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Senior Full-Stack Engineer (React, Node.js) at Dreamix Ltd.. Dreаmix was founded 19 years ago by passionate IT students, who wanted to create the dreamiest workplace where everyone is heard, works under transparent management, and lives up to their full potential. Now, many years later, we deliver software solutions for renowned companies from Germany, the UK, Switzerland, and Silicon Valley. Dreamix provides quality software services and products for top enterprises around the world through Java and Web technologies.. We believe the employer-employee relationship must be in the form of a partnership, not a transaction. You can be sure that we’ll invest as much as we can in your development, but we expect the same commitment to Dreamix. Our culture is defined by our actions not by what we say.. We are seeking a . Senior Full-Stack Engineer. to join our team. As a key technical expert, you will be responsible for designing, developing, and maintaining high-performance software solutions that ensure reliability, scalability, and efficiency.  . Responsibilities:. . Design, develop, and maintain high-performance full-stack web applications using Next.js 15 (React 19), deployed on Vercel.. . Implement modern user interfaces using TailwindCSS and shadcn/ui (built on Radix UI).. . Integrate and manage authentication flows using Clerk or equivalent identity providers (e.g., AWS Cognito, Auth0, Kinde, Keycloak).. . Design scalable data models in AWS DynamoDB using both multi-table and single-table design patterns. . . Manage secure document storage and delivery using AWS S3, CloudFront, and AWS WAF.. . Develop and integrate serverless APIs using AWS Lambda with ALB, Lambda URL, or API Gateway.. . Collaborate on backend API integrations (Python FastAPI) without requiring hands-on Python development.. . Contribute to infrastructure deployments using AWS CloudFormation and The Serverless Framework.. . Support AWS networking configurations (VPC peering, PrivateLink) for secure application environments.. . Learn and apply healthcare data standards (FHIR, openEHR) for handling PII and PHI, with training provided.. . . Requirements:. . Minimum 5+ years of professional experience developing frontend applications using React.. . Strong expertise with Next.js (v13+), ideally Next.js 15 (React 19).. . Experience deploying to Vercel.. . Solid knowledge of TailwindCSS (experience with shadcn/ui is a plus).. . Hands-on experience with AWS DynamoDB, S3, CloudFront, and Lambda.. . Experience with serverless APIs (Lambda + ALB, Lambda URL, or API Gateway).. . Familiarity with authentication systems such as Clerk, AWS Cognito, or Auth0.. . Proven track record of delivering high-quality, scalable applications in production environments.. . Experience working in Agile/Scrum environments.. . Strong problem-solving skills and the ability to make technical decisions that balance innovation with business needs.. . Proficiency in written and spoken English.. . Nice to have:. . Knowledge of AWS networking (VPC, PrivateLink).. . Exposure to IaC (CloudFormation, Serverless Framework).. . Experience with healthcare data standards (FHIR, openEHR) – training provided.. . . What you’ll get:. . A warm and supportive work environment where you can reach your full potential.. . Flexible working hours that allow you to balance your work and personal life.. . Unlimited home office to help you stay productive and focused.. . Opportunities for professional development, including certifications and training.. . Additional benefits for academic teaching and speaking engagements.. . Knowledge-sharing sessions where you can learn from our Dreamix team.. . Team and company-wide events that bring us together.. . Amazing week long summer office and winter office initiatives.. . Additional health insurance and dental allowance to ensure your well-being.. . Multisport card to encourage a healthy and active lifestyle.. . Office massages to help you relax and unwind.. . Send us your . CV. if you are interested in this opportunity. . Only shortlisted candidates will be contacted. The confidentiality of all applications is assured!. By applying for this job, you voluntarily agree and submit your personal information. Any personal data that you provide will be processed in strict confidentiality by Dreamix ltd. only for the purposes of selection and recruitment and will not be transferred to other data controllers unless required by law. It will be stored, processed, retrieved, and deleted in accordance with the GDPR.. Company Location: Bulgaria.