (React/Angular), and one mobile platform (iOS or Android). * Rotation in a non-engineering department over 3 months. This will allow you to get to know other parts of the business and gain an understanding of how Wallapop operates as a whole. * Work with senior and mid-level engineers and cross-functional stakeholders who will mentor you, review your code, and push you to grow. * Use AI tooling as a first-class part of your workflow — Copilot, Claude, and similar tools are how we work, not an afterthought. * Participate fully in team life: standups, planning, retros, code reviews. * Own your learning — flag blockers fast, ask questions freely, and teach back what you're learning. WHAT WE’RE LOOKING FOR 🔎 We care more about how you think and learn than about what's on your CV. We're looking for people who are genuinely curious, who want to understand systems rather than just pass tests, and who are motivated by building things that matter. * Fresh graduate — University (e.g., UPC), Grado Superior, or equivalent. This is your first professional engineering role. * Basic coding fluency — you've built things, you can debug, you understand what your code actually does. * Curiosity — you ask why, not just how. * Learning velocity — you pick things up fast and lean into unfamiliar territory. * Openness to breadth — you're not here to be a one-stack specialist. You want to understand the whole picture. * Care — you want to do software well, for the right reasons. * Fluent English — Ability to communicate clearly and effectively with English-only stakeholders across Wallapop. WHAT WE OFFER 🚀 * Permanent contract from day one — you're an engineer at Wallapop, not a trainee on a clock. * 21 months of structured rotation with real ownership at every stage. * A dedicated mentor per chapter + a stable Anchor Engineering Manager across the full program. * AI-native onboarding — you'll be set up with the tooling and context to contribute fast. * A clear path to becoming a fully fledged Full-Stack Engineer at the end of the 21-month rotation. * Competitive graduate salary. * Wallapop's standard benefits package (detailed below!). Do note that all our jobs are 📍 Barcelona based. We follow a hybrid model where flexibility rules. We commit to a minimum of 6 days per month in the office. Each team self-organizes to decide on cadence and in-person/remote rituals. Wallapop is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees as we want Wallapop to be a place for everyone. Additionally to the opportunity to contribute to an agile product set up and work together towards achieving our meaningful mission, we offer the following 🍭 Perks & Benefits: * Generous individual learning budget of 2k per year * Free office meals, lunch selection from different providers * Group and individual English, Catalan & Spanish lessons as part of our working day * Private Health Insurance with Alan * Flexible working hours + Intensive Fridays * Flexible remuneration to deduct from gross salary (kindergarten/food/transport check) * Gym & Wellness plan, including physiotherapist in the office * Generous referral Program & Charity Donation * Bonus for weddings & newborns * Wallapop Renta (Tax income support) * Monthly plan for free shipping, bumps & home-pick-up on our services * Work anniversary Gifts and Birthday Surprises * Contribution towards your WIFI in your monthly payroll * One-off payment based on compensation package to go towards setting up your home office * Relocation package (monetary support and legal advice) and visa sponsorship, if applicable * 26 holidays per year * TOP hardware of your choice (latest Apple or Windows)   What does the hiring process for this position look like? 👀 Intro Call - run by talent acquisition, focus on providing more information about the role and the company as well as going over your experience, motivation, and expectations. This usually takes 45-60 minutes. Conversation with an Engineer: In this step, you will meet with a member of our engineering team. We will dive deeper into your technical background and problem-solving approach to assess if you are a strong fit for the team. It is also a great opportunity for you to ask specific questions about our tech stack and the day-to-day work. In-Person Assessment Centre (Mid-September): If selected, you will be invited to our office for a collaborative assessment centre. You will participate in exercises alongside other candidates, giving you a chance to showcase your skills, meet our team, and get a real feel for how we work.

