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Urgent! Senior Full-Stack Developer (React / Node.js) (m / f / x) Job Opening In Madrid – Now Hiring osapiens
Department:
Business Partner Transparency Employment Type:
Permanent - Full Time Location:
Madrid Description
As a Senior Full-Stack Developer, you’ll play a key role in shaping the future of Business Partner Transparency (BPT) within our osapiens HUB.
This enterprise-grade platform helps companies comply with critical ESG regulations like: The German Supply Chain Due Diligence Act (LkSG) – ensuring suppliers uphold human rights and environmental standards.
The Whistleblower Directive – providing secure, anonymous reporting channels.
The Corporate Sustainability Due Diligence Directive (CSDDD) – upcoming EU-wide sustainability compliance.
Our osapiens HUB is a modern, enterprise-grade development platform that enables businesses to build powerful applications without worrying about infrastructure, scaling, or failover.
You’ll help develop and refine this cutting-edge, serverless ecosystem while delivering meaningful solutions for international clients.
This role is based in Madrid, where you'll collaborate with a talented, forward-thinking team.
We embrace a hybrid work model, with three days a week in the office, ensuring the perfect balance between in-person collaboration and remote flexibility.
Key Responsibilities
Design, build, and optimize full-stack features using modern front-end and back-end technologies, ensuring scalability and maintainability.
Develop and enhance innovative software solutions that automate complex compliance workflows for businesses of all sizes.
Collaborate closely with product managers, designers, and engineers in small, agile squads (5-7 people) to define, refine, and implement features.
Ensure high-quality, secure, and efficient code through rigorous reviews, automated testing, and continuous integration/deployment (CI/CD) practices.
Own the architecture and design of JavaScript-based solutions, optimizing for performance, reliability, and user experience.
Contribute to technical strategy and decision-making, identifying opportunities for innovation and process improvements.
Mentor and support junior developers, fostering a culture of learning and technical excellence within the team.
Skills, Knowledge and Expertise
Strong experience in full-stack development with a focus on React.js, Node.js, JavaScript, and TypeScript.
Expertise in web services development and integration (REST, GraphQL, etc.).
Familiarity with Git for version control and collaboration.
Strong product mindset – you think beyond code, considering user experience, business impact, and scalability.
Agile experience – comfortable working in sprints, participating in stand-ups, and iterating quickly.
Excellent communication skills in English (C1).
Spanish is a bonus but not necessary.
Benefits
A purpose-driven mission with and for global industry pioneers in tackling complex challenges Room for creativity through collaborative teamwork and an open communication culture Flexibility and team bonding with our hybrid work options Fuel for your growth journey, both personally and professionally Sustainable mobility options, promoting eco-friendly commuting solutions Fun team events and outings with our global teams Inspiring workspaces in Madrid and beyond
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Unlock Your Senior Full Potential: Insight & Career Growth Guide
Real-time Senior Full Jobs Trends in Madrid, Spain (Graphical Representation)
Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph below. This graph displays the job market trends for Senior Full in Madrid, Spain using a bar chart to represent the number of jobs available and a trend line to illustrate the trend over time. Specifically, the graph shows 86185 jobs in Spain and 26822 jobs in Madrid. This comprehensive analysis highlights market share and opportunities for professionals in Senior Full roles. These dynamic trends provide a better understanding of the job market landscape in these regions.
Great news! osapiens is currently hiring and seeking a Senior Full Stack Developer (React / Node.js) (m / f / x) to join their team. Feel free to download the job details.
Wait no longer! Are you also interested in exploring similar jobs? Search now: Senior Full Stack Developer (React / Node.js) (m / f / x) Jobs Madrid.
An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at osapiens adheres to the cultural norms as outlined by Expertini.
The fundamental ethical values are:The average salary range for a Senior Full Stack Developer (React / Node.js) (m / f / x) Jobs Spain varies, but the pay scale is rated "Standard" in Madrid. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.
Key qualifications for Senior Full Stack Developer (React / Node.js) (m / f / x) typically include Informática Y Tecnología and a list of qualifications and expertise as mentioned in the job specification. Be sure to check the specific job listing for detailed requirements and qualifications.
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Before the Interview:To prepare for your Senior Full Stack Developer (React / Node.js) (m / f / x) interview at osapiens, research the company, understand the job requirements, and practice common interview questions.
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