8,641 Senior Backend jobs
Senior backend engineering roles owning server-side systems and APIs.
Senior Backend Software Developer
IBM Software is hiring a Senior Backend Software Developer in Bedford, Canada, to design, code, and test component-level, AI-powered cloud-native software, contribute to automated CI/CD pipeline quality stages, and fix customer-reported issues within Agile teams.
Senior Backend Engineer Integrations
Senior backend engineer building reusable integration foundations for MaintainX — connector scaffolding, marketplaces, SDKs, and API platforms for enterprise systems like SAP. Day to day involves backend services in TypeScript, Go, or C#, relational database design, and improving CI/CD pipelines, working with Product, Design, and customer-facing teams.
Senior Backend Engineer - Java Spring Boot + Camunda 8
Senior backend developer building cloud-native, workflow-orchestrated services for mortgage and lending workflows in regulated financial services. Day to day: Java Spring Boot microservices, Camunda 8 BPMN workflow orchestration, API-first integrations, and Azure/Kubernetes deployment with DevSecOps practices in agile teams.
Senior Java Backend Engineer Toronto
Senior backend engineer building enterprise banking software with Java, Spring Boot, microservices, PostgreSQL, Docker, and cloud technologies, mostly hands-on backend work with some frontend contribution, on a hybrid team in Downtown Toronto.
Senior Backend Engineer AWS Python
Design and maintain scalable backend services and RESTful APIs in Python on AWS for an AI-driven risk intelligence platform used for compliance and due-diligence media screening and monitoring. You'll optimize data pipelines, database architecture, and cloud infrastructure, with hybrid Montréal or remote options.
Senior Backend Engineer Logistics Platform
Senior backend engineer on Instacart's Logistics Platform, building scalable services for routing, task allocation, fulfillment tracking, and shopper compensation. Works with Ruby, Python, or Go on distributed, event-driven Tier-0 systems; remote within select Canadian provinces.
Senior Backend Engineer
Build and optimize backend systems and APIs in Java or Go to power online food delivery for global restaurant chains like Chick-fil-A and KFC.
Senior Backend Engineer
Build and maintain scalable backend systems in Java or Go that power restaurant delivery platforms, using PostgreSQL, Redis, and cloud services like AWS.
Senior Backend Software Engineer
Builds and maintains backend services for an AI-driven marketing automation platform that optimizes restaurant delivery orders across third-party platforms.
Senior Backend Software Engineer
Builds and maintains backend services for an AI-driven marketing platform that automates restaurant promotions across delivery platforms, using Go, PostgreSQL, and cloud infrastructure.
Senior Backend Developer, AI Systems (Remote)
Senior backend developer at Movable Ink (Toronto) evolving the AI recommendations engine that powers billions of marketing personalization decisions daily into a modern distributed architecture. Deep Python distributed-systems work with Kafka, Kubernetes, and gRPC on Google Cloud, plus Spark/Flink/Beam data processing.
Senior Backend Engineer — Scalable Data Systems (Hybrid)
Backend engineer on HII Mission Technologies' Enlighten team, building and scaling critical data systems that manage trillions of records and serve hundreds of thousands of daily queries for the DoD. Day-to-day work spans RESTful APIs, open-source systems like Trino, and identity federation with Keycloak in a hybrid setting.
Senior Backend Engineer, AI at Scale — Remote
Seedtag's Contextualization Platform team seeks a senior engineer to build high-performance Go backend services powering real-time bidding at scale, turning AI innovations into production systems and scalable data pipelines for contextual advertising. Remote-friendly, with ownership of architectural decisions.
Senior Blockchain Backend Engineer
Senior backend engineer in London building enterprise-grade APIs and microservices in Java for digital asset platforms, driving blockchain-related components with banking-grade security, reliability, and performance.
Senior Backend Engineer for HealthTech Platform (Remote)
Senior backend engineer at Living With (Agentis Health Group) building a secure, scalable healthcare platform focused on patient outcomes. Day-to-day is mostly backend work in Java/Spring, PostgreSQL, and AWS, with occasional frontend contributions and close collaboration with product and clinical stakeholders in a regulated environment.
Senior Backend Engineer - Node.js/TypeScript | Remote
Remote-first senior backend role (with monthly travel to Belfast) where you own backend architecture, infrastructure, reliability, and security, building services in TypeScript on AWS. You'll drive technical decisions and improve CI/CD, observability, and API security; 5+ years of backend/full-stack experience is required.
Senior Backend Java Engineer - Hybrid in London
Critical Mass (an Interpublic agency) in London is hiring a Senior Backend Java Developer to build scalable Spring Boot services for a large automotive brand. Day to day involves leading Java backend work with Docker and RESTful APIs, collaborating with PMs, QA, front-end, DevOps, and architecture; AWS familiarity is a plus.
Senior Backend Engineer – Universal Search Platform
Mark43 in Manchester (Ancoats) is hiring a senior backend engineer to build scalable services powering its universal search platform across RMS, CAD, and analytics products. Day-to-day involves data indexing, event-driven patterns, and owning features end-to-end with a focus on observability, security, and performance.
Python Backend Engineer – Factory Flow (Senior)
Senior Python backend engineer at McLaren designing, building and supporting services and APIs that modernise how parts flow through design, release, manufacturing, supply chain, inventory and race operations in a Formula 1 environment. On-site at the McLaren Technology Centre in Woking, working with engineers, product teams and business stakeholders.