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10,957 Senior Backend jobs

Senior backend engineering roles owning server-side systems and APIs.

11K jobs

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10,957 jobs Posted Sort

Quantum Technology Recruiting Inc. (QTR)

Senior Backend Engineer in Financial Tech

NewBe an early applicant HybridNorth AmericaSenior

Senior Backend Engineer building scalable, cloud-native backend systems for investment and risk management at a Downtown Toronto fintech firm. Day to day: designing microservices and APIs, working with AWS, and partnering with trading and risk teams to streamline financial data workflows across asset classes. Hybrid role.

API Api Design AWS Cloud Cloud Native +6 skills

Lakeview Loan Servicing, LLC.

Senior Backend Engineer in AI Development

NewBe an early applicant RemoteNorth AmericaSenior

Senior Backend Engineer on the AI Platform team who designs, deploys, and monitors scalable, reliable backend services supporting AI functionality, using Java or TypeScript, API design, and event-driven architectures on cloud platforms with CI/CD.

AI API Api Design CI/CD Cloud +3 skills

Senior Backend Engineer - Passwordless Solutions

NewBe an early applicant North AmericaSenior

Senior backend engineer on Okta's Passwordless team in Toronto, owning complex Java-based authentication features from design through deployment, mentoring engineers, and using observability tools to guide technical decisions in large-scale distributed cloud environments.

Authentication Cloud Java Observability Okta

Princeton IT Services, Inc

Senior Python Backend Engineer for APIs

NewBe an early applicant On-siteNorth AmericaSenior

A Senior Python Backend Engineer builds and optimizes scalable backend services and RESTful APIs for mission-critical financial platforms, working on-site in Toronto. The role involves distributed system design, reliability and security improvements, code reviews, and cross-functional collaboration using Python, REST/OpenAPI/JSON, SQL/NoSQL databases, cloud platforms, and CI/CD.

API CI/CD Cloud JSON NoSQL +4 skills

Warner Media, LLC.

Senior Backend Engineer at Warner Bros.

NewBe an early applicant North AmericaSenior

Senior Backend Engineer on Warner Bros. Discovery's Dalton team, designing and delivering cloud-native Java/Spring Boot services on AWS that power subscriptions and commerce for streaming platforms. Day to day: owning complex features end to end, building event-driven systems with AWS messaging, designing REST APIs, mentoring juniors, and joining on-call rotations.

API AWS Cloud Cloud Native Distributed Systems +8 skills

Nubeero Limited

Senior Backend Engineer for Data Solutions

NewBe an early applicant North AmericaSenior

Senior Backend Engineer on Stripe's Data Foundations team in Winnipeg, owning data models, SLAs, and scalable data pipelines built with Spark, Scala, and SQL, while using LLMs for data generation and enhancing data marts to track business performance.

Data Pipelines Data Quality Data Science LLM Scala +2 skills

Senior Backend Engineer with Python Skills

NewBe an early applicant HybridNorth AmericaSenior

Senior backend engineer in a hybrid Downtown Toronto role who designs and deploys Python/Flask backend architecture, integrates third-party systems, and supports and troubleshoots production systems for customers. Suited to senior/staff-level engineers comfortable with microservices and API development.

API Flask Microservices Python

Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!

Toronto Senior Backend Developer English Spanish

NewBe an early applicant North AmericaSenior

A Senior Backend Java Developer role in Toronto (hybrid, on-site oriented) designing and maintaining Java/Spring Boot microservices, building and integrating RESTful APIs, managing SQL/PostgreSQL databases, and deploying applications on Azure. Requires 8+ years of backend experience and bilingual fluency in English and Spanish.

API Azure Cloud Java Microservices +4 skills

.NET Backend Engineer at Appnovation

NewBe an early applicant North AmericaSenior

A senior backend engineer builds .NET Core REST APIs, Temporal multi-step workflows, worker services, and event-driven integrations for Appnovation's platform that automates K-12 school administrative tasks, working in a hybrid scrum team with PostgreSQL for data modeling and query tuning.

