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Experience Level
Senior
Qualifications
Proficient in Java and AngularExperience with RESTful APIs and microservicesStrong understanding of database technologies such as SQL and NoSQLFamiliarity with DevOps practices and toolsExcellent problem-solving skills and attention to detailAbility to work in a fast-paced environment and meet deadlines
About the job
Miratech is hiring a Senior Full Stack Developer in Barcelona with a focus on Java and Angular. This position plays a key part in creating and delivering web solutions that improve user experience and support business goals.
What You Will Do
Design and build web applications using Java and Angular
Work closely with cross-functional teams throughout the development process
Contribute to high-quality software delivery
Follow and promote coding and development best practices
About Miratech
Miratech is a leading technology services company, known for its commitment to innovation and excellence. We empower our clients with cutting-edge solutions that cater to their unique business needs. Our team is composed of highly skilled professionals dedicated to delivering value and driving transformation.
Full-time|On-site|Barcelona, Catalunya [Cataluña], Spain
About seQuraseQura is at the forefront of fintech innovation, delivering flexible and user-friendly payment technologies that enhance merchants' ability to attract, convert, and retain customers. We are committed to improving sales performance by customizing solutions across various sectors including Retail, Education, Eyewear, Repairs, and Travel, addressin…
At T-Systems, we lead the charge in technological innovation, providing cutting-edge solutions across various sectors such as automotive, healthcare, and public services. Our AI Foundation Services team is dedicated to creating the platform infrastructure that supports AI inference at scale, including API gateways, authentication, billing, and multi-tenant services. We are committed to designing and developing high-performance backend systems and APIs that drive intelligent applications across diverse industries. Our collaborative engineering culture fosters technical depth, creativity, and ownership, enabling our team to make a tangible impact in the real world.Role OverviewWe are seeking a highly skilled Senior Backend Engineer with expertise in Python development and strong system design capabilities. This role requires deep experience in designing, building, and scaling distributed systems and APIs. You will be responsible for architecting and maintaining the backend platform that underpins our AI inference endpoints, a multi-tenant system managing authentication, API key management, usage metering, and billing services. Your contributions will ensure high-availability and data-intensive AI-powered solutions. This position demands high ownership, allowing you to influence architectural decisions, elevate engineering quality, and develop systems that are performant, secure, and observable at scale. You will collaborate with experts in AI infrastructure and data engineering to create robust, secure, and efficient systems capable of handling millions of requests.Responsibilities and DutiesDesign and build core platform services such as API gateway, authentication, authorization, key rotation, and multi-tenant isolation. Implement and optimize APIs and backend systems utilizing Python frameworks, primarily FastAPI (or Flask, or Django).Architect and implement usage metering, billing integration, and rate limiting for inference endpoints. Maintain scalable, fault-tolerant microservices for data processing and AI integration.Build and operate a high-throughput proxy/routing layer for AI model serving traffic. Work collaboratively with cross-functional teams to design system architecture and ensure interoperability.Integrate telemetry and observability into the platform from the ground up, incorporating structured logging, distributed tracing, metrics, and alerting. Implement robust CI/CD pipelines, monitoring, and observability for high-performance production systems.Drive technical decisions on architecture, data modeling, and technology choices. Identify performance bottlenecks and promote enhancements in reliability, scalability, and latency.Establish engineering standards for the backend codebase, including testing, code review, CI/CD, and deployment practices. Ensure adherence to best practices for security and code quality.
Join Affirm as a Staff Software Engineer specializing in backend deal reporting. In this role, you will contribute to critical systems that facilitate our reporting processes, ensuring accuracy and efficiency. You will collaborate with cross-functional teams to design and implement robust solutions that meet business needs.
Join Delivery Hero as a Senior Backend Engineer specializing in Kotlin to drive innovation in the Quick Commerce sector. In this role, you will design and develop scalable backend systems that enhance our delivery capabilities. You will collaborate with cross-functional teams to deliver high-quality software solutions while ensuring optimal performance and reliability.We are looking for someone who is passionate about technology, thrives in a fast-paced environment, and is eager to take on new challenges. Your contributions will directly impact our mission to provide exceptional service to our customers.
