Full Stack Developer (Node.js, React, Typescript) @ Mindbox Sp. z o.o.

• Proven experience as a Full Stack Software Developer with solid engineering fundamentals.
• Strong foundation in Data Structures, Algorithms, Concurrency, and Software Design Principles.
• Proficiency in HTML, CSS, Sass, TypeScript, JavaScript and related web technologies.
• Expertise in React with Chakra UI, understanding UI/UX best practices.
• Experience developing backend services in Node.js with frameworks like Fastify or NestJS.
• Strong knowledge of REST API design principles and secure implementation.
• Relational database experience (SQL) and familiarity with ORM frameworks.
• Version control workflows in Git (branching, PRs, reviews, conflict resolution).
• Good understanding of Agile/Scrum, CI/CD practices, and DevOps principles.

Nice to have:

• Bachelor's or Master's degree in Computer Science, Software Engineering, or related field.
• Familiarity with Claude Code, AWS Bedrock and other AI/ML integration tools.
• Jenkins pipeline experience and knowledge of ArgoCD.
• Understanding of Kubernetes fundamentals, manifest definitions, and deployment processes.
• Experience with containerization using Docker/Docker-Compose.
• Front-end build tools: ESBuild, Vite.
• Hands-on with MariaDB/MySQL or Postgres.
• Knowledge of SSO (OIDC) authentication protocols.
• Python scripting and basic Linux/Unix terminal skills.
• Portfolio/GitHub profile showcasing past projects is highly desirable.

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

We are looking for a skilled Full Stack Developer (contract) to join our Global Networks Planning & Capacity team. You’ll be responsible for designing, developing, and maintaining mission-critical tools that support our global network portfolio. This role offers an opportunity to build scalable solutions and work across front-end, back-end, APIs, and data layers in an Agile environment.

Sounds like your kind of challenge?

What you get in return

• Flexible cooperation model – choose the form that suits you best
  (B2B, employment contract, etc.)
• Hybrid work setup – 2 office visits per month
• Collaborative team culture – work alongside experienced professionals eager to share knowledge
• Continuous development – access to training platforms and growth opportunities
• Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
• High quality equipment – laptop and essential software provided

Translate user stories and requirements into technical specifications and solutions. Collaborate with the team to evaluate feasibility and propose optimal designs. Create wireframes, prototypes, or system diagrams to illustrate technical concepts. Write clean, maintainable code using TypeScript, React, and Node.js. Develop and integrate RESTful APIs and backend services. Design and maintain database schemas, leveraging ORMs for consistency. Implement unit, integration, and end-to-end testing strategies. Monitor system performance and troubleshoot production issues proactively. Maintain thorough documentation for systems, services, and code components. Requirements: Data structures, HTML, CSS, Sass, TypeScript, JavaScript, Web technologies, React, UI, UX, Node.js, Nest.js, REST API, Relational database, SQL, ORM, Git, DevOps, Degree, AWS, AI, Jenkins pipeline, ArgoCD, Kubernetes, Docker, MariaDB, MySQL, PostgreSQL, SSO, Protocols, Python, Linux, Unix, GitHub