Ofertas de empleo para GraphQL

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada13 sept.

React Javascript C# Java Python CSS Azure HTML Angular Docker Cloud Coumputing GraphQL Git TypeScript AWS DevOps LESS

About Us

At KingMakers, we're not here to follow the industry; we're here to shape it. We're redefining sports and gaming entertainment across Africa, creating platforms that bring millions of users closer to the games and experiences they love.

Since 2018, we've grown rapidly to become one of the key players in the region, recognized for redefining the industry and setting the stage for what's next.

Our mission is bold: we aim to inspire, empower, and create meaningful value for the people and communities we serve. Collaboration and innovation are at the heart of our culture, driving every interaction to be memorable, impactful, and forward-looking.

We think big, move fast, and challenge convention. From revolutionizing user experiences to solving some of the most complex engineering challenges, we set the gold standard. If you're ready to make your mark, there's no better time to join KingMakers.

Role Overview:

As a Front-End Software Engineer, you will be joining a team focused on ensuring that our gaming products are highly resilient, extremely low latency and scalable to massive volume, all while providing a first-class customer experience. With a great understanding of the modern architectural and engineering practices that underpin highly successful distributed transactional solutions, your team will work hand-in-glove with the Product Managers to design, build, deliver and run our gaming platforms and products. 

Sharing your team's passion for automation and producing thoroughly tested and high-quality services and you will leave no stone unturned to help drive the company's success. 

Part of our rapidly growing Tech team, you will have the opportunity to play a crucial role in taking the KingMakers products to the next level.

What you will be doing:   

• Design it: ensure that everything is designed not just for now, but for the growth of years to come  
• Build it: deliver great solutions that are proven to meet the needs of the Product Managers and Product Designers as well as your colleagues in Support and Operations  
• Test it: be accountable for your own testing and for the overall quality of your output, you'll make sure testing happens fast, frequently and effectively  
• Run it: check that everything is working as expected and go hunting for problems to solve, to constantly improve the solution 
• Document Everything: make sure we have top class and up to date technical and use case documentation 
• Mentor and coach: support and help onboard and train the less experienced members of the team 
• Collaborate: engage with other teams and users across the company to identify ways to improve and build upon the capabilities of the Platform  

What you need for this role:  

• Extensive experience in web development, using  HTML, CSS, JavaScript and TypeScript
• Production experience with any of the modern web frameworks, such as React (Next.JS), Angular or Vue
• Comfortable working with JS tools and ecosystem, like NodeJS, NPM or Yarn, webpack, Rollup, Grunt, ESLint
• Strong fundamental knowledge in Front End development, understanding how browsers work and performance best practices in modern web apps
• Experience with headless content management systems like Strapi or Umbraco is a plus
• Proficient in Git (we use GitHub and Azure DevOps)
• Good understanding of CI/CD principles
• Experience working with data fetching via RESTful APIs or GraphQL
• Experience writing tests (unit, integration, E2E) and documentation, using tools like Cypress or Storybook
• Experience with Docker is a plus
• Experience with backend languages (C#, Java, Python) is a plus
• Experience with cloud services like Azure, AWS or GCP is a plus
• A passion for detail and problem solving, with excellent verbal and written communication skills 
• Hyper-growth start-up experience is a strong plus

How you do it - Expectations for fulfilling your role:  

At KingMakers, culture isn't just a set of words on a wall, it's how we show up, how we work, and how we grow. That's why we created Our CROWNS: six bold, clear and actionable values that guide how we make decisions, collaborate, and raise the bar for ourselves and each other.

👑 Customer First

We build with and for our customers. Whether internal or external, we care deeply about what drives them and always strive to deliver real, meaningful value.

📈 Raise the Bar

We take initiative, take ownership, and never settle. We're not here to show off, we're here to make an impact, raise standards, and push for better every time.

💬 Operate with Candor

We build trust through openness and honesty. We speak clearly, listen actively, and make space for others to be part of the conversation. Truth with kindness, always.

🤝 We Build Together

We collaborate across teams, support one another, and leave egos aside. We succeed as a team, lifting each other up and sharing the load.

