Full Stack Engineer

Our client is a technology company building robust, scalable systems, comparable to leaders like MongoDB and HashiCorp. They are at an early stage and need a senior fullstack engineer to design and implement new products from the ground up. This role exists to drive architecture and hands-on development without reliance on established frameworks, targeting candidates who thrive in ambiguity and autonomy.We accept applicants from the UK; however, priority will be given to candidates with the right to work in Europe🔧 Core expectation (what they really want)A senior-level systems engineer (7+ years) who can:Build backend + frontend systems end-to-endDesign distributed systems and architecture from scratchMake independent technical decisions without frameworksWork in high ambiguity, early-stage environmentOwn product development from concept → productionCritical requirementsGo is mandatory and central to the role. We are specifically looking for someone who:Has deep production Go experienceBuilds scalable backend systems in GoUnderstands Go in the context of: microservices, APIs, system design, cloud-native infrastructureCan use Go as the primary systems language, not just secondary tooling👉 If you don’t have strong Go in production, you are automatically filtered out.Technical scopeYou are expected to work across the full stack:Backend (primary focus)Go-based microservicesAPIs and distributed systemsDatabases (SQL + NoSQL)Cloud infrastructureFrontend (secondary but required)Ability to build interfaces when neededNot necessarily deep frontend specialization, but full ownership expectedSystems levelArchitecture designPerformance optimizationScalability decisionsTechnology selection (no rigid stack)🚀 Ideal candidate profile hasBuilt 0→1 products in startupsWorked without rigid frameworksGolang hands-on experienceShipped systems independently end-to-endStrong polyglot engineering abilityExperience choosing and integrating technologies into productionComfortable in remote EU-based distributed teams🟢 Strong signals (green flags)Built products from scratch in early-stage startupsDesigned system architecture independentlyDeep Go production experienceExperience with distributed systems / microservicesStrong autonomy + ownership mindsetHas shipped real production systems, not just internal toolsCompensation & benefitsSalary to be discussed DOE + Equity 0.1–0.25% equity PerksOpportunity to shape architecture and technology from day one Collaborative, hands-on workenvironment.