26,991 Backend jobs
Server-side engineering roles — APIs, services, databases and backend systems.
Senior Backend Software Engineer
Design reliable backend systems at IBM Software using cloud platforms, distributed systems, and modern deployment practices. Work in an Agile environment with collaborative teams. As a Senior Software Engineer, you…
Laravel Developer + React - Remote, Latin America
Posting is titled 'Laravel Developer + React', but the description describes a junior BI developer at IQVIA in Buenos Aires: analyzing client requirements, documenting specs, and building SQL Server data models, tabular cubes and ETLs that feed Power BI dashboards for healthcare/life-sciences client projects.
Desarrollador Backend Mid / Senior
Ofertas de Desarrollador Backend Mid Senior en... Sobre Darwoft Darwoft es una software factory dedicada al desarrollo de soluciones de software a medida y a la provisión de servicios de staff augmentation IT para…
Senior Backend Developer
Senior Backend Developer at Smart State, office-based in Fort Lee, NJ, designing and scaling high-performance Node.js/Nest.js APIs and microservices for a global digital product ecosystem, working with MongoDB, MySQL, and Redis, REST/GraphQL/WebSocket protocols, and message brokers like RabbitMQ.
.NET Backend Developer — Enterprise Apps (Copenhagen)
On-site .NET backend developer role at IT consultancy Altia in Copenhagen, building and maintaining enterprise applications for a major European agency. Core stack is C#/.NET 8, SQL Server, REST APIs and Azure/Identity integration, with 3+ years of back-end experience and C1 English required.
Senior Backend Engineer (TypeScript AI) | Hybrid London
Senior backend engineer building a scalable FinTech platform with AI-powered data workflows at Client Server Limited in London (hybrid). Day to day: owning backend architecture for data access, processing and API delivery, with a focus on advanced TypeScript, AI integration and data pipelines with observability.
Senior Backend Engineer: Low-Latency, High-Volume APIs
Senior backend engineer building and maintaining low-latency, high-volume distributed services for global platforms with hundreds of millions of users. Works across personalization, catalog storage, API decoupling and scalable data processing using Java, Scala, or Go in a cloud-first environment.
Senior Cloud Backend Engineer — Azure, Kubernetes, Hybrid Belfast
Senior Cloud Backend Engineer at GEA Farm Technologies in Belfast (hybrid), building and operating the cloud platform behind digital farm-management solutions. Work spans Azure and Kubernetes architecture, security, CI/CD, and production operations, plus mentoring colleagues and collaborating with distributed teams.
Backend Engineer, Crypto Payments Platform (Europe)
Backend engineer at Bleap, an on-chain banking and crypto payments platform: you'll own payment-provider API integrations, build backend services connecting an in-house ledger to the blockchain, and help maintain CI/CD and security infrastructure while setting test-driven engineering standards.
SC Cleared Backend Engineer CQRS/Event-Driven Hybrid London
Mid-level backend engineer joining an Advanced Resource Managers delivery pod in hybrid London, designing, building and maintaining scalable, distributed backend systems using event-driven architecture and CQRS patterns, implementing secure RESTful APIs in an Agile team. An SC security clearance is required.
Mid Backend Engineer
6-month contract (Inside IR35, up to £580/day) for a Mid Backend Engineer, London-based hybrid (2-3 days onsite). Building scalable, event-driven backend systems using CQRS and Event Sourcing, with backend work in .NET/Java/Python, Azure Service Bus messaging and REST APIs. Active UK SC clearance is essential.
Backend engineer for booking and payments
Backend engineer at Fresha in London, owning booking and payments features end to end on its SaaS operating system for the beauty and wellness industry. Day to day: designing, shipping (daily deploys behind feature flags) and operating distributed, event-driven backend services across multiple repos.
AI Application Backend Development Engineer (Token Platform)
Backend engineer building services for an AI/token platform in Singapore: LLM integration and model routing, token metering and billing, RAG pipelines (embeddings, vector search), AI agents with Function Calling, plus accounts and tenant isolation. Core stack: Python/Java/Go/Node.js with MySQL/PostgreSQL/Redis/MongoDB.
AI Backend Engineer: Go & Multimodal AI Integrations
Backend engineer in Singapore building AI-enabled services in Go: implementing provider adapters for multiple AI providers, RESTful APIs and asynchronous job orchestration, with testing, logging, observability and performance tuning. Posted via A Plus Manpower Services.
Senior Software Engineer (Backend - Java/Spring)
Senior backend engineer at a financial services technology firm in Rustenburg, South Africa, designing and maintaining scalable Java/Spring Boot services and APIs for high-volume financial transaction systems, working with relational databases (Oracle, PostgreSQL) and optionally NoSQL stores and message queues.
Senior Backend Software Engineer (Cloud Infrastructure)
Senior backend engineer at a cloud solutions provider in Sandton (hybrid), designing and maintaining scalable microservices and cloud infrastructure on AWS/Azure/GCP, with APIs, CI/CD, Docker/Kubernetes, and SQL/NoSQL databases. Requires 7+ years of backend development experience.
Backend Engineer, Data Acquisition (Rust, Remote)
Backend engineer on The Hotels Network's (Lighthouse) data acquisition team, building high-performance systems mainly in Rust that collect billions of data points from the web. Works on crawling infrastructure — web stacks, proxies and browser tooling — partnering with crawler, DevOps and Security teams on a platform used by 85,000+ users.
Backend Engineer - Data Acquisition
Backend engineer on Lighthouse's Crawler Engineering team builds high-performance data acquisition systems—mostly in Rust—that collect hotel rates and supply data from ~200 million web requests a day, working on in-house proxy layers, browser tooling, and protocol-level debugging on Google Cloud/Kubernetes.