backend developer English-speaking jobs in Oviedo

Aimsun is an international leader in digital mobility solutions for transportation authorities, highway agencies, public transit operators and consultancies. Aimsun’s simulation and predictive data analytics help customers to understand transportation network performance, to predict its future evolution, and to support decision making.

Company DescriptionHype Energy + is an innovative functional products company driven by creativity, passion, and a commitment to redefining the consumer experience. Having evolved from a legacy energy drink brand under the leadership of former Formula 1® driver Bertrand GACHOT since 2000, Hype Energy + delivers premium European-quality products globally.

POSITION SUMMARYRapidTrials is hiring an experienced Clinical Research Nurse (RN) to support prescreening and recruitment activities for a Phase III MASH (Metabolic Dysfunction-Associated Steatohepatitis) clinical trial. This part-time, freelance role is based in Madrid.

We are:Wizeline, a global AI-native technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.

About the RoleWe are looking for a highly skilled Compiler Engineer with strong experience in C/C++, Linux development, and LLVM-based compiler toolchains. The ideal candidate will work closely with our engineering teams to enhance and optimize compiler technologies for advanced hardware architectures.

About the Role: We are seeking a dynamic and technically skilled Technical Solutions Engineer to join our team specializing in Battery Energy Storage Systems (BESS). This role is pivotal in designing and delivering tailored technical solutions that meet customer requirements while ensuring compliance with industry standards.

We’re partnering with a leading manufacturer of industrial plastic parts and components to find an experienced Shift Leader for their injection molding operations. Your MissionLead and inspire a high-performing team in the injection area, ensuring production goals are met in quality, quantity, and timing.

We’re expanding our Sales team and looking for ambitious individuals who want to build a long-term career in tech sales. If you’re enthusiastic, enjoy connecting with people, and have at least one year of customer-facing experience, this is your entry point into SaaS sales.

Job SummaryThe Sales Applications Specialist will be responsible for sales, promotion and technical support to the customers in order to guarantee the right performance of both reagents and instruments, providing our customers with solutions that adapt to their changing needs, creating a relationship of trust that will bring value to the Company in the medium and long term.

To accelerate this transformation, we are seeking a GMP Validation & Compliance Specialist with strong experience in pharmaceutical excipients, GMP consulting, or validation roles in highly regulated environments. This position offers a unique opportunity to join a multinational organization and lead the transition towards full GMP compliance for a new production area.

**This is initially a Fixed Term Contract until 30th June 2026 - Hybrid in Zaragoza**Responsibilities• Design and develop new techniques to compress Large Language Models based on quantum-inspired technologies to solve challenging use cases in various domains.

Role Summary: The Lead Backend Engineer will oversee the backend architecture and development for the project. This individual will be responsible for making high-level design choices, leading a team of backend engineers, and ensuring the creation of resilient, scalable, and secure services. Key Responsibilities: ● Define and drive the backend technical roadmap and architectural vision.

Moncler Group is specialized in luxury clothing and accessories. We are a Group characterized by experientiality, inclusiveness, sense of belonging to a community and contamination of different meanings and worlds. Our goal is that Moncler’s social channels not only communicate our identity or our products, but that they move to meet the interests, tastes and emotions of our community and beyond.

Senior Backend Engineer (Java) Hybrid | Advanced English | Relocation Available (within each country)Salary: Competitive, aligned to experience (Contractor model)One of LATAM’s fastest-growing global FintechsAbout the OpportunityWe are partnering with one of the fastest-growing Fintech companies in LATAM—now global, hyper-scaling, and redefining the digital wallet and financial services ecosys

Appointment Booker / Business Development Representative Use your Norwegian language skills to build a sales career in the sun. As a Business Development Representative in our Málaga office, you will book high-quality meetings with decision-makers across the Nordic construction market. You will join an ambitious team with clear targets, strong support, and real opportunities to grow.

Are you a detail-oriented individual with a passion for research and a good understanding of national and local geography? This freelance opportunity allows you to work at your own pace and from the comfort of your own home.

Sales & Operations Senior ManagerBiotech company with extend experience specialized in preventive solutions. With presence globally, it is recognized for innovation in injectable liquids, biogenetics and large molecules.

About the RoleWe are seeking an experienced MEP Cost Estimator to join our global building design and engineering team. This role is critical in accurately forecasting and analyzing costs for mechanical, electrical, and plumbing (MEP) systems across complex, large-scale projects.

We began as a small team of passionate developers and have rapidly grown into a dynamic company specializing in advanced software systems for the medical industry. D. med Software specializes in providing cutting-edge cybersecurity solutions tailored specifically for the embedded systems in the medical industry.

NTT DATA is a multinational consulting firm that provides technology, business, strategy, application development and maintenance solutions, and is recognized as a benchmark in the consulting industry.