Grafana Labs is a pioneering, remote-first company known for its open-source innovation. With over 20 million users worldwide utilizing Grafana, our acclaimed visualization tool tracks everything from environmental changes to vital medical devices. Our dashboards are iconic, having been featured at events ranging from NASA launches to the Tour de France. We empower over 3,000 organizations, including industry giants like Bloomberg, JPMorgan Chase, and eBay, to navigate their observability strategies through our Grafana LGTM Stack, which can be fully managed with Grafana Cloud or self-managed with the Grafana Enterprise Stack, both offering scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo).As we experience rapid growth, we remain committed to our core values: a robust open-source foundation, a collaborative global culture, and a dedication to impactful work. Our team excels in an environment driven by innovation, where transparency, autonomy, and trust are paramount.If you find this role intriguing, don't hesitate to apply, even if you don't meet every single requirement. This could be a pivotal moment in your career.Senior Backend Engineer - AlertingThis is a remote opportunity, and we welcome applications from Spain.The Opportunity:The Grafana Alerting team plays a vital role in the Grafana open-source project (link), dedicated to delivering comprehensive alert management solutions. Our backend team collaborates closely with clients and Grafana Cloud teams to ensure alerting operates seamlessly, whether on-premises or in the cloud.Our work encompasses a wide array of projects, including:Developing distributed systems to enhance the ingestion and delivery of Prometheus-based alerts.Standardizing alert setup and delivery for both Grafana and Prometheus-based alerts.Building distributed systems to efficiently evaluate Grafana-managed alerts, achieving over 500 evaluations per second in production.Grafana Alerting is trusted by leading organizations worldwide, safeguarding crucial medical apparatus and critical infrastructure. We thrive...
Join our dynamic team as a Senior Backend Developer at SGS in Madrid, where you will play a pivotal role in advancing our backend architecture and driving a culture of technical excellence. We are seeking an individual with exceptional technical leadership abilities who can serve as a guiding force for our engineering team. You will have ownership over our backend platform and be instrumental in enhancing code quality and engineering standards.In this role, you will work on a cutting-edge SaaS platform developed on .NET 10, primarily leveraging Azure PaaS. Our work environment is international and English-speaking, fostering collaboration across diverse teams.Key Responsibilities:Design, develop, and enhance scalable, secure, and maintainable backend systems.Lead development initiatives, making impactful architectural and technical decisions.Act as a technical mentor and resource for team members, fostering their growth.Manage the complete software lifecycle— from conceptualization and design to deployment, monitoring, and iterative improvement.Integrate with modern and legacy systems seamlessly.Collaborate with product, frontend, and DevOps teams to create comprehensive end-to-end solutions.Promote engineering excellence by advocating for best practices, including Clean Code and SOLID principles.Architect and deploy distributed systems and event-driven architectures.Construct and refine CI/CD pipelines to facilitate rapid, reliable delivery.Ensure system reliability, performance, and observability in live production environments.Guide and support fellow developers through code reviews, knowledge sharing, and technical mentorship.Contribute to technical documentation, ensuring effective knowledge transfer within the team.
Our Mission: Empowering small and medium-sized enterprises (SMEs) to flourish in their business endeavors by providing Europe's premier financial workspace. We integrate top-tier tools such as seamless invoicing, spend management, and pre-accounting with attentive 24/7 support, all aimed at simplifying financial processes for businesses.Our Journey: Established by Alexandre and Steve in July 2017, Qonto has swiftly earned the trust of over 600,000 customers. With our dedicated team of more than 1,600 Qontoers, we've been honored in the LinkedIn Top Companies French ranking!Our Values:Customer Focus | We prioritize the needs of our customers above all.Ownership | Take responsibility for your work and drive results.Teamwork | Collaborate effectively to achieve common goals.Mastery | Strive for continuous improvement and excellence.Integrity | Uphold ethical standards and respect everyone.Our Beliefs: At Qonto, we are dedicated to cultivating an inclusive environment where all individuals can excel. We evaluate candidates solely based on skills and potential, and we proudly support diversity within our workforce, comprising 55% international team members, 44% women, and 20% parents. Join us in fostering a workplace that embraces diversity and individuality.Learn about our initiatives for a discrimination-free hiring process.
