26 to 47 of 47 ClickHouse Jobs in London

design scalable data flows, and contribute to the real-time data platform in a small, technically ambitious team. You will work with PostgreSQL and ClickHouse, mentor teammates, and influence architecture. Based in Europe, stay hands-on, ship features sprint to sprint, and help shape what gets built next with ...

version‐control workflows in a team environment Solid understanding of data structures, algorithms, and system design principles Nice‐to‐have Hands‐on experience with ClickHouse or another columnar/OLAP database Experience with Go or Rust, or strong aptitude to pick it up quickly Professional experience processing large volumes ...

Comfortable managing teams/projections with deadlines and short release cycles Experience using observability tools such as Jaeger, OpenTracing, ELK, Prometheus, Thanos, Grafana, Clickhouse Experience running and maturing distributed systems Familiarity working with Proxies, DNS, Databases, Internet and Security Experience developing tools and APIs What Makes Cloudflare Special ...

seeking a Systems Engineer to join the Security Rules team, working on Rust-based microservices with Docker, Go, PostgreSQL, Redis, Memcached, gRPC, Kafka, Clickhouse and Kubernetes. You will design, implement, and maintain scalable security software, participate in all stages of the development lifecycle, collaborate with security, network engineering ...

production code Strong foundation in operating systems and systems programming Proven track record in performance engineering Familiarity with tools like Apache Arrow, Parquet, DataFusion, Clickhouse, or DuckDB is a plus Understanding of cutting-edge ML infrastructure stack (e.g. PyTorch, CUDA) is also a plus Experience with Rust ...

About Aiven Aiven is the open source based data platform that builders trust to run PostgreSQL®, Apache Kafka®, ClickHouse®, OpenSearch®, ValkeyTM and more in production, on any cloud. Builders ship faster. Their companies run on data that stays available, secure and under control. The role You own the commercial ...

come with it: memory layout, cache behaviour, lock-free concurrency, kernel-bypass or FPGA work. Depth in another time-series or tick store (OneTick, ClickHouse, InfluxDB, Arctic or an in-house engine), or in array and functional languages (APL, J, OCaml, Haskell, Scala) where the thinking transfers directly ...

team in London or Lisbon. You will work on microservices written primarily in Rust, with technologies including Docker, Go, PostgreSQL, Redis, Memcached, gRPC, Kafka, Clickhouse and Unix/Linux tools. You’ll design scalable security solutions and operate in a fast-paced environment. You’ll collaborate across security, network ...

policy administration schema* Retrieval evaluation experience: you can show the quality curves you moved and explain what caused each step* Analytical data platform depth (ClickHouse or comparable) alongside the transactional and graph stores* Context engineering: treating the model's context window as a budgeted, engineered artifact rather than … self-hosted LangSmith and LangGraph Platform as the agent runtime and evaluation plane, model providers behind a swappable gateway seam, PostgreSQL with pgvector plus ClickHouse and S3-compatible object storage as the data platform, Neo4j Enterprise as the semantic knowledge graph, an agent memory plane serving episodic and precedent ...

scaling AI data centers and other energy-intensive industries. Responsibilities Own the reliability, performance, and scalability of Fuse's database infrastructure across Postgres and ClickHouse Build and maintain scalable, reliable data pipelines to support analytics, reporting, and product needs Own the design and evolution of analytical schemas, translating business … logic into structured, intuitive data models Migrate and transform data from Postgres into ClickHouse, ensuring performance and reliability Develop and maintain DBT models that reflect our business domain and make data easily accessible for teams Implement tests and data quality checks to ensure reliable and trustworthy datasets Identify ...

using Java and Python Build modern web interfaces using Angular, React, and related technologies Work with PostgreSQL and contribute to the planned integration of ClickHouse for analytical workloads Improve the platform’s performance, reliability, observability, and engineering practices Own features end to end, from technical design and implementation through … delivery Clear communication skills and experience collaborating with Product Managers, engineers, and business stakeholders Experience with financial systems, intraday P&L, positions, risk, or ClickHouse is beneficial but not essential #J-18808-Ljbffr ...

About Refractal Refractal is an AI security company building the infrastructure organisations need to defend against autonomous AI threats. 2026 has shown that generally capable intelligence is here. The challenge now is modernising security to ...

