Hybrid Senior Software Engineer I, Senior Data Engineer I – Data and Reporting

at SpotOn

• Job title: Senior Software Engineer I, Senior Data Engineer I – Data and Reporting
• Job type: Full Time
• Experience level: Senior
• Salary: PLN 19,500 - PLN 24,400 per month
• Degree requirement: Bachelor's Degree
• Tech skills: AWS, Cloud, Distributed Systems, Docker, ETL, Grafana, JavaScript, Kafka, Kubernetes, MongoDB, Next.js, Postgres, Python, React, SQL, TypeScript
• Location requirements: Hybrid, Krakow, Poland

About the role

• Senior Software Engineer designing and maintaining scalable data solutions for restaurant tech industry at SpotOn. Collaborating with cross-functional teams to enhance reporting and analytics platforms.

Responsibilities

• Architect, develop, and maintain scalable software solutions for our reporting and analytics platforms.
• Design and implement data pipelines, ETL processes, and integrations using ClickHouse, Streamkap, PostgreSQL, Snowflake, MongoDB, Kafka, and AWS.
• Write and Optimize SQL queries that drive merchant reporting outcomes and improve database performance across large-scale, distributed systems.
• Contribute to defining and refining system architectures, including cloud infrastructure and containerization strategies.
• Implement robust data observability monitoring, logging, and alerting solutions using tools like Grafana, Metaplane, and OpenTelemetry.
• Mentor junior and mid-level engineers, promoting technical excellence and best practices.

Requirements

• 5+ years of professional software and data engineering experience.
• Proficient in Python; experience with GO and TypeScript or JavaScript is highly beneficial.
• For candidates located within approximately 50 km of the Kraków or Gdańsk offices, we offer hybrid model (2–3 times per week). For candidates based in other cities in Poland we offer opportunity to work remotely.
• Extensive experience with databases and data warehouses such as ClickHouse, PostgreSQL, and MongoDB.
• Strong understanding of real-time data streaming and messaging systems, especially Kafka.
• Experience designing and implementing robust ETL pipelines and handling large-scale data migrations.
• Familiarity with cloud services, especially AWS, including IAM roles, S3, RDS, and MSK.
• Proven ability in performance tuning and optimization for high-volume, low-latency data systems.
• Experience applying core data observability principles to create a transparent and resilient data platform.
• Comfortable with containerization technologies such as Docker and orchestration tools like Kubernetes.
• Strong experience with infrastructure as code (IaC) tools and best practices.
• Deep understanding of software development best practices, CI/CD pipelines, and DevOps methodologies.
• Perfect candidate also has:
• Experience in building frontend components or familiarity with React and Next.js.
• Knowledge of monitoring and observability tools, including Grafana and OpenTelemetry.
• Background or interest in data analytics, machine learning applications, and causal analysis.
• Experience in the restaurant or hospitality technology sector.

Benefits

• Competitive pay: 19 500 - 24 400 PLN net on B2B.
• Training budget 3500 PLN gross per year.
• Access to e-learning platforms (O’Reilly).
• Fully paid private healthcare in LuxMed.
• Access to the Worksmile platform with a monthly top-up.
• Subsidized access to breakfast and lunch through the vending machine in Kraków office, and lunches in Gdańsk office once a week.
• Group English classes with a native speaker.
• New Macbook Pro, 4K monitors or whatever tools you need.
• Flexible working hours.
• New, modern, bright and comfortable office space in the city centre.
• A lot of free parking spots around the office.
• Access to the company’s library.
• Great working atmosphere.
• Chill out room with a PlayStation and games.
• Free snacks and beverages in a kitchen.
• Company parties and social activities.
• Employee referral program.
• Relocation Package within Poland.