Senior Full Stack Developer

DataArt; Polska; Hybrid; PLN 435,000 - 672,000; Full time

Job summary

DataArt is seeking a Senior Full Stack Developer to join our engineering team. You will contribute to both backend and frontend development for a mature, enterprise-grade product used by organizations worldwide.

Collaborate closely with product managers, QA specialists, SRE teams, and engineers to deliver scalable, reliable solutions while tackling complex technical challenges. The project focuses on advanced reporting, data visualization, and analytics integrations across popular collaboration

Qualifications

• 5+ years of commercial experience in full-stack software development.
• Strong backend experience with Java and Spring (Boot, MVC, Data).
• Experience designing and implementing APIs.
• Solid knowledge of relational databases, particularly PostgreSQL.
• Strong proficiency in React with hooks and TypeScript.
• Experience with state management libraries (MobX/Redux or similar).
• English at upper-intermediate level or higher (B2+).

Responsibilities

• Design, develop, and maintain features across backend and frontend components.
• Build and improve the existing codebase.
• Develop integrations with third-party tools and external systems.
• Create unit and integration tests to ensure quality.
• Collaborate with Product Managers, Engineers, QA, SRE, and stakeholders.

Skills

Communication

Problem-solving

Ownership

Tools

Java

Spring

React

TypeScript

PostgreSQL

AWS

Kubernetes

CI/CD

Terraform

Job description

We are looking for a passionate Senior Full Stack Developer to join our engineering team. In this role, you will contribute to both backend and frontend development, working on a mature customer-facing product used by organizations worldwide. You will collaborate closely with product managers, engineers, QA specialists, SRE teams, and other stakeholders to deliver scalable, reliable, and high-quality solutions while solving complex technical challenges.

The project focuses on building enterprise-grade solutions that provide advanced reporting, data visualization, and analytics capabilities integrated with widely used collaboration and work management platforms. The product serves a large global user base and continues to evolve with new features aimed at improving productivity, decision making, and user experience.

• Design, develop, and maintain new features and modules across backend and frontend components
• Support, enhance, and continuously improve the existing codebase
• Build deep product knowledge, including its integrations, data flows, and ecosystem
• Investigate and troubleshoot technical issues, working closely with support teams to provide end-to-end solutions
• Collaborate with Product Managers, Software Engineers, QA Engineers, SRE teams, and other stakeholders throughout the development lifecycle
• Create unit and integration tests to ensure software quality and reliability
• Participate in peer code reviews and promote engineering best practices
• Develop and maintain integrations with third-party tools and external systems

• 5+ years of commercial experience in full-stack software development
• Strong backend expertise with Java and Spring (Boot, MVC, Data)
• Experience designing and implementing APIs
• Solid knowledge of relational databases, particularly PostgreSQL, including debugging performance and data-related issues
• Strong understanding of OOP principles, design patterns, and Test-Driven Development (TDD)
• Hands-on experience building production-grade applications with React, including hooks, component composition, and performance optimization
• Strong proficiency in TypeScript, including advanced typing and type-safe application design
• Experience working with state management libraries such as MobX, Redux, or similar solutions
• Good understanding of modern build tools and frontend tooling, including Vite or Webpack
• Strong analytical and problem-solving skills with the ability to investigate unfamiliar technical challenges
• High level of ownership and ability to work independently in a remote environment
• Ability to start tasks with incomplete specifications and refine requirements during implementation
• Upper-intermediate (B2+) or higher level of spoken and written English
• Strong communication skills and ability to collaborate effectively in an international environment

• Experience developing applications within the Atlassian ecosystem (e.g. Atlassian Forge)
• Familiarity with analytics, reporting solutions, or data integration protocols
• Experience working with AWS services (EC2, ElastiCache, RDS), Kubernetes, and CI/CD pipelines
• Knowledge of performance optimization techniques and secure coding practices
• Experience supporting customer-facing products and collaborating with support teams