Backend Software Engineer

Mid • Hybrid

$15,330 - $21,000/

Kraków, Poland

We are currently seeking an experienced Backend Software Engineer to join Kraków Hub. Our ideal candidate is someone who thrives in a high growth environment with rapidly evolving needs. This individual will contribute to our forms platform, working across multiple codebases including our legacy PHP system, modern Python-based AI agents, and frontend components. You don’t have to check all the checkboxes in the job description. We’re looking for driven and curious engineers who are open about learning new technologies and solving problems.

What your day could consist of:

Supporting forms platform
Maintaining and enhancing form rendering, processing, and submission logic in our PHP application
Contributing to our AI-powered form generation
Enhancing AI-driven form optimization and personalization features
Developing features in the forms dashboard and form builder
Optimizing form rendering and user experience
Working with cross functional teams
Engaging in pairing and code reviews
Participation in the on-call rotation for incidents

What is needed:

4+ years of work experience in a software engineering role.
Demonstrated knowledge of the challenges of scaling SaaS systems
Experience writing production code in PHP following accepted coding standards
Experience with Python for backend services
Familiarity with DB technologies: MySQL, DynamoDB, Redis
Strong problem-solving skills and ability to work across multiple codebases and technologies

Nice to have:

Experience or interest in frontend technologies such as React or Angular
Experience or interest in AI/ML system or LLM integrations
Familiarity with CI/CD practices and patterns
Knowledge of AWS (or any public cloud)
Understanding of form builders

ActiveCampaign

ActiveCampaign is a company operating in the software industry, specializing in customer experience automation. It is known for its innovative approach to integrating email marketing, marketing automation, and CRM tools to help businesses grow and engage with their customers effectively. The company values innovation, collaboration, and continuous learning, fostering an environment where employees are encouraged to explore new technologies and solve complex problems. ActiveCampaign is a high-growth company, indicating a dynamic and rapidly evolving work environment. It is committed to leveraging AI and modern technologies to enhance its product offerings, particularly in areas like form optimization and personalization. The company is also characterized by its cross-functional team collaboration and emphasis on maintaining high coding standards across its platforms.