⚡ No Hesitation, Never Reckless

We move boldly and responsibly. We take smart risks, speak up, and try new things, with the courage to own the outcome and the clarity to avoid chaos.

🚀 Speed & Iteration

We act fast, learn fast, and improve fast. We cut through the noise, take action, and adapt quickly. Progress beats perfection.

At KingMakers, your work doesn't just power platforms, it shapes a movement. Here's what you can expect:

• Global Impact: Build systems that redefine how millions engage with sports and entertainment
• International Collaboration: Work with top talent from across the world in a dynamic and inclusive culture
• Personal Growth: Take on exciting challenges that help you level up as an engineer and leader
• Innovation First: Join a team that celebrates creativity, diversity of thought, and continuous learning

What We Offer

At KingMakers, we believe great talent deserves great rewards. That's why we offer competitive compensation packages designed to reflect your expertise and impact.

Our benefits are tailored to each location, ensuring they align with what matters most to our people. Whether it's health coverage, hybrid work and perks, we strive to provide what you need to thrive - wherever you are.

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada12 sept.

Javascript API Node.js MySQL MongoDB TSQL Kubernetes GraphQL Git REST TDD TypeScript RabbitMQ Redis Fintech ECMAScript Microservices

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we´ve already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don´t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

We are looking for a skilled Senior Node.js Developer to join one of our locations.

Requirements:
• Strong knowledge of JavaScript and the ECMAScript 6 standards
• 3+ years of commercial experience with Node.js and Nest.js
• 5+ years of commercial experience in web development
• Commercial experience of working with high loaded SQL or NO SQL databases
• Commercial experience of implementing the REST, GraphQL and WebSockets
• Understanding of the TDD principles and experience of writing tests
• Understanding of microservice architecture principles
• Experience of GIT version control system
• Experience with RabbitMQ
• Experience with Redis
• Experience with databases MongoDB, MySQL
• At least Intermediate lvl of English

Will be a plus:
• 2+ years of hands-on experience developing over CI/CD/Micro Services architecture/Containers
• Experience with Kubernetes
• Experience with Nats
• Experience with TypeScript

Duties and opportunities:
• In-house platform development
• 3rd party API integrations
• Actively participate in developing new features from scratch

Bold moves start here. Make yours. Apply today!

By submitting your application, you agree to our Privacy Policy.

• Flexibilidad horariaSí
• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada10 sept.

React Javascript CSS GraphQL Ruby Git TDD TypeScript UX/UI Ruby on Rails

En Rankia, creemos que una buena salud financiera contribuye a mejorar el bienestar físico y mental de las personas. Desde nuestros inicios en 2003, ayudamos a las personas a alcanzar la mejor salud financiera en cada etapa de sus vidas. Desde el momento en que comienzan a trabajar y necesitan una cuenta nómina, pasando por el ahorro e inversión, la compra de una vivienda con una hipoteca adecuada, hasta la planificación de la jubilación con planes de pensiones sólidos.

Nuestro compromiso con la comunidad, proporcionando una información financiera transparente, objetiva, independiente y accesible, nos ha llevado a ser el portal de referencia del sector financiero.

Para esto contamos con una plataforma multicanal que incluye nuestro sitio web, eventos y contenido audiovisual, elementos que, impulsados por la pasión y experiencia de nuestro equipo, nos han llevado a expandirnos a 20 países y lanzar Rankia Pro, un portal exclusivo para profesionales del mundo inversor.

El equipo

Formarás parte del equipo de Product & Tech de Rankia, reportando al Engineering Manager pero con la autonomía para liderar tu día a día, generar impacto y dar forma a tu trabajo.

Tu misión

¡Tenemos un plan para escalar Rankia! Buscamos personas que vean la Inteligencia Artificial como un catalizador transformador, no solo como una herramienta auxiliar.

Como Frontend Developer, tendrás un rol clave en la creación de interfaces intuitivas y escalables. Trabajarás estrechamente con los equipos de diseño y backend, y también con nuestras iniciativas IA-first, rediseñando procesos y flujos de trabajo que potencien la productividad y la experiencia de usuario.

