Senior Backend Developer

Commit; Barcelona; On-site; EUR 70,000 - 110,000; Full time

Job summary

Commit is seeking a Senior Backend Developer to join our engineering team. You will build high-performance, scalable backend systems using Python, while leveraging Kubernetes for orchestration and AWS for cloud deployment.

You will help design architecture and drive technical strategy across product development. The role requires 7+ years of backend experience, strong knowledge of microservices, and the ability to collaborate with cross-functional teams to deliver reliable, secure software

Qualifications

• 7+ years of professional backend development experience.
• Proficiency in Python (Django experience a bonus).
• Deep knowledge of Kubernetes (K8s) for container orchestration.
• Experience deploying cloud solutions with AWS services (ECS, EKS, Lambda, S3, RDS).
• Strong understanding of microservices architecture and distributed systems.

Responsibilities

• Develop, optimize, and maintain robust backend applications using Python (Django a plus).
• Design and implement scalable microservices architectures to support business needs.
• Leverage AWS services to design, deploy, and operate cloud-based applications.
• Work with Kubernetes to deploy and manage containerized services.
• Ensure backend performance, reliability, and security to meet business requirements.
• Collaborate with cross-functional teams to define system architecture and strategy.
• Identify and troubleshoot complex issues to improve system efficiency.

Skills

Python

Django

Kubernetes

AWS

Microservices

Debugging

Team collaboration

Tools

Docker

AWS

Kubernetes

Job description

We are a leading technology solutions provider delivering innovative, scalable, and secure solutions to businesses across a wide range of industries. Our mission is to help organizations accelerate digital transformation, optimize their technology infrastructure, and create exceptional customer experiences.

As we continue to grow and expand our technology capabilities, we are looking for a Senior Backend Developer to join our engineering team and contribute to building high-performance, reliable, and scalable backend systems.

Key Responsibilities

• Backend Development: Develop, optimize, and maintain robust backend applications using Python (Django is a plus).
• Microservices Architecture: Design and implement scalable, efficient microservices architectures to support business needs.
• Cloud Solutions: Leverage AWS services (e.g., ECS, EKS, Lambda, S3, RDS) to design, develop, and deploy cloud-based applications.
• Kubernetes Management: Work with Kubernetes (K8s) to deploy and manage containerized applications ensuring smooth and efficient operations.
• Performance & Reliability: Ensure backend systems maintain optimal performance, reliability, and security to meet business and customer requirements.
• Collaboration & Strategy: Work closely with cross-functional teams to define system architecture and drive technical strategies for product development.
• Troubleshooting & Optimization: Identify and troubleshoot complex issues, applying solutions to improve system efficiency and reduce downtime.

Requirements

• Experience: 7+ years of professional experience in software development, with a strong focus on backend technologies.
• Technical Skills: Proficiency in Python (Django experience is a bonus).
• Fluency in Ukrainian language
• In-depth understanding of Kubernetes (K8s) for container orchestration and management.
• Experience in developing and deploying cloud solutions using AWS services, including ECS, EKS, Lambda, S3, and RDS.
• Strong background in microservices architecture and distributed systems.
• Database Knowledge: Experience working with both relational and NoSQL databases.
• Problem-Solving: Strong debugging skills and a deep understanding of performance optimization techniques.
• Team Player: Ability to collaborate effectively with other developers, product managers, and engineers to ensure the success of key projects.

Preferred Qualifications

• Knowledge of continuous integration and continuous delivery (CI/CD) pipelines.
• Experience with containerization tools like Docker.
• Familiarity with DevOps principles and practices