Experienced Software Engineer - Code Foundations ( Frontend major)
Back Market is hiring an Experienced Software Engineer - Code Foundations ( Frontend major) in Barcelona, Spain. Level rates it ; you can apply on Back Market.
Level's read on this job
- Little AI ●○○○ is how Level rates this software engineer role: aI is not part of the work.
- The posting allows some remote work.
- Tools and skills the posting cites include CI/CD, frontend and software engineering.
- Level classifies it as a senior role.
- Level lists 32 other open roles at Back Market.
AI in this role
Experienced software engineer focusing on frontend architecture, developer experience, and platform tooling for a refurbished tech marketplace.
Hi, we’re Back Market.
We’re here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new.
Yep, you read that right. Turns out refurbished tech is way better for the planet than new. In fact, With every device purchased on Back Market, our positive impact on the planet grows. From our Customer Care representatives to our software engineer, every individual at Back Market cuts the planet — and consumers — a break. Our mission is simple: to do more with what we already have.
Are you ready to join us?
About the role
We're looking for a versatile Software Engineer with strong frontend fundamentals and a healthy curiosity for everything around them.
You might work on frontend architecture one day, improve CI or local development the next, and then dive into performance, observability, deployment, or platform tooling. You enjoy understanding how things work beyond the browser, and you're comfortable reasoning across the edge, CDN, server, application, and data layers.
This is a build-it-and-run-it environment. We own what we build, operate it in production, and improve it when reality inevitably gives us feedback.
What you'll do
- Build and improve platform capabilities and Golden Paths for frontend engineers.
- Make frontend delivery more consistent, reliable, and self-service.
- Improve the developer experience across local development, testing, CI/CD, releases, and deployments.
- Work on complex frontend platform topics such as caching, performance, configuration, observability, and application architecture.
- Help define sensible standards without creating unnecessary ceremony.
- Collaborate with - Build and improve platform capabilities and Golden Paths for frontend engineers.
- Make frontend delivery more consistent, reliable, and self-service.
- Improve the developer experience across local development, testing, CI/CD, releases, and deployments.
- Work on complex frontend platform topics such as caching, performance, configuration, observability, and application architecture.
- Help define sensible standards without creating unnecessary ceremony.
- Collaborate with product engineers, platform teams, and technical leaders across Back Market.product engineers, platform teams, and technical leaders across Back Market.
- Write maintainable code with appropriate tests and documentation.
- Participate in technical discussions, code reviews, incident response, and the occasional "how did this end up in production?" investigation.
- Share what you learn and help make the platform easier for everyone to use.
What we're looking for
- Strong professional experience with JavaScript and TypeScript.
- Solid frontend fundamentals, including browser behaviour, HTTP, SSR, APIs, performance, and application architecture.
- Experience with Vue.js and Nuxt, or a comparable frontend ecosystem.
- A good understanding of caching and performance trade-offs. You can reason about cache keys, invalidation, freshness, consistency, and privacy.
- Experience with CI/CD, automated testing, and production software delivery.
- Interest in the broader stack, including backend services, infrastructure, observability, and developer tooling.
- Strong ownership and a pragmatic approach to solving problems.
- The ability to navigate ambiguity, explain complex topics clearly, and work well with others.
- Good written and spoken English.
You don't need to know every tool in our stack. We certainly don't expect you to. What matters is that you can learn quickly, ask good questions, and make complex things simpler for the engineers using your work.
Our technical environment
- Frontend: Vue.js, TypeScript, Nuxt, Storybook, Tailwind
- Backend: Python, FastAPI, Go
- Data and messaging: PostgreSQL, Redis, Kafka, RabbitMQ, BigQuery
- Infrastructure: GCP, Kubernetes, Docker, ArgoCD, CircleCI, GitHub, BackStage, Grafana, Open Telemetry
Recruitment process
- HR screening, 45 minutes
- Coding and testing module, 60 minutes
- System design discussion, 60 minutes
- Tech leadership and manager interview, 75 minutes
- Back Market values interview, 45 minutes
Hybrid work
We work in a hybrid setup, with three days per week in the office. Monday is mandatory. Additionally there is one remote week per quarter.
WHY SHOULD YOU JOIN US ? ✌🏼
At Back Market, we’re committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives — it’s one of the reasons we’re such a high-scoring certified B Corp company (93.2).
No matter your role and seniority level, you’ll enjoy impact-driven work with hands-on career development in an innovative, driven, and fast-paced environment — with benefits to match, like:
- A mission driven work environment where your day to day makes an impact on the planet. Seriously.
- Hybrid work environment, with 2 remote days a week and 1 remote work week per quarter, plus 3 flex days.
- Employee Resource Groups, including mentorship programs, comprehensive accessibility policies, and cultural competency training.
At Back Market, we strive to create a workplace that embodies the world we’re trying to change. We’ve embedded our diversity, equity, and inclusion principles into our DNA — from dedicated staff to employee resource groups to our company values.
We know that the perfect background for a role doesn’t mean the perfect fit — we encourage you to apply for a role even if you think you may not have all the qualifications.
If reasonable accommodations are needed for the interview process, please do not hesitate to discuss this with the Talent Acquisition Team.
How we rate this
Experienced Software Engineer - Code Foundations ( Frontend major) at Back Market rates 0 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.
Little AI. AI is not part of the work.
- ●●●● Builds AI80 to 100
- ●●●○ Works on AI60 to 79
- ●●○○ Uses AI40 to 59
- ●○○○ Little AI0 to 39
Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.
Prepare for this job
Built from this posting and from similar jobs on Level.
Skills and AI tools this role asks for
Pay
- Typical software engineer job
- $168k
This posting doesn't list pay. Use the typical software engineer figure when pay comes up. See software engineer jobs
Questions you could be asked
- Tell me about a project where frontend was part of your work. What did you do?
- Tell me about a project where software engineering was part of your work. What did you do?
- Tell me about a project where developer experience was part of your work. What did you do?
- Tell me about a project where web performance was part of your work. What did you do?
- Walk me through how you've used CI/CD in your day-to-day work.
Adapt your resume
- List these exact terms on your resume: Frontend, Software Engineering, Developer Experience, Web Performance, and CI/CD. An applicant tracking system matches the wording, not the idea.
- Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
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