Senior / Lead Data Engineer

4 weeks ago

City of London Greater London, United Kingdom Sahaj Software Full time

At Sahaj Software, we’re not just shipping pipelines - we’re designing purpose-built data platforms that solve complex challenges for some of the UK’s most forward-thinking organisations. We believe in craftsmanship, autonomy, and trust. No hierarchies and no bureaucracy, just small teams solving big problems with modern tech. Why this role? As a Senior/Lead Data Engineer, you’ll own the design and delivery of scalable data platforms, pipelines, and architectures that power real business decisions. You’ll work closely with data scientists, engineers, and stakeholders to transform messy data into clean, reliable, and production-grade systems. This is a hands-on, high-impact role where you’ll influence technical direction while staying close to the code. Perfect if you want scope for growth without going “post-technical.” What you’ll do Design and build modern data platforms using Databricks, Apache Spark, Snowflake, and cloud-native services (AWS, Azure, or GCP). Develop robust pipelines for real-time and batch data ingestion from diverse and complex sources. Model and optimise data for performance, visibility, and downstream analytics/ML use cases. Champion best practices: CI/CD, TDD, GitOps, observability, schema validation, and data quality. Collaborate with data scientists and ML engineers to deploy production-grade AI/ML systems. Guide clients on data strategy, architecture, and platform modernisation. Mentor and influence engineers across Sahaj, helping grow our collective data engineering capability. What we’re looking for Solid experience as a Senior/Lead Data Engineer in complex enterprise environments. Strong coding skills in Python (Scala or functional languages a plus). Expertise with Databricks, Apache Spark, and Snowflake (HDFS/HBase also useful). Experience integrating large, messy datasets into reliable, scalable data products. Strong understanding of data modelling, orchestration, and automation. Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerisation (Docker, Kubernetes). A craftsman’s mindset: you care about code quality, maintainability, and doing things the right way. What you’ll get at Sahaj Unlimited annual leave – we trust you to manage your time. Open salaries & stock options – transparency from the ground up. Private health & life insurance – covered by us. Flat structure, no hierarchy – you own your work, and your voice counts.

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