Principal Performance Engineer | Build the Future of Performance Engineering Location: Fully Remote (Spain) Type: Full-Time | Permanent Industry: FinTech / Payments Salary: €80,000 + Bonus Level: Principal | Hands-On | Strategic Leadership Do you want to own, shape, and lead a performance engineering function at scale? ViVA Tech Talent is hiring on behalf of a high-growth FinTech company. They’re looking for a Principal Performance Engineer to define and deliver performance testing environments, tooling, and strategy across a hybrid infrastructure. This is a chance to shape something foundational from the ground up. Why You’ll Love This Role Full Ownership – Define and deliver the performance strategy across the business. Strategic Influence – Guide performance direction across engineering and operations. Real-World Simulation – Architect environments to replicate production traffic at scale. Visible Impact – Your work directly supports key systems used by thousands. Empowered Culture – Work within a curious, outcomes-driven engineering team. ️ What You’ll Be Doing * Lead the design and implementation of performance testing strategy across systems and teams. * Architect realistic test environments for load, stress, and soak testing. * Work with Engineering and DevOps to build performance into the development lifecycle. * Translate real user activity into scalable test simulations. * Build tooling to support system modelling and load generation. * Tune infrastructure and applications to support high availability and scalability. * Drive early performance analysis and risk mitigation across product teams. * Provide visibility of testing results and performance trends to technical leadership. What You Bring * 8–10 years of performance engineering experience within large-scale tech environments. * 5+ years in a senior or lead-level role. * Deep knowledge of performance testing tools (e.g. JMeter, BlazeMeter, K6, Kibana). * Strong experience testing APIs, UIs, services, and enterprise databases (e.g. Oracle, PostgreSQL). * Ability to design replica environments that mimic production performance. * Familiarity with IaC and modern DevOps practices. * Skilled at identifying bottlenecks across application and infrastructure layers. * A pragmatic, strategic mindset with a focus on systems that scale. What You’ll Get €80,000 + performance bonus ️ Unlimited holiday policy Fully remote with home setup & broadband budget ️ Premium equipment & dual-monitor setup Annual learning budget + tuition reimbursement Inclusive culture with healthcare, pension & wellbeing support A tech-first environment that values ownership, autonomy, and delivery Ready to Drive Performance at Scale? Be the architect behind a new performance capability at one of the most forward-thinking FinTechs. Apply via LinkedIn – don’t miss this unique opportunity!