Ofertas de empleo de Programador/a Back-End en Madrid

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• PublicadaNueva

. .Net C# ASP.Net Docker Cloud Coumputing Kubernetes DevOps QA Microservices DDD

¡Nueva oportunidad! Senior Backend Engineer (.NET) | Madrid

Desde Experis buscamos un/a Senior Backend Engineer especializado/a en tecnologías .NET para incorporarse al nuevo Hub Tecnológico para una multinacional líder en servicios profesionales y consultoría especializada en el sector inmobiliario.

La compañía está impulsando una importante transformación tecnológica global, creando plataformas modernas y escalables para sus productos y servicios internacionales. Es una oportunidad para formar parte de un entorno que combina la agilidad de un equipo en crecimiento con el alcance y los retos tecnológicos de una gran multinacional.

¿Qué harás?

• Diseñar, desarrollar y mantener soluciones backend escalables, seguras y de alto rendimiento con C#, .NET y ASP.NET Core.
• Trabajar con arquitecturas de microservicios y APIs REST/GraphQL.
• Participar en decisiones de arquitectura, revisiones de código y definición de buenas prácticas de ingeniería.
• Colaborar con equipos internacionales de Producto, DevOps, QA, Data y Arquitectura.
• Impulsar la calidad técnica, la optimización de sistemas y la modernización de plataformas globales.
• Aportar liderazgo técnico y mentoring, acompañando a perfiles más junior y asumiendo responsabilidad sobre sistemas en producción.

¿Qué buscamos?

• Experiencia sólida en .NET, C# y ASP.NET Core.
• Conocimientos de microservicios, APIs y bases de datos SQL/NoSQL.
• Experiencia con Cloud, CI/CD, Docker y Kubernetes.
• Buenas prácticas de desarrollo seguro, testing y optimización de rendimiento.
• Mentalidad hands-on, autonomía y capacidad para influir en las decisiones técnicas.

Se valorará especialmente la experiencia con arquitecturas cloud-native, event-driven, DDD y equipos internacionales.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada17 oct.

. Java TSQL REST Agile Spring Microservices Kafka

¿Te interesa construir sistemas backend fiables y escalables en un entorno dinámico, con sistemas distribuidos y arquitecturas orientadas a eventos? Buscamos un/a Senior Backend Engineer para el equipo que diseña y opera los servicios backend centrales de la plataforma de post-trading (compensación y liquidación) de una gran infraestructura de mercados financieros: filial española de un grupo suizo presente en más de 30 países, referente en solvencia y estabilidad desde 1831.

El proyecto

Formarás parte de un equipo ágil y colaborativo responsable de diseñar y operar los servicios backend críticos del negocio. El objetivo es construir y mantener sistemas robustos, escalables y mantenibles. Trabajarás con ingenieros de software, arquitectos y equipos de producto para diseñar, mantener y entregar soluciones backend de alta calidad.

Qué harás

• Diseñar, desarrollar y mantener servicios backend y APIs REST con Java, Spring y Spring Boot.
• Construir y operar servicios orientados a eventos con Apache Kafka.
• Desarrollar y mantener aplicaciones sobre servidores de aplicaciones Java como WildFly.
• Colaborar con ingenieros y arquitectos en el diseño del sistema, la arquitectura y las mejoras técnicas.
• Garantizar la fiabilidad, la escalabilidad y el rendimiento de los sistemas en producción.

Qué buscamos

Imprescindible

• Mucha experiencia (+7 años) en desarrollo backend con Java y buenos principios de diseño backend moderno.
• Experiencia con Spring y Spring Boot para construir microservicios.
• Experiencia con Kafka u otras plataformas de mensajería y streaming de eventos.
• Experiencia diseñando APIs RESTful y trabajando con bases de datos SQL.
• Español e inglés a nivel alto, hablado y escrito.

Valorable

• WildFly / JBoss.
• Experiencia en mercados financieros, post-trading o sistemas críticos.

Qué ofrecemos

• Retribución acorde a un perfil senior con este nivel técnico. Te damos el rango en la primera llamada.
• Contrato indefinido
• Modelo híbrido: [3 días a la semana en oficina en Madrid].
• Un grupo internacional estable, con cultura de aprendizaje y feedback continuo y un amplio plan de formación.
• Metodologías ágiles, con equipos que resuelven los problemas juntos.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada10 oct.

Teletrabajo . .Net C# Azure Docker Cloud Coumputing Kubernetes Microservices AWS DevOps RabbitMQ Fintech Kafka

Join our expanding engineering team! We're actively recruiting a Senior Backend Engineer to help scale M-KOPA Mobility, our fast-growing e-mobility business. This is an initial 12-month Fixed Term Contract, with the potential to extend or transition into a permanent role. Build the event-driven microservices that power clean, affordable transport for riders and entrepreneurs across Africa.

