178,731+ Backend Engineer Java Python Jobs in Spain — Top Companies Hiring June 2026

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Senior Golang Backend Engineer (Portugal/Spain)

About the project Impressit is looking for a Senior Golang Backend Engineer to join a cross‑functional product team working on distributed backend systems. This is a great opportunity to contribute to a product with real‑world usage, while working with modern technologies and international teams. ...

Senior .NET Backend Engineer — Microservices & Azure

Tata Consultancy Services seeks a seasoned .NET Developer to join the team in Madrid. The role involves designing and maintaining backend services using C# and .NET within a microservices and event-driven architecture. Ideal candidates will have 8+ years of experience with strong expertise in Azure services, SQL ...

Remote Scala Backend Engineer – Microservices & Kafka

Signify Technology is seeking a Scala Developer to join their Backend team, working remotely across Europe. The role involves engaging in exciting new projects and deploying features in microservices to enhance customer engagement on the platform. The ideal candidate will have extensive experience with Scala and ...

Backend Engineer, Wallets: Scalable & Secure Microservices

Framework Ventures in Madrid is looking for a backend developer to contribute to innovative projects aimed at building robust and secure solutions for Tether's platform. The role requires proficiency in Node.js and JavaScript, along with experience in microservices architecture and database interactions. The ide ...

Senior Backend Engineer (GO, API Getaways)

About Workato Workato delivers enterprise infrastructure for the agentic era, redefining iPaaS and helping enterprises unify data, applications, processes, and AI into a single, governed platform. A leader in Enterprise MCP and trusted by 50% of the Fortune 500, Workato’s cloud-native architectur ...

Innovative .NET Backend Engineer (C# & Azure)

DEKRA Digital & Product Solutions is looking for a .Net Backend Developer in Málaga, Spain. The role focuses on developing .NET C# solutions, following best practices, and ensuring optimal performance. Candidates should have a Bachelor's degree in a STEM field and 2+ years of relevant experience. Knowledge of Az ...

ERP Backend Engineer Data Migration (Remote)

arsys EN is looking for a Specialist Software Engineer to join their ERP Development team in Barcelona. The role involves designing and developing technical components for ERP systems, particularly focusing on data migration from Infor to SAP. Candidates must have experience with ERP technologies like SAP or Ora ...

Senior Go Backend Engineer Observability Platform

New Relic, Inc. is seeking passionate engineers for a new observability experience. This role is crucial for building next-generation services and requires strong expertise in GoLang, distributed systems, and cloud platforms. You will work in a creative agile environment, collaborating to deliver innovative s ...

Hybrid Backend Engineer Space Microservices & Kubernetes

GMV Spain is looking for an experienced backend developer to join their team focused on satellite control centers. Candidates should have at least 4–5 years in backend development, experience with Java, Docker, and microservices. This position involves critical system design and development responsibilities i ...

Backend Engineer – Scalable RTC/VoIP Infra

Hard Yaka is looking for a skilled backend developer to join their Programmable Communications Team. In this role, you will design and operate scalable backend services and CI pipelines to support real-time communication solutions. Ideal candidates will have a robust understanding of RTC/VoIP technologies and ...

Backend Engineer Scalable .NET Microservices & Cloud

A global technology firm in Spain is looking for a Backend Software Engineer to enhance customer engagement through innovative solutions. You will design distributed backend services using .NET and engage in cloud migration efforts. The role requires collaboration with product teams and a strong understanding of ...

Senior Backend Engineer — Distributed Systems (Remote)

Diabolocom UK Ltd is seeking a Senior Backend Software Engineer to join their Auxiliary Squad. This team is crucial for providing secure, high-performance access to the Diabolocom platform, managing core components such as the API Gateway and Authentication Services. The ideal candidate will have over 7 years ...

Backend Engineer Flexible Hours, Growth & Impact

A leading mobility company in Madrid is seeking an adaptable engineer experienced with any backend technology such as Go, Elixir, or Ruby. The role involves collaborating on architecture, mentoring junior developers, and improving service reliability. The ideal candidate should have experience in developing web ...

