Java Senior Software Engineer Checkout (Madrid)

Job description

Java Senior Software Engineer - Checkout (Hybrid)

As you contemplate your future, you might be asking yourself, what's the next step?

Start your journey with us! We are seeking an experienced Java Senior Software Engineer to join our Checkout Team in Barcelona and Madrid (hybrid) to deliver the best payment journey to our customers and create and design new financial products for our customers.

• Work closely with product owners, data scientists and UX designers to integrate and offer customers the most innovative payment methods; create new innovative payment plans and products; design and develop a super convenient payment experience; create an intelligence anti‑fraud engine based on big data; stay ahead of the payments regulations and optimise our collection success.
  
  
• Work with cutting‑edge technologies including Java 11 and 17, Big Data (Kafka, Cassandra, BigTable, Redis, Neo4j), machine learning and Datamesh in a continuous delivery and cloud‑based environment (Docker, Kubernetes and GCP).
  
  
• Create distributed, scalable microservices platforms that are deployed daily, with high quality, clean code, SOLID principles, design patterns and TDD.
  
  
• Promote the use of microservices platforms, clean code and SOLID principles and TDD to the rest of the team.
  
  
• Be independent when working with the modules on your area of expertise, in any phase of the SDLC.
  
  
• Design and develop advanced systems and innovative solutions that help us solve big problems related to finance, payments or fraud.
  
  
• Share solutions with both technical and non‑technical audiences.
  
  
• Code the solutions with the highest quality through good design, attention to detail and test quality.
  
  
• Be a referral of best practices within the team.
  
  
• Work in a fully agile organisation, using Kanban practices to deliver business value continuously.
  
  
• Actively participate in team ceremonies and events, as well as the product definition and ideation processes, as part of a high‑performing cross‑functional team working with other top engineers, product managers, architects and UX designers to design, build, operate and evolve the Payments Domain microservices platform.
  
  

• Deep understanding of software engineering concepts such as OOP, functional programming, concurrency, data structures, design and architecture patterns, databases, APIs etc.
  
  
• Experience working with the entire software development cycle, including deploying to production and testing (both unit and integration), as well as Cloud and Continuous Delivery environments.
  
  
• Strong data‑driven capabilities, analytical skills, design pattern skills and creativity that allow you to solve complex business and customer problems.
  
  
• Ambition to be the best and provide resilient, high‑performing, well‑dimensioned solutions to complex problems.
  
  
• Strong focus on quality, and a technical excellence mindset.
  
  
• Excellent communication skills and an open mind to reach agreements for the benefit of the team and stakeholders.
  
  
• Ability to visually represent your solutions in standard diagrams that can be shared with both technical and non‑technical audiences.
  
  
• Strong organisational skills; ability to organise, prioritise and delegate tasks to overcome deadlines in an uncertain environment.
  
  
• Fluent English level.
  
  
• A strong mindset for continuous learning and improvement, growth and innovation.
  
  
• A team player attitude with a focus on knowledge sharing within a dynamic team.
  
  

• Experience with Applied AI Tools: Demonstrated comfort using practical AI tools such as GitHub Copilot, ChatGPT, or other AI‑powered coding assistants.
  
  
• Experimentation Mindset: Curiosity and eagerness to explore, experiment with, and integrate emerging AI‑driven solutions into software development workflows.
  
  
• AI‑Enhanced Problem Solving: Ability to effectively leverage AI tools to debug code, streamline development processes, and enhance productivity.
  
  
• Adaptability and Learning Agility: Enthusiastic about continuously learning and quickly adapting to new AI features and capabilities.
  
  
• Collaboration with AI: Experience or interest in collaborating closely with AI tools as pair programmers to complement traditional software development practices.
  
  

• Prime Plus membership, competitive salary and benefits package, including versatile benefits, performance‑based bonuses, birthday day off, discounts and partnerships, relocation support and the possibility of choosing your equipment and, even better, keeping it for free after 3 years.
  
  
• Continuous learning to fuel your growth and explore new horizons – free Coursera access, soft skills workshops, tech training, leadership development and more.
  
  
• Great onboarding program and internal mobility opportunities to pursue horizontal career changes and promotions.
  
  
• Hybrid home‑office model focused on outcome, not time‑in‑seat; flexible work‑life balance.
  
  

We are an equal opportunity employer and value diversity at our company.

We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status.

Our people are the key to our success.

Each one of them is unique in their own way and the respect for their uniqueness is and will always be a passion and motivation.

Apply now and help our diverse, inclusive, and passionate team shape the future of travel.

Required Skill Profession

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