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Backend 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
249+
Verified Candidates
10+
Avg. Years Experience
Top Skills
Scala Kubernetes Kafka PostgreSQL
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

SA-6380 Senior Recently added

Backend Software Engineer

Netherlands
10 years
Flexible
Employee

Developed scalable messaging systems using Kafka and ActiveMQ, optimizing data flow for real-time analytics. Architected microservices with ZIO to enhance fault tolerance and concurrency control in distributed environments.

  • Designed high-throughput data pipelines with Protobuf serialization.
  • Optimized PostgreSQL queries for complex reporting applications.
  • Implemented event-driven architectures for financial transaction processing.
Scala ZIO PostgreSQL ActiveMQ Kafka Protobuf
Available in 2 weeks Salary on request
Enquire
SQ-6135 Principal Recently added

Principal Software Engineer

Switzerland
19 years
Hybrid
Employee / Freelancer

Architected a distributed microservices platform for real-time financial data processing, optimizing latency and throughput across cloud environments. Spearheaded the development of a fault-tolerant messaging system, ensuring data consistency and availability in a multi-region setup. Led the integration of functional programming paradigms to enhance code maintainability and scalability in large-scale enterprise applications.

  • Designed scalable cloud infrastructure for high-volume transaction systems
  • Implemented consensus protocols for distributed ledger technologies
  • Optimized JVM performance for low-latency trading applications
  • Pioneered use of Scala in data stream processing pipelines
Functional Programming Distributed Systems Microservices Cloud Platforms Scala
Available in 2 months €200k-220k/yr
Enquire
#HIRED Lead Recently hired

Senior Scala Backend Engineer

Switzerland
7 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 ZIO gRPC Redis Kubernetes Terraform PostgreSQL Docker
Hired Salary: $XXX,XXX
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GD-3884 Principal

Senior Software Engineer

Canada
12 years
Remote
Employee / Freelancer

Designed and implemented distributed systems for high-frequency trading platforms, focusing on low-latency data processing. Spearheaded the integration of domain-driven design principles into microservices architecture, enhancing scalability and maintainability. Developed a real-time analytics engine processing millions of events per second using functional programming techniques.

  • Optimized JVM performance for large-scale financial applications
  • Led migration from monolithic to microservices architecture
  • Implemented event sourcing for complex transaction processing
Scala Java Functional Programming OOP DDD TDD
Available in 2 weeks Salary on request
Enquire
SS-9357 Mid-level

Développeuse Backend Scala

France
4 years
Flexible
Employee

Specializes in building scalable backend services with Scala and Kafka. Developed fault-tolerant systems using Play Framework and http4s.

  • Integrated Cats Effect for functional programming paradigms
  • Optimized message processing with Kafka Streams
  • Designed microservices architecture for high availability
Scala Play Framework Spring Boot Kafka Cats http4s
Interviewing now $60k-60k/yr
Enquire
SV-8028 Mid-level

Scala Backend Engineer

Poland
4 years
Remote
Employee / Freelancer

Developed scalable backend systems utilizing Scala for real-time data processing in fintech applications. Optimized SQL queries for high-throughput transaction processing, achieving significant performance improvements.

  • Implemented microservices architecture using Kotlin and Scala
  • Integrated Cats Effect for asynchronous data processing
  • Built Python scripts for data pipeline automation
Scala SQL Kotlin Python Cats Cats Effect
Available in 1 month Salary on request
Enquire
AH-3623 Senior

Software Engineer

Germany
6 years
Flexible
Employee

Engineered a scalable event-driven architecture for an e-commerce application using Akka and ZIO, enhancing system resilience and fault tolerance. Developed backend services in Scala to support high-volume transaction processing, ensuring data consistency and reliability. Contributed to the design of a domain-specific language for internal tools, improving developer productivity.

  • Integrated NoSQL databases with existing Java applications
  • Built reactive systems using Play Framework and WebSockets
  • Enhanced performance of JVM-based applications with Kotlin
  • Conducted load testing, achieving 99.9% uptime during peak
Scala Java ZIO Akka Akka HTTP Akka Streams
Interviewing now $60k-80k/yr
Enquire
ST-6011 Principal

Senior Backend Engineer

Germany
13 years
Remote
Employee

Engineered backend systems with Go and Scala, focusing on real-time data processing. Developed scalable search solutions with Elasticsearch in distributed environments.

  • Engineered real-time data systems
  • Developed Elasticsearch search solutions
  • Optimized Go-based backend services
Go Node.js Elasticsearch Scala Python Kubernetes
Available in 3+ months Salary on request
Enquire
QS-6406 Principal

Consulting Member of Technical Staff

United States
14 years
Remote
Employee / Freelancer

Architected distributed systems for large-scale event-driven applications in cloud environments, focusing on fault tolerance and resiliency. Led design and implementation of cost-efficient cloud-native solutions with high operational reliability.

  • Designed consensus protocols for distributed data consistency
  • Optimized cloud infrastructure for reduced latency and costs
  • Enhanced system observability and monitoring in production
Distributed Systems Architecture Event-Driven Systems Cloud-Native Design Fault Tolerance & Resiliency Cost Optimization Production Operations & Reliability
Interviewing now Salary on request
Enquire
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
Enquire
JJ-2880 Senior

Senior Backend Engineer

Portugal
7 years
Remote
Employee / Freelancer

Developed backend systems with Rust and Go for high-performance computing. Expert in implementing cross-platform solutions with C++ and Python.

  • Built high-performance systems with Rust
  • Developed cross-platform solutions
  • Optimized C++ and Python applications
Rust Scala Go Java Python C++
Available in 2 weeks Salary on request
Enquire
LR-7612 Lead

Sr. Software Engineer

United States
10 years
Remote
Employee / Freelancer

Designed full-stack applications with Go, Python, and Rust. Expert in building scalable backend systems and integrating TypeScript for frontend solutions.

  • Built full-stack applications
  • Integrated TypeScript in projects
  • Optimized Rust backend systems
Go Python Rust Scala JavaScript TypeScript
Interviewing now $130k-150k/yr
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
Enquire
SB-3635 Lead

Sr. Backend Software Engineer

India
9 years
Flexible
Employee / Freelancer

Developed high-throughput distributed systems in Rust and Scala, focusing on real-time data processing. Built scalable microservices architecture leveraging Actix Web and Tokio for concurrent processing. Extensive experience in performance optimization for low-latency applications.

  • Designed scalable microservices with Actix Web
  • Optimized low-latency systems using Rust
  • Implemented real-time data processing pipelines
Scala Rust Python OOP Functional Programming Microservices
Available in 2 months Salary on request
Enquire
JS-8893 Principal

Senior Backend Engineer

Finland
15 years
Flexible
Employee / Freelancer

Architected a high-throughput messaging platform using Kafka and PostgreSQL for financial transactions. Led the backend development of a scalable microservices architecture in Elixir and Scala.

  • Implemented distributed database systems for high availability
  • Optimized real-time data processing pipelines
  • Designed RESTful APIs for fintech applications
Scala Java Elixir Python Kafka PostgreSQL
Available in 2 weeks €70k-80k/yr
Enquire

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