> Markdown version of [/jobs/ext/47900-senior-software-engineer-api-marketplace](https://www.wearedevelopers.com/jobs/ext/47900-senior-software-engineer-api-marketplace). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer - API & Marketplace

- **Company:** Factorial
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Temporary contract
- **Skills:** Application Programming Interfaces (APIs), Code Review, Ruby on Rails, Software Requirements Analysis, Marketplace
- **Published:** May 15, 2026
- **Apply:** https://es.indeed.com/viewjob?jk=8c635f4b4c01e991

## About the Role

Do you have experience in Ruby on Rails?

## Description

You will be building not only integrations, but also facilitating developer partners to have the best possible experience building their own., * You will be a product engineer, taking ownership of big initiatives, and being interested in the outcome, not just the output. About the outcome, you'll also work with your team members to establish goals and plan a quarterly roadmap, putting special attention to the technical needs of our domain.

 * A Senior Engineer at Factorial influences requirements definition and is autonomous in delivering a polished solution that matches those. You participate in the team's decision through Requests For Comments (RFCs) that you write yourself or read others'.
 * You will be involved in customer calls to learn about their pains & needs.
 * You will review code daily and get feedback on your code at every pull request, from all team members, including juniors.
 * You will learn from the entire team, both on technical topics (performance, architecture…) and core skills, in an environment driven by engineering quality. You will also mentor junior team members and help them learn from your experience.


## Related Videos

- [Fireside Chat with David Heinemeier Hansson](https://www.wearedevelopers.com/videos/980-fireside-chat-with-david-heinemeier-hansson)
- [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson)
- [Launching a marketplace on-time: A lesson in taking shortcuts using spreadsheets!](https://www.wearedevelopers.com/videos/477-launching-a-marketplace-on-time-a-lesson-in-taking-shortcuts-using-spreadsheets)
- [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data)
- [Single Server, Global Reach: Running a Worldwide Marketplace on Bare Metal in a Cloud-Dominated World](https://www.wearedevelopers.com/videos/1206-single-server-global-reach-running-a-worldwide-marketplace-on-bare-metal-in-a-cloud-dominated-world)
- [100 million days in Vienna: A story of APIs & AI in tourism.](https://www.wearedevelopers.com/videos/93-100-million-days-in-vienna-a-story-of-apis-ai-in-tourism)

## Related Articles

- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)