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Experience Level
Experience
Qualifications
Proficiency in Python programming language. Experience with web frameworks such as Django or Flask. Knowledge of RESTful APIs and microservices architecture. Familiarity with database management systems such as PostgreSQL or MySQL. Ability to work collaboratively in a team environment. Strong problem-solving skills and attention to detail.
About the job
About the Role
Neoris is hiring a Python Developer in Madrid. This role focuses on building scalable applications and tools that support business operations and drive efficiency. Collaboration with teams from different functions is a key part of the work.
What You Will Do
Design, implement, and maintain software solutions using Python
Work with colleagues across departments to understand needs and deliver effective tools
Contribute to projects that improve processes and operational performance
Location
This position is based in Madrid, Spain.
About Neoris
Neoris is a global consulting firm specializing in digital transformation and technology solutions. With a strong presence in Madrid, we pride ourselves on our commitment to innovation and excellence. Join us and be part of a dynamic environment where your ideas and contributions are valued.
We only consider applications based in Spain. Lynx Financial Crime Tech S.A. is actively seeking a talented Junior Backend Developer to join our dynamic team in Madrid. WHY YOU SHOULD CONSIDER THIS OPPORTUNITYAt Lynx Financial Crime Tech S.A., we are at the forefront of AI-driven software development, specializing in identifying and predicting behavioral pat…
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Nexthink is seeking a talented Java Engineer who possesses a strong passion for learning and innovation. If you are someone who enjoys challenging the status quo and is eager to enhance your skills, you will be a perfect fit for our dynamic team. We are focused on pushing the boundaries of digital employee experience, and we need your expertise to help us lead the way.As a motivated, results-oriented, and detail-focused individual with a sense of product ownership, you will thrive in our collaborative environment. This is a unique opportunity to join a fast-paced, Silicon Valley-like unicorn company, and we are excited to meet you!In this role, you will be responsible for designing, building, and delivering robust and scalable distributed services that process billions of events, utilizing modern cloud-native features and techniques. Your contributions will enhance the reliability and efficiency of our platforms, directly influencing our product and engineering DevOps practices to ensure high system availability, scalability, and performance.
Join our dynamic team at Voicemod as a Senior NodeJS Backend Developer. You will play a pivotal role in designing and developing innovative backend solutions that elevate our voice modulation technology, enhancing user experiences globally.
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Role overview SGS is looking for a Java Full-Stack Developer to join the team in Madrid. The position covers both front-end and back-end development, supporting the creation and maintenance of software solutions. Success in this role depends on practical experience and clear communication with colleagues from various areas. What you will do Develop and maintain applications using Java along with modern web technologies Work alongside team members from different disciplines to achieve project objectives Help design, implement, and refine software solutions Requirements Strong experience with Java Proficiency in current web development frameworks and tools Comfort working collaboratively within a team This is an on-site role based in Madrid.
About Us:TransPerfect is a leading provider of translation software with a dynamic and innovative start-up culture. We are on the lookout for a passionate and inventive Backend Developer to join our groundbreaking Artificial Intelligence (AI) team. As a member of this division, you will play a pivotal role in shaping the future of AI within a globally recognized organization. Our AI team, which has evolved over the past decade since the inception of our first machine translation models, is a key driver of innovation in machine translation, generative AI, natural language processing, and automation.We seek an experienced backend developer who is enthusiastic about exploring the limits of technology and making a meaningful impact in the AI domain. You will collaborate with a diverse, global team of professionals from the USA, Spain, Portugal, and India. If you have a strong passion for building robust and scalable solutions that deliver AI capabilities to users, this is the perfect opportunity for you.About the Role:As a Backend Developer, you will address the challenges of document processing, specifically converting complex, unstructured PDFs into well-formatted, editable .docx files. Your objective will go beyond simple text extraction; you will aim to faithfully recreate the visual and structural intent of the original documents, including nested tables, multi-column layouts, font hierarchies, and styling.In this hybrid role, you will lead the research and implementation of our document conversion pipeline. This position requires both strategic decision-making—keeping abreast of existing tools—and hands-on development, blending engineering and AI expertise.You will be responsible for:Comparative Analysis: Conducting comprehensive evaluations of commercial (e.g., ABBYY, Adobe, AWS Textract) versus open-source/AI-native (e.g., Mistral OCR, Docling, Nougat, LlamaParse) solutions.Benchmarking: Establishing metrics for "format fidelity" to objectively assess how effectively a tool reproduces headers, footers, tables, and styles.Pipeline Development: Developing a Python-based workflow that integrates OCR engines with document generation libraries (such as python-docx or Pandoc).
