Simple Machines

Accountant

• Support day to day, monthly and annual accounting activities
• Process accounts receivable invoicing on a fortnightly basis, including maintaining the time sheeting system and monitoring submission deadlines
• Follow up outstanding client invoices and support credit control to ensure payments are not overdue
• Process accounts payable invoices and ensure supplier payment due dates are met
• Process and reconcile company credit cards and staff reimbursements in line with policy and payment cycles
• Process and reconcile Australian, New Zealand and UK payroll on fortnightly and monthly cycles
• Prepare and provide monthly payroll updates to UK external payroll providers
• Maintain payroll related records and support payroll queries from staff
• Assist with monthly prepayments, accruals, journals, fixed assets and depreciation schedules
• Assist with general ledger maintenance and balance sheet reconciliations
• Support the month end close process under the direction of the Financial Controller
• Monitor and respond to daily communications in the Accounts inbox, resolving routine queries or escalating as required
• Provide back up support during periods of leave for other finance team members
• Support the wider finance team with administrative and operational tasks as required
• Assist the business with ad hoc finance and client related requests where appropriate

Assistant Accountant

QA Engineer

• The role will see you working on a range of projects for our enterprise clients, responsible for the strategy, implementation and delivery of high-quality software and platform solutions.
• You would be embedded into Simple Machines engineering teams, working closely with engineers and alongside our clients, driving quality standards and providing advice and execution support on all things Quality and Testing.

Senior QA Engineer – London, Warsaw

Platform Engineer

• 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**
• 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
• 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

Principal Data Platform Engineer

• 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**
• Work across relational, NoSQL, and analytical stores (Postgres, BigQuery, Snowflake, Cassandra, MongoDB)
• Implement secure, compliant data solutions with **security by design**
• 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

Assistant Accountant

Senior QA Engineer – London, Warsaw

Principal Data Platform Engineer

Senior Data Platform Engineer