FREENOW

Location: Come and join us in Barcelona! We are looking for a talented and motivated Senior Backend Engineer (m/f/d) for our new Driver Onboarding team. As part of a highly skilled, cross-functional team comprising Fullstack Engineers, Backend Engineers, a Product Manager, a Product Designer, a Data Analyst, and a technical Engineering Manager, you will help shape the future of mobility with FREENOW and assist our drivers in their daily work. Our team is the cornerstone of the driver experience, with a core focus on streamlining the driver registration flow and ensuring the integrity of our platform through advanced document validation processes. Our mission is to provide a fast, frictionless, and secure onboarding journey for every new driver. We achieve this by: * Designing and implementing the entire driver registration and onboarding journey, making it simple, intuitive, and fast. * Developing and maintaining robust, automated document validation systems, powered by LLMs and ML models, to ensure compliance and quick approval for drivers. * Collaborating closely with Operations and other engineering teams to constantly optimize process automation within the document lifecycle. * Providing self-service tools that empower drivers to efficiently manage their documentation and account details. * Integrating key insights into internal systems, fostering collaboration across teams to improve the overall driver experience. As a critical part of our company, this team's work directly impacts thousands of drivers and, ultimately, the experiences of millions of customers. Your contributions in this role will have a tangible and far-reaching effect on the lives of many. As an engineer on our team, you will tackle the exciting challenges of building a best-in-class driver onboarding platform. This includes designing and building innovative, high-scale solutions for document validation and workflow automation, directly enhancing the start-to-finish experience for our drivers and ensuring the quality and compliance of our fleet. You'll be involved in every stage of product development, from ideation to implementation, ensuring a seamless and impactful experience. We also value a mindset that challenges the status quo—constantly exploring new technologies and approaches to improve our products and maintain a state-of-the-art codebase. Beyond technical excellence, your contributions will help foster a collaborative and inspiring team culture, making our workplace an enjoyable and fulfilling environment. ---------------------------------------------------------------------------------------------------------------------------------- YOUR DAILY ADVENTURES WILL INCLUDE: * Own the Feature, Own the Code – feel responsible for what you create. It all starts with bringing in your feature ideas, goes over development, testing and ends in deploying your code and monitoring it. * Design and develop systems based on product requirements or refactorings. * Maintain and improve the existing systems by finding bottlenecks and performance issues and improving resource usage (DB access, cache, messaging, etc.). * Collaborate with your team members in an Agile environment, contribute to and live our agile ceremonies. * You care about teamwork: Be accountable for all topics above, but work together with the team on them. * Stay on top of the latest technology trends and AI-assisted development tools, and bring best practices to our daily work. Our Techstack: Kotlin | Java | AWS | Docker | Git | Kafka | ElasticSearch & more ---------------------------------------------------------------------------------------------------------------------------------- TO BE SUCCESSFUL IN THIS ROLE: * Passionate about Kotlin or Java. * Experience with the quirks of Spring Boot or similar frameworks, automated tests and CI/CD tools. * Knowledge of microservices architecture. * Comfortable with AI-first development practices, we use tools like Claude and Cursor daily, so experience or strong interest in AI-assisted coding is important. * Familiarity with monitoring tools (i.e., Grafana, Datadog, Kibana etc.). * Keen about principles and practices of scalable web applications, such as RESTful API’s, dealing with transactions, and resiliency. * Familiar with messaging by using Kafka or RabbitMQ. * High level of creativity; there’s all the freedom to think outside the box. * Be communicative, proactive, and always collaborative. * Excellent written and verbal communication skills in English. Nice to have:  * Experience working with AWS or similar cloud service providers. * Experience in Python, particularly for data processing or AI integration tasks. * Experience with document automation validation. * Familiar with Agile methodologies such as Scrum or Kanban. ---------------------------------------------------------------------------------------------------------------------------------- BENEFITS & PERKS IN A NUTSHELL: * Flexible working arrangements * LinkedIn Learning * Sabbatical & special leave policies * WeRoad partnership * Birthday, 24th + 31st December off * Short term EU work policy * Mobility Credit * Health Insurance * Employee assistance program   ---------------------------------------------------------------------------------------------------------------------------------- DIVERSITY, EQUITY & INCLUSION: FREE NOW is an equal opportunity employer and we consider qualified applicants regardless of race, religion, national origin, gender, gender identity, sexual orientation, disability or age. We want you to grow and evolve, bring your true self to work. ABOUT US: Freenow by Lyft empowers smarter mobility decisions, helping people to move freely and cities to thrive. Through our multi-mobility app, we feature broad options for everyone across 9 European markets and over 180 cities. Millions of passengers can access services including taxis, private hire vehicles, carsharing, car rental, e-scooters, e-bikes, e-mopeds, and public transport within a single app.  In July 2025 Freenow was acquired by Lyft, a global mobility platform, which connects riders and drivers for billions of rides across North America and Europe. Together, Freenow and Lyft are creating a more caring and connected world, with transportation for everyone. We are a global, diverse, highly motivated, and collaborative team that strives for excellence and likes to have fun. Ready for your next ride? ---------------------------------------------------------------------------------------------------------------------------------- SEE WHAT OUR AWESOME COLLEAGUES SAY ABOUT US:                 ----------------------------------------------------------------------------------------------------------------------------------

Paloma Health

Time commitment: Full-time.           Location: Hybrid is preferred, working 2 days in the London office (Wednesdays and Thursdays) and 3 days at home per week.  Reporting to: VP of Technology, Avishai Gurt About Paloma Paloma’s mission is to make children’s autism and ADHD assessments and care available on the NHS within 4 weeks of GP referral. We are making this possible by setting a new standard for high-quality autism and ADHD care, building great software & AI tools, and investing in clinicians' learning & development.   Mark and Darshak founded Paloma due to their frustration that families are waiting 4-10 years for NHS children’s autism and ADHD assessments. This crisis in NHS children’s neurodevelopmental services has been highlighted by the Children’s Commissioner for England here: https://www.childrenscommissioner.gov.uk/blog/childrens-commissioner-warns-of-invisible-crisis-as-delays-and-inequalities-laid-bare-among-children-with-neurodevelopmental-conditions/   Since launching, we have: * Grown a fantastic team of 120 people, of whom over 80 are clinicians supporting families through their assessment journey.  * To meet the needs of families, we are recruiting >100 more people in the next 12 months * Raised £5m pre-seed funding from leading healthcare investors (Triple Point Ventures and Heal Capital), helping us to invest in our technology and our team * Achieved financial sustainability   How is Paloma Health different from other Neurodevelopmental providers? * Our clinical quality: We are clinically led, Care Quality Commission (CQC)- registered, measure our outcomes, and continuously improve our pathway for families and clinicians. * Our internal product & engineering team, who build fantastic software to: * Give families a fantastic consumer-like experience of healthcare * Free our clinicians from documentation to focus on supporting families * Our strong culture: including transparency, a sense of community, and supporting staff career development * The experience of our founders, Dr Mark Jenkins & Darshak Shah: who have previously built tech-enabled NHS obesity and ophthalmology services. Combined, their previous companies have treated over 1 million NHS patients in the last 15 years!   The opportunity Do you want to finish every day knowing you directly improved the lives of children and families by speeding up access to NHS children’s autism and ADHD assessments? Would you like the freedom to work using the latest AI tools for software development?   If yes, come join Paloma’s team of 7 software engineers and 3 product experts!    As a Fullstack Engineer, you will own specific workstreams to continuously improve the Paloma Portal, our AI-powered patient pathway and Electronic Patient Record (EPR) software. This software ensures Paloma can give families fast access to an autism or ADHD assessment and supports our clinicians to maximise time with families rather than on documentation.   As we are a rapidly scaling organisation, you will have multiple opportunities to develop. With demonstrated success in the role, you can progress to a Senior Fullstack Engineer.   