Fullstack Engineer

At DAC.digital, we are constantly growing our business. As part of our growth strategy, we are strengthening our strategic partnership with a leading AI operating system provider.

Key information:

Salary: 24 000 - 27 00 PLN net/month - pure B2B contract

Working hours: New York working hours

Start date: early November

It is vital that you have:

• fluency in English (min. C1);
• proficiency in Python and FastAPI for building RESTful services (OpenAPI, auth, middleware);
• experience with agentic AI;
• strong experience with PostgreSQL (schema design, indexing, query optimization, migrations);
• proficiency in React and TypeScript, with solid HTML/CSS skills (responsive layouts, accessibility);
• familiarity with CI/CD pipelines for web apps (linting, testing, build and release automation);
• comfortable with Git-based workflows and modern development practices (code review, formatting, static typing);
• solid debugging and performance tuning skills across database, API, and frontend layers;
• experience building and maintaining production web applications and platforms.
• demonstrated ability to take features from design through implementation, testing, and deployment;
• experience collaborating with frontend, backend, and product teams on cross-functional projects;
• working in agile methodologies (Scrum, Kanban);
• high communication skills;
• eager to learn and share knowledge;
• willing to travel if necessary (conferences, coworking events, etc.).

Nice to have:

• hands-on experience with Docker and Kubernetes for local development and deployment (Helm/ArgoCD a plus);
• experience with caching/queues (e.g., Redis) and background jobs.
• familiarity with monitoring and observability stacks for web systems (logs, metrics, dashboards, alerts);
• exposure to security best practices (OWASP, CSRF/CORS, secrets management) and rollback strategies.

Technology stack:

• Python
• Agentic AI
• FastAPI
• PostgreSQL
• React
• TypeScript
• HTML/CSS
• CI/CD
• Git

You will be responsible for supporting our team in:

• design, build, and maintain scalable web infrastructure using FastAPI and PostgreSQL, ensuring robust API versioning, migrations, and deployment workflows across multiple environments;
• collaborate with frontend and backend teams to deliver production-ready APIs, UI components, and system integrations based on technical requirements;
• drive automation and system reliability by implementing CI/CD pipelines, test coverage (unit, integration, E2E), monitoring tools, and alerting systems;
• optimize system performance and cost by profiling bottlenecks across database, APIs, and React-based UI; implement caching strategies and efficient resource usage in cloud or hybrid setups;
• produce and maintain clear technical documentation, including API specs, coding standards, development workflows, migration guides, and troubleshooting runbooks.

What do we offer:

• possibility to work 100% remotely or on-site at our office in Gdańsk;
• real Agile practices;
• working in an international environment.