Senior Backend Engineer: AI-Powered Data Matching

People AI; Polska; On-site; PLN 180,000 - 300,000; Full time

Job summary

Backstory, headquartered in San Francisco, is seeking a Senior Software Engineer to design and implement backend services and data pipelines powering its revenue intelligence platform. You will work with large-scale data, build data-driven features, and contribute to AI-driven product development in a fast-growing environment.

You will collaborate across teams to ensure robust testing, performance and cost efficiency, and to deliver scalable systems that surface actionable insights for business

Qualifications

• 5+ years of professional experience on backend systems in an enterprise environment.
• 3+ years in data analysis / data science tasks and/or ML.
• 2+ years programming in Python 2.x/3.x or Scala or Java.
• Experience with AI development tools is a plus.
• Experience developing systems based on LLM is a plus.
• Understanding of SOA, microservices, and event-driven architecture.
• Experience with enterprise-grade stacks for scalable web apps including messaging broker, in-memory stores, NoSQL, and key-value databases.
• Strong knowledge of TDD, Unit, and automated test paradigms.
• Experience with SQL and RDBMS solutions.
• Experience with large-scale data processing (Spark).

Responsibilities

• Design and implement core backend services and data pipelines.
• Perform data-driven research using big data and leveraging Data Science toolset.
• Document design choices and operational knowledge to successfully deploy and run services.
• Provide appropriate test coverage, unit and integration testing, with focus on performance and cost efficiency for your feature ownership areas.
• Ensure robust alerting, dashboards, and runbooks for production services are in place.
• Collaborate within the team and with other engineering teams to build new features and products according to business needs.
• Follow software design and development best practices and promote such practices in the team.

Skills

Backend development

Data analysis / ML

Programming languages

Testing practices

Data processing

Tools

Spark

NoSQL databases

SQL & RDBMS

Messaging systems

Python

Java

Scala

Job description

Backstory, headquartered in San Francisco, is seeking a Senior Software Engineer to design and implement backend services and data pipelines powering its revenue intelligence platform. You will work with large-scale data, build data-driven features, and contribute to AI-driven product development in a fast-growing environment.

You will collaborate across teams to ensure robust testing, performance and cost efficiency, and to deliver scalable systems that surface actionable insights for business