Top Software Engineer Jobs in Valencia

Design, build, and optimize scalable, secure payment services. Write clean, testable code, troubleshoot production issues, improve system performance and reliability, contribute to product vision, and mentor junior developers within cross-functional teams.

Build and maintain payroll integrations by reverse engineering web and mobile apps. Improve shared libraries and frameworks, collaborate with product and data teams, and own end-to-end integration solutions that power the real-time income data platform.

The Software Engineer will join a product squad to develop and maintain functionalities on the 360Learning platform, focusing on JavaScript technologies and clean architecture.

As a Software Engineer I, you will design and develop backend systems for Affirm's servicing platforms, ensuring operational excellence and collaborating with various teams while meeting project goals.

The Senior iOS Engineer will lead key engineering decisions, write production code for the Speechify app, and enhance its architecture, focusing on user experience and product strategy.

The Software Engineer will design, develop, and maintain backend APIs, oversee API performance, and collaborate with cross-functional teams while focusing on user experience and scalability.

The Software Engineer will focus on data collection and infrastructure for AI model training, collaborating with scientists to enhance data acquisition processes.

As a Software Engineer I specializing in Backend development, you will help build and maintain systems for scheduling repayments, ensuring reliable performance and contributing to team goals through collaboration and code quality.

As a Staff Software Engineer, you'll shape technical strategy, build integrations and services, lead operational processes, and mentor your team, ensuring high-quality code and fostering collaboration across teams.

As a Staff Full Stack Software Engineer, you'll guide technical strategy, mentor engineers, and ensure quality in full stack development while collaborating across teams.

As a Software Engineer at Octopus Energy, you'll collaborate across teams to develop internal tools and MVPs, optimize processes, and automate tasks, all while adapting to fast-paced, changing environments.

Lead the Developer Experience team to build internal tools, CI/CD and GitOps workflows, and AI-assisted developer tooling. Improve provisioning, deployment, and environment setup, reduce operational toil, partner with Platform/SRE/Security/FinOps, and measure impact of tooling.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.

Seeking software engineers with at least 2 years of production backend experience, interested in crypto and blockchain technologies, for roles with portfolio companies.

The Software Engineer role involves developing high-quality web and mobile applications, collaborating with cross-functional teams, and ensuring core engineering practices while maintaining a strong user focus.

Develop and maintain backend services and platforms for Wi‑Fi network design and optimization. Contribute to architecture, implement scalable microservices on AWS, work with device data and APIs, debug production issues, collaborate with cross-functional teams, and mentor junior engineers.

Design, build, and operate agentic AI systems and evaluation frameworks from prototype to production. Own AI features with focus on observability, cost, reliability, and failure recovery. Collaborate with product and domain teams to identify high-impact AI use cases and create org-wide patterns, tooling, and standards. Manage operational economics of AI systems and ensure scalable, serverless deployments.

Build backend services and APIs to manage lifecycle of Qdrant Cloud clusters (provisioning, scaling, upgrades, backups, auth). Collaborate across teams, investigate production issues, and improve reliability, scalability, and usability of the cloud platform.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

The role involves building self-service platform services using Go, automating operational workflows, scaling Kubernetes, and ensuring reliability in cloud environments.

As a Software Engineer, you'll develop software for Ceph and distributed storage, collaborating with a global team to enhance cloud solutions.

The role involves designing and building AI-focused research tools, optimizing performance, engaging with customers, and scaling product features quickly.

The Backend Engineer will design scalable infrastructure for AI research tools, collaborate on optimizing system performance, and own evaluation pipeline automation.

Build and maintain backend-first features and integrations for Triptease's marketing channels. Work across the full stack (primarily backend), design scalable distributed systems, implement CI/CD on cloud platforms, collaborate closely with product teams, pair program, write tests (TDD), and contribute to squad strategy and product quality.

Canonical is hiring a Software Engineer to develop features for Kubernetes, focusing on operators and integrations while collaborating in a distributed team.