Senior Developer – Python / AWS Serverless (5 consultants)
Job description:
For our client we're currently looking for 5 senior developers (not a team). **Assignment Overview** We are seeking a highly skilled and motivated Senior Developer with strong experience in Python and cloud-native development to join our team. In this role, you will work extensively with AWS Serverless technologies, building scalable, reliable and high-performing backend systems that support business-critical applications. The assignment involves designing, developing and maintaining modern cloud-based backend services, with a strong focus on performance, reliability and scalability. The systems are built using serverless architectures and event-driven patterns, enabling efficient and flexible solutions in a cloud-native environment. You will collaborate closely with cross-functional teams including developers, architects, product owners and DevOps engineers to ensure that technical solutions align with business needs and long-term platform strategy. The role requires a developer who is comfortable working in complex distributed systems, contributing to architectural discussions and ensuring that solutions follow modern engineering best practices. **Responsibilities** The consultants will contribute to the development and continuous improvement of cloud-based backend services, including: - Developing and maintaining backend services using AWS Serverless architecture - Implementing scalable and reliable solutions using Python - Designing and building services that support data-driven and event-based architectures - Working with AWS storage and database services to support application functionality - Troubleshooting, optimizing and enhancing backend systems to ensure high availability and performance - Collaborating with cross-functional teams to deliver solutions aligned with business needs - Contributing to CI/CD automation and improving deployment workflows - Ensuring that solutions follow best practices for security, scalability and maintainability **Required Competence** **Backend Development** - Strong experience in Python backend development - Experience building scalable backend systems in cloud environments - Solid experience with AWS Serverless technologies, including: - AWS Lambda - AWS Step Functions - AWS API Gateway - Experience working with event-driven architectures **Cloud & Data** - Hands-on experience working with AWS databases and storage solutions - Experience with relational databases (PostgreSQL or SQL) - Understanding of data-driven application design **DevOps & Development Practices** - Experience using Git for version control - Experience with CI/CD pipelines, preferably GitLab CI/CD - Familiarity with modern cloud-native development practices **Frontend (Meritorious)** - Experience with Angular or React **Meritorious Experience** - Experience with event-driven architecture patterns - Experience with Domain Driven Design (DDD) - Experience building microservices in cloud environments - Experience working in large-scale enterprise environments **Personal Profile – Critical for Success** Technical skills are essential, but we are equally looking for individuals who contribute positively to team collaboration and continuous improvement. **We are looking for someone who:** - Demonstrates strong analytical and problem-solving skills. - Communicates clearly and collaborates effectively with team members and stakeholders. - Is passionate about building scalable, secure and high-quality systems. - Works proactively to improve technical solutions and development practices. - Is comfortable working independently as well as in team environments. - Shows curiosity and interest in modern cloud technologies and architecture. Success in this assignment requires both technical excellence and strong collaboration capabilities. **Education** - Degree in Computer Science, Software Engineering, or a related technical field, or equivalent professional experience. Work Location: Södertälje – Onsite and Hybrid Interview Format: Remote (online). Duration: 16/03/2026 – 30/11/2027 Language Requirement: Fluent in English (spoken and written). Swedish is merited.