The Impact – Africa's transport sector is massive, underserved, and at an inflection point, and the transition to electric is accelerating, led by East Africa. Your code will directly power the technology behind Kenya's leading e-mobility financing platform. We've already financed over 11,000 electric motorbikes, helping riders save more than $3 a day and cutting air pollution by 90%. It's your chance to build tech for a business that's literally transforming lives across an entire continent 🌍

The Opportunity

🎯 Mission-driven engineering: Every service you build helps put clean transport within reach of riders who'd otherwise be locked out of ownership

🏆 Global recognition: Join a company named by the Financial Times as one of Africa's fastest-growing companies for 5 consecutive years running (2022–2026)

🚀 Scale challenges: Build backend systems for a business growing at 3x year-on-year, with over 11,000 e-motorbikes financed and demand climbing

🌱 Real climate impact: Electric is simply better for drivers, cities, and the planet — our e-motorbikes cut air pollution by 90% versus petrol equivalents

What You'll Do

At M-KOPA, you'll build sophisticated event-driven microservices with real-world impact. Our engineering teams own their solutions end-to-end – from architecture decisions to production monitoring. Join us in combining cutting-edge .NET development with purpose-driven engineering that makes digital and financial inclusion possible across Africa.

Technical Environment 💻

• Languages & frameworks: C#/.NET
• Cloud: We work in Azure, and welcome experience across AWS or GCP
• Architecture: Event-driven systems and microservice development – we use Service Bus, and welcome experience with similar messaging technologies such as Kafka or RabbitMQ
• Infrastructure: Kubernetes, Docker
• Observability: Prometheus, Grafana
• Engineering culture: DevOps, infrastructure as code, automated testing across all environments including production, continuous delivery
• AI tooling: We use AI coding tools including Claude Code as part of our engineering workflow
  
  

Our Engineering Approach 🚀

As an engineer, you will work as a collaborator. More senior members will coach and contribute, placing an emphasis on:

• High quality output
• Observability and monitoring
• Automated testing in all environments, including production
• Infrastructure as code and DevOps practices
  
  

What You Need

We expect you to be comfortable working as part of a team which owns the entire software stack, including supporting infrastructure, throughout the entire software lifecycle, from inception through production to decommissioning under a DevOps culture. You'll value the constraints that continuous delivery places upon engineering processes and embrace testing and observability as first-order concerns in development.

Required Experience:

• Strong grasp of C# .NET development
• Experience with event-driven systems – Service Bus or similar messaging technologies such as Kafka or RabbitMQ
• Microservices architecture experience
• Experience with Azure, or other major cloud providers such as AWS or GCP
• Familiarity with containerisation and orchestration tools (Kubernetes, Docker)
• Experience with observability tools such as Prometheus and Grafana
• Testing and deployment expertise
• DevOps culture mindset
• Experience working with AI coding tools, ideally Claude Code or similar
  
  

Location & Benefits

• Initial 12-month Fixed Term Contract, with potential to extend or transition into a permanent role
• Fully remote role within UTC -1 to UTC +3 time zones
• Work with diverse teams across UK, Europe, and Africa
• Professional development programs and coaching partnerships
• Family-friendly policies and flexible working arrangements
• Well-being support and career growth opportunities
  
  

Our Mission 🌍 We create financial inclusion for the traditionally excluded through a fair, flexible, customer-centric financing model, with M-KOPA Mobility extending that same model to clean transport. We strive to drive greater inclusion of women, youth, and low-income communities.

Our Impact 💚

• Connected 📱: 6 million smartphone customers, 2.5 million first-time smartphone users
• Prosperous 💰: 70% of customers use their M-KOPA product for income generation, with 35,000+ livelihoods created for agents
• Green 🌱: 11,000+ e-motorbikes financed, growing 3x year-on-year, cutting air pollution by 90% and helping riders save more than $3 a day
  
  

Ready to build C# .NET solutions that put clean, affordable transport within reach of Every Day Earners, while advancing your career in modern backend engineering?

At M-KOPA, we empower our people to own their careers through diverse development programs, coaching partnerships, and on-the-job training. We support individual journeys with family-friendly policies, prioritise well-being, and embrace flexibility.

Apply now to join our mission of transforming lives across Africa through technology.

Why M-KOPA?

At M-KOPA, we empower our people to own their careers through diverse development programs, coaching partnerships, and on-the-job training. We support individual journeys with family-friendly policies, prioritize well-being, and embrace flexibility.

