Join the client’s team in the cutting-edge AI security startup industry as Senior Full-Stack Engineer (NodeJS + React).RESPONSIBILITIES Design and build our scalable enterprise-grade control plane using industry best practices focusing on quality, performance, and delivery. Write well-crafted, tested, readable, and maintainable code. Participate in code design, code review, and distribution knowledge. Develop distribution and deployment tools for different platforms. Collaborate with data-scientists, product managers and other team members to ensure high-quality and timely deliverables. Take end-to-end ownership of your deliverables REQUIREMENTS 7+ years of experience in software development 5+ years of experience with Node.js Understanding of front-end concepts and technology (React, TypeScript) Experience with relational databases (such as PostgreSQL) Familiarity with cloud-native development practices Excellent communication skills Organized and self-driven Familiarity with Agile development methodologies Ability to work in high-paced and dynamic start-up environments  An all-star team player with a “can do” attitude NICE TO HAVE Experience with building CI/CD pipelines over Github Actions Experience building production-grade Node.js-based applications (preferably with TypeScript) Familiarity with LLM-based applications (LLM APIs, orchestration tools, Vector DBs, RAG) Integrating ML/AI models into production Participated in the Hackeriot mentorship program. (as a mentor or mentee) Past experience building B2B products BSc in Computer Science or equivalent Former management experience WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract. 100% remote work . The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care, life insurance, Multisport card).  WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE?Application: Apply and submit your CV.After the application review, the recruiter will contact selected candidates by phone.Screening: Have a conversation with a speedapp recruiter about your experience.Next steps: The speedapp recruiter will explain the recruitment process for the specific position.The speedapp recruiter will stay in touch with you throughout the entire process.ABOUT SPEEDAPPAt speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them.👉 10 years of experience👉 +100 clients worldwide +300 hires per year💎 We have won the prestigious 'Forbes Diamonds' award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.DO YOU HAVE ANY QUESTIONS?Contact the recruiter responsible for this process directly.Aleksandra MazurSenior IT [email protected]