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Backend Scala Developers in United States

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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
35+
Verified Candidates
16+
Avg. Years Experience
Top Skills
Scala Java AWS Python
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.

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Focused, relevant introductions from a curated network.

Available Developers

KW-3297 Principal Recently added

Senior 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
Rust Java Scala Apache Kafka gRPC TIBCO
Interviewing now $100-100/hr
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ES-7679 Mid-level Recently added

Backend Engineer

United States
4 years
Flexible
Employee / Freelancer

Developed distributed data processing systems leveraging Scala and Java, optimizing performance for real-time financial analytics. Integrated complex SQL queries into backend services to support dynamic reporting features in a high-traffic e-commerce platform. Implemented RESTful APIs using TypeScript to enhance interoperability across microservices.

  • Optimized database interactions for a 1TB daily transaction system.
  • Built event-driven architecture using Kafka for asynchronous processing.
  • Automated deployment pipelines with Bash for continuous integration.
  • Enhanced frontend-backend communication with WebSocket protocols.
Scala Java SQL TypeScript JavaScript Bash
Interviewing now Salary on request
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#HIRED Senior Recently hired

Staff Backend Developer

United States
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 Akka HTTP Kafka PostgreSQL AWS Docker Redis gRPC
Hired Salary: $XXX,XXX
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EF-5005 Lead

Senior Rust Engineer

United States
18 years
Remote
Employee / Freelancer

Designed and implemented a high-performance, low-latency trading platform using Rust, optimizing for concurrency and memory safety. Developed a distributed caching system in Go that significantly reduced data retrieval times for large-scale applications. Architected a real-time analytics engine utilizing Python and SQL to process and visualize terabytes of data daily.

  • Built a custom consensus protocol for distributed systems
  • Led migration of monolithic architecture to microservices in Typescript
  • Optimized C# backend systems for a 40% increase in throughput
  • Implemented CI/CD pipelines for automated deployments using Docker and Kubernetes
Python Go Typescript C# SQL Rust
Interviewing now $120k-140k/yr
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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
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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
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QV-6934 Principal

Principal Agentic AI & Lead Data Systems Architect

United States
16 years
Remote
Employee / Freelancer

Architected a multi-agent AI system that integrates generative AI with real-time data processing, optimizing decision-making workflows in complex environments. Spearheaded the development of a scalable graph-based reasoning engine utilizing GraphRAG and LangGraph, enhancing the efficiency of large-scale data analysis. Innovated a modular orchestration framework that leverages LangChain for seamless agent communication and coordination across distributed systems.

  • Designed VertexAI-powered pipelines for real-time data ingestion.
  • Implemented dynamic agent collaboration using custom orchestration protocols.
  • Optimized graph traversal algorithms for high-performance data querying.
  • Developed cross-platform AI models with robust fault tolerance.
Generative AI GraphRAG Multi-Agent Orchestration LangChain LangGraph VertexAI
Interviewing now $205k-220k/yr
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WH-5508 Lead

Senior Software Engineer

United States
10 years
Remote
Employee / Freelancer

Led the development of a distributed microservices architecture using Go and Rust, optimizing for high throughput and low latency in financial transaction systems. Spearheaded a project to refactor a legacy monolith into a scalable, cloud-native application using TypeScript and JavaScript.

  • Implemented real-time data pipelines in Python
  • Designed a fault-tolerant messaging system
  • Optimized Java-based backend for 10x speed improvement
Go Python Rust TypeScript JavaScript Java
Available in 2 weeks $120k-150k/yr
Enquire
SV-4845 Principal

Founder & Principal Engineer

United States
30 years
Hybrid
Employee

Engineered high-performance trading systems with sub-millisecond latency requirements. Developed distributed storage solutions for data-intensive applications, leveraging Rust and C++ for optimal performance. Pioneered advancements in real-time analytics platforms within the financial sector.

