Kotlin Fullstack Software Engineer

Your new company

You will be part of one of the best Tech Hubs in Spain for a big electronics retail company.

The project will be part of the Payment basket platform.

They work in a collaborative, remote‑friendly environment where technical expertise directly impacts customer experience and business growth.

Your new role

• Develop value-adding features for our customers and leverage your technical expertise to create the best possible solutions following the Clean Code principles.
• Embrace DevOps, taking responsibility for your team’s services from requirement analysis to operation.
• Make architectural decisions with your team to ensure high performance, robustness, and maintainability of the application, especially during the transition from on-premise to the cloud.
• Share your knowledge with your team colleagues, assist them, and contribute to the growth of the entire team.
• Understand recurring support requests and implement automated solutions in the code.
• Foster an open, honest, and constructive discussion culture within the team through your confident yet reflective manner.

What will you need to fit in it?

• 5+ years of professional experience working with Kotlin
• Knowledge in front-end technologies such as HTML5, CSS3, JavaScript/TypeScript, and frameworks like React
• Strong knowledge of backend technologies and frameworks like Node.js, Express, Spring Boot
• You have extensive experience in API design and know how to integrate microservices in a fault-tolerant and RESTful manner.
• You have experience working with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
• Knowledge of version control systems like Git.
• Proficiency in cloud platforms, preferrably Google Cloud
• Experience with continuous integration and continuous deployment (CI/CD) pipelines.
• Understanding of payment gateways and integration (e.g., Stripe, PayPal).
• Familiarity with performance optimization techniques for web applications.
• In addition to solid knowledge of object-oriented programming languages (preferably Java), you have practical experience with GitOps (Terraform, Helm, Flux) and Kubernetes.
• You are familiar with operating a business-critical service and know how to monitor it using tools like Grafana, Prometheus, and Kibana.
• Understanding of microservices architecture and implementation.
• You are knowledgeable about common design patterns and testing strategies, and you do not see quality and speed as contradictory.
• Knowledge of security best practices for web applications.
• Ability to adapt to rapidly changing technologies and methodologies.
• Excellent English language skills, both written and spoke

What will you get in return

• Permanent direct contract with the end company
• Gross salary according to your experience
• Flexible working hours
• 4 days of remote work per week
• Offices in Barceloneta
• 27 days of vacation per year
• Training budget
• Career development plan