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Senior Backend Developer - Node.js / TypeScript (m/f/x) Job Opening In Comunidad de Madrid – Now Hiring osapiens


Job description

Senior Backend Developer - Node.js / TypeScript (m/f/x) Department: Business Partner Transparency Employment Type: Permanent - Full Time Location: Madrid Description As a Senior Backend 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 Mannheim, 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 backend 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 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 backend development with a focus on Node.js 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).

German 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 Mannheim and beyond J-18808-Ljbffr

Required Skill Profession

It / Computing / Software


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Unlock Your Senior Backend Potential: Insight & Career Growth Guide


Real-time Senior Backend Jobs Trends (Graphical Representation)

Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph here. Uncover the dynamic job market trends for Senior Backend in Comunidad de Madrid, Spain, highlighting market share and opportunities for professionals in Senior Backend roles.

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Are You Looking for Senior Backend Developer Node.js / TypeScript (m/f/x) Job?

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The Work Culture

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:

1. Independence

2. Loyalty

3. Impartiapty

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5. Accountabipty

6. Respect for human rights

7. Obeying Spain laws and regulations

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osapiens interview tips for Senior Backend Developer   Node.js / TypeScript (m/f/x)

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Before the Interview:

Research: Learn about the osapiens's mission, values, products, and the specific job requirements and get further information about

Other Openings

Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

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