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Senior backend engineer building and shipping public-facing APIs in Go for security products at a Los Angeles-based company. Day to day: end-to-end API design, testing, and observability, plus on-call and reliability work, in a hybrid role aligned to Pacific/Mountain time.
Lead Backend Engineer at Capital One architecting, building, and scaling data pipelines and microservices using Java, Scala, Apache Spark, and Spring Boot on AWS. Day to day involves owning critical data infrastructure, integrating AI/ML models, mentoring a team, and optimizing cloud performance.
On-site senior backend engineer role building Java/Spring Boot microservices and REST APIs, integrating GenAI/LLM capabilities (Vertex AI, TensorFlow) and Kafka-based event-driven systems. Positions are on-site in Phoenix, AZ or Charlotte, NC; US citizens only.
Backend engineer on Anduril's Systems Integrity Group in Costa Mesa, CA, building backend services and APIs that power simulation, digital twins, and V&V automation by integrating CAD geometry, as-built data, and quality measurements with enterprise systems.
Triwill Group is hiring a middle-to-senior Python developer based in Canada to build and scale backend systems for an iGaming platform. Day-to-day work spans the Python stack, integrations with payment methods and data providers, automated communications, risk management, and production reliability.
Fully remote senior backend engineer role on GitLab's Database Excellence group, building Go-based automation tools for PostgreSQL lifecycle management — provisioning, performance, and operations for high-throughput production databases.
Backend engineer on Coinbase's Money Movement team building backend systems and APIs for stablecoin-based money movement, owning features from design through deployment in a remote-first environment with quarterly in-person surge sessions. Core technologies: Go or Java, distributed systems, fintech and blockchain.
Senior Backend Engineer at Syndio designs, builds, and scales distributed microservices for its pay governance platform, owning the full backend service lifecycle. Core stack: Go and Python, Kafka event streaming, REST/GraphQL/gRPC APIs, Postgres, and GCP/AWS cloud infrastructure.
Senior Backend Developer on RBC's Retail Credit Cloud Integration team in Toronto, designing, coding, and documenting Java SpringBoot microservices with REST/JDBC integrations, unit testing via JUnit/Mockito, CI/CD practices, and AI-assisted SDLC work alongside architects and business analysts.
Backend developer on Talanto's Tokenization team in Toronto, owning backend services for tokenized equities end-to-end from issuance to settlement, integrating traditional financial systems with on-chain services. Core stack is Go, Python, or Java, with blockchain fundamentals and correctness-critical engineering.
Lead backend Java development for Citi's banking applications at the Mississauga (hybrid) office: designing, building, testing and supporting enterprise systems while mentoring other developers. Core stack is Java 17/21, Spring Boot/Security/Data JPA, Oracle DB, Docker/OpenShift, and CI/CD pipelines.
Citi is hiring a Backend Java Lead Developer in Mississauga (hybrid) to lead systems analysis and full software development lifecycle work using Core Java, Spring Boot, and Oracle, while mentoring junior developers and advising on security measures.
Emma – The Sleep Company is hiring a Senior Backend Engineer for its ERP team to design, build, and scale Go and TypeScript backend services supporting global fulfillment and logistics. Day-to-day work centers on REST APIs and event-driven distributed systems on AWS (SNS/SQS, Docker, Kubernetes), with end-to-end ownership including testing, deployment, and monitoring.
Develops Java backend services for tools that help corporate-client advisors at German cooperative banks organize and advise their client portfolios, built on Atruvia AG's cloud-based omnichannel platform within a cross-functional, self-directed team.
Backend developer role at alemo kommunikations GmbH focusing on diverse projects using a modern tech stack including Docker, Git, and CI/CD pipelines.
Senior backend engineer at Kendago builds data-intensive Python services for its performance-marketing/consumer-brand platform: designing APIs and async/batch data workflows with FastAPI, strong SQL, and AWS, integrating third-party data sources and owning features end to end through production monitoring. Fully remote.
A contractor (~15 hrs/week, remote) designs reinforcement learning environments that test AI models on real software engineering tasks — bug fixing, feature implementation, refactoring, and performance optimization — using Model Context Protocol (MCP) tools, with deterministic verification and reference solutions. Requires strong skills in Python 3, Java, Rust, C++, or TypeScript; no prior AI expe
Senior backend developer building and evolving the backend of a corporate content-management and digital-services platform at Gauge, a Stefanini Group digital-marketing company: APIs, microservices, integrations and the data layer using Java 17+, Spring Boot/Cloud, Kafka/RabbitMQ, PostgreSQL, Docker/Kubernetes, CI/CD and observability tooling. Remote in Brazil.
Backend Software Engineer building Buildsimple, ISR's AI-based intelligent document processing SaaS developed in Münster since 2017. Day to day, you drive the further development of the platform using Java and Spring Boot, serving large enterprise customers with a startup-minded team.
Mid-level .NET/C# backend developer building REST APIs, microservices and event-driven systems using Kafka/RabbitMQ, Redis, Kubernetes, CI/CD and AWS, plus applied AI work with LLMs, RAG and LangChain/Semantic Kernel. Full-time CLT, remote, Monday–Friday 9:00–18:00.
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