Join us in shaping the future of M-KOPA as we grow together. Explore more at m-kopa.com.

Recognized four times by the Financial Times as one Africa's fastest growing companies (2022, 2023, 2024, 2025 and 2026), named on CNBC's World’s Top Fintech Companies 2025 & 2026 and by TIME100 Most influential companies in the world 2023 and 2024 , we've served over 10 million customers, unlocking $2 billion in cumulative credit for the everyday earners across Africa, in addition to over 10,000 e-bikes financed in Kenya.

Important Notice

M-KOPA is an equal opportunity and affirmative action employer committed to assembling a diverse, broadly trained staff. Women, minorities, and people with disabilities are strongly encouraged to apply.

M-KOPA explicitly prohibits the use of Forced or Child Labour and respects the rights of its employees to agree to terms and conditions of employment voluntarily, without coercion, and freely terminate their employment on appropriate notice. M-KOPA shall ensure that its Employees are of legal working age and shall comply with local laws for youth employment or student work, such as internships or apprenticeships.

M-KOPA does not collect/charge any money as a pre-employment or post-employment requirement. This means that we never ask for ‘recruitment fees’, ‘processing fees’, ‘interview fees’, or any other kind of money in exchange for offer letters or interviews at any time during the hiring process.

Applications for this position will be reviewed on a rolling basis. Shortlisting and interviews will take place at any stage during the recruitment process. We reserve the right to close the vacancy early if a suitable candidate is selected before the advertised closing date.

If your application is successful M-KOPA undertakes pre-employment background checks as part of its recruitment process, these include; criminal records, identification verification, academic qualifications, employment dates and employer references.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada9 oct.

. TSQL Docker Cloud Coumputing Kubernetes Android AWS iOS PostgreSQL RabbitMQ Redis Kafka Office

Hey there!

We’re Fever, the world’s leading tech platform for culture and live entertainment.

Our mission? To democratize access to culture and entertainment. With our proprietary cutting-edge technology and data-driven approach, we’re revolutionizing the way people engage with live entertainment.

Every month, our platform inspires over 300 million people in +55 countries (and counting) to discover unforgettable experiences while also empowering event creators with our data and technology, helping them scale, innovate, and enhance their events to reach new audiences.

Our results? We’ve teamed up with major industry leaders like Netflix, F.C. Barcelona, and Primavera Sound, presented international award-winning experiences, and are backed by several leading global investors! Impressive, right?

To achieve our mission, we are looking for bar-raisers with a hands-on mindset who are eager to help shape the future of entertainment!

Ready to be part of the experience?

Now, let’s discuss this role and what you will do to help achieve Fever’s mission.

Behind the user-friendly iOS and Android apps and webpage that work across the world is the engineering team. We are in charge of creating, developing, improving, and maintaining all Fever services so that more people can have an amazing experience.

About The Role

Location: Spain - 100% Home office friendly

What are we looking for:

We are looking for a Senior Software Engineer to join the Engineering team with outstanding software development talent proven by great work results/experience. Somebody who cares about code quality and not just getting things done, but getting things done right.

If you're smart, have great energy, can't think about a system without a CI/CD pipeline, and you want to thrive in a fast-paced environment, we are in sync.

What would you do at Fever?

During your first month at Fever (Onboarding period):

• You’ll join a structured onboarding program designed to help you ramp up smoothly. During this period, you will:
• Meet your buddy and team, and get to know Fever’s culture and ways of working.
• Set up your local environment and become familiar with our Python-based stack, CI/CD pipelines, and cloud infrastructure.
• Learn about our architecture and observability tools while contributing small improvements and fixes.
• Have your first code running in production and a clear understanding of our delivery flow and processes.
• By the end of the onboarding, you’ll be ready to join your long-term squad and start contributing to larger initiatives.
  
  

After 3 months at Fever:

• You’ll be confidently collaborating and delivering at full speed. You will:
• Design and implement end-to-end features within your squad.
• Participate in architectural discussions and propose improvements across our services and APIs.
• Work with event-driven systems and focus on performance, reliability, and scalability.
• Collaborate closely with Product, Data, and other Engineering teams to enhance our platform and developer experience.
  
  

By your 6th month at Fever:

• You’ll be fully established as a key contributor in your team. You will:
• Take ownership of core components and help evolve their architecture.
• Lead by example through code reviews, design sessions, and mentoring.
• Contribute to best practices in areas like scalability, observability, and system design.
• Drive continuous improvement and have a visible impact on how we build high-performing services at scale.
• Become an expert in your domain, using business context and technical excellence to drive strategic initiatives forward
  
  

About You

Must have skills:

• Strong knowledge of best practices, testing, and design patterns
• You are proficient in business English
• You know how to deliver code from development to production
• Experience with RESTful APIs (implementation and consumption)
• Knowledge of relational databases and SQL
• Experience with event streaming platforms such as Kafka or RabbitMQ
• Handling services with high concurrencies and high volume requests.
  
