

Huxley
Cassandra Database Engineer
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Cassandra Database Engineer on a 6-month contract in London, paying up to £700/day inside IR35. Key skills include Apache Cassandra, data modeling, performance tuning, and cluster management. Investment banking experience is preferred.
🌎 - Country
United States
💱 - Currency
£ GBP
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💰 - Day rate
706
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🗓️ - Date
August 15, 2026
🕒 - Duration
More than 6 months
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🏝️ - Location
Hybrid
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📄 - Contract
Inside IR35
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🔒 - Security
Unknown
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📍 - Location detailed
City Of London, England, United Kingdom
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🧠 - Skills detailed
#Grafana #Disaster Recovery #Data Engineering #Security #Normalization #REST (Representational State Transfer) #Documentation #Prometheus #Replication
Role description
Cassandra Experienced Data Engineer Needed!
I'm currently supporting one of my investment banking clients who are looking to bring on a Data Engineer on an initial 6 month contract with scope of extension with Cassandra experience. The role will require 2-3 days a week in the London office with my client being able to pay up to £700 per day inside IR35.
Responsibilities include:
• Design, implement and maintain Apache Cassandra clusters ,including keyspace design, replication strategies and partitioning models.
• Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions).
• Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning.
• Manager cluster operations: node additions/decommissions, repairs (node tool), backups and disaster recovery.
• Monitor cluster health using tools such as Prometheus/Grafana, OpsCenter, or equivalent.
• Support CQL query development and advice application teams on best-practice access patterns.
• Collaborate with infrastructure and security teams on hardening, encryption (at rest/in transit) and authentication/authorisation (RBAC)
• Produce technical documentation including data models, runbooks, and operational procedures.
If this role is of interest, please apply with an updated version of your CV and you will be contacted if suitbale.
Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.
To find out more about Huxley, please visit www.huxley.com
Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales
Cassandra Experienced Data Engineer Needed!
I'm currently supporting one of my investment banking clients who are looking to bring on a Data Engineer on an initial 6 month contract with scope of extension with Cassandra experience. The role will require 2-3 days a week in the London office with my client being able to pay up to £700 per day inside IR35.
Responsibilities include:
• Design, implement and maintain Apache Cassandra clusters ,including keyspace design, replication strategies and partitioning models.
• Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions).
• Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning.
• Manager cluster operations: node additions/decommissions, repairs (node tool), backups and disaster recovery.
• Monitor cluster health using tools such as Prometheus/Grafana, OpsCenter, or equivalent.
• Support CQL query development and advice application teams on best-practice access patterns.
• Collaborate with infrastructure and security teams on hardening, encryption (at rest/in transit) and authentication/authorisation (RBAC)
• Produce technical documentation including data models, runbooks, and operational procedures.
If this role is of interest, please apply with an updated version of your CV and you will be contacted if suitbale.
Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.
To find out more about Huxley, please visit www.huxley.com
Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC387148 England and Wales





