Empleos de senior javascript engineer en Valencia

AI / Software Solutions Engineer (m/f/d) Location: A Coruña, Bilbao, Gijón, Granada, Madrid, Reus, Sevilla & Valencia, es Descripción de la empresa T-Systems es parte del grupo Deutsche Telekom, con unos 30.000 empleados en todo el mundo. Creamos tecnología con propósito para generar un impacto positivo en la sociedad. Buscamos talento curioso, con...

About The TeamThe Product Metrics team owns the collection, storage, and serving of metrics collected from customers' ClickHouse instances. As a part of the team you will be responsible for designing, building, operating and maintaining components of the petabyte-scale platform that stores trillions of records and processes millions of new events every...

Kraken is seeking a Senior Software Engineer to lead the Consumer team, owning the architecture of Rust backend services powering trading, payments, and crypto experiences. You will drive end-to-end ownership, mentor engineers, and collaborate with product leadership to shape roadmaps.A strong emphasis on AI-assisted development and high-quality user...

Telecare is seeking a Senior Systems Engineer – Hybrid Cloud to lead the design, development and operation of our hybrid cloud infrastructure with emphasis on cost-effectiveness, availability, performance, security and scalability.The role requires Azure expertise, server/storage hardware know-how, SRE mindset, and ability to collaborate across teams to...

Alvatross busca un/a Desarrollador/a backend Senior con Java y Spring Boot para trabajar en proyectos OSS en el sector de telecomunicaciones. Participarás en arquitecturas de microservicios y en iniciativas internacionales, con acceso a formación y herramientas modernas.Trabajarás 100% remoto desde España, con horario flexible (entrada entre 8:00 y 9:00)...

Alpaca is seeking a Senior Software Engineer on the Clearing team to build mission-critical, non-user facing infrastructure that powers broker-dealer operations. You will help expand our self-clearing capabilities and enable new product integrations while maintaining high reliability.The role emphasizes ownership, technical excellence, and collaboration...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Software Engineer – Future Hiring Program based in Spain.Join a forward-thinking engineering team delivering high-impact software solutions for global enterprise clients across diverse industries.As part of a...

UL Solutions in Spain is seeking a Senior Project Engineer - Heat Pumps to lead certification, testing and evaluation of residential and commercial heat pump technologies, guiding projects from engagement to final approval.You will act as a technical expert, develop innovative test methods, apply EN and ISO standards, coordinate laboratories, and collaborate...

Elastic is seeking a Senior Information Security Infrastructure Engineer to own the data pipeline for security telemetry. You will ingest, process, and secure telemetry across Elastic clusters, ensuring end-to-end data quality and reliability.The role focuses on production-grade Elasticsearch operations, Kubernetes-based deployment, and automation using...

Scrambly S.r.l. is seeking a Senior Backend Engineer to help build the core systems behind Scrambly. You'll work on user-facing product systems and the internal platform, solving scalability challenges for a global, adtech product.You'll design and maintain scalable Node.js/NestJS RESTful APIs, mentor engineers, and collaborate with Product, Design and QA to...

Trading 212 Ltd. is seeking a Senior Frontend Engineer to own complex frontend features across web and mobile. You will design and evolve React and React Native systems, build durable abstractions, and tackle rendering and performance bottlenecks with TypeScript.Collaborate with product, backend, and QA to deliver scalable user experiences while maintaining...

UserWise, LLC is seeking a Principal Server Engineer to own our backend for live games with 1M+ DAU. You will design scalable Go/Python services, extend Nakama core game services, and drive performance improvements across PostgreSQL and in-memory stores.You will lead investigations, optimize distributed systems, and ensure reliability in production. The role...

Swiftly, Inc. is seeking an experienced Platform Engineer to help build the infrastructure underlying our transit data platform.You will modernize cloud infrastructure, expand to a new AWS region, standardize observability, and enable AI-assisted development lifecycle with automated checks. This role is cross-functional, gathering requirements across teams...

CONVOTIS Iberia busca un/a Mobile / SDK Engineer especializado/a en iOS para desarrollar y armonizar SDKs orientados a recopilación de datos en dispositivos Apple. Trabajarás en Speedtest y Umlaut, asegurando soluciones robustas y reutilizables.Se valorará experiencia en SDKs y librerías, así como capacidad para colaborar en proyectos complejos. Oferta...

Parser is seeking a Staff Backend Engineer (Java) to join a strategic area of our systems. You will drive architecture, champion engineering standards, and deliver high-scale services with asynchronous messaging and low latency. You'll work within lean teams and harness AI tools to enhance productivity and quality.You will shape decisions end-to-end, own...

King seeks a Senior Audio Engineer to join the Game Production core systems team. You will own the audio runtime, editor tooling, and APIs, shaping 3D audio, routing, and mixer architecture across mobile targets.You will mentor others, improve workflows, and collaborate with game teams to deliver high-quality, sonically rich experiences. You will work in an...

Lever, Inc. is seeking a Lead Engineer/ Architect ( .NET ) in Spain to spearhead software architecture for an enterprise IoT asset tracking platform. You will balance hands-on coding with team leadership, shaping concurrent distributed systems using C# and .NET, and mentoring a global engineering team.Responsibilities include designing core platform...

Utopiadesign is seeking dynamic Structural Design Engineers to support luxury hospitality projects worldwide, including boutique hotels and private villas. You will develop structural design solutions that balance aesthetics with safety and code compliance.You will collaborate with architects, interior designers, MEP engineers and clients, report to a...

UL Solutions in Spain is seeking a Senior Project Engineer - Heat Pumps to provide technical leadership in testing, certification, and evaluation of residential and commercial heat pump technologies.You will support customers and colleagues across performance, energy efficiency, and certification activities while helping shape the future of heat pump...

Senior Software Engineer - Fully Remote | Upto $210/hrMercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.Position: Expert Senior SWEType: ContractCompensation: $150–$210/hourLocation:...