EthiFinance is an independent European credit and sustainability rating agency, fully committed to sustainable finance. Founded in Paris, the group supports investors, banks, insurance companies and corporates with high-impact analysis, ratings, data and advisory services to help them navigate environmental and societal transformation.

Following the recent combination with ESG Book, EthiFinance is entering a new chapter of growth and international expansion. Operating under the EthiFinance brand, the combined group brings together complementary expertise in sustainability, credit ratings, data, analytics and technology to create a leading independent European player with general capabilities.

Today, the group brings together more than 300 experts across Europe, the United States, India and Japan, serving more than 500 clients and providing coverage on more than 10,000 companies worldwide. This unique combination of financial expertise, ESG intelligence and technology enables us to support financial institutions and corporates in an increasingly complex and fast-evolving market environment.

As the sustainable finance market continues to evolve, EthiFinance is building a strong European alternative that combines deep local expertise with international reach, helping clients better understand and manage both financial and non-financial risks.

Context

We are looking for a Senior Software Engineer to join our Technology team and contribute to the ongoing development of our sustainability data platform.

Reporting to an Engineering Manager, you will play a key role in designing, building and improving the systems that power our products and services. Working closely with product managers, engineers and other stakeholders, you will contribute to the development of scalable,



reliable and secure solutions while supporting the continuous evolution of our technology landscape.

This role offers the opportunity to work in an international and collaborative environment, where technology, innovation and sustainability come together to support the future of sustainable finance.

Key responsibilities

Software Development & Architecture

- Design, develop and maintain scalable software solutions supporting our SaaS platform.
- Contribute to the architecture and evolution of distributed and cloud-native systems.
- Build high-quality, secure and maintainable code following engineering best practices.
- Participate in technical design discussions and architectural decision-making.
- Develop and maintain APIs and backend services.
- Contribute to cloud infrastructure, deployment automation and CI/CD pipelines.
- Support the reliability, performance and scalability of production systems.
- Work with containerized environments and modern cloud technologies.
- Collaborate closely with Product, Data and Engineering teams to deliver business value.
- Participate in agile ceremonies and contribute to planning and prioritisation activities within your squad.
- Support cross-functional initiatives and technical projects across the organization.
- Promote engineering excellence and knowledge sharing within the team.
- Provide guidance and mentoring to junior team members.




- Contribute to code reviews and engineering standards.
- Drive continuous improvement of development processes, tools and ways of working.
- Stay up to date with emerging technologies and industry best practices.

Profile required

- 5+ years of professional experience in software engineering.
- Strong experience with backend development (Golang, Java, C#, Python or similar technologies).
- Experience designing and delivering scalable software solutions in a cloud environment.
- Solid understanding of API design and distributed systems.
- Experience with CI/CD practices and infrastructure automation.
- Familiarity with Docker and ideally also Kubernetes.
- Strong problem-solving and analytical skills.
- Ability to work effectively in cross-functional and international teams.
- Fluent English is required.

Nice to have:

- Experience with event-driven architectures, microservices or Domain-Driven Design (DDD).
- Experience with Google Cloud Platform (GCP).
- Experience with AI-enabled or agentic development approaches.
- Experience with AngularJS or full-stack development.

Why Join Us?

- Join a fast-growing international group at the intersection of finance, sustainability and technology.
- Contribute to products that support more transparent and sustainable financial markets.
- Work alongside talented colleagues in a collaborative and inclusive environment.
- Enjoy significant autonomy and ownership in your role.
- Access learning and development opportunities to support your career growth.
- Benefit from a hybrid working model and international exposure.
- Hybrid working model (Minimum on-site presence requirement per month)
- Location: London, Frankfurt, Madrid or Granada

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