Responsibilities Collaborate with cross-functional teams, including engineering, product, clinical, and support, to develop and implement the company's technical vision. This includes: * Write clean, maintainable, and efficient code across the full stack in C# or TypeScript. * Create and integrate with RESTful APIs for internal and external use. * Developing complex interfaces using ReactJS and TypeScript. * Develop, deploy, and maintain scalable, resilient cloud-native applications on platforms such as AWS or GCP.  * Translating product and business requirements into solid technical solutions. * Participate in code reviews and contribute to improving software development processes and culture. * Build your own knowledge and skills to create AI and/or agent-based applications where appropriate, e.g. for intelligent process automation, data collection, and user assistance.   Qualifications and experience * Bachelor's or master's degree in Computer Science, Engineering, or a related field. * A minimum of four years of technical experience working in a company, preferably in a fast-paced environment, e.g. in scaleups * Able to communicate clearly and efficiently within our product & engineering team   Technical skills and experience should include: * Proficiency in C# and TypeScript (Java or Python is a plus). * React.js and Single-Page Application development. * Developing and deploying containerised applications within the context of cloud platforms (ideally GCP) * Building event-driven systems. * SQL and management of SQL databases in a cloud environment. * Automating complex processes and user journeys, e.g. onboarding, triaging and scheduling. * Familiar with spec-driven development using AI tools like Claude Code, Cursor, or Windsurf.   Desired but not essential skills and experience include: * Developing agentic applications using LangGraph or Google ADK frameworks.  * Infrastructure as code (preferably Pulumi). * Integrating with MCP services. * Working within healthcare, including with health data and adhering to regulatory requirements.  * Monitoring and logging tools (Prometheus, Grafana). * Setting up RAG pipelines and embeddings.   Why join Paloma? You will be part of a mission-driven organisation that’s transforming access to autism and ADHD care in England. For all employees, we offer: * A strong and positive culture that prioritises staff well-being, transparency, and career development. This includes quarterly development conversations and clear career progression pathways. * Protected time and budget for team connection, learning, and community-building. * Comprehensive compensation, including: * Salary of £85,000 per year with some flexibility based on experience * Annual salary reviews, ensuring they are competitive * 5% employer pension contribution * Equity compensation through Share Options in Paloma Health  * Private Medical Insurance * Employee Assistance Programme * Home Office Equipment Allowance * Professional Registration Fees Allowance for clinicians * A unique annual leave benefits package which includes: * 37 days of annual leave. This is 28 standard days, plus eight bank holidays, plus your birthday off. * Option to buy an additional 5 days per year (giving a maximum of 42 days) * Where required, 2 days per year of special leave, for events that can happen in life, whether personal or family-related * Additional benefits include: * A premium performance company laptop * NHS discounts, including the Blue Light Card (as we are an NHS provider).   Equality & Diversity Paloma Health is an equal opportunity employer committed to diversity and inclusion in the workplace and throughout the application process. We do not discriminate based on any protected characteristic.   Accommodations We’re glad to accommodate candidates who need adjustments throughout the hiring process. We encourage you to be open about the adjustments you need, so we can adapt our interview process accordingly.   Safer Recruitment & Pre-Employment Checks Paloma Health ensures that supporting people to be safe is at the heart of our work and a key priority across all areas of the organisation. As part of our pre-employment checks, you will be asked to complete a Disclosure and Barring Service (DBS) check. Depending on your role within the business, this will be at either an Enhanced, Standard, or Basic level. We are committed to safer recruitment practices and expect all applicants to share our dedication to safeguarding. Our recruitment processes are designed to ensure we appoint individuals who align with our values and will help maintain a safe and supportive environment for everyone we work with.   Application process Please apply via our website. We understand that applying for a new job requires significant effort, and we appreciate your time. We look forward to reviewing your application.   Join us and be part of our journey to revolutionise access to NHS autism and ADHD care!