Top Tech Jobs & Startup Jobs in Valencia

Octopus Energy seeks passionate individuals to join their team and contribute to renewable energy efforts in Spain. This is a spontaneous application opportunity, encouraging candidates to send their CV and express their career aspirations.

The role involves designing, developing, and maintaining back-end services using Java and Spring Boot, collaborating with teams, and contributing to APIs in an Agile environment.

Own and scale core foundational services (identity/authentication and search), design and implement shared, high-throughput internal APIs in Go, ensure maintainability, security and testability, collaborate with product and engineering teams, and drive platform-wide best practices and developer tooling.

Design, develop, verify and simulate Attitude and Orbit Control Systems and GNC algorithms for satellite missions; build simulation tools, run verification campaigns, prepare technical documentation, and support projects from proposal through customer acceptance.

Seeking a Linux Systems Administrator to operate, maintain, and troubleshoot systems, participate in feature planning, and manage environments with a focus on customer service and technical expertise.

Manage inbound commercial B2B calls and account management for gold customers and partners. Identify and qualify prospects, track pipeline activity, prepare technical and commercial proposals, resolve customer inquiries, and make outbound calls as needed. Maintain client satisfaction and escalate issues when necessary.

Conduct discovery and audit sessions to analyze support workflows, ticketing systems, and KPIs. Identify automation opportunities and design scalable AI-driven solutions (chatbots, NLP classification, auto-triage, agent assist). Assess client platforms (Zendesk, Freshdesk, Intercom), produce AI readiness assessments and roadmaps, and deliver clear, data-driven recommendations for implementation and ROI prioritization.

Evaluate AI chatbots in Catalan (Spain) using voice mode: initiate conversations with predefined prompts, pursue goals, then rate and document the interaction in English. Work remotely on personal smartphone and laptop following provided guidelines and confidentiality rules.

The role involves developing simulation models, programming, debugging, and data analysis within a large-scale cloud microservices ecosystem.

As a Senior Backend Engineer, you will design, implement, and support backend microservices, improve system reliability, and integrate services within a high-load distributed system using Rust and other technologies.