Senior Software Engineer (Full Stack) at Atmen Solutions GmbH

Madrid, Community of Madrid, Spain -

Full Time

Start Date

Immediate

Expiry Date

10 Jan, 26

Salary

0.0

Posted On

12 Oct, 25

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

TypeScript, React, Node.js, PostgreSQL, AWS, Clean Code, Modularity, Testing, Maintainability, Distributed Systems, Communication, Mentoring, TDD, AI/ML, Sustainability, Certification

Industry

Software Development

Description

Atmen is a RegTech startup revolutionising green certification. Our SaaS platform helps energy-intensive industries (fuels, chemicals, materials) automate compliance and certification—cutting down time by up to 90%. We replace today's manual, costly, and unpredictable certification processes with continuous, technology-driven verification. Our mission? Making sustainable production simple, scalable, and cost-effective. Our HQ is in Munich, Germany, but we recently opened an office in Madrid as well. Tasks As a Senior Software Engineer, you will play a key role in shaping our product, working closely with our engineering and product teams to build robust, scalable, and maintainable software solutions. You will: Develop, test, and deploy full-stack software solutions, ensuring high-quality, maintainable code. Drive development from ideation to production, working closely with designers, engineers, and product managers. Lead by example by writing clean, testable code and supporting engineering best practices. Own features end-to-end—from architecture to implementation, deployment, and monitoring. Improve performance, reliability, and scalability to ensure our platform meets enterprise-grade standards. Mentor and collaborate with team members, fostering a culture of continuous learning and growth. Requirements 🏆 Must-haves 5+ years of professional experience in software development, preferably in full-stack roles. Proficiency in TypeScript, React, Node.js, PostgreSQL, and AWS. Strong software engineering principles: clean code, modularity, testing, and maintainability. Experience designing and maintaining scalable, distributed systems. Self-motivated and able to navigate a fast-changing startup environment. Excellent communication skills in English (both written and spoken). Master’s degree or equivalent experience in Computer Science, Engineering, or a related field. We encourage all qualified applicants to apply, even if you don't meet every single requirement. 🙏 Nice-to-haves Experience with Test-Driven Development (TDD) and end-to-end testing. Exposure to AI/ML or GenAI integrations. Related domain expertise: energy, certification, sustainability, or regulated industries. Experience working in a fast-paced startup environment. 💻 Our core technologies Frontend: React, TypeScript Backend: Nest.js (Node.js, TypeScript) Testing: Cypress, Jest Infrastructure: AWS (AWS CDK) Nx, GitLab CI ☑️ Job requirements Availability: Full-Time / Part-Time Valid working permit in Spain Fluency in English Willingness to regularly work in our office in Madrid, Spain. Benefits 🛠️ How we work Asynchronous first: We minimise unnecessary meetings and document everything in Notion. Focus time & deep work: Meetings-free mornings + 1 in-office Team Day per week. Fast-paced, iterative development: We push to main frequently and release several times per week. Strong testing culture: Pragmatic test-driven development (TDD), heavy use of E2E tests. 🤫 Why Join Us? 🚀 Impact: Be part of a small, high-performing team driving real-world sustainability impact. 🔀 Hybrid work and Madrid office: work from the office and from home. 📈 Growth: Join an early-stage startup with significant ownership and career growth potential. 🦾 Cutting-edge tech: Work on exciting challenges in automation, AI, and compliance tech. 🏄🏻‍♀️ “Well Pass” as an employee benefit - giving you unlimited access to most fitness centres ➡️ Apply for this position Send your CV + cover letter (optionally) + answer our screening questions. ⚖️ Atmen is an equal opportunity employer We embrace diversity and are committed to creating an inclusive environment for all employees and stakeholders. We are open to all candidates without regard to age, color, national origin, religion, gender or any other characteristics.

Responsibilities

As a Senior Software Engineer, you will develop, test, and deploy full-stack software solutions while ensuring high-quality, maintainable code. You will also mentor team members and improve the platform's performance and scalability.