10,374 Senior Backend jobs

Inetum

Backend Java Mid-Senior | Microservicios & Spring Boot

Builds and maintains Java-based microservices for banking systems using Spring Boot in a collaborative team.

Desarrollador Backend Senior – APIs Escalables

Build and maintain scalable backend services and APIs using microservices architecture while enforcing engineering best practices.

Inetum

Java Backend Engineer (Mid-Senior) – Banking Microservices

Java MongoDB Oracle Spring

Build and maintain Java-based microservices for a banking platform using Spring Boot, Oracle, and MongoDB in a collaborative team.

ACIERTA HEADHUNTER

Senior Java Backend Engineer — Spring & REST

Senior Java backend engineer building and maintaining RESTful services with Spring for a recruitment agency.

Desarrollador Python Senior Remoto – Backend & Microservicios

Cloud FastAPI Flask GCP Python

Senior Python developer building and scaling backend services using FastAPI, Flask, and Google Cloud Platform in a fully remote role.

Zemsania

Senior Java Backend Engineer for Scalable Apps

Build and maintain scalable Java backend services, optimize performance, and collaborate with teams using Docker, Kubernetes, and agile practices.

Docker Java Kubernetes

Sysman

Desarrollador Backend Senior con experiencia en Inteligencia Artificial

Build and maintain scalable backend services, integrate AI models into enterprise apps, and optimize performance using REST APIs and microservices.

Senior Backend Developer (Java / Spring Boot / Microservices)

API Api Design Authentication Automation AWS +24 skills

Build and maintain scalable Java/Spring Boot microservices, REST/GraphQL APIs, and secure multi-tenant systems in a cloud-native environment.

Factech Servicios Informáticos

Senior Java Backend Developer — Relocation a España

Builds scalable Java backends and APIs in a product team, focusing on quality and modern practices.

Senior Backend Java Developer – Alto Rendimiento y Nube

AWS DevOps Java NoSQL Spring

Builds high-performance backend services in Java/Spring, working with relational and NoSQL databases to solve customer problems.

GFT Technologies

Desarrollador Backend Senior | Microservicios y Cloud

API AWS Cloud DevOps EKS +11 skills

Build and maintain complex backend microservices using Java 17, Spring Boot, and cloud-native tools like Kubernetes and AWS, ensuring high availability and security.

Lefebvre Sdu

Open 36d EuropeSenior Licensed NL sponsor

Senior Backend Engineer - AI Knowledge Base (Python/Java)

AI Elasticsearch Java Kotlin Python +2 skills

Builds and optimizes the backend pipeline that converts millions of documents into structured knowledge for AI agents using Python, Java, and Elasticsearch.

Infinity Quest

Senior Java Backend Engineer • Spring Boot, AWS, CI/CD

Open 36d EuropeSenior

API AWS CI/CD Cloud DevOps +4 skills

Designs and builds Java microservices and REST APIs in AWS, sets up CI/CD pipelines, and monitors systems with Grafana.

SPERTON - Where Great People Meet

Senior Java Backend Engineer: Cloud-Native Microservices

Open 36d EuropeSenior

AWS Cloud DevOps Java Microservices +2 skills

Designs and builds cloud-native Java microservices on AWS using Spring Boot, collaborating with cross-functional teams to deliver secure, scalable backend systems.

Gigs

Senior Software Engineer, Backend

Open 36d EuropeSenior

API Elixir Observability Rails Ruby +2 skills

Build backend services and APIs in Ruby, Go, TypeScript and Elixir to embed global connectivity into fintech and mobility platforms, while migrating a monolith toward a distributed system.

Senior Backend Engineer - Python

Open 36d RemoteEuropeContractSenior

API Automation AWS CI/CD Cloud +11 skills

Build and maintain scalable Python backend systems using GraphQL, AWS Lambda, and DynamoDB for global enterprise clients.

Lumenalta

Open 36d RemoteEuropeSenior

Senior Backend Engineer (AWS)

Automation AWS Azure CDK CI/CD +15 skills

Senior Backend Engineer builds and maintains scalable, secure cloud systems on AWS and Kubernetes using Python, Terraform, and monitoring tools like Grafana.

Fliff

Open 36d RemoteEuropeSenior

Senior Python Backend Engineer — Scale High‑Perf Systems