  

We use these technologies, so it would be a plus if you have experience in:

• Django/Flask
• PostgreSQL and Redis
• AWS, Docker, and Kubernetes
  
  

Benefits & Perks

• 23 days of vacation plus half a day on your birthday
• Private medical insurance sponsored by the company
• 40% discount on Fever Marketplace
• Flexibility to work from home
• English & Spanish conversational classes
• Wellhub (former Gympass) membership
• Possibility to receive part of your salary in advance with Payflow
• Flexible remuneration with Cobee
• Budget for engineering events and trainings
• Young and international environment
• Attractive compensation package consisting of base salary and the potential to earn a significant bonus for top performance.
• Base Salary: 50K - 75K EUR
• Total Compensation: 67K - 90K EUR (Including Base, Variable, and Stock Options)
  

About The Process

Fever aims to provide the best and fastest possible experience to our candidates. This is how it would look like:

• Talent Interview - 1h: An intro to Fever, our culture and a conversation about your background and experience.
• Technical Interview - 2h: A deep dive into your technical expertise through a system design discussion and a short coding exercise, giving you the chance to walk us through your reasoning and problem-solving approach — and ask us anything about your day-to-day at Fever.
• Manager Interview - 1.5h: A conversation about how you communicate context and trade-offs, own outcomes, quantify impact, and think about reliability, scale, and system design decisions.
  
  

Thank you for considering joining Fever. We cannot wait to learn more about you!

If you want to learn more about us: Fever's Blog | Tech.Eu |TechCrunch

Fever is committed to creating an inclusive and diverse workspace where everyone's background and ideas count. Our main goal is to find the best possible talent regardless of place of birth, racial or ethnic origin, gender, gender identity, religion, opinion, sexual orientation, disability, pregnancy, marital status, age or caring responsibilities. We encourage everyone to apply!

If you require any kind of accommodation during the selection process please contact our Talent team so we can help you by providing a welcoming and seamless journey.

If you want to know more about how Fever processes your personal data, click here Fever - Candidate Privacy Notice

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada8 oct.

Teletrabajo . Agile Scrum Scala QA Spark

Role Description

We are looking for the very Top Talent…and we would be delighted if you were to join our team!

More in details, UST is a multinational company based in North America, certified as a Top Employer company with over 35.000 employees all over the world and presence in more than 30 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What are we looking for?

We are looking for a Backend Developer Analyst with solid experience in Apache Spark and Scala development to join the SIMA Squad, working in an Agile environment. The selected candidate will participate in the development and maintenance of data processing solutions related to RAS Metrics, contributing to the full software delivery lifecycle from analysis and development to testing and production validation.

The role requires close collaboration with business and technical teams to understand requirements, implement scalable data solutions, ensure code quality, and support deployments across different environments.

Mandatory Skills

• Experiencia en desarrollo Apache Spark/ Scala de al menos 3 años
• Control-M
• PL/SQL
  
  

Main Responsibilities

• Analyze and implement user stories following Agile/Scrum methodologies.
• Design, develop, and maintain backend solutions using Apache Spark and Scala.
• Develop and optimize ETL processes and data transformation pipelines.
• Perform unit, integration, and end-to-end testing to ensure solution quality.
• Troubleshoot and resolve defects identified during development, testing, and production phases.
• Support User Acceptance Testing (UAT) activities and coordinate issue resolution.
• Participate in production validation activities and post-deployment support.
• Monitor and manage scheduled processes using Control-M.
• Develop and maintain PL/SQL scripts, queries, and database objects.
• Ensure compliance with coding standards, performance requirements, and best practices.
• Collaborate closely with Product Owners, Business Analysts, QA teams, and other squad members to deliver high-quality solutions.
  
  

What can we offer?

• 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
• Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).
• `Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…)
• Free access to several training platforms
• Professional stability and career plans
• UST also, compensates referrals from which you could benefit when you refer professionals.
• The option to pick between 12 or 14 payments along the year.
• Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)
• UST Club Platform discounts and gym Access discounts
  
  

If you would like to know more, don’t hesitate to apply and we’ll get in touch to fill you in detail. We are waiting for you!

In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.

Skills

Agile, Apache Spark, Backend Development, Control-M, ETL, Integration Testing, PL/SQL, User Acceptance Testing, Unit Testing, Scrum, Scala