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Scala Developers

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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
301+
Verified Candidates
16+
Avg. Years Experience
Top Skills
Scala AWS Kubernetes Docker
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

EL-6427 Principal Recently added

Senior Scala Engineer

Switzerland
15 years
Remote
Employee / Freelancer

Architected event-driven systems leveraging Event Sourcing and CQRS to ensure data consistency. Pioneered the use of Scala for building scalable, fault-tolerant distributed applications. Designed and implemented microservices to support large-scale fintech platforms.

  • Integrated TypeScript for enhanced front-end type safety
  • Developed domain-driven design models for enterprise applications
  • Implemented Dart-based solutions for cross-platform mobile applications
Scala Java TypeScript Dart Event Sourcing CQRS
Interviewing now £140k-150k/yr
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EE-6829 Lead Recently added

Scala Contractor

United Kingdom
19 years
Flexible
Employee / Freelancer

Led the development of large-scale distributed systems handling billions of transactions daily. Specialized in building high-performance backend systems for financial analytics platforms. Developed containerized microservices architectures using Docker to enhance scalability and reliability.

  • Optimized data processing pipelines for real-time analytics
  • Implemented custom Unix-based tools for system monitoring
  • Developed complex scripting solutions in Perl for data migration
Scala Python Perl Linux Unix Docker
Available in 2 weeks £120k-140k/yr
Enquire
#HIRED Lead Recently hired

Lead Scala Engineer

Spain
6 years
Hybrid
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 Spark Flink Airflow GCP Python Delta Lake Docker
Hired Salary: $XXX,XXX
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NL-1941 Principal

Senior Scala Developer

Netherlands
25 years
Flexible
Freelancer

Specialized in designing distributed systems with a focus on real-time data processing pipelines. Led the development of a high-performance, event-driven architecture leveraging Scala and ZIO for fault tolerance and scalability. Optimized cross-service communication using gRPC for microservices in a large-scale enterprise environment.

  • Implemented custom Tapir-based API gateway solutions
  • Architected SQL-driven data analytics platforms
  • Developed concurrent processing frameworks with Java
  • Enhanced system resilience with advanced ZIO constructs
Scala ZIO Java SQL gRPC Tapir
Interviewing now €143-158/hr
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JF-4303 Senior

Application Developer - Scala

United Kingdom
10 years
Flexible
Employee / Freelancer

Developed distributed systems for financial trading platforms, optimizing real-time data processing with Scala. Spearheaded the integration of functional programming paradigms into legacy systems, enhancing performance and reliability. Designed and implemented RESTful APIs for high-traffic web services, ensuring seamless data exchange.

  • Architected microservices for a large-scale e-commerce application
  • Optimized SQL Server queries to improve database performance by 40%
  • Led a migration project from ASP.NET to Scala-based architecture
  • Implemented machine learning models using Python for predictive analytics
Scala Functional Programming Java Python ASP.NET SQL Server
Interviewing now £50k-90k/yr
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AL-9947 Principal

Senior Scala Developer / Team Leader

Poland
12 years
Remote
Employee / Freelancer

Led the development of a distributed event-driven microservices architecture using Akka and Play. Specialized in high-performance, non-blocking I/O operations and asynchronous data processing. Designed scalable RESTful APIs for large-scale enterprise applications, optimizing database interactions with Slick.

  • Implemented custom streaming solutions using Akka Streams
  • Optimized performance of real-time data pipelines
  • Architected distributed systems for fintech applications
Scala Akka Play Http4s Cats Slick
Available in 1 month Salary on request
Enquire
LG-3784 Mid-level

Scala Software Engineer

Portugal
4 years
Remote
Employee / Freelancer

Specialized in building microservices architectures for e-commerce platforms, focusing on scalability and fault tolerance. Developed RESTful APIs with Akka, ensuring high availability and responsiveness. Engineered seamless data integration processes with PostgreSQL for real-time analytics.

  • Migrated monolithic applications to microservices for improved performance.
  • Enhanced API security using OAuth2 and JWT standards.
  • Automated deployment pipelines with Docker and Kubernetes.
Scala Akka ZIO Microservices Architecture REST APIs PostgreSQL
Interviewing now €52k-60k/yr
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WK-9239 Principal

Senior Kotlin backend developer

Sweden
25 years
Hybrid
Employee / Freelancer

Designed and implemented large-scale microservices architectures using Scala for financial transaction systems, ensuring high availability and fault tolerance. Developed real-time data processing pipelines for a cloud-based analytics platform, optimizing for low latency and high throughput. Contributed to the development of reactive systems, enhancing system responsiveness and scalability in distributed environments.

