




Job Summary: Flat 101 is seeking a Symfony Developer for its development team to participate in building, evolving, and maintaining backend solutions. Key Highlights: 1. Collaborative and technically demanding environment 2. Real professional development with personalized career plans 3. A benchmark, collaborative, and diverse team DESCRIPTION At Flat 101, we are international leaders in designing, creating, and optimizing digital products and services. We partner with leading companies to accelerate their growth through **BXOp (Business eXperience Optimization)** — our proprietary approach that combines data, technology, design, and business, with a clear focus on real impact. We are looking to bring on board a **Symfony Developer** who wants to continue growing within a collaborative, technically demanding, and purpose-driven environment. #### **What will be your mission?** You will join the development team and participate in building, evolving, and maintaining robust and scalable backend solutions, working closely with design, CRO, analytics, and development professionals. #### **This will be your day-to-day:** * Development and maintenance of backend applications using **Symfony**. * Design and implementation of scalable APIs and services. * Participation in technical decision-making and architecture definition. * Collaboration with multidisciplinary teams in agile environments. * Performance optimization, code quality improvement, and adherence to best practices. * Analysis and resolution of technical incidents. * Occasional coordination with client teams, with **willingness to attend client offices in Madrid as required by the project**. REQUIREMENTS #### **Who are we looking for? Someone who matches these skills:** * Professional experience developing with **PHP and Symfony**. * Solid knowledge of backend architecture and design patterns. * Experience working with REST APIs. * Proficiency with relational databases (MySQL, PostgreSQL). * Experience with version control (Git) and CI tools such as Jenkins. * Ability to work collaboratively and communicate clearly. * Residence in **Madrid** or surrounding areas. #### **Nice-to-have qualifications:** * Experience designing decoupled architectures and/or microservices * Experience with Kubernetes. * Experience in cloud environments. * Interest in continuous improvement, technical excellence, and best practices. * Prior experience in agency settings or projects with end clients. #### **Why us? Here’s what Flat 101 offers you:** * **Real professional development:** personalized career plans, annual performance reviews, access to specialized training, and ongoing mentoring to strengthen your strengths and help you achieve your goals. * **Flexibility and work-life balance:** intensive schedule from 8 a.m. to 3 p.m. \+ 1 flexible hour in the afternoon, summer intensive and reduced schedule (8 a.m. to 3 p.m.), and full trust to manage your time responsibly. * **27 working days of vacation:** we believe rest is essential, so we offer 5 extra days beyond the collective agreement. You’ll have full flexibility to choose your vacation dates. * **Flexible work arrangements:** remote, hybrid, or onsite — depending on team and project needs. We champion trust and autonomy in choosing the best way to work. Occasional attendance at client offices in Madrid is required. * **Top-tier projects:** national and international projects with leading digital-sector clients, where you can apply your talent and keep learning every day. * **Learning and knowledge sharing:** internal and external trainings, research studies, mentorships, and an open-books culture that fosters collective growth. * **A benchmark and collaborative team:** diversity, mutual support, and proven expertise in CRO, analytics, design, and product. An environment where communication, empathy, and camaraderie are genuine. * **Diversity and equality:** we advocate for inclusive and equitable teams proud of their ideas. Flat 101 is an organization committed to equal pay and fair treatment. We believe diversity is a fundamental pillar of organizational pluralism. * **Culture and DNA:** collaboration, teamwork, transparency, respect, and flexibility form our foundation. Innovation, continuous improvement, and empathy drive us, creating an environment where ideas are valued and people grow. * **Innovation and knowledge dissemination:** we create nationally and internationally recognized research studies. We integrate artificial intelligence into our daily work to boost efficiency, creativity, and excellence. * **A unique atmosphere:** close-knit, inclusive, motivating, and fostering a strong sense of belonging. You’ll work alongside passionate and committed people. * **Extra perks and benefits:** flexible compensation plan (private health insurance, meal vouchers, transportation allowance, childcare assistance), financial bonuses, and event participation support. We are a people-first company where the entire team is regularly consulted on corporate decisions. We aim to build and consolidate the best possible company — one that serves as a professional, human, and ethical benchmark… and we’d love to have you on board. Are you in?


