Sierra Studio
Full Stack Engineer (Ruby On Rails) - Backend focused
Skills
2 months ago
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Important information
Contract type:
Permanent
Location:
São Paulo, State of São Paulo, Brazil
Work mode:
Remote
Published on:
4 September 2026
What they need
About Sierra Studio
When you apply to Sierra, you join an ecosystem. We specialize in connecting talented Brazilian professionals with exciting career opportunities in a highly-vetted small community of growing companies in the US. Applying to Sierra seamlessly integrates you into this ecosystem, granting automatic eligibility for all relevant opportunities we offer.
About our hiring partner
Our hiring partner is building the modern platform for lab testing, starting with consumer goods brands. They help companies test more cheaply and quickly, and enable them to use lab results to automate regulatory compliance and grow revenue.
They believe consumers deserve to know the purity and accuracy of every product that affects their families' health. Improving our food system starts with increasing transparency and creating a more informed customer. Not only are they building a lab that makes testing faster, cheaper, and easier, but also the infrastructure that allows brands to:
Market and highlight their lab results by making it easy to push lab data directly to product display pages. Here, brands will highlight what's in their product (active ingredients + they meet their claims) and what's not in their product (heavy metals, environmental toxins, PFAs, etc)
Automatically comply with regulations like Prop 65, CA AB 899, Amazon testing requirements, etc.
By integrating the full experience – from testing to the data sharing with customers – they're building a more efficient and streamlined process. Brands can now differentiate themselves and become the no-brainer choice in their category through testing and great transparency.
They're a team of experienced founders that have raised $12M from top VCs (8VC and Valor), with top CPG founders and strategics also coming into the round. Whether you're lab tech, engineer, sales, marketing, or customer support, you'll have a seat at the table as they work to increase transparency in the food system.
Role Overview
As an early software engineer, you will be instrumental in building out the software platform to manage all lab testing. You'll have agency to design and implement a modern software platform to help some of the world's most impactful brands manage lab testing and compliance.
Responsibilities
Build a modern SaaS platform to help CPG brands and manufacturers manage lab testing and compliance
Play a critical role from the start, working alongside the founding engineer and customers to build and refine the platform
Leverage your expertise in systems architecture to evaluate technical trade-offs and make informed decisions
Implement security best practices to safeguard data and application integrity
Requirements
Experienced full stack engineer (4+ YOE) with strong proficiency in Ruby on Rails, Turbo (Rails Hotwire), Tailwind CSS, and PostgreSQL
Experience with React is a plus
Bias to action - this is early stage 0 to 1 execution
Bonus points if you're comfortable with UI/UX best practices and working closely with design teams
Mission alignment is critical: looking for folks who are excited about bringing transparency to our food system
Excellent communication and interpersonal skills, capable of seeing the big picture and solving problems autonomously
Previous experience in a developer role in high growth startups
Values
First Principles
Looking for team members who can deal with ambiguity, deconstruct problems, and build the optimal solution
Question every requirement → Delete any part or process you can → Simplify and optimize → Accelerate cycle time → Automate
Standard of Excellence
High standards are contagious. A+ talent attracts A+ talent
There's a glut of mediocrity in the world. They're chasing after the products and people that strive for excellence
Bias for Action
Take initiative, make decisions quickly, and have a willingness to experiment and learn from failures
Customer expectations are not static. They rise over time, which means we have to continuously improve every single day
Low Ego
Coachability; it's not about being right, it's about getting to the right answer
Reacts calmly to criticism or negative feedback, and has a "feedback is an opportunity for information and improvement" mindset
Respectfully challenges decisions when you disagree, even when doing so is uncomfortable. Once a decision is made, even if you still disagree, commit wholly and move forward
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