backend engineer

Merkle, a dentsu company, is hiring a Junior Java Software Engineer to join our Barcelona community. You will design and implement Java backend services in an agile team, focusing on code quality and test-driven development.You will work across the development lifecycle, cover RESTful services, ORM with SQL, and collaborate with experienced engineers to...

Dow Jones is seeking a Senior Software Engineer to design, build, and operate scalable backend services powering product experiences and internal tools. You will lead complex features, improve performance and observability, and collaborate with cross-functional partners across engineering, product, and QA.The role requires 4–6+ years in backend or platform...

WorldFirst is seeking an experienced Infrastructure Engineer to design and deploy scalable data center infrastructure and ensure high availability for payment systems. You will evaluate performance and security considerations while coordinating with cross-functional teams to implement robust solutions.The role involves analyzing production incidents,...

The mission of Speechify is to make sure that reading is never a barrier to learning.Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products...

FledgeWe are a boutique Talent search firm connecting exceptional Talent with the most innovative companies in the AI and software development industries across EMEA. Our clients are among companies with innovative products that have a positive impact on our societies, and we present them with a solution model between fine consulting and flexible recruitment...

F1RST Digital Services procura IT Engineer Spec IV (Java) para atuar com Blockchain e Web3. Você colaborará com equipes globais do Santander, definindo requisitos, desenvolvendo especificações e orientando sobre arquitetura segura e escalável.O papel exige experiência prática em Ethereum/EVM, Solidity, Hardhat ou Foundry, e desenvolvimento de back-end...

Product Enablement is growing!We're looking for one Mid or Senior Backend Engineer to join Product Enablement. Alongside the data fixes and developments we already deliver, the team will take on bug handling. That gives the platform development teams more room to focus on the roadmap.Why this change?Moving bug handling into Product Enablement lets the...

Cheiron just raised an $8 million seed round led by Menlo Ventures to build the operating system for drug programs.Company OverviewIn July 2026, Cheiron announced an$8 million seed round led by Menlo Ventures, bringing total funding to$13 millionto date, with the backing and strategic support of industry veterans including Moderna co-founder and MIT...

We are bsport. The place to be!bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success.Since we launched in 2019, we have already achieved the following:- We’ve built a community of...

Technology alone does not create impact-the right teams do. Founded in 2018, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and Al enablement.We are a fast-growing team of 340+ engineers and consultants across Europe (UK, Spain,...

Betsson Group in Málaga is seeking a Senior Backend Software Engineer to join our Development team. You will design and build distributed backend services using .NET, driving containerization and cloud migration while collaborating closely with product teams.You will contribute to scalable, reliable, and observable systems, participate in architecture...

PrimeIT España busca profesionales con al menos 5 años de experiencia en .NET moderno, orientados a backend y servicios distribuidos. La posición contempla trabajo remoto desde Madrid con visitas a oficina al menos una vez al mes, y posibilidad de movilidad para proyectos nacionales e internacionales.La empresa ofrece plan de carrera, formación continua...

Haddock seeks a seasoned integrations engineer to own and scale data integrations, collaborate with customers, and drive architecture decisions. You will contribute to building observability, data pipelines, and AI-powered workflows within a fast-paced startup. This hybrid Barcelona role emphasizes autonomy and impact.You will work closely with product and...

Help Us Build The Future of Travel At Airalo, we're making it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access affordable mobile data in 200+ countries and regions around the world. Your Next Destination * Location: Remote, anywhere in Spain or the UK. * Contract: o Spain:...

En Vermont Solutions buscas incorporar un/a Backend MLOps Engineer con entre 4-5 años de experiencia, para participar en la evolución y operación de una plataforma corporativa de MLOps.Todas las habilidades, cualificaciones y experiencia relevantes que necesitará un candidato seleccionado se enumeran en la siguiente descripción.Buscamos un perfil con...

Our Campaigns & Rewards - Product Development team in Malaga is growing, and we are now looking for a Backend Software Engineer to join!Engagement at Betsson Group ensures our customers come back for more. It's all about loyalty. We provide a world class customer experience beyond the gameplay featuring Tournaments, Dynamic personalized campaigns, and much...

Key ResponsibilitiesDesign and Implement Infrastructure Solutions: Architect and set up new Internet Data Centers (IDCs) to meet scalability and performance requirements.Analyze and Optimize Production Issues: Investigate and analyze real-world production cases, such as performance bottlenecks or system inefficiencies, to derive actionable insights and...

We're seeking exceptional Backend Product Engineers to build the infrastructure powering the future of AI-driven email marketing. You'll design and scale systems that handle millions of emails, real-time content generation, and seamless integrations. Full-time position based in Barcelona with competitive compensation.Migma.Ai transforms email creation from a...

About the opportunityBanking Foundations domain mission for N26 is to provide secure and compliant banking services that are frictionless and innovative for customers, while enabling efficient operations and informed decision-making for our staff.We achieve this through robust customer identity verification, proactive risk management, and seamless customer...

Ball Corporation is seeking a Back End Engineer to support and improve back-end production processes across regional manufacturing sites. This role provides technical expertise for installations, audits, troubleshooting, maintenance optimization, and capital projects while partnering with plant leadership, engineering teams, suppliers, and global...