Senior Backend Engineer, Serverless Payments (Remote)

MONEI is seeking a full-time Senior Backend Engineer to join their dynamic team in Barcelona. In this role, you will develop backend services that ensure a seamless digital and physical payment experience. Collaborating with seasoned engineers, you'll reinforce their serverless architecture and mentor junior ...

IVR & Contact Center Backend Engineer (Microservices)

Panel Sistemas Informaticos busca un ingeniero backend especializado en Callflows y IVR en Madrid, España. Se requiere experiencia en diseño, desarrollo y mantenimiento de flujos de llamada, integraciones de voice bots, y arquitecturas de microservicios. Buscamos un perfil con sólidos conocimientos técnicos en J ...

Backend Software Engineer Distributed Systems & Scale

The Trade Desk is looking for a Software Engineer based in Madrid, Spain. The role involves full lifecycle development, collaborating with diverse teams to create robust data-focused products. Key responsibilities include designing, delivering, and maintaining software solutions. Ideal candidates will have 2+ ye ...

Senior .NET Backend Engineer — Cloud & Microservices

SoftwareONE Deutschland GmbH busca un/a Senior Backend Developer .NET en León, España. El candidato diseñará y desarrollará soluciones backend escalables para proyectos de transformación digital. Se requiere experiencia sólida con .NET, desarrollo de APIs REST, y conocimientos en bases de datos. Además, se valor ...

AI Backend Engineer: Document Conversion & OCR

A leading translation software company in Barcelona is seeking a passionate Backend Developer to enhance AI-driven document processing. In this role, you will lead projects converting unstructured PDFs into editable documents, utilizing your expertise in Python and OCR technologies. Join an innovative team and h ...

Hybrid Spark/Scala Backend Engineer (ETL)

A leading technology company in Madrid is seeking a Spark/Scala Developer to contribute to ETL processes within an Agile environment. The ideal candidate will have a basic knowledge of Spark and Scala, and experience with JIRA is preferred. This position offers flexible working options, allowing you to work from ...

Senior Backend Engineer – Cloud, Microservices & Data

A leading technology company in Spain is looking for a professional with substantial experience in Java and Spring Boot for the development of product data solutions. The role involves key responsibilities such as building distributed software applications and implementing cloud-native frameworks. You will work ...

AI Backend Engineer — LLMs & Agents, FastAPI

A leading global communications firm is seeking an AI Developer to design backend architecture for conversational agents. Responsibilities include integrating with foundational models, developing APIs, and managing cloud infrastructure. Ideal candidates should have strong Python skills, experience with FastAPI, ...

Staff Backend Engineer — Architect Microservices (Remote)

A leading technology firm based in Madrid is looking for a Staff Backend Engineer to design and develop complex enterprise applications. You will lead backend architecture and mentor teams while working fully remotely. The ideal candidate will have 7+ years of experience in backend development and expertise in m ...

Lead .NET Backend Engineer — REST & CQRS

Una empresa del sector tecnológico en Madrid busca un/a desarrollador/a Backend como Team Lead. La persona seleccionada desarrollará soluciones tecnológicas utilizando .NET 6/7/8 y diseñará bases de datos SQL. Se valoran habilidades en comunicación y trabajo en equipo, así como la capacidad de aprender nuevas te ...

Backend .NET Engineer: Modernize Legacy & APIs

Una empresa innovadora de tecnología en Madrid busca un Backend Developer para optimizar y modernizar su sistema actual. Se requiere dominio en Visual Basic y .NET Core, así como experiencia en migración de módulos y desarrollo de APIs RESTful. Ofrecen un salario entre 30-35K y un modelo de trabajo híbrido. Se v ...

Senior Backend Engineer (m/f/d)

Location : Come and join us in Barcelona! We are looking for a talented and motivated Senior Backend Engineer (m/f/d) for our new Driver Onboarding team. As part of a highly skilled, cross‑functional team comprising Fullstack Engineers, Backend Engineers, a Product Manager, a ...