Service Orchestration: Architect, develop, and sustain the service layer that acts as the gateway for our native iOS and Android Tracking SDKs.API Contract Design: Collaborate with mobile engineers to establish robust and efficient API contracts (REST) that minimize data payloads and latency.System Scalability: Guarantee the dependability of systems managing billions of events, with a focus on high throughput and low-latency response times.Cross-Stack Collaboration: Cooperate closely with core Tracking teams to ensure seamless data flow from UI components through your services and into the global data lake and inner source as necessary.Architecture & Quality: Produce clean, maintainable code and uphold high testing standards. Engage in the RFC process to influence the technical trajectory of the central tracking platform.Operational Excellence: Take ownership of monitoring, alerting, and performance profiling of your services utilizing tools such as Grafana, Sentry, or Prometheus.
Are you passionate about backend development? Join Delivery Hero as a Backend Engineer and be part of a dynamic team that drives innovation in the food delivery industry. In this role, you will design and implement scalable backend solutions, working with cutting-edge technologies to enhance our platform's performance. Collaborate with cross-functional teams to deliver high-quality software that meets the needs of our customers.
Role overview Talan is looking for a Mid-Level Backend Spark Developer to join the team in Málaga. The position centers on building and maintaining backend systems with Apache Spark. Collaboration is a key part of the team’s approach, with a shared goal of delivering dependable solutions that support business needs. What you will do Design and develop backend systems using Apache Spark Collaborate with colleagues across different teams to ensure smooth application integration Contribute to optimizing application performance and reliability Location This role is based in Málaga.
Join our dynamic team at Affirm as a Senior Backend Software Engineer specializing in the Merchant Data Platform. In this fully remote role based in Spain, you will play a crucial part in designing and implementing scalable backend systems that enhance our merchant services. Collaborate with cross-functional teams to drive innovation and optimize our platform for superior performance.
Join Talan as a Senior Backend Developer and contribute to innovative projects that redefine the tech landscape. In this role, you will leverage your expertise in backend development to build scalable and efficient applications, collaborate with cross-functional teams, and drive technical solutions that propel our clients' success.
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
Join SQLI as a Drupal Backend Developer and contribute to a strategic digital platform for one of the world’s top three eCommerce platforms in a dynamic, global, and highly scalable environment.As part of our dedicated team, you will help maintain and enhance our client’s corporate headless CMS, delivering content across multiple markets to eCommerce platforms and mobile applications. This role emphasizes backend Drupal development, enterprise-level system integrations, and a commitment to quality and performance.Key Responsibilities:Manage and enhance a headless Drupal CMS (Drupal 10/11) for Nespresso’s eCommerce site and mobile apps.Design, implement, and maintain REST / JSON:API endpoints in Drupal to ensure structured content delivery to frontend applications (React), adhering to established JSON schemas.Develop integrations between Drupal and commercial solutions, including translation services and Digital Asset Management (DAM) platforms.Create and maintain reusable content structures (Paragraphs, entities, taxonomies) that support a multi-market content model while following Drupal best practices.Improve the editorial experience through the development of intuitive user interfaces and efficient editing workflows tailored for non-technical users.Oversee and optimize Drupal hosting on Acquia Cloud, ensuring high performance, security, and scalability standards.Design and implement effective multi-layer caching strategies (Drupal cache, Varnish, CDN) with appropriate cache invalidation for dynamic content.Collaborate closely with UX/UI designers to ensure compliance with accessibility standards (WCAG) and SEO best practices.Analyze and resolve issues related to APIs, integrations, and content delivery.Maintain high standards of code quality through code reviews, unit testing, and integration testing.Participate in technical validation processes, including exercises and architecture reviews in a collaborative engineering environment.
At EPAM NEORIS, we believe that transformation begins with people. Today, as part of EPAM, we are expanding our global reach and capabilities while maintaining what matters most: a culture where every individual can grow, contribute, and lead the way. We are not just filling positions; we are looking for talent eager to excel, continuously learn, and leave a mark on every project. Our team is diverse, inclusive, and ever-evolving. We promote ideas, not hierarchies, and invest in the genuine development of each person. If you want to work in an environment where your growth is valued as much as the results, we want to hear from you.Supported by over 60,000 professionals in more than 55 countries and a strong Nearshore model, we connect global capabilities with local trust to create real impact, sustainable growth, and high-value results for our clients.We are looking for: Java Backend DeveloperKey Responsibilities:• Design, develop, and maintain REST APIs and backend microservices in digital payment environments.• Implement new features and enhance existing services related to tokenization, e-commerce authentication, and QR code reading.• Analyze technical and functional requirements, proposing viable solutions alongside the development and architecture teams.• Actively collaborate with frontend teams, architecture, and other banking system environments.• Write, maintain, and execute automated tests (unit, integration, and end-to-end), ensuring software quality.• Participate in code reviews and solution certification processes with payment brands.
