> Markdown version of [/jobs/ext/2020506-principal-software-engineer-marketplace](https://www.wearedevelopers.com/jobs/ext/2020506-principal-software-engineer-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). --- # Principal Software Engineer Marketplace - **Company:** Hey There We're Fever - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Distributed Systems, Release Management, Software Engineering, Systems Integration, Data Analytics - **Published:** August 11, 2026 - **Apply:** https://es.trabajo.org/oferta-4112-f1c979078f8b17ba7460237b819951b4 ## About the Role leading engineering leaders and cross-functional, product-facing organisations. Proven experience leading multiple teams through managers, ideally in a marketplace, checkout, discovery, growth, consumer trust, or adjacent funnel-heavy domain. Strong technical judgment in distributed systems, modern cloud infrastructure, APIs/ integrations, mobile/web product systems, observability, and incident management. Experience owning or partnering deeply on at least two of the following: search/ recommendations, checkout/payments, risk/fraud/trust, retention/lifecycle/post- purchase, internationalisation/localisation, high-traffic consumer web/mobile. Demonstrated ability to translate commercial goals into engineering priorities using metrics, experimentation, and clear trade-off decisions. Track record of improving engineering maturity: planning discipline, staffing models, quality systems, architecture review, delivery predictability, and leadership development. Nice to have Experience in a ## Description through booking and post-purchase engagement. Raise the bar on traffic resilience and operational excellence, including readiness for peaks, launches, on-sales, incident response, observability, and capacity planning. Improve the marketplace's underlying systems for search and discoverability, pricing and conversion, checkout and payments, post-purchase servicing, and experimentation. Balance short-term growth initiatives with long-term platform health, simplifying architecture where helpful and investing where the next bottleneck will emerge. Establish clear operating mechanisms: quarterly planning, technical review, dependency management, staffing plans, engineering metrics, and post-incident learning. Help shape company-wide engineering standards in platform quality, release management, data-informed decision-making, and AI-enabled engineering productivity. About You Basic Qualifications / Must haves Deep seniority: around 10+ years in software engineering, with substantial experience