Sr. Full-Stack Software Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Full Stack Software Engineer based in Spain. Join a high-growth fintech and cryptocurrency environment where your engineering expertise will help power secure, scalable, and high-volume financial transactions. As a Full Stack...

Join Vonage and help us innovate cloud communications for businesses worldwide! Why this role matters: We’re seeking a Java Software Engineer to join our Cloud Engineering team and help drive innovation across the Vonage Video Platform. This role will focus on enhancing our PaaS backend systems, improving cloud resource control and provisioning, and...

ABOUT SINCH Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch's Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email. Whether you need to verify users or craft omnichannel campaigns,...

This position is listed on behalf of a partner company. Our partner is looking for a Full Stack Engineer based in Spain. As a Full Stack Engineer – AI Systems, you will build production-ready AI applications that transform how people manage their emails, calendars, notes, and everyday tasks. You will work at the intersection of full-stack engineering and...

Fullstack Engineer – Series B AI Startup | Spain (100% Remote) I’m partnered with a fast‑scaling AI startup, fresh off a Series B raise, looking for an early hire Developer to shape the next generation of their platform. You'll build the GenAI behind some of the products that you use every single day. This is a role for hands‑on builders who...

Role - Video Conferencing- Full stack EngineerLocation - Remote (Spain/Poland/Germany/Netherlands)Type of employment - FTE (4 months)The objective of this project is to support vendor selection through an extensive discovery, evaluation, and prototyping phase. We are seeking contractors with deep expertise in video conferencing platforms who can help...

We’re launching a new team dedicated to modernizing and expanding one of our customer-facing tools — and we’re looking for a Full Stack Engineer to join us in building it from the ground up. This is a newly formed team, not a legacy product, so you’ll be part of shaping how it works from early on The current stack is Vue.js on the frontend and...

Full Stack Engineer - Java/Node.Js & ReactLocation: Remote - EuropeContract: 12 monthsRate: €250-€300 per dayStart: November 2026About the RoleWe are seeking an experienced Full Stack Engineer for an exciting 12-month remote contract with an established international organisation. You will contribute to the design, development and optimisation of...

Sinch is a Customer Communication Cloud company powering conversations across messaging voice and email helping businesses deliver personalized customer experiences at scale More than businesses including leading global tech companies rely on Sinch The Role We are building the next generation of conversational AI infrastructure As a Senior Java Software...