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.