Fullstack Developer (Python/React) at IRIUM – Alfragide, Lisboa

At IRIUM we want you to always chase your dreams. Here, prepare yourself to conquer your goals, while enjoying the journey.

We are currently looking for. Fullstack Developer

Requirements:

We are looking for a #TechTalent to work as a Senior Full‑Stack Developer (Python/React) for a 6‑month international project.

🙂 YOUR DAY TO DAY
Develop scalable and high‑quality solutions across the full stack, with emphasis on Back-End development
Build and maintain modern React applications, ensuring reusable components, efficient state management, and optimized performance
Design, implement and evolve APIs using Python and FastAPI, ensuring security, modularity and high performance
Manage relational databases, optimize SQL queries, and maintain schema versioning using Alembic
Create and optimize Apache Airflow DAGs for data‑driven workflows
Work with AWS services to deploy, scale and monitor applications (ECS, S3, RDS, DynamoDB, API Gateway)
Apply Infrastructure as Code practices using Terraform or CloudFormation
Contribute to AI‑driven features using LLMs, LangChain, and services such as Amazon Bedrock
Collaborate with cross‑functional teams, participate in Agile ceremonies, and support continuous improvement
Ensure best practices in security, performance, documentation and code quality
💡 WHAT WE'RE LOOKING FOR
Strong proficiency in Back-End development with Python + FastAPI
Solid experience with React (components, hooks, state management, REST & GraphQL APIs, performance)
Strong SQL knowledge and experience with relational databases (PostgreSQL/MySQL)
Experience with Alembic for schema versioning
Experience building and maintaining workflows with Apache Airflow
Hands‑on experience with AWS (ECS, S3, RDS, DynamoDB, API Gateway, IaC, IAM)
Practical experience with LLMs, LangChain, prompt engineering and/or Amazon Bedrock
Good communication, teamwork, organization and proactivity
Experience working in Agile environments (Scrum or Kanban)
Fluency in English

Location: Lisbon, hybrid

What do we offer?

➡ An innovative and growing company, with a lot of opportunities for professional development.

➡ Retribution according to your experience and performance. Access to flexible pay and medical insurance as a social benefit.

➡ Unlimited access to technological training in free mode.
IRIUM is a company with dynamic and proactive professionals. Our values are responsibility and commitment to work quality. This is the spirit we are looking for at IRIUM, whatever your age is. If you recognize yourself in this, this is your company!
We can build the future together. Let’s talk!

Send your CV to: recrutamento@irium.pt
At IRIUM we defend a world without stereotypes or limitations and we believe in equality for all, principles that we subscribe to in our Equality Plan and Code of Ethics, guaranteeing equal treatment and opportunities regardless of any personal, physical or social condition.