Empleos de high-performance engineer wanted en Zaragoza

Trading 212 Ltd. is seeking a Senior Backend Engineer to own end-to-end backend solutions across a microservices landscape. You will design scalable services, ensure performance and data integrity, and collaborate with product and engineering to translate complex requirements into durable systems.You will work with Java 21 (Spring), Go, and Node.js...

DeepRec.ai is hiring an Applied AI Engineer to join a small founding team building an AI native productivity platform. The role focuses on creating reliable ML-powered features across email-oriented workflows, with an emphasis on context maintenance, decision support, and user-in-the-loop approvals.You will design prompts, tools, memory and agent workflows;...

Elastic seeks a Senior Software Engineer to join the Elasticsearch Performance team. You will drive performance optimization across distributed systems, focusing on core design, profiling, and scalable improvements.Responsibilities include implementing performance models, running benchmarks with JMH/Rally, and guiding autmation for profiling and regression...

Sapsol Technologies Inc. seeks a systems-level hardware engineer with MBSE and strong MATLAB/Simulink experience for avionics-grade projects. You will design PCIe card assemblies, mentor engineers, and work with engineering, operations and manufacturing to resolve issues and improve yield.You will document procedures, perform testing and integration, and...

Fever seeks a Senior Software Engineer to join the engineering team. You will own the backend design and delivery for scalable services, focusing on Python code quality, robust testing, and deployability.The role emphasizes high concurrency, RESTful APIs, and event streaming, with CI/CD pipelines guiding production readiness. You will work remotely from...

Semrush Inc. is seeking a senior backend engineer with strong Go expertise to own complex features and ensure backend quality. You will design scalable APIs, drive performance tuning, and guide mid-level and junior developers within a data-driven team.You will contribute to CI/CD pipelines, incident responses, and best-practice coding standards while...

We're partnering with a highly successful global DTC consumer brand to appoint a Director of Performance Marketing.The business has scaled to $100m+ in annual revenue, is profitable and self-funded, and has previously operated at significantly greater scale. The opportunity now is to rebuild and optimise the acquisition engine and return the business to...

Overview In this Senior Backend Engineer role, you help build Fever's high-performance live-entertainment platform. You work within a fast-growing engineering team to deliver scalable features and robust services. You'll collaborate with Product, Data, and other engineers to improve architecture, observability, and developer experience. This position offers...

Cranberry Panda is seeking a Director of Performance Marketing to own global customer acquisition and drive sustainable growth for a high-growth DTC brand. You will lead media strategy, creative testing, and channel expansion beyond Meta, including TikTok and Amazon.The role reports to the founder and CFO, with significant autonomy and budget authority to...

Foth is a 100% member-owned science and engineering consulting firm headquartered in Wisconsin, with over 85 years of success. Our 700 members across 29 locations are dedicated to solving our clients’ toughest science and engineering challenges. Consistently ranked by Engineering News Record in the top 150 firms, we offer a values-based, collaborative, and...

Ashby in Spain is seeking an Engineering Manager to build a high-performance team and culture where engineers own their problems and drive outcomes. You will help engineers develop their skills, set clear expectations, and foster a collaborative environment that values both technical excellence and leadership.You will focus on staffing, coaching, and...

Company Description White Marketing is a growth-focused performance marketing partner that helps brands build acquisition systems that drive measurable business outcomes. For over 7 years, the team has supported more than 150 companies across SaaS, eCommerce, health, travel, lifestyle, and B2B services. Using a Human-led, AI-enhanced framework, White...

About HuzzleAt Huzzle, we connect exceptional talent with top opportunities at leading companies across the UK, US, Canada, Europe, and Australia. Our clients include fast-growing startups, SaaS platforms, and digital-first businesses. Unlike traditional outsourcing models, you are placed directly with a client as an in-house team member, contributing to...

About The CompanyScramblyis one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years.We're growing 250%+ YoY across revenue, team, product, and technology — fully bootstrapped and profitable.We're building the future of app discovery: a reward-powered alternative to the...

About the RoleWe're looking for a Principal Server Engineer to own the backend systems powering our live games - services currently supporting 1M+ DAU. You'll be responsible for performance, scalability, and reliability at the core of our infrastructure, working closely with the engineering team on everything from schema design to incident...

Search AI Company is seeking a Principal Software Engineer to join Platform Infrastructure - Application Networking and define the future of cloud networking for our data-driven platform. You will own designs for Ingress, private connectivity, DNS, and security controls at scale, mentor engineers, and collaborate with product management to guide...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Founding Engineer based in Spain.This is a high-impact founding engineering opportunity at an early-stage AI infrastructure startup. You'll work directly with the founder to transform a working AI agent product into robust,...

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Distributed across 200+ public data centers globally and...

Craft:Technology & DevelopmentJob Description:We are looking for aSenior Audio Engineerto join the Game Production core systems team, King's cross-platform mobile game-engine and content-creation platform. Our engine, editor, and toolchain empower hundreds of developers and support some of King's largest live games.As a senior engineer, you will combine deep...

Help Us Build The Future of TravelAt Airalo, we're making it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access affordable mobile data in 200+ countries and regions around the world.Today, we're a team of 400+ people across 60+ countries, building a product used by travelers every...