Senior Software Engineer

ActiveCampaign

Associate Software Engineer at ActiveCampaign developing high-visibility features for the AC Platform. Collaborating with product design teams and other engineers.

Posted 5/6/2026full-timeKrakow • 🇵🇱 PolandSenior💰 PLN 224,000 - PLN 336,000 per yearWebsite

Tech Stack

Tools & technologies

AWSCloudDynamoDBMySQLPHPPythonRedis

About the role

Key responsibilities & impact

As an Associate Software Engineer, you will be working directly with one of our product teams to develop high-visibility features for the AC Platform.
Our software engineers contribute to AC by partnering with product design teams, working alongside other engineers to develop features, identify bugs, and implement key product changes to enhance our platform that serves our customers.

Requirements

What you’ll need

4+ years of work experience in a backend 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 or AI/agentic workflows
Familiarity with DB technologies: MySQL, DynamoDB, Redis
Strong problem-solving skills and ability to work across multiple codebases and technologies
*Nice to have:*
Experience building or integrating AI/ML systems, LLM-powered features, or agentic workflows
Deeper database expertise — query optimization, data modeling, schema design, or experience with data pipelines and analytics infrastructure
Familiarity with CI/CD practices and patterns
Knowledge of AWS (or any public cloud)
Experience with API design and platform/partner ecosystem development
Track record of identifying and delivering performance improvements in production systems
Experience with SaaS productization

Benefits

Comp & perks

Comprehensive Health & Wellness: Top-tier benefits package that includes medical and dental benefits paid 100% by ActiveCampaign for you and 50% for your dependents, and reimbursements on vision expenses. In addition, employees receive complimentary access to telehealth services, and a free subscription to Calm.
Growth & Development: Access to LinkedIn Learning, professional development programs, and career growth opportunities in a fast-growing organization.
Generous Paid Time Off: Recharge and take the time you need to maintain work-life balance.
Total Rewards: Pension scheme with matching up to 1.5% of your contribution, MultiSport Plus card to support your active lifestyle, home office stipend to cover your commuter or work from home expenses, and a four-week paid sabbatical with bonus after five years.
Collaborative Culture: Work alongside brilliant, passionate colleagues in an environment that values innovation, teamwork, and mutual support.

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Hard Skills & Tools

PHPPythonMySQLDynamoDBRedisAPI designquery optimizationdata modelingschema designCI/CD

Soft Skills

problem-solvingcollaboration