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Job Highlights Location: Fully Remote (CET hours preferred) Compensation: €4,700 - €6,100 + stock options Language: Work within a Russian-speaking team About Fundraise Up At Fundraise Up, we are transforming the landscape of nonprofit fundraising by creating a platform that simplifies the donation process, making it quick, seamless, and accessible for everyone. Our cutting-edge technology facilitates tens of millions of dollars in donations worldwide every month. We prioritize innovation that drives results, focusing on faster load times, improved conversion rates, global payment solutions, and an accessibility-first design. Our platform is trusted by some of the world’s leading nonprofits, including UNICEF and the Alzheimer’s Association, among many others. With an impressive 4.9 out of 5 rating on top software review platforms, we are celebrated not only for our impact but also for the exceptional quality of our product. A Truly Global Product We serve nonprofit organizations across North America, the UK, Australia, and Europe, operating in the enterprise segment. We are developing a comprehensive product ecosystem that caters to nonprofits, donors, and partners globally. Our offerings include a modern checkout experience, customizable widgets, donor and organization portals, admin tools, and various internal applications. The backend of our platform is powered by Node.js (Koa, NestJS) and MongoDB, while our frontend uses Webpack, Vue.js, and React, with the majority of our code written in TypeScript. For high-throughput messaging and background tasks, we utilize Kafka (handling millions of events) and Bull (Redis). Analytics are managed via ClickHouse, and Elasticsearch is employed for search functionalities. The Team Our team consists of over 160 product professionals, including more than 80 engineers, distributed across Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Many of our developers possess 5-10+ years of experience, fostering a culture rich in technical curiosity and knowledge sharing. We operate with the agility of a small team, where every task is significant, and every voice is valued. Collaboration, robust engineering practices, and a focus on product quality are at the core of our culture. Our biweekly engineering forums provide a platform to share insights and celebrate technical successes. You’ll become part of a team that prioritizes quality, mentorship, and mutual respect. About the Role As a Backend Developer, you will play a pivotal role in architecting the engine that drives our global platform. You will tackle complex challenges within a high-load, distributed system, developing and scaling the infrastructure that processes millions in donations. This position goes beyond mere maintenance; it’s about building a resilient system that supports our mission.
jobgether seeks a Backend Developer to join its Research Group on a B2B contract. This position centers on developing and enhancing backend systems that support research-focused projects. What you will do Build and refine backend solutions for research initiatives Collaborate with a team that values creative problem solving and strong technical skills Location This is a remote role based in Spain.
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Anyone AI seeks experienced Backend Developers based in Spain to support a high-profile AI laboratory project. This remote, part-time role centers on expert evaluation tasks and the creation of realistic software engineering exercises. Role overview As a Backend Developer - AI Trainer, the primary focus is on designing and assessing complex coding challenges. Tasks include bug fixes, feature development, refactoring, migrations, and test generation. The position involves both creating coding scenarios and reviewing peer submissions for accuracy and quality. Responsibilities Design and implement multi-file coding assignments covering bug resolution, new features, refactoring, and testing Write clear, natural-language specifications and provide reference implementations Develop and improve unit and integration test suites Review and evaluate peer-generated tasks for correctness, clarity, and realism Identify edge cases, ambiguities, and potential failure points Ensure alignment between specifications, code, and expected results Requirements Exceptional written English skills 3–7 years of experience in software engineering Advanced proficiency in Python and JavaScript or TypeScript; familiarity with Java, C#, or Go is a plus Background in backend or full-stack development within production settings Knowledge of testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing Strong debugging skills and the ability to navigate large, multi-file codebases Experience with code reviews, refactoring, and production migrations Engagement details Part-time, project-based work Remote from anywhere in Spain Expected outcomes Deliver high-quality, production-ready coding tasks that meet industry standards
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About UsAt Fortis Games, we strive to create exceptional gaming experiences that unite players, while also transforming the gaming industry. Our focus is on fostering a sense of community and belonging, both within our games and among our team. We aim to build meaningful connections through the communities we create, generating unforgettable moments. Our commitment to diversity, equity, and inclusion means that everyone’s unique skills and backgrounds are valued, contributing to our innovative game development process.As a dynamic start-up led by industry veterans, Fortis Games offers you a unique opportunity to significantly influence our products and the company's trajectory. If you are passionate about solving complex challenges with effective communication and a collaborative mindset, you might just be the perfect fit for our team.Role OverviewIn your role as a Staff Backend Engineer at Fortis, you will play a vital part in developing our exciting Original IP, guiding it from initial concept through to launch. You will work in close collaboration with talented game designers, artists, and fellow engineers to design, implement, and deliver a large-scale multiplayer experience that will leave a lasting impression on players.Key ResponsibilitiesDevelop and enhance game features from prototyping to live operations, ensuring quality and stability at every stage of the lifecycle.Design, implement, and maintain scalable CI/CD pipelines to optimize development and deployment workflows.Analyze backend systems to identify and resolve complex bugs and performance bottlenecks.Conduct backend load testing to ensure the infrastructure can support high player engagement and peak activity.Collaborate with client-side engineers to create secure, server-authoritative gameplay mechanics.Establish and maintain DevOps workflows in a cloud environment, primarily utilizing AWS services.Produce clear and well-organized technical documentation to communicate design choices and system architecture to the team.Contribute to the development of studio-wide engineering standards by adhering to and shaping best practices in code quality and guidelines.