Role We are looking for a ClickHouse Solutions Architect to join our team supporting the design and implementation of a greenfield, enterprise-scale ClickHouse observability platform for a global banking client. This is a genuine greenfield build at significant scale — there is no incumbent platform to inherit … workload characteristics — query patterns, latency targets, concurrency, ingest volume and velocity, retention and cost envelope Translate those into a target-state architecture: deployment model (ClickHouse Cloud vs self-managed on Kubernetes/VMs), cluster topology, shard and replica strategy, Keeper configuration, storage tiering Design the data model — table engine ...

agentic AI capabilities: how the system plans, calls tools, and retrieves the right data at the right time Working directly with PostgreSQL and ClickHouse to enable fast, reliable data retrieval for AI-driven analysis at real scale Taking a feature from a founder's rough idea to something live … stay fast and correct under real investor usage, not a demo Two different database workloads in the same system: PostgreSQL for transactional data, ClickHouse for the columnar, analytics-heavy queries behind the AI insights AI coding tools (Cursor, Claude) are part of the actual day-to-day workflow ...

APIs, MySQL schemas, React web apps, React Native mobile Design scalable pipelines processing millions of Stripe webhooks through AWS Lambda Optimize MySQL queries and ClickHouse analytics for dashboards rendering 100k+ transactions Collaborate with design on beautiful, data-rich experiences using Tailwind CSS Own the full lifecycle: ideation, implementation, deployment … love Strong communication and collaboration skills—we're a small team, everyone's voice matters Bonus Points AWS Lambda, SQS, or other serverless experience ClickHouse, BigQuery, or other analytics database experience Built analytics dashboards or data visualization tools Worked at an early-stage startup and lived to tell ...

Staff Data Platform Engineer Large-scale data/Cloud infrastructure | ClickHouse/OLAP | Technical Leadership No Sponsorship Option London or Oxford, X2 per week £100,000-£130,000 We're looking for a Staff Data Platform Engineer to take technical ownership of a large-scale analytical data platform, tackling … Service offering, and help a small team deliver highly reliable systems. The Role Large-scale data engineering: Design, optimise and scale multi-tenant ClickHouse or equivalent OLAP platforms, tackling complex challenges across sharding, replication, materialised views, query performance and cost efficiency. Platform reliability: Build automation, observability and intelligent capacity ...

will also support database performance tuning, backup and recovery strategies, replication, patching and capacity planning, whilst contributing to broader platform engineering initiatives. Experience of ClickHouse and Microsoft SQL Server environments would be highly advantageous. As the ideal candidate, you will be able to demonstrate 4+ years' experience in Database … experience with Python. Experience supporting cloud-native platforms, containerised environments and modern platform engineering practices would also be beneficial. Exposure to technologies including PgBouncer, ClickHouse and Microsoft SQL Server would be highly desirable. In return, we offer excellent career development and progression opportunities, a competitive basic salary and generous ...

team. You will work on a range of microservices written mainly in Rust. Technologies we use include Docker, Go, PostgreSQL, Redis, Memcached, gRPC, Kafka, Clickhouse and the usual Unix/Linux tools and workflows. We strive to build reliable, fault-tolerant systems that can operate at Cloudflare's scale. … level language Experience building and operating distributed systems Experience with monitoring, alerting and debugging high volume production systems Experience with databases (we use PostgreSQL, Clickhouse and Memcached) Strong interpersonal and communication skills, demonstrating empathy, teamwork and a sense of ownership Bonus Points Experience with modern Unix/Linux development ...

team. You will work on a range of microservices written mainly in Rust. Technologies we use include Docker, Go, PostgreSQL, Redis, Memcached, gRPC, Kafka, Clickhouse and the usual Unix/Linux tools and workflows. We strive to build reliable, fault-tolerant systems that can operate at Cloudflare’s scale. … level language Experience building and operating distributed systems Experience with monitoring, alerting and debugging high volume production systems Experience with databases (we use PostgreSQL, Clickhouse and Memcached) Strong interpersonal and communication skills, demonstrating empathy, teamwork and a sense of ownership Bonus Points: Experience with modern Unix/Linux development ...

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Colehouse Group is seeking a ClickHouse Solutions Architect to build a greenfield, enterprise-scale observability platform for a global banking client. You will drive the architectural decisions from first principles to meet performance, multi-tenancy and retention requirements. The role covers discovery, data-modeling, ingestion, storage tiering and security ...

schemas and write migrations that keep data integrity rock-solid Process millions of Stripe webhooks using AWS Lambda and SQS queues Optimize MySQL and ClickHouse queries for dashboards rendering 100k+ rows Build data transformation pipelines feeding our analytics warehouse Collaborate on API design, database architecture, and system scalability What … complex systems in simple terms Bonus Points Stripe API integration experience—you've handled webhooks, idempotency, retries AWS Lambda, SQS, or serverless architecture experience ClickHouse, Redshift, or analytics database experience Built or maintained ETL/data pipeline systems Some frontend familiarity (TypeScript, React)—you get the full picture Early ...