Sr. Full Stack Software Engineer Job at Collinson (Sao Paulo)

Sr. Full Stack Software Engineer

Collinson

Location:
Brazil , Sao Paulo

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

As a Senior Software Engineer, you’ll be a key figure in one of our cross-functional teams, designing and building cloud-native, greenfield products from the ground up. You’ll take ownership of features and new capabilities, working closely with a Product Manager, Engineering Manager, and your teammates to deliver high-quality software that is reliable, scalable, and secure. You’ll be hands-on every day; refining stories, writing code, reviewing pull requests, and solving interesting technical problems. You’ll bring strong engineering practices to the team and help shape the way we build software. While you’re not expected to manage people, your technical depth and experience mean you’ll naturally become a point of reference for others on the team. We have a modern TypeScript stack, cloud-native environment, containerised deployments, and a strong focus on automation, observability, and AI-enhanced development.

Job Responsibility:

Write clean, efficient, and testable code, owning complex features and services from design to deployment
Work closely with your squad (PMs, engineers, QAs) to refine requirements, scope technical solutions, and deliver great software
Champion automated testing and CI/CD. You’ll write unit, integration, and contract tests, and help make our systems robust and reliable
Build, deploy, and monitor services in AWS using tools like Terraform, Kubernetes, and GitHub Actions
Take responsibility for the health, performance, and maintainability of the code you ship
Help evolve our engineering standards and practices by sharing knowledge, reviewing code, and learning from incidents
Champion observability. You’ll be using DataDog to monitor services and debug production issues
Being a mentor and teacher to less experienced engineers
Develop in an Agile environment using tools like Git, Jira, and Confluence, with a mindset of collaboration and continuous improvement

Requirements:

5+ years of experience in software development with a strong focus on TypeScript (Node.js & React) and excellent knowledge of JavaScript fundamentals
Fluent or Advanced knowledge of English language
Experience building and running production systems in AWS using tools like EKS, Lambda, RDS
Skilled in designing and building GraphQL and RESTful APIs, with practical knowledge of MongoDB, PostgreSQL, and Kafka
Comfortable developing software within an event-driven architecture
Deep knowledge of writing automated tests with Jest, Pact, and the principles of TDD
Comfortable building and maintaining CI/CD pipelines (we use GitHub Actions) for code deployment primarily using Terraform
Experience using DataDog (or similar) to monitor services and debug production issues
Experience working in Agile environments using tools like Git, Jira, and Confluence, with a mindset of collaboration and continuous improvement
Able to take a problem and run with it, bringing a pragmatic, product-focused approach to software delivery

Nice to have:

Show initiative: self-driven, independent problem-solver who take ownership end-to-end
Innately curious: constantly questioning, learning, and seeking deeper understanding
Innovative: think outside the box and be creative and implement ideas that enhance our systems - innovation is valued highly at Collinson
Communicative collaborator: share openly, work across teams, and integrate feedback
Strong analytical and investigative problem-solving skills
Hungry and eager to make a difference at a technical and operational level
The ability to get things done – we don’t like micro-management, but we expect you to do the right thing
An attitude of being proud of your code and taking ownership

What we offer:

Medical, dental, life insurance for employees
Meal voucher
Transportation or parking voucher
Home office 3x a week
Priority Pass membership (eligible after 90-day probation period)
Work from anywhere for 8 weeks (eligible after 90-day probation period)

Additional Information:

Job Posted:
March 01, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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