Become Part of blp – The Leading ERP Automation Solutionblp is a dynamic ETH and HSG spin-off that is revolutionizing ERP automation through innovative AI solutions. Our technology addresses pressing enterprise challenges and fosters a culture of ownership among our team members. Our platform is operational in over 40 countries, empowering more than 20,000 daily active users and automating over 70,000 processes each day.Our AI-driven ERP automation is reshaping sectors such as finance, procurement, logistics, and sales. As one of Switzerland's fastest-growing SaaS scale-ups, we take pride in being self-financed and entirely employee-owned.Our accomplishments are rooted in our deep technological expertise and a thorough understanding of business processes, resulting in an exceptional product that fits the market perfectly, which is validated by our expanding clientele, including Fortune 500 companies.Our rapid expansion and the career opportunities we provide have earned us the LinkedIn Top Startup Award, and we are just beginning our journey. Our headquarters are located on Zürich’s renowned Bahnhofstrasse, an ideal setting for a company that is transforming the way businesses operate.Are you ready to shape the future? Join blp today.About the TeamAt blp, we are dedicated to developing innovative products for automated document processing. Our engineering teams are focused on specific products, such as invoices, customer orders, and order confirmations. Each team takes full ownership of their product, ensuring we comprehend the business challenges our solutions address and guiding the product's development roadmap.We emphasize end-to-end ownership and a commitment to making a tangible impact by tackling real-world challenges. Additionally, we promote a collaborative environment where we collectively decide how to work together and grow, both individually and as a team.Your ResponsibilitiesDrive Impact: Partner with business stakeholders to gather requirements and identify potential enhancements for our product.Build Exceptional Software: Design and create clean, maintainable, and high-quality software. Participate in code reviews and contribute to a culture of technical excellence.Shape Architecture: Collaborate on system design, technology stack selections, and optimizations to ensure scalability, performance, and maintainability.Lead and Influence: Direct technical strategy for significant initiatives, guide product evolution, and mentor team members throughout the process.Promote Innovation and Collaboration: Work closely with colleagues to enhance processes, tools, and team practices while nurturing a culture of continuous learning and growth.
Join the leading eCommerce agency and take your career to the next level!Job OverviewInteractiv4 is seeking talented Backend Magento Developers for our offices in Madrid, Barcelona, and Zaragoza.If you have a keen eye for detail, a passion for writing clean code, and a desire to optimize processes, we want you on our team. We value professional development and continuous learning, making us the perfect fit for your career aspirations.RequirementsEducation: Higher Degree or Engineering, preferably in Computer Science, Telecommunications, Mathematics, or related fields.Proven experience in:Magento architecture and configuration.GIT, MVC frameworks, PHP, HTML, JavaScript, CSS, SASS.Mockup integration and third-party system integration, as well as database design and modeling.Preferred QualificationsKnowledge of UX design, SEO, Photoshop, Knockout, React, Redux, and code quality testing tools will be a plus.Advanced English proficiency and certifications in Magento and Akeneo are desirable.What We OfferJob stability with a permanent contract and opportunities for professional growth.Join a highly skilled team in a technologically advanced environment utilizing cutting-edge market solutions.Social benefits including meal vouchers, childcare support, transportation allowances, etc.
Join our dynamic team as a Backend Developer specializing in the healthcare sector. In this crucial role, you will develop robust backend systems that enhance healthcare delivery and improve patient outcomes. Collaborate with cross-functional teams to design and implement scalable solutions that meet the evolving needs of our clients.
About the Role Septeo is looking for a Senior PHP Backend Developer in Murcia. This position focuses on designing and building backend systems that support and improve our products and services. The work centers on PHP development, with a strong emphasis on performance and scalability. What You Will Do Design and implement backend solutions using PHP Work closely with teams across disciplines to deliver reliable software Contribute to the quality and efficiency of our backend architecture Help ensure our systems perform well and scale as needed Location This role is based in Murcia.
Join Scalian as a talented Java Backend Developer specializing in Microservices. In this full-time role, you will play a crucial part in designing, developing, and maintaining scalable backend solutions that enhance our application architecture. You will collaborate with cross-functional teams to deliver high-quality software and ensure optimal performance and reliability.