  • Architected cross-platform development tools in Scala and Java.
  • Built scalable microservices architecture for fintech applications.
  • Led development of a custom language runtime in Ruby and Python.
Rust C++ Scala Java Ruby Python
Interviewing now $150k-250k/yr
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YP-5994 Lead

Lead Infrastructure Engineer

United States
16 years
Remote
Employee / Freelancer

Developed scalable distributed systems for high-traffic web applications, focusing on concurrency and API design. Architected infrastructure for large-scale deployment, optimizing JVM performance for real-time services.

  • Designed microservices architecture for cloud-native applications
  • Implemented fault-tolerant systems with Haskell
  • Optimized data throughput in multi-threaded environments
Scala JVM Haskell Concurrency Web services API design
Interviewing now $125k-200k/yr
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TW-7442 Lead

Founder

United States
15 years
Flexible
Employee

Architected and implemented a zero-knowledge virtual machine (zkVM) for secure computation, focusing on cryptographic proof generation and verification. Developed AI-driven analytics platforms leveraging Rust for high-performance data processing and real-time insights. Designed and scaled distributed systems using Go to handle millions of transactions per second.

  • Integrated Clojure with existing Java systems for seamless interoperation
  • Optimized Rust codebases for memory safety and concurrency
  • Pioneered blockchain solutions with zkVM for privacy-preserving applications
  • Built AI models for predictive analytics in financial services
Product Development zkVM Artificial Intelligence Rust Go Clojure
Interviewing now $300k-360k/yr
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AB-6248 Principal

Senior Software Engineer

United States
22 years
Remote
Employee

Developed high-performance distributed systems focusing on real-time data processing and analytics, leveraging Apache DataFusion for optimized query execution. Architected scalable microservices for financial transaction processing, handling millions of operations per second with low latency. Contributed to the design of a cross-platform compiler infrastructure, enhancing multi-language interoperability and performance.

  • Implemented consensus protocols for distributed databases.
  • Optimized machine learning pipelines using Python and Rust.
  • Led the migration of monolithic applications to cloud-native architectures.
  • Enhanced JVM performance for large-scale enterprise applications.
Rust Scala Python Java C Apache DataFusion
Available in 2 weeks Salary on request
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EE-6982 Lead

Solution Architect

United States
15 years
Remote
Employee / Freelancer

Architected enterprise-level solutions utilizing REST and SOAP services for seamless integration across legacy and modern systems. Designed and implemented cloud-native applications with an emphasis on scalability and maintainability. Pioneered the adoption of microservices in large-scale e-commerce platforms, enhancing modularity and system resilience.

  • Migrated monolithic applications to microservices architecture
  • Integrated cross-platform APIs for heterogeneous environments
  • Developed custom middleware solutions for data synchronization
Java Scala JavaScript Python REST SOAP
Interviewing now Salary on request
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WZ-9489 Lead

Software Engineer - Ads Platform

United States
19 years
Remote
Employee / Freelancer

Engineered high-availability ad serving systems with Scala, managing billions of ad impressions monthly. Spearheaded the integration of machine learning algorithms into ad targeting pipelines.

  • Automated deployment processes using Bash scripting
  • Developed Node.js utilities for real-time data processing
  • Optimized Ruby-based legacy systems for performance
  • Implemented real-time analytics dashboards with JavaScript
Scala Java JavaScript Node.js Ruby Bash
Available in 2 weeks $150k-200k/yr
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EG-4465 Lead

Lead Build and Release Engineer

United States
9 years
Flexible
Employee / Freelancer

Designed and implemented a scalable continuous integration pipeline for a microservices architecture, significantly reducing build times. Developed a domain-driven design framework for event-sourced systems, enhancing modularity and maintainability in large-scale enterprise applications. Spearheaded the adoption of CQRS patterns in a high-transaction financial platform, improving system throughput and consistency.

  • Optimized build processes with advanced caching strategies.
  • Integrated CI/CD tools with cross-platform deployment capabilities.
  • Automated release management for complex distributed systems.
  • Implemented real-time monitoring for build and release pipelines.
Agile software development OOP FP Domain Driven Design Event Sourcing CQRS
Available in 1 month $160k-180k/yr
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