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Full Stack Engineer .NET and React

DOOR3
Contract
Remote

We are looking for a highly skilled Full Stack Engineer with deep experience in .NET and React, The ideal candidate combines strong technical capabilities with a pragmatic approach to software design and delivery, the ability to communicate effectively with both technical and non-technical stakeholders. Experience or interest in AI tools and modern ML-based solutions is a strong plus.



Essential Job Duties:

  • Develop and maintain backend services using .NET, with occasional work on Node.js-based components.
  • Design and build modern SPAs using React and TypeScript with a focus on reusability and performance.
  • Collaborate cross-functionally with designers, product managers, and other engineers to deliver high-impact features.
  • Participate in architectural decisions, code reviews, and mentorship of mid- and junior-level developers.
  • Build and integrate scalable APIs and third-party services (e.g., Stripe, OpenAPI-based clients).
  • Ensure the codebase adheres to best practices including SOLID principles, clean code, and scalable architecture.
  • Participate in agile development processes, including sprint planning, retrospectives, and standups.
  • Troubleshoot complex issues across the stack, from the browser to backend services and infrastructure.
  • Contribute to infrastructure decisions including CI/CD, containerization, and deployment in AWS/Kubernetes environments.
  • Experience in end-to-end feature life cycle ownership from product requirements to architecture and design to development and testing.
  • Optionally support or experiment with integrating AI-based tools into engineering workflows or product functionality.


Required Skills & Experience:

  • Experience integrating payment systems, like Stripe or other payment processing platforms.
  • Exposure to OpenAPI/Swagger for client/server code generation.
  • Experience in .NET Core APIs or transitioning between monolith and microservices architectures.
  • Familiarity with AI/ML concepts, tools, and frameworks (e.g., LangChain, Hugging Face, OpenAI API).
  • Prior work on eCommerce, enterprise, or high-load data-intensive applications.
  • Experience with event-driven systems (e.g., RabbitMQ, Kafka).
  • Familiarity with GraphQL or other modern API paradigms.


Personality profile and soft skills

  • Excellent communication skills – able to translate technical solutions to non-technical stakeholders.
  • Strong collaboration and mentoring mindset – enjoys working with others and sharing knowledge.
  • Curious and proactive learner, especially around new tech and architectural patterns.
  • Pragmatic problem-solver who prioritizes delivery and business impact over technical complexity.
  • Comfortable working in remote/distributed teams and agile environments.
  • English proficiency: Intermediate (B1+) or higher across all four skills.


Working Arrangement: European time zone, 40-hour work week, engaged via a contractor's agreement.