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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
165+
Verified Candidates
14+
Avg. Years Experience
Top Skills
Scala AWS Kubernetes Kafka
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

JF-4303 Senior Recently added

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
Enquire
AL-9947 Principal Recently added

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
#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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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
Enquire
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
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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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AF-5918 Principal

Architect / Lead Data Engineer

United Kingdom
23 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
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
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
Enquire
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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SR-8711 Principal

Senior Software Engineer / Solution Architect / Trainer

Canada
20 years
Remote
Employee / Freelancer

Architected and implemented large-scale distributed systems for real-time data processing in the telecommunications domain. Developed scalable, fault-tolerant microservices using Scala and Java, optimizing for high throughput and low latency. Played a key role in migrating legacy systems to cloud-native architectures using functional programming paradigms.

  • Designed a custom DSL for domain-specific data transformations
  • Led the development of a real-time analytics platform handling millions of events
  • Implemented a multi-tenant solution for scalable SaaS applications
  • Conducted workshops on functional programming for enterprise teams
Scala Java Typescript Functional Programming Object Oriented Programming Distributed Architectures
Available in 2 weeks $180-225/hr
Enquire
SD-9762 Principal

Principal Engineer

Australia
11 years
Flexible
Employee / Freelancer

Developed a high-throughput, fault-tolerant financial transaction processing system using Scala and Rust, handling millions of transactions per day. Architected a distributed data pipeline for real-time analytics in cloud environments, leveraging AWS services for scalability and reliability. Contributed to the design of a consensus protocol for a blockchain-based ledger, focusing on ensuring data integrity and security.

  • Implemented a custom serialization protocol for low-latency data exchange
  • Optimized SQL queries for a multi-terabyte data warehouse
  • Integrated TypeScript front-end with Scala back-end for seamless UI/UX
  • Designed a Python-based monitoring tool for cloud infrastructure
Rust Scala TypeScript Python SQL AWS
Available in 2 weeks Salary on request
Enquire
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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NV-9828 Senior

Senior Software Engineer

France
9 years
Remote
Freelancer

Designed and implemented a real-time data ingestion pipeline using Apache Pulsar for a healthcare analytics platform. Leveraged ZIO in Scala for building highly concurrent, fault-tolerant backend services. Developed a serverless architecture on S3 for scalable storage solutions.

  • Built a reactive web application using Elm and JavaScript
  • Integrated third-party APIs for enhanced data processing capabilities
  • Optimized data serialization formats to reduce network latency
Scala ZIO Apache Pulsar S3 Elm JavaScript
Available in 1 month €135-150/hr
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