Simple Machines

• Own the end-to-end architecture of modern, cloud-native data platforms • Design scalable data ecosystems using **data mesh, data products, and data contracts** • Make high-impact architectural decisions across ingestion, storage, processing, and access layers • Ensure platforms are secure, compliant, and production-grade by design • Design and deliver cloud-native data platforms using **Databricks, Snowflake, AWS, and GCP** • Apply modern architectural patterns: **data mesh, data products, and data contracts** • Integrate deeply with client systems to enable scalable, consumer-oriented data access • Build and optimise **batch and real-time pipelines** • Work with streaming and event-driven tech such as **Kafka, Flink, Kinesis, Pub/Sub** • Orchestrate workflows using **Airflow, Dataflow, Glue** • Process and transform large datasets using **Spark and Flink** • Design systems that perform in production - not just on paper • Work across relational, NoSQL, and analytical stores (Postgres, BigQuery, Snowflake, Cassandra, MongoDB) • Optimise storage formats and access patterns (Parquet, Delta, ORC, Avro) • Implement secure, compliant data solutions with **security by design** • Embed governance without killing developer velocity • Work directly with clients to understand problems and shape solutions • Translate business needs into pragmatic engineering decisions • Act as a trusted technical advisor, not just an order taker • Set engineering standards, patterns, and best practices across teams • Review designs and code, providing clear technical direction and mentorship • Raise the bar on data quality, testing, observability, and operational excellence

Role Description This is a hands-on senior engineering role, not an architecture-only seat and not a support function. You’ll be responsible for technical direction, platform design and architectural decision-making. You'll design and build greenfield data platforms, real-time pipelines, and data products for clients who are serious about using data properly. You’ll work in small, high-calibre teams and operate close to both the problem and the client. If you enjoy solving hard data problems, shaping modern architectures (data mesh, data products, contracts), and delivering real outcomes — this is your lane. What You’ll Be Doing - Lead Platform & Architecture Design - Own the end-to-end architecture of modern, cloud-native data platforms - Design scalable data ecosystems using data mesh, data products, and data contracts - Make high-impact architectural decisions across ingestion, storage, processing, and access layers - Ensure platforms are secure, compliant, and production-grade by design - Build Modern Data Platforms - Design and deliver cloud-native data platforms using Databricks, Snowflake, AWS, and GCP - Apply modern architectural patterns: data mesh, data products, and data contracts - Integrate deeply with client systems to enable scalable, consumer-oriented data access - Develop High-Performance Pipelines - Build and optimise batch and real-time pipelines - Work with streaming and event-driven tech such as Kafka, Flink, Kinesis, Pub/Sub - Orchestrate workflows using Airflow, Dataflow, Glue - Work at Scale - Process and transform large datasets using Spark and Flink - Design systems that perform in production - not just on paper - Own Data Storage & Performance - Work across relational, NoSQL, and analytical stores (Postgres, BigQuery, Snowflake, Cassandra, MongoDB) - Optimise storage formats and access patterns (Parquet, Delta, ORC, Avro) - Cloud, Security & Governance - Implement secure, compliant data solutions with security by design - Embed governance without killing developer velocity - Consult and Influence - Work directly with clients to understand problems and shape solutions - Translate business needs into pragmatic engineering decisions - Act as a trusted technical advisor, not just an order taker - Technical Leadership & Quality - Set engineering standards, patterns, and best practices across teams - Review designs and code, providing clear technical direction and mentorship - Raise the bar on data quality, testing, observability, and operational excellence Qualifications - Strong Python and SQL - Deep experience with Spark and modern data platforms (Databricks / Snowflake) - Solid grasp of cloud data services (AWS or GCP) - Demonstrated ownership of large-scale data platform architectures - Strong data modelling skills and architectural decision-making ability - Comfortable balancing trade-offs between performance, cost, and complexity - Built and operated large-scale data pipelines in production - Strong data modelling capability and architectural judgement - Comfortable with multiple storage technologies and formats - Infrastructure-as-code experience (Terraform, Pulumi) - CI/CD pipelines using tools like GitHub Actions, ArgoCD - Data testing and quality frameworks (dbt, Great Expectations, Soda) - Experience in consulting or professional services environments - Strong consulting instincts — able to challenge assumptions and guide clients toward better outcomes - Comfortable mentoring senior engineers and influencing technical culture Benefits - You’ll work on interesting, high-impact problems - You’ll build modern platforms, not maintain legacy mess - You’ll be surrounded by senior engineers who actually know their craft - You’ll have autonomy, influence, and room to grow

• Design of sophisticated user interfaces for use by business stakeholders to manage a machine learning based marketing system • Implement design as a web application using React • Integrate with APis provided by the backend development team • Contribute to solution design workshops to advise on implementation approaches • Partner with client stakeholders, and team members, to gather business requirements, collaborate on design decisions, and translate them into technical and design requirements. • Operate within an iterative delivery team using Agile delivery tools and practices.

Role Description As a Senior Frontend Engineer at Simple Machines, you’ll be at the heart of groundbreaking projects, collaborating closely with both our talented internal team and forward-thinking clients. In this hands-on role, you'll drive the development of sophisticated, scalable solutions, working with our high-performing engineering teams to deliver user interfaces for products used by data science and ML teams. If you’re passionate about solving complex problems and pushing the boundaries of what’s possible, this role offers the perfect platform for you to make a real impact. Key Responsibilities - Design of sophisticated user interfaces for use by business stakeholders to manage a machine learning based marketing system - Implement design as a web application using React - Integrate with APIs provided by the backend development team - Contribute to solution design workshops to advise on implementation approaches - Partner with client stakeholders, and team members, to gather business requirements, collaborate on design decisions, and translate them into technical and design requirements - Operate within an iterative delivery team using Agile delivery tools and practices Qualifications - Strong written and verbal English - A consultative approach to software development and software engineering - Strong experience with frontend development tools including React.js, Redux, Tailwind, Typescript - Past project experience with large scale web services - Previously designed user interfaces that catered for complex business use cases - Experience eliciting business requirements and translating them into technical and design requirements - Familiarity with various git workflows and ability to tailor them to project needs - Experience of unit and integration testing and test automation for React - A passion and proven background in picking up and adopting new technologies on the fly Requirements - You must be based in Poland with citizenship or full-time working rights to be considered for the opportunity - This is a fully-remote role, on either a B2B or Permanent basis