  • Led migration of legacy Java systems to Kotlin microservices
  • Implemented event-driven architecture for a retail analytics platform
  • Optimized cloud resource allocation, reducing operational costs by 30%
  • Developed secure API gateways for fintech applications
Java Scala Kotlin Microservices Reactive architecture Cloud
Available in 1 month €100k-140k/yr
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EJ-8987 Lead

Sr. Software Engineer

Spain
10 years
Flexible
Employee / Freelancer

Built scalable microservices architectures deployed on Kubernetes, optimizing for high availability and fault tolerance. Developed distributed systems for real-time data processing in the IoT domain, leveraging Go and Scala. Spearheaded efforts in implementing CI/CD pipelines for seamless deployment and integration.

  • Implemented event-driven architecture using Kafka and RabbitMQ
  • Enhanced application performance through advanced caching strategies
  • Designed RESTful APIs with comprehensive testing frameworks
Go Scala Java JavaScript Elm Kubernetes
Available in 1 month Salary on request
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WF-4947 Principal

Senior Scala Developer

Poland
13 years
Remote
Employee / Freelancer

Built scalable microservices with Play Framework and Slick for data-intensive applications. Designed robust messaging solutions using RabbitMQ for asynchronous processing. Engineered efficient database schemas and optimized queries in PostgreSQL.

  • Developed real-time analytics using Kafka and Scala
  • Implemented caching strategies to improve system responsiveness
  • Conducted load testing to ensure system scalability
Scala Java Play Framework Slick PostgreSQL RabbitMQ
Interviewing now €80k-90k/yr
Enquire
EH-3800 Principal

Senior Scala Developer

Netherlands
19 years
Flexible
Employee / Freelancer

Built distributed microservices architecture handling millions of requests per second. Architected real-time data processing pipelines using Akka and Kafka for high-throughput applications. Designed and deployed scalable cloud infrastructure on AWS for global reach applications.

  • Implemented event-driven systems with Akka Streams
  • Optimized JVM performance for large-scale enterprise applications
  • Developed multi-region failover strategies on AWS
Scala Java Python Akka Kafka AWS
Interviewing now €50k-80k/yr
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JF-3412 Senior

Founding Scala Software Engineer

France
7 years
Employee / Freelancer

Co-founded a startup focusing on distributed systems and microservices with Scala. Designed APIs for scalable data-driven applications. Integrated complex SQL queries for data-intensive backend processes.

  • Co-founded startup in distributed systems
  • Designed scalable APIs
  • Integrated complex SQL queries
Python Scala SQL API Design Microservices Distributed Systems
Salary on request
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LJ-6969 Principal

Senior Software Engineer & Solution Architect

Germany
20 years
Remote
Employee / Freelancer

Architected distributed systems for real-time financial data processing, achieving sub-millisecond latency. Designed scalable microservices architecture for cloud-native applications, integrating Rust and Scala for high-performance computing. Spearheaded development of a domain-specific language for automated financial reporting, leveraging F# for functional programming paradigms.

  • Implemented event-driven architecture for IoT data ingestion.
  • Optimized .NET Core applications for cloud environments.
  • Developed consensus algorithms for blockchain-based systems.
C# F# Scala Rust .NET .NET Core
€100k-120k/yr
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SA-7506 Lead

Server Software Engineer

Ireland
14 years
Remote
Employee / Freelancer

Architected and led the development of a distributed microservices platform using Scala and Spring Boot, handling millions of transactions daily. Specialized in designing high-performance server-side applications for financial services, ensuring low-latency data processing. Built a custom RPC framework using Thrift to enhance cross-service communication.

  • Implemented a robust CI/CD pipeline with Jenkins
  • Pioneered a cross-language service integration with Ruby
  • Enhanced system scalability to support 5x user growth
Scala Java Spring Spring Boot Thrift Ruby
Available in 2 weeks Salary on request
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KW-3297 Principal

Backend Engineer

United States
22 years
Remote
Freelancer

Designed and implemented a distributed ledger system for financial transactions, optimizing consensus protocols for latency and throughput. Spearheaded the development of a real-time event processing pipeline, handling billions of messages per day with sub-second latency. Architected a microservices platform for a large-scale e-commerce application, focusing on scalability and fault tolerance.

  • Developed a custom RPC framework in Rust for microservices
  • Optimized JVM performance for high-frequency trading applications
  • Implemented a distributed caching system, reducing data retrieval time by 70%
  • Led migration of monolithic architecture to microservices, improving deployment speed
Java Rust Scala Distributed systems Microservices Event-driven architecture
Interviewing now $165-165/hr
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