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Senior Lead Backend Engineer at Capital One in Chicago leading a portfolio of distributed microservices and cloud-native systems. Day to day involves hands-on coding in Java, Python, Go and more, plus mentoring engineers while building on Docker, Kubernetes, and AWS.
Senior blockchain backend engineer on the VIMWorld ecosystem (hiring entity CREAM, LLC) in Las Vegas, designing NFT features and cross-chain architecture. Day to day is hands-on Solidity smart-contract development with a security focus, work across Ethereum, VeChain, and BSC, and leading integrations plus SDK builds for the platform's APIs.
Senior blockchain/backend engineer building VIMworld's smart NFT ecosystem: leading cross-chain integrations and token bridges, developing Solidity smart contracts, and building integration libraries/SDKs and APIs. Core stack includes VeChain, Ethereum, Binance Smart Chain, Solidity, TypeScript, Web3.js, React/React Native, and Unity.
Sr. Backend/Blockchain Engineer at CREAM, LLC (VIMworld) in Las Vegas building smart NFT product functionality and cross-chain integrations across VeChain, Ethereum, and Binance Smart Chain. Day to day: developing Solidity smart contracts, integration libraries/SDKs for servers and APIs, and leading technical roadmaps.
Mid/senior backend developer at NorthStar Earth & Space, which turns optical telescope data into space domain awareness and space traffic management services. Day to day: designing, building and deploying distributed cloud data-processing pipelines using Go/Java/Python, Kubernetes, and big-data tools like Apache Spark and Iceberg.
Junior backend developer joining Teoresi's Energy-sector team, building cloud-focused backend services with .NET 8/C# in Visual Studio, relational databases (ideally Oracle), and light DevOps. Remote work is possible; degree in computer engineering/science required.
Guidoio, Italy's first online driving school, seeks a Senior Backend Developer (Tech Lead) to guide technical execution and a team of 4-5 developers while staying hands-on with code. The stack is Node.js/TypeScript (Fastify), Firebase/Supabase, and GCP/Cloud Run, with AI tools like Claude Code central to daily work.
Backend Developer for Regold (by idealista), a digital platform and services suite for real estate agencies. Day to day you build and maintain PHP (Laravel/Symfony) APIs and backend services, work with MySQL and NoSQL databases, write automated tests, and help resolve production issues in a collaborative Milan-based team.
Analyst/programmer at Renta 4 Banco's Madrid headquarters IT department, developing backend processes with Oracle PL/SQL and SQL-based applications. Requires 5+ years in a similar role plus OOP experience with .NET, C# or Java.
Backend developer building and scaling critical APIs in a Node.js/TypeScript microservices ecosystem (NestJS, RabbitMQ, PostgreSQL, AWS) for a platform transforming the banking/financial sector. Hybrid role based in Madrid (2-3 days in office), working in cross-functional squads with a mature CI/CD pipeline and Claude integrated into the dev workflow.
Senior Python backend developer joining a platform team to design, build, test and deploy high-performance distributed services and batch processing pipelines end-to-end, including production support and mentoring, in a stable international project. Core stack: Python, relational databases, CI/CD, messaging middleware and cloud, with financial-sector (regulatory) context.
Staff-level backend engineer leading backend teams: designs scalable backend services and data-processing workflows that turn unstructured customer data into reliable structured outputs, and shapes architecture across APIs, databases, cloud infrastructure, and LLM-powered systems while improving reliability and performance.
Senior backend engineer at an insurtech platform, building scalable, maintainable software primarily with Ruby on Rails, with occasional React/TypeScript front-end work. Day to day involves cross-team collaboration and CI/CD, under a flexible work-from-anywhere policy.
Senior backend engineer on Commure's RCM Core team building AI-powered automation for healthcare revenue cycle management — turning manual financial tasks like denials and resubmissions into auditable automated workflows by designing guardrails, scaling a rule engine, and building dashboards.
Senior backend engineer at Commure building and shipping production AI for healthcare revenue cycle management: end-to-end ownership of AI features and integration workflows that turn manual claims work into auditable, AI-assisted operations. Core tech: backend services, AI agents, healthcare claims/RCM systems.
Senior backend engineer at RBC Capital Markets in Minneapolis who designs, develops, and delivers software that integrates vendor systems into back-office platforms. The role emphasizes technical leadership, managing multiple projects, and collaborating across teams; no specific technologies are named.
Jobtailor is hiring a Senior Python Backend Engineer in California to design, build, test, and operate backend systems at scale while mentoring junior engineers and guiding technical decisions. Core stack: Python with Django or Flask, plus CI/CD, observability, distributed architectures, cloud (AWS/GCP/Azure), and Terraform.
Senior Backend Engineer at Athelas/Commure building an AI-native platform that automates healthcare revenue-cycle workflows (claims, denials, remittance posting, document extraction). The role owns end-to-end AI feature delivery — prompt design through production backend infrastructure — plus observability improvements and mentoring engineers.
Design and ship end-to-end backend automation for healthcare revenue cycle management (RCM) — building guardrails, scalable rule engines, and auditable, AI-driven workflows that turn manual financial tasks into automated claims handling, as part of Commure/Athelas' RCM Core team.
Backend developer in Manila designing, building, and maintaining scalable backend systems with .NET Core, SQL, and Azure microservices (AKS). Day to day involves API development, fixing performance bottlenecks, and managing deployments with solid OO design and DevOps practices.
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