API .NET Event Driven Architecture PostgreSQL REST +2 skills

Senior Platform Backend Engineer

NewBe an early applicant North AmericaSenior

Senior backend engineer building and operating Go/Rust platform services for Kaseya's IT management platform — event routing and workflows with Kafka/Temporal, machine identity, secrets management/KMS, and immutable audit infrastructure. Hands-on ownership from design through production reliability.

Agentic AI AI API Authentication Automation +24 skills

Senior Backend Developer for Legal Technology

NewBe an early applicant North AmericaSenior

Senior Backend Developer at EvenUp building the backend systems that power LLM deployment for personal injury law. Day to day: designing robust AI backend infrastructure, owning projects from architecture through deployment, and ensuring high performance and observability.

Accessibility AI Distributed Systems LLM Observability

Senior Backend Developer Mobile Banking

NewBe an early applicant North AmericaFull-timeSenior

Senior backend developer on RBC's Mobile Services team in Toronto, leading architecture and implementation of Java/Spring Boot services powering mobile banking. Work involves cloud platforms (Azure/AWS), API design (SOAP/REST), stakeholder collaboration, and mentoring junior developers.

API Api Design AWS Azure Cloud +2 skills

Senior Backend Developer for AI Tools

NewBe an early applicant North AmericaSenior

Senior Backend Engineer at Instrumentl building Python backend services and LLM-powered features that streamline grant discovery and application tasks for nonprofits. Day to day involves resilient service development, SQL data workflows, monitoring, experiments, and cross-functional collaboration.

AI Cloud Containerization Data Pipelines LLM +2 skills

MaintainX (An Autodesk Company)

Senior Backend Developer - MaintainX

NewBe an early applicant North AmericaSenior

Senior Backend Developer at MaintainX builds and evolves backend systems for the internal developer platform using Node.js/TypeScript and GraphQL, implements AI-driven workflows and CI/CD processes, and raises engineering standards so developer teams can scale efficiently.

AI API CI/CD Cloud Distributed Systems +3 skills

Xanadu Quantum Technologies Inc.

Intermediate to Senior Backend Developer - Xanadu

NewBe an early applicant North AmericaSenior

Intermediate to Senior Backend Developer at Xanadu building and scaling back-end products for the pennylane.ai quantum computing platform. Day to day: designing APIs, hardening distributed systems, and improving engineering practices using Python, Go, or Rust, with SQL/PostgreSQL and cloud deployment skills.

AI API Cloud Distributed Systems PostgreSQL +3 skills

Senior Backend Developer (Java 21/Springboot) - Bcnc Group

NewBe an early applicant EuropeSenior

Senior Backend Developer (Java 21/SpringBoot) - BCNC GROUP BCNC GROUPlas palmas de gran canaria, canarias, esDescripción del trabajo En BCNC Group buscamos incorporar un/a Senior Backend Developer Java, con al menos…

API AWS CI/CD Cloud gRPC +13 skills

Senior Backend Developer (Node.js) – Production SaaS, Hybrid

NewBe an early applicant EuropeSenior

flit2GO busca un Backend Developer Senior para unirse a su equipo en Valencia. Obtenga más información sobre este puesto leyendo los detalles a continuación y luego envíe su solicitud para ser considerado. El rol…

Senior Python Backend Developer – Plataforma Distribuida | Remote

NewBe an early applicant EuropeSenior

IT Partner en Palma de Mallorca busca un/a Desarrollador/a Senior Python para incorporar a su equipo de plataforma backend. Si desea saber un poco más sobre esta oportunidad, o está considerando presentar su…

Senior Python Backend Developer – Plataforma (Remoto)

NewBe an early applicant EuropeSenior

IT Partner, ubicado en Las Palmas de Gran Canaria, busca un Desarrollador/a Senior Python para unirse a su plataforma backend. ¿Tiene las cualificaciones y habilidades adecuadas para este trabajo? Descúbralo a…

API CI/CD Docker Kubernetes Python

Grupo TECDATA Engineering

Desarrollador Backend Java Senior | Spring Boot & Kafka

NewBe an early applicant EuropeSenior

Grupo TECDATA Engineering busca un/a Senior Java Backend para Bilbao, Vizcaya. ¿Interesado en saber más sobre este trabajo? Desplácese hacia abajo y descubra qué habilidades, experiencia y cualificaciones académicas se…

BDD Java JPA Kafka Spring +1 skills