Principal Backend Engineer at Trading212

Our mission is to enable everyone to build wealth We reinvent how trading and investing work by creating exceptional products people love. Trading 212 is built by highly driven people who strive for excellence and value freedom. Today, we serve over 4.5 million clients, with more than €30 billion in assets under management - a testament to the scale and trust we’ve built in just a few years. We are looking for experienced and driven principal software engineers to help us scale and innovate. WHAT YOU’LL DO - Lead the technical development of an entire business domain. Engage in forming requirements, design the architecture, and lead the entire software development life cycle. - Lead a compact, autonomous, cross-functional team with short release cycles - we rely on agile, independent teams of sharp and driven people with just the right amount of processes to steer off anarchy and not sacrifice velocity. Find the most valuable strengths of your teammates and provide them with mentorship in order to develop them further. - Develop solutions by taking a holistic approach to problem-solving - we expect you to understand the business problems, our service architecture and the underlying technologies and infrastructure and take everything into consideration. - Develop for performance, scale and resilience – your code will run in an uncompromising environment. Downtime, latency and data loss are intolerable. - Take initiative to identify areas of product improvement. WHAT YOU NEED TO HAVE - Experience in leading the development and subsequent release of a complex/high-demand client-facing product. - Experience in leading, coaching, and mentoring software engineers towards delivering high-quality software together with them. - Experience with developing services in a microservice architecture.  - Advanced knowledge of at least two programming languages. - Deep understanding of RDBMS, messaging brokers and in-memory data storages. OUR TECH STACK - Languages and frameworks: Java 17 - Spring, Go - Databases: PostgreSQL, MariaDB, Redis, Elasticsearch, TimescaleDB, ClickHouse - Messaging: Apache Kafka - Web servers: Nginx, HAProxy - Containerization: Docker & Kubernetes - Logs & Monitoring: Grafana, Kibana, Telegraf WHAT WE OFFER - Challenges that will help you grow and realize your potential really fast - Opportunity to make a big Impact - you will build innovative services used by millions of investors to build wealth - Work with smart, spirited, helpful, high-performing colleagues with a common goal - An environment where nothing is set in stone - Appreciation for your talent and ideas - Generous remuneration package including annual bonuses - Excellent social benefits package, including private health insurance, sports card and 25 days of paid vacation per year - Delicious treats and a spacious game room Are you ready to accelerate your career with us? We'd love to hear from you! We thank all applicants, but only candidates selected for an interview will be contacted. We process applicant data confidentially and in accordance with applicable data protection laws. We may use AI-powered tools to help review applications, but all hiring decisions are made by our human recruitment team. Where required by law, we rely on your consent to use these tools. You may withdraw this consent or exercise your data protection rights at any time by contacting us.