Senior Backend Engineer: Driver Onboarding & Validation

A European mobility platform is seeking a talented Senior Backend Engineer in Barcelona. You will join a cross-functional team focused on optimizing the driver onboarding process. Responsibilities include enhancing automated document validation systems and collaborating with multiple teams to improve the driver ...

Senior Backend Engineer IAM & Integrations (Barcelona)

A technology firm is seeking a Senior Software Engineer to drive product development and enhance API and integration systems. This role, based in Barcelona, focuses on backend development with some frontend initiatives. The ideal candidate will have over 7 years of software engineering experience and be proficie ...

Staff Backend Engineer, Treasury Management Remote

A progressive tech company in Madrid is seeking a Staff Backend Engineer for the Treasury Management team. The position involves designing and maintaining scalable backend systems primarily using Kotlin. You will have ownership of service architectures in a financial context and collaborate with cross-functional ...

Backend Engineer (TypeScript) for Crypto Platforms

A technology recruitment platform is seeking a Backend Engineer to own backend systems for a crypto and self-custody platform. This role involves designing, implementing, and operating scalable backend services using Go and TypeScript, while ensuring high code quality and performance. Candidates should have expe ...

Backend Software Engineer Gaming Platform (Hybrid)

A gaming technology company in Barcelona is looking for a Software Engineer to enhance their backend platform. You will have the opportunity to work in a collaborative environment, implementing modern software practices and contributing to the gaming experiences of thousands. The role offers a hybrid work model ...

Senior Kotlin Backend Engineer — Cloud & DevOps

A leading electronics retailer in Spain seeks a software developer to join its Global Loyalty team. This role involves designing robust backend services using Kotlin and managing scalable cloud applications on Google Cloud. Candidates should have over 5 years of experience and be familiar with tools like Docker, ...

Senior Backend Engineer (m/f/d)

Overview Location: Barcelona. We are looking for a talented and motivated Senior Backend Engineer (m/f/d) for our new Driver Onboarding team. As part of a cross-functional team, you will help shape the future of mobility with FREENOW and assist our drivers in their daily work. Our team fo ...

Senior Backend Engineer – Driver Onboarding Platform

A leading mobility service provider in Barcelona is looking for a passionate Senior Backend Engineer to join their Driver Onboarding team. This role involves designing and implementing a seamless driver registration process and developing automated systems for document validation. The ideal candidate should have ...

Senior Backend Engineer (Golang) – Barcelona Onsite

A leading technology company is expanding their Tech team, seeking a Senior Software Engineer to enhance backend systems in Barcelona. This role involves designing and developing APIs, ensuring high-quality, testable code, and collaborating with product teams. Candidates should have extensive backend development ...

Backend Software Engineer II – IAM & Integrations

A leading technology company in Barcelona is seeking a Software Engineer II to enhance their Identity Access Management and Integrations Team. This role involves backend development with Ruby and relational databases, as well as collaboration with diverse teams. Candidates should have over 3 years of experience, ...

Backend Engineer Core AI Platform (Hybrid)

A tech-driven company in Comunidad de Madrid is seeking a Software Engineer to shape their core AI framework and lead the development of scalable backend services. The ideal candidate will have over 5 years of experience with Node.js and TypeScript and a solid understanding of AI/ML integrations. The role offers ...

Senior Backend Engineer: Spring Boot & Microservices

Una empresa innovadora en el sector alimentario busca un Senior Backend Developer para liderar proyectos de software y decisiones estratégicas. Este rol es clave para la transformación cultural de equipos en expansión y la mejora continua de procesos. Con un enfoque en soluciones sostenibles y un ambiente intern ...

Senior Backend Engineer, IAM & API Integrations

A tech company in Barcelona is seeking a Senior Software Engineer to lead product areas and collaborate with diverse teams. The role involves driving best practices for APIs, integrations, and IAM systems. The ideal candidate has over 5 years of experience in software engineering, with expertise in web APIs and ...

