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Global Banking & Markets - Backend Developer, Systematic Market Making - London
Backend developer on Goldman Sachs' Systematic Market Making team in London, designing, building and monitoring high-performance trading strategies and tailoring algos to client needs. Core stack is Java or C++ with a low-latency, quantitative trading focus.
Remote Backend Java Engineer - APIs, GraphQL & Azure
Backend engineer at Arco designing, building and maintaining scalable Java/Spring Boot services, developing GraphQL APIs, and working with Cosmos DB on Azure in an Agile team. Full remote or hybrid working is offered, with Hull as the head office option.
Backend java developer in market risk
Backend Java developer building and enhancing market-risk applications at Methods, an IT services consultancy serving UK public-sector and financial clients. Day-to-day: Java/Spring and Python services, optimized SQL on large relational databases, JUnit testing, Shell/Perl scripting, and DevOps practices in an Agile squad.
Sr. Staff Backend Engineer
Internal-transfer posting for a Staff-level backend engineer on Coupang's Marketplace Growth team in Seattle, building large-scale streaming data processing systems, data pipelines, and infrastructure that power the third-party seller experience. Core stack: Java, Spring, AWS, and big data tech like Kafka, Spark, Flink, and ClickHouse.
Sr. Staff Backend Engineer
Senior backend engineer on Coupang's Marketplace Growth team in Seattle, building large-scale streaming data pipelines and infrastructure that power third-party seller tools. Core stack is Java/Spring on AWS with big data tech like Spark, Flink, Kafka, and ClickHouse.
Software Engineer, Arcade (Backend)
Backend engineer for Triumph Arcade, a mobile platform where players compete in skill-based games for cash and prizes. You'll build tournaments and matchmaking, run real-time multiplayer game servers, personalize rewards, fight fraud, and scale the backend for millions of weekly games (Go is a plus), onsite at the San Francisco HQ.
Senior Automation Engineer (Backend Testing & Data Migration Testing) (Chicago)
Coforge is hiring a Senior Automation Engineer (onsite in Chicago) to design and run data migration test strategies, building automated validation and reconciliation frameworks that compare source and target data. Core stack: Python/Java, SQL automation, and Oracle, SQL Server, MySQL, and Snowflake; requires 10+ years of experience.
Senior Software Engineer - Backend (Chicago)
Senior backend engineer at Jobba Trade Technologies building a cloud-native SaaS for commercial roofing job management. Day to day: modernize a legacy .NET Framework system to .NET 10, design DDD-based distributed services, REST APIs, and CI/CD with IaC. Mostly onsite (4 days/week) at the Rosemont, Chicago office.
Java Backend Engineer (Kafka, Kubernetes, AWS, Testing) (Chicago)
Java backend engineer at a highly regulated financial firm in Chicago (hybrid, 3 days onsite): writes Spring Boot microservices, works with Kafka, AWS and Kubernetes, owns Jenkins CI/CD and containerized deployments, drives security tooling adoption (SonarQube, Snyk, Veracode), and leads the automation testing framework and code reviews.
Lead Backend Developer (Chicago)
A hands-on lead role building enterprise-grade applications in Chicago (100% onsite): designing Java/Spring Boot microservices and REST APIs, contributing React front-end work, reviewing code, troubleshooting production issues, mentoring developers, and supporting CI/CD in an Agile team.
Senior Backend Developer (Fort Lee)
Senior backend developer designing, building, and scaling high-performance Node.js and Nest.js APIs and microservices for a fast-scaling digital product ecosystem, working with MongoDB, MySQL, Redis, REST/GraphQL/WebSocket, and message brokers. Full-time, office-based in Fort Lee, NJ — no remote or hybrid.
Jr. Java backend developer (Raleigh)
Junior Java backend developer (W2 contract) in Raleigh, NC building REST APIs and microservices with Spring Boot and Java 11/17+, backed by SQL databases, JUnit/Mockito tests, Git/CI-CD, and hands-on use of AI coding assistants; fintech/securities domain experience is a plus.
Senior Backend Engineer (New York City Metropolitan Area)
Senior backend engineer at a Series B scale-up in Lower Manhattan (hybrid, 3 days/week) designing and scaling high-volume third-party integrations, event-driven services, and data synchronization pipelines. Core stack is TypeScript, Node.js, and SQL databases; salary up to $230k plus equity.
Senior Backend Engineer (New York City Metropolitan Area)
Senior backend engineer (Senior II) at a well-funded Series B scale-up in Lower Manhattan, hybrid 3 days/week. Designs distributed systems, large-scale data pipelines, async/event-driven services and high-throughput APIs using 2+ of TypeScript, Python, Go with SQL/NoSQL. Up to $260k base + equity.
Backend Engineer (New York)
Second backend engineer at Silo Markets, a brokerage startup that rewards long-term investing with airline miles and travel rewards. You'll build core backend infrastructure — trading systems, APIs, brokerage integrations, databases, and risk management tools — working directly with the founders with major ownership of architecture.
Data Annotator - Backend Software Engineer
Part-time, remote-from-India role for backend/software engineers to do data annotation and code evaluation: reviewing codebases, commits, pull requests, and AI-generated code to build datasets that train AI models. Requires 1+ year of software engineering experience; pays USD 30-80 per hour.
Senior Back End Engineer
Contract type: Permanent Location: Alderley Park Working style: Hybrid 50% home/office based We have an exciting opportunity for a Senior Software Engineer specialising in Back End development to join Royal London’s…
Senior Backend Engineer: Data Pipelines & Cloud
Consulting backend role placed by IT staffing firm Veritaz AB in Horsens, Denmark: the engineer designs and enhances backend services, APIs, and data pipelines for a cloud-based platform handling large data volumes, with emphasis on scalability, reliability, traceability, and secure data storage.
Backend Software Engineer (Java / Spring)
Backend engineer builds and scales Java/Python microservices for an AI-powered commercial real estate platform, integrating LLMs and agent workflows on AWS.
Senior Java Backend Developer
Senior backend developer building and owning scalable Java 17+/Spring Boot services, REST/GraphQL APIs, and event-driven systems (Kafka, MQTT, RabbitMQ) on-site in Istanbul/Gebze. The role emphasizes database/SQL work, JVM performance, clean architecture, and hands-on use of AI-assisted development tools.