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Process Automation Developer (Python/AWS)
Designs, builds, and maintains event-driven process automation on AWS serverless services (Lambda, EventBridge, S3, CloudWatch) using Python, integrating external/internal APIs and databases (MySQL, Postgres, Snowflake). Uses CI/CD, Terraform, GitHub, and Podman; Node.js and AWS Bedrock/GCP Vertex are a plus.
Python Developer
Backend developer at Paradigma Digital in Madrid building fast, robust, observable APIs with Python and Django. Day-to-day focuses on API and PostgreSQL performance tuning, caching with Redis/Valkey, async tasks with Celery, observability via OpenTelemetry/Datadog, GitLab CI/CD pipelines, and AI-assisted coding tools like Claude Code.
Backend Developer (C.NET)
Backend developer building custom integrations in C#/.NET that connect third-party systems with SKIDATA's access solutions — owning projects from design through testing and documentation, working with APIs like REST, SOAP, gRPC and RabbitMQ, and supporting integration partners. Based in Madrid (hybrid).
AI Engineer / Backend Developer
Backend/AI engineer at Mindsight Ventures (Barcelona, hybrid) building AI-driven systems and backend infrastructure for internal and client projects: designing APIs and data pipelines, deploying ML models with MLOps, and scaling on cloud (Azure preferred) using Node.js/TypeScript or Python, Docker, and modern RAG/vector-DB patterns.
Senior Backend Developer
Senior Backend Engineer for an AI-native SaaS platform near Barcelona: designing and scaling distributed, high-availability backend services with Django/Python and PostgreSQL, integrating external APIs, and strengthening observability, testing, CI/CD and team engineering standards. Hybrid role with 2 required office days per week.
Java backend developer
K-LAGAN is hiring a Java backend developer in Barcelona to work on international logistics and intralogistics automation projects, building and integrating WMS/WCS solutions. Day-to-day work involves Java 17 and Spring Boot services, REST APIs, Oracle/SQL databases, and testing with JUnit/Mockito, with travel to project sites for commissioning.
Backend Developer In Healthtech
Senior backend developer at Biorce's Barcelona hub building and owning core backend services for Leadro, an AI-powered drug-development platform — data models, APIs, GTM integrations, and LLM/agentic features. Core stack: Node.js/NestJS, TypeScript, PostgreSQL/BigQuery, and GCP, in a hybrid work model.
PHP Backend Developer
PHP Backend Developer at Tappx, an AdTech firm in Spain: design, build, and maintain highly scalable SSP products and internal PHP tools, owning the full system lifecycle from design to production monitoring. Works with PHP, MySQL, NoSQL/Redis, CI/CD, and AI tools; hybrid in Barcelona/Madrid or 100% remote within Spain.
Desarrollador Backend Senior (Hidrocarburos Remoto)
Fully remote senior backend developer role serving a client in the hydrocarbons/energy sector via recruiter Placements24: designing scalable APIs and microservices, managing databases, and running cloud/containerized systems. Stack includes Python/Java/Go/Node.js, PostgreSQL/MySQL/MongoDB, AWS/Azure/GCP, and Docker/Kubernetes.
React developer in micro frontends
React developer on TBWA-DDB's Digital Production team in Barcelona (hybrid), building Feature Apps in a micro frontends architecture for a leading international brand. Day to day: integrate the frontend with corporate APIs, maintain production apps, collaborate with Java/Spring Boot backend engineers, and optionally grow toward fullstack work (incl. Salesforce).
Desarrollador/A Backend Senior
Senior backend developer (with project-manager duties) at a family-safety smartwatch company: designs, builds and maintains Node.js APIs and services backed by PostgreSQL, integrates RabbitMQ messaging, writes unit/integration tests, and works in agile Scrum/Kanban workflows; Docker, AWS and Jenkins CI/CD experience valued.
Desarrollador Backend Java - Microservicios Sector Público
Senior backend developer building scalable web applications and RESTful APIs with Python and Django (incl. Django Rest Framework) for a tech startup, working fully remotely from Madrid. Focus on performance tuning, code reviews, and production debugging; note the posting title mentions Java/public sector but the description describes a Python/Django role.
Senior Frontend Developer
Senior frontend developer in Madrid on a time-limited initiative to migrate Otto Group's online shop to SCAYLE's new platform architecture, adapting the GraphQL API layer and Next.js storefront. Core stack: React, Next.js, TypeScript, GraphQL, in an international agile team.
Senior AWS Cloud Operations Engineer
Senior engineer owning day-to-day operations and reliability of a production AWS environment: managing EC2/S3/RDS, monitoring with CloudWatch, troubleshooting incidents, IAM security, and serverless services (Lambda), while supporting DevOps CI/CD and infrastructure-as-code with Terraform/CloudFormation, collaborating with a client team during US business hours.
Sales Operations Analyst - Payward Services - Internal
This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Sales Operations Analyst – Payward Services – Internal based in Germany. We are…
Quality Assurance Analyst
Quality Assurance Analyst at Bank of Utah's Ogden branch who tests the bank's applications — including the Fiserv DNA core banking platform — by writing test plans and scripts, tracking defects, coordinating business-user testing, and supporting system releases using tools like monday.com, Jira, Xray, TestRail, and Azure DevOps.
Software Engineer
Junior-to-mid back-end engineer at Echobox, building and scaling the server-side services behind the company's AI-powered products for online publishers. Day-to-day involves back-end development with Python/Java/Node.js, SQL/NoSQL databases, REST APIs and microservices, cloud deployment (AWS/GCP/Azure), and collaboration with data scientists.
Microsoft 365 Integration Engineer
Fully remote (India-based) backend integration engineer building Microsoft 365 connections — Microsoft Graph API, SharePoint Online, Outlook/Exchange Online, Azure, Entra ID/OAuth 2.0 — that power AI-driven legal contract and document workflows for an early-stage AI product team. Requires 3+ years software development and 1+ year hands-on with Graph API.
Senior Software Engineer (Contract)
Contract senior engineer on Experian's Platform Services team in Cyberjaya, building and maintaining cloud-based applications, RESTful APIs, and shared microservices that power Experian's products. Full-stack work spanning Java backend services, JavaScript web UIs, and AWS-based DevOps with Docker, Kubernetes, Jenkins, and Terraform.