Backend Engineer ASP.NET, SQL, Flexible Hours

A leading software development company in Spain is seeking a Senior Backend Developer to accelerate delivery and support the development of backend systems. You will develop and maintain backend applications and work closely with the team to ensure smooth project execution. The ideal candidate has strong experie ...

Senior Backend Engineer WebAssembly & Cloud SaaS

Wasmer, located in Madrid, is seeking a skilled Backend Developer to help enable WebAssembly across various infrastructures. You will collaborate closely with a highly technical team, leveraging your expertise in Python and GraphQL, while also exploring Rust and WebAssembly. The position encourages telecommut ...

Backend Software Engineer — Flexible, Remote Options

An innovative banking institution is seeking a skilled Software Backend Engineer based in Valencia, Spain. You will design, develop, and test software, ensuring quality and performance standards. Collaborating within a cross-functional team, you'll utilize your expertise in Java, Spring, and Microservices. The r ...

Generative AI Backend Engineer – GraphQL & Azure

Astek in Galicia is looking for a Backend Engineer with a passion for Generative AI to join our fintech partner. You will bridge the gap between user-facing AI applications and core backend infrastructure, designing and maintaining robust services and GraphQL APIs. The ideal candidate will hold a degre ...

Generative AI Backend Engineer – GraphQL & Azure

Astek is seeking a Backend Engineer with a passion for Generative AI to help build scalable and secure AI-powered systems. You will design and maintain services, GraphQL APIs, and data systems for next-generation AI solutions. The ideal candidate will have a degree in Computer Science, 1–2 years of exp ...

Generative AI Backend Engineer – GraphQL & Azure

Astek, based in Galicia, Spain, is seeking a talented Backend Engineer with a passion for Generative AI to join our fintech partner. You will design robust services and GraphQL APIs that support next-generation AI solutions on Azure. The ideal candidate holds a degree in Computer Science or Software En ...

Senior .NET Backend Engineer | Remote & Kubernetes

TechsBCN en Carballedo busca un desarrollador Backend de .NET para unirse a su equipo técnico. Se requieren al menos 6 años de experiencia en entornos de back .NET, así como conocimientos en Kubernetes, Docker y patrones de diseño. Se ofrece un contrato indefinido con la opción de trabajo remoto o mixt ...

Backend engineer NodeJS Program / Service Maritz

Localidad : Barcelona Provincia : Barcelona Nº Vacantes (puestos) : 1 Modalidad: Hibrida Funciones En estrecha colaboración con el responsable del producto CRM y el resto del equipo de desarrollo, desarrollará historias de usuario, corregirá errores y participará en la ...

Staff Backend Engineer — Scale Global Platforms

OLX Group is looking for a Staff Engineer in Barcelona, Spain. The role involves aligning engineering with strategic initiatives, mentoring teams, and developing large-scale web applications that serve billions of views per month. The ideal candidate will have a strong background in Python and experien ...

Generative AI Backend Engineer: FastAPI & GraphQL

Astek is seeking a Backend Engineer in Galicia, Spain, passionate about Generative AI to strengthen their fintech partner. You will bridge user-facing AI applications with core backend infrastructure, crafting robust services and GraphQL APIs. The ideal candidate has a degree in Computer Science or rel ...

Founding Backend Engineer — Payments & Billing (Equity)

Share is hiring a Founding Software Engineer to drive the platform's payments and billing systems. You will work closely with the CTO and a dedicated team, managing critical technical domains and shipping production systems handling real transactions. We seek candidates with 7+ years of software engine ...

Growth & Subscriptions Backend Engineer Hybrid Barcelona

Rocketlist is looking for a Backend Engineer in Barcelona to work on the Grow & Engage domain. This role focuses on subscriptions and membership features, delivering scalable backend systems. The ideal candidate will design, develop, and maintain backend software, manage project priorities, and collabo ...

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