Are You Looking for a Freelance Developer?

  • Do you need to optimize the resources consumption of your application?
  • Do you need to reduce the costs of your AWS platform?
  • Do you need to automate your development pipeline?
  • Do you need someone who creates a standalone project?
  • Do you need some coaching in the team?
  • Do you need an expert developer?

I’ve been building Web projects for 15 years now. Mainly working on the backend side but also solving performance problems, optimizing infrastructure costs, or speed up deployment cycles.


I’ve worked with Spring Boot applications, with all the Spring ecosystem (JPA, Spring Security, Hibernate, Cloud…).


Working on all the sides of a project, lead me to perform DevOps tasks, like managing CI/CD pipelines, releasing Docker images and configuring the network access between the services.


Working in the DevOps field made me learn more about Python. From there, I’ve also worked with Web applications in Python and Flask. I’ve also handled some images processing with OpenCV and graphs generation with Matplotlib.


Most of the project I’ve been working on were deployed on AWS. I’ve used and configured the most demanded AWS Services like EC2, ECS, RDS, VPC, SQS, Lambda, SSM…

Sergio Lema
Software Architect

I’m a professional developer with more than 15 years working on different environments. I’m also active with the community writing articles, technical videos and answers at StackOverflow.

I’m based in Paris (France) and available for videoconferencing.

Need more details? Discuss about the availability?

Send me a message!

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