Intermediate Backend Developer

Who are we?

We are Mosano, a Remote First Software House based in Oporto, Matosinhos, focusing on web and mobile development. We are a team of talented young people who always aim to deliver the best.

Who do we work with?

We work with well-established companies that demand the highest quality in every line of code we ship.

We Are Looking For An Intermediate Fullstack Developer Who

• Has solid experience working with AWS, including both serverless and non-serverless services.
• Is proficient with the AWS SDK, particularly:
• JavaScript for Node.js-based services.
• Python (boto3) for scripting and infrastructure tasks.
• Is comfortable working with Infrastructure-as-Code, using tools like:
• AWS CDK
• Terraform
• Bonus if you have cloud-agnostic experience — we are in the process of migrating some services to Google Cloud Platform (GCP).
• Has experience developing backend services in:
• Node.js / TypeScript
• Python
• Java or Kotlin
• Can work with both relational and NoSQL databases, such as:
• PostgreSQL
• DynamoDB
• Elasticsearch
• Understands monolithic architectures, but is also experienced with:
• Microservices
• Event-driven systems
• Has some understanding of frontend technologies, especially React.
• Is curious and open to exploring AI integrations, including:
• Working with LLMs (Large Language Models)
• Building RaGs (Retrieval-Augmented Generation) or MCPs (Model Context Protocol) servers/clients
• Designing and implementing intelligent AI agents
• Is responsible, security-conscious, and ideally has experience (or willingness to adapt to) working in the healthcare domain, where compliance and handling of PHI (Protected Health Information) are critical.
• Is open to contributing ideas and solutions, and eager to collaborate on system architecture decisions, especially in the context of cloud infrastructure, microservices, and AI-powered systems.
• Understands and works with CI/CD pipelines, particularly with GitHub Actions in daily development workflows.
  

Requirements

• 3+ years of professional experience in backend development.
• Proficiency in Node.js/TypeScript and/or Python.
• Familiarity with AWS, including both SDKs and core services (serverless and traditional).
• Experience with Infrastructure-as-Code using CDK, Terraform, or similar.
• Hands-on experience with relational and NoSQL databases.
• Understanding of microservices, monoliths, and event-driven architectures.
• Some exposure to frontend development with React.
• Strong communication skills and a collaborative mindset.
• Willingness to work in regulated environments and contribute to building secure, compliant software systems.
• Nice to have: Experience in healthcare or similar regulated industries.
• Nice to have: Exposure to AI technologies, LLM integrations, or AI agent development.
• Nice to have: System design and architecture knowledge.
  
  

What perks await you?

• A salary that meets your expectations
• Annual Bonus
• Health Insurance
• No closed doors, remote first, and flat hierarchy
• Top-notch equipment
• A cool and fun environment to work in, with a nice team culture and some nice dinners together :)