¿Qué necesitas para que hagamos match?

Buscamos a Alguien Con Experiencia Técnica Sólida, Pero Sobre Todo Con Mentalidad De Arquitecto/orquestador, Capaz De Imaginar Cómo Debe Ser El Desarrollo En Los Próximos Años

• Dominio en la construcción y mantenimiento de componentes React, incluyendo la gestión de estados.
• Experiencia en programación con herramientas de Inteligencia Artificial, como CursorAI o similares, enfocada en la optimización de procesos y mejora de la productividad.
• Conocimientos sólidos de TypeScript.
• Dominio de CSS, Tailwind CSS y JavaScript.
• Experiencia con Git.
• Nivel medio de inglés.
  
  

• Experiencia con frameworks de testing como Jest o con Cypress (TDD).
• Experiencia con APIs RESTful y GraphQL.
• Experiencia con Ruby on Rails.
  
  

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada7 sept.

Teletrabajo Python TSQL Azure Docker Cloud Coumputing Kubernetes GraphQL Scala REST AWS

Ubicación:

Madrid, ES, 28046

Fecha de publicación: 9 ago 2025

¿Te defines por tu talento y tu visión?

Entonces, tú también puedes marcar la diferencia. Únete a un entorno profesional que contribuye a la transformación de empresas y sociedad. Alcanza tus metas, supera tus límites y únete a una firma que va más allá de los servicios profesionales.

Porque marcar la diferencia no es solo algo que decimos. Es lo que hacemos.

Desarrolla tu carrera con nosotros.

Desde el equipo de LIGHTHOUSE, nuestro centro de excelencia de Data & Analytics, Inteligencia Artificial & Tecnologías Emergentes, ayudamos a nuestros clientes a encontrar la eficiencia y el alto rendimiento en todas sus funciones TIC, tanto internas como externas hacia sus unidades de negocio y proveedores: buscando la máxima eficiencia en la operación de sus servicios y ajustando sus costes; así como incrementando su trascendencia en la cuenta de resultados y facilitando la innovación.

Nos encontramos en proceso de crecimiento y estamos buscando un/a Data Engineer Senior para diseñar, desarrollar e implementar soluciones de datos en entornos cloud, utilizando tecnologías como Snowflake, Databricks, Microsoft Fabric.

Será responsable de construir y optimizar pipelines de datos escalables, garantizando la calidad y gobernanza, definir arquitectura de datos, modelado, así como en la integración de datos desde múltiples fuentes.

¿Que necesitas saber?

• FormaciónenTelecomunicaciones, Informática o a fines
• Más de 3 años de experiencia
• Imprescidible programación: Python, SQL, Scala.
• Experiencia en plataformas de datos: Snowflake, Databricks, Microsoft Fabric...
• Experiencia en construcción de pipelines, modelado de datos y orquestación de los mismos.
• Conocimiento de DataOps y CI/CD para la automatización de despliegues en pipelines de datos.
• Soft skills: capacidad de interlocución, liderazgo y proactvidad
• Certificaciones de desarrollos en nube publica (Azure, AWS, GCP)
  
  

• Formación de postgrado en IA
• Certificaciones en el ámbito de la IA
• Experiencia en Kubernetes y Docker para despliegue de entornos de datos escalables.
• Familiaridad con GraphQL y APIs REST para consumo de datos.
  
  

• Un gran ambiente de trabajo, tanto dentro como fuera de la oficina
• Oportunidades internacionales y red de contactos global
• Formacióncontinuay plan de carrera a tu medida
• Salario competitivo y plan de remuneración flexible
• 31 días laborables de vacaciones
• La tarde de tu cumpleaños libre
• Flexibilidad y posibilidad de teletrabajo
• Acceso a Kteam, nuestra plataforma de bienestar, servicios, solidaridad y promociones
• Los beneficios pueden variar para programas de becas y/o prácticas
  
  

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada5 sept.

Javascript API Node.js MySQL MongoDB TSQL Kubernetes GraphQL Git REST TDD TypeScript RabbitMQ Redis Fintech ECMAScript Office Microservices

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we´ve already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don´t follow formats. We shape them. We build what works, launch it fast, and make sure it hits.

!Please note that this role is office based for Spain.

!If you need to be relocated, we take care of the process.

Requirements:
• Strong knowledge of JavaScript and the ECMAScript 6 standards;
• 5+ years of commercial experience with Node.js and Nest.js;
• 5+ years of commercial experience in web development;
• Commercial experience of working with high loaded SQL or NO SQL databases;
• Commercial experience of implementing the REST, GraphQL and WebSockets;
• Understanding of the TDD principles and experience of writing tests;
• Understanding of microservice architecture principles;
• Experience of GIT version control system;
• Experience with RabbitMQ;
• Experience with Redis;
• Experience with databases MongoDB, MySQL;
• At least Intermediate lvl of English.

Will be a plus
• 2+ years of hands-on experience developing over CI/CD/Micro Services architecture/Containers;
• Experience with Kubernetes;
• Experience with Nats;
• Experience with TypeScript.

Duties and opportunities
• In-house platform development;
• 3rd party API integrations;
• Actively participate in developing new features from scratch.

We offer excellent benefits, including but not limited to:
- Learning and development opportunities and interesting, challenging tasks.
- Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members)
- Opportunity to develop language skills, with partial compensation for the cost of English.
- Private medical coverage, including inpatient, outpatient, dental care, annual check-ups, and maternity support.
- Competitive remuneration level with annual review.

Bold moves start here. Make yours. Apply today!

• Flexibilidad horariaSí
• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada24 ago.

Teletrabajo React Javascript Node.js CSS HTML GraphQL SEO Office

Company Description

Nexthink is the leader in digital employee experience management software. The company provides IT leaders with unprecedented insight allowing them to see, diagnose and fix issues at scale impacting employees anywhere, with any application or network, before employees notice the issue. As the first solution to allow IT to progress from reactive problem solving to proactive optimization, Nexthink enables its more than 1,300 customers to provide better digital experiences to more than 18 million employees. Dual headquartered in Lausanne, Switzerland and Boston, Massachusetts, Nexthink has 9 offices worldwide.

Job Description

We are seeking a skilled Full Stack Developer to join our Marketing Web Engineering team. In this role, you will help shape and maintain nexthink.com and related digital properties. Your expertise in React, Next.js, and GraphQL will be crucial in delivering high-quality, scalable, and user-friendly solutions with strong performance, accessibility, and SEO in mind.

Key Responsibilities:

• Collaborate with cross-functional teams (Engineering, Marketing, and Design) to translate business and project requirements into technical solutions.
• Develop and maintain web applications while following and contributing to a design system.
• Design and implement back-end solutions, ensuring robustness and scalability.
• Write clean and efficient code, adhering to coding standards and best practices.
• Perform code reviews and provide constructive feedback to peers.
• Work closely with UX designers to ensure a seamless user experience.
• Troubleshoot, debug, and optimize applications for performance and SEO.
• Stay up to date with industry trends, bringing fresh ideas and innovative solutions to the team.
  
  

• Proven experience as a Full Stack Developer or similar role.
• Strong proficiency in React, Next.js, and GraphQL.
• Experience with back-end technologies such as Node.js, Express, or other similar frameworks.
• Solid understanding of web development fundamentals, including HTML, CSS, and JavaScript.
• Excellent problem-solving and communication skills.
• Ability to work independently and collaboratively in a fast-paced environment.
• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
  
  

• Exposure to platforms such as Hygraph or Vercel
• Familiarity with CI/CD pipelines
• Experience with analytics, A/B testing, or marketing tool integrations
  
  

• 💼 Permanent Contract and a competitive compensation package (Stock Options also included).
• 📍 Amazing centrally located offices near the Bernabeu Stadium.
• 🩺 Private Health Insurance (Sanitas) and daily meal vouchers of 11 EUR will be entirely covered by us.
• 🏡 Hybrid work model balancing office and remote work, with a structured approach for new hires to foster connections and onboarding.
• 🏖️ Flexible Hours and unlimited vacation (employees have unlimited paid time off on top of the 23 days of holidays we offer) plus 3 company-paid volunteer days.
• 🤸 Up to 25 EUR per month for a gym subscription.
• 🛴 Flexible compensation plan for childcare & public transportation.
• 🧑🏫 Reimbursement of up to 50% of the cost of English & Spanish classes.
• 🍉 Fresh fruit, cookies, soft drinks and protein shakes at the offie.
• 🍕 Regular company and team events like Pizza talks, Team Building activities, Christmas parties, hosting Meetups at the office and more!
• 📣 Bonuses for referring successful hires after three months of continuous employment.
• 🚚 We offer a relocation package to people who are coming from another country.
  
  

• Nivel de experiencia---
• Tipo de contratoA tiempo completo
• Publicada11 ago.

TSQL NoSQL TDD Big Data Azure GraphQL RabbitMQ Kafka Spark

Lead data engineers at Thoughtworks develop modern data architecture approaches to meet key business objectives and provide end-to-end data solutions. They might spend a few weeks with a new client on a deep technical review or a complete organizational review, helping them to understand the potential that data brings to solve their most pressing problems. On projects, they will be leading the design of technical solutions, or perhaps overseeing a program inception to build a new product. Alongside hands-on coding, they are leading the team to implement the solution.

Job responsibilities

• You will lead and manage data engineering projects from inception to completion, including goal-setting, scope definition and ensuring on-time delivery with cross team collaboration.
• You will collaborate with stakeholders to understand their strategic objectives and identify opportunities to leverage data and data quality.
• You will design, develop and operate modern data architecture approaches to meet key business objectives and provide end-to-end data solutions.
• You will be responsible to create, design and develop intricate data processing pipelines, addressing clients' most challenging problems.
• You will collaborate with data scientists to design scalable implementations of their models.
• You write clean and iterative code based on TDD and leverage various continuous delivery practices to deploy, support and operate data pipelines.
• You will lead and advise clients on how to use different distributed storage and computing technologies from the plethora of options available.
• You will develop data models by selecting from a variety of modeling techniques and implementing the chosen data model using the appropriate technology stack.
• You will be responsible for data governance, data security and data privacy to support business and compliance requirements.
• You will define the strategy for and incorporate data quality into your day-to-day work.
• We value flexibility and collaboration, and therefore work in a hybrid model.
  
  
  

• You have experience in leading the system design and implementation of technical solutions (e.g., Kafka, GraphQL, RabbitMQ).
• Working with data excites you; You have created Big Data architecture, can build and operate data pipelines, and maintain data storage, all within distributed systems.
• You have built and deployed large-scale data pipelines and data-centric applications using any of the distributed storage platforms and distributed processing platforms in a production setting using Snowflake (must have) , Amazon S3, Azure Data Lake, Spark and/or Flink.
• You have a deep understanding of data modeling and experience with modern data engineering tools and platforms such as Airflow or Databricks.
• You have experience in writing clean, high-quality code using the preferred programming language.
• You have experience with data visualization techniques and can communicate the insights as per the audience.
• You have experience with data-driven approaches and can apply data security and privacy strategy to solve business problems.
• You have experience with different types of databases (i.e.: SQL, NoSQL, data lake, data schemas, etc.).
  
  
  

• You understand the importance of stakeholder management and can easily liaise between clients and other key stakeholders throughout projects, ensuring buy-in and gaining trust along the way.
• You are resilient in ambiguous situations and can adapt your role to approach challenges from multiple perspectives.
• You don’t shy away from risks or conflicts, instead you take them on and skillfully manage them.
• You coach, mentor and motivate others and you aspire to influence teammates to take positive action and accountability for their work.
• You enjoy influencing others and always advocate for technical excellence while being open to change when needed.
• You are a proven leader with a track record of encouraging teammates in their professional development and relationships.
• Cultivating strong partnerships comes naturally to you; You understand the importance of relationship building and how it can bring new opportunities to our business.