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Backend Scala Developers in London

Trusted by leading Scala companies
Coralogix
ZF
Riskified
Hypervolt
Paidy
Tiko
Writer
Commercetools
Ledger
CNH
SiriusXM
Leonteq
Arteris
ITV
Linklaters
ClearScore
Guardian
VakantieDiscounter
IOHK
Coralogix
ZF
Riskified
Hypervolt
Paidy
Tiko
Writer
Commercetools
Ledger
CNH
SiriusXM
Leonteq
Arteris
ITV
Linklaters
ClearScore
Guardian
VakantieDiscounter
IOHK
7+
Verified Candidates
13+
Avg. Years Experience
Top Skills
Scala Java Docker AWS
Deep Scala Network

Built through years working with teams and engineers in the Scala ecosystem.

Deep Technical Focus

We specialize in functional backend systems, data platforms, and distributed infrastructure.

Signal Over Volume

Focused, relevant introductions from a curated network.

Available Developers

JT-3345 Lead Recently added

Staff Engineer

United Kingdom
12+ years
Hybrid
Employee

Architected large-scale distributed systems for financial analytics, leveraging Scala and Java for high-performance computation. Designed machine learning pipelines in Python and R to optimize risk assessment models. Led the migration of legacy systems to cloud-native infrastructure, improving scalability and resilience.

  • Implemented Go-based microservices for cloud-native deployments
  • Developed data visualization tools with JavaScript
  • Enhanced fault tolerance in distributed systems
Scala Java Python R JavaScript Go
Interviewing now £160k-190k/yr
Enquire
PW-5286 Senior Recently added

Senior Software Engineer

United Kingdom
5-8 years
Flexible
Employee

Developed high-performance distributed systems for real-time financial data processing. Spearheaded the design of a low-latency trading platform utilizing Scala and Rust. Implemented scalable microservices architecture supporting millions of transactions per day.

  • Optimized SQL queries for sub-second data retrieval
  • Integrated Kotlin-based APIs with legacy Java systems
  • Led Rust adoption for concurrent data processing
  • Built Python tools for automated data validation
Kotlin Java Rust Scala SQL Python
Available in 1 month Salary on request
Enquire
#HIRED Senior Recently hired

Staff Backend Developer

London
6 years
On-site
Employee
Experienced software engineer with strong background in distributed systems and cloud-native architecture. Proven track record delivering production systems at scale. Skilled in designing fault-tolerant services, optimising CI/CD pipelines, and mentoring junior developers across cross-functional teams.
  • Led migration of monolithic system to microservices architecture
  • Built high-throughput data pipeline processing 1M+ events per second
  • Designed and implemented real-time monitoring and alerting platform
Scala ZIO gRPC Redis Kubernetes Terraform PostgreSQL Docker
Hired Salary: $XXX,XXX
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JR-8143 Senior

Lead Software Engineer

United Kingdom
5-8 years
Flexible
Employee

Designed and implemented distributed systems for real-time data processing pipelines. Led the development of a microservices architecture for high-frequency trading applications. Optimized JVM performance for low-latency financial transaction systems.

  • Built a custom consensus protocol for distributed databases
  • Migrated monolithic applications to cloud-native infrastructure
  • Implemented a scalable event-sourcing framework
Software Development Scala Java Go C++ Haskell
Available in 3+ months £135k-160k/yr
Enquire
SX-8417 Senior

Senior Software Engineer

United Kingdom
8-12 years

Designed high-throughput messaging systems with Kafka for real-time data streaming. Developed RESTful APIs with Scala, enabling seamless integration across distributed services. Engineered scalable data storage solutions using Cassandra for large-scale applications.

  • Built interactive UIs using JavaScript frameworks
  • Optimized JVM performance in large-scale Java applications
  • Automated deployment pipelines with CI/CD tools
Scala JavaScript Python Java Cassandra Kafka
Salary on request
Enquire
AF-5918 Principal

Architect / Lead Data Engineer

United Kingdom
12+ years
Freelancer

Designed and optimized large-scale data lakes and real-time streaming architectures using Apache Spark and Flink. Led migration of on-premise data warehouses to AWS cloud infrastructure, improving scalability and reducing latency. Specialized in developing ETL pipelines for financial analytics and risk management systems.

  • Developed proprietary data ingestion framework for high-throughput processing
  • Integrated machine learning models into data pipelines for predictive analytics
  • Architected multi-region data replication solutions for disaster recovery
Scala Java Python Spark Flink AWS
Available in 2 weeks Salary on request
Enquire
WA-5634 Lead

Senior Engineer

United Kingdom
12+ years
Flexible
Employee / Freelancer

Specialized in concurrent and asynchronous programming using Rust and tokio. Developed scalable backend systems with Spring Boot and Scala. Implemented high-performance computing solutions for large-scale applications.

  • Specialized in Rust and tokio
  • Developed with Spring Boot and Scala
  • Implemented high-performance computing solutions
Rust tokio Java Spring Boot Scala cats
Available in 1 month £115k-130k/yr
Enquire

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