Empleos de custom software engineer en Barcelona

We're Revolutionizing Energy to Change the WorldAt Octopus Energy, we're not your typical utility company.We're a team of passionate people working every day to make energy 100% renewable, accessible, and fair for everyone.We believe technology and innovation are key drivers of change.Our mission is to transform the way the world consumes energy breaking...

Job Description:Essential Job Functions:Contribute to software development projects by writing, testing, and debugging code, with an emphasis on complex and critical components.Collaborate with team members to meet project requirements, actively participating in design and code reviews.Provide technical expertise and support to team efforts, acting as a...

Multi-Wing is seeking a Sales Engineer for their Barcelona office, focusing on customer engagement and engineering collaboration to design optimal fan solutions. The role involves project management from concept to delivery and requires at least 2 years of relevant experience.The ideal candidate will have a degree in Mechanical or Industrial Engineering and...

Would you like to join an international team working to improve the future of healthcare?Do you want to enhance the lives of millions of people?Grifols is a global healthcare company that since **** has been working to improve the health and well-being of people around the world.We are leaders in plasma-derived medicines and transfusion medicine and develop,...

Smadex The teamYou will join our core engineering team, a collaborative group of 8 experienced engineers responsible for maintaining and evolving the real-time bidding (Open-RTB) auction system that powers our entire business. We foster a fast-paced, supportive environment where knowledge sharing is key. We value autonomy and will provide the platform for...

DescripciónSomos una Consultora de Recursos Humanos especializada en la captación de talento para organizaciones empresariales. En ISPROX tenemos el objetivo de seleccionar talento para las compañías que mejor cuiden el capital humano y tengan en el centro de sus políticas a las personas. Apostamos por estar cerca de nuestros clientes y candidatos con...

Join a leading AI hardware company – Software Engineer, Barcelona A fast-growing AI hardware company is expanding its software team, developing the tools and frameworks that enable customers to deploy AI applications on next-generation accelerator hardware. This role sits at the intersection of software, AI and hardware, working across low-level...

Who we are: Want to make an impact? Join our pack and come work (and play!) with us. We believe everyone deserves the unconditional love of a pet—and at Rover, our mission is to make it easier to experience that love. Founded in 2011, the Rover app and website connect dog and cat parents with loving pet sitters and dog walkers in neighborhoods across the...

Who Are WeAlpega is the trusted execution platform shippers and carriers across Europe rely on to plan, procure, and execute road freight - every day, at the speed the industry demands.We are 450+ people across European offices, working in product, engineering, commercial, and the teams that keep partners connected.In 2026, Alpega was named a Challenger in...

About SupersonikSupersonik helps B2B SaaS companies sell faster with AI-powered product demos. On a live video call, our AI Agent shares the screen to walk buyers through a personalized, interactive demo in any language. This lets teams skip long sales calls and focus on closing deals.We’re backed by Andreessen Horowitz (a16z) and work with leading SaaS...

Eng Radar / Thunes Software Engineer Thunes operates a global

Are you a Software Engineer with strong programming experience? AtPerk , we aren’t looking for "stack experts"—we want ingenious engineers who can select and implement the right tools to build world-class solutions. You will join our mission to redefine business travel, working hand-in-hand with our product teams to architect a platform that eliminates...

DescriptionDo you think like an engineer first, and a language specialist second? We are looking for engineers who want to build t he next generation of cloud-native financial technology. Our platforms run on .NET and Java, but we are not looking for C# or Java developers (or Python developers, or developers of any other language). We are looking for...

About SupersonikSupersonik helps B2B SaaS companies sell faster with AI-powered product demos. On a live video call, our AI Agent shares the screen to walk buyers through a personalized, interactive demo in any language. This lets teams skip long sales calls and focus on closing deals. We’re backed by Andreessen Horowitz (a16z) and work with leading SaaS...

Join a leading AI hardware company - Software Engineer, BarcelonaA fast-growing AI hardware company is expanding its software team, developing the tools and frameworks that enable customers to deploy AI applications on next-generation accelerator hardware. This role sits at the intersection of software, AI and hardware, working across low-level optimisation,...

Iqana is a Barcelona-based quantitative trading firm building systematic, risk-managed exposure to digital assets. We are registered with the CNMV and were the first firm in Spain authorized under MiCA to provide discretionary crypto portfolio management — which means our systems run real institutional capital under real regulatory scrutiny. We serve...

Job Summary This hybrid role is for an experienced software engineer with strong expertise in Java Springboot, microservices and Mongo DB building scalable services for enterprise systems in an international environment. The engineer will design develop and optimize cloud ready microservice solutions that enhance reliability performance and customer...

Our client are a semiconductor company looking for a Software Engineer to work on-site at their site in Barcelona Responsibilities: The software team is developing the tools and frameworks that enable clients to deploy AI applications on our hardware. We’re looking for software developers to work on all aspects of this, from low-level kernel...

REVER is a Barcelona based startup backed by Y‑Combinator. REVER's mission is very ambitious: change the way people buy by giving superpowers to shoppers. We are now obsessed on drastically improving the return experience both for the shopper and the e‑commerce. The challenge is massive: we want to change a $2.5 Trillion industry. For that we have a...

Syntrace builds conversational knowledge for institutional investors. We capture, organize and synthesize private conversations into source-backed knowledge a firm can build on. We are now hiring a Software Engineer, based in Barcelona. You will build across the stack in a small senior team where you own features end to end. Our core is event-sourced and...