About LoopOS
We are a growing green tech start-up based in Coimbra (Portugal). Our purpose is to make sustainability happen in the real world and in real businesses. We're an experienced company in the circular economy field and we work every day to be the best company in the world in this area. We've proved our worth and raised a 3M€ seed round to bring impact to the community - each item circulated through LoopOS increases the world's green footprint.
As a team,we are highly motivated to do remarkable things every day. We Loopers areexceptional people, passionate about our mission and dedicated to deliver the best circular economy solutions to our customers and partners!
Our visionary experienced founders are ready to invest in hard-working people. We have a new chapter to write and want to give you the opportunity to shape your future and the future of circularity. Let's make it circular!
About the Role
Act as the bridge between product and real-world use, ensuring our platform works effectively within client and partner environments. This role combines full-stack development, system integrations, and close collaboration with stakeholders to design, implement, and maintain robust production solutions.
Key Responsibilities
Client & Partner Collaboration
- Work directly with clients and partners to understand processes, needs, and business challenges
- Translate requirements into concrete technical solutions, from discovery to implementation
- Act as the technical owner of delivered integrations and solutions
- Support onboarding, rollout, and troubleshooting sessions with both technical and non-technical stakeholders
Product Engineering & Integrations
- Develop and maintain integrations with partners and third-party systems using Ruby on Rails
- Implement features and “last-mile” customizations tailored to specific needs
- Work with modern frontend tools (Turbo, ViewComponents, React) to adjust user-facing experiences
- Contribute to reusable improvements in the core product based on client learnings
Operations & Production Reliability
- Monitor integrations and systems in production, ensuring stability and performance
- Investigate and resolve bugs, incidents, and integration failures
- Work closely with Delivery and Operations teams to respond quickly to critical needs
- Create documentation, runbooks, and best practices for ongoing support
Quality & Best Practices
- Write clean, maintainable, and well-tested code
- Participate in code reviews and contribute to engineering standards
- Ensure best practices in testing, debugging, and observability
Technical Requirements
- Solid experience with Ruby on Rails (APIs, production systems, debugging)
- Familiarity with modern frontend tools (Turbo, ViewComponents, React)
- Experience with Docker and deployment workflows
- Strong troubleshooting skills in production environments
- Experience working with integrations (APIs, webhooks, third-party systems)
Nice to have:
- Experience with cloud platforms (AWS/GCP)
- Observability tools (logs, metrics, monitoring)
- Experience with SaaS integrations
What We’re Looking For
- Strong problem-solving skills in real-world production contexts
- Systems thinking mindset
- Comfortable working with ambiguity and evolving systems
- High level of ownership over delivered solutions
- Strong communication skills with both technical and non-technical stakeholders
- Interest in working close to customers and understanding real product impact
Find out what is like to work at LoopOS
- Youthful and friendly entrepreneurial spirit, we support each other relentlessly.
- We highly value our productivity and strive to maintain an optimal work-life balance.
- Career development and significant growth within the company, we push each other to excel every day.
- Integrative team-buildings and outdoor activities, we value our day-to-day out of the office.
- Opportunity to work close to big companies, we never want to stop growing.
- Health insurance, + 26 days of holidays per year and a Coverflex budget per month.
At LoopOS we are committed to create an inclusive and diverse workplace. Our employment decisions are based without regard to race, religion, color, age, genetic information, sex, sexual orientation, gender, gender identity, gender expression, citizenship, ancestry, marital status, physical or mental disability, pregnancy or childbirth. If you need assistance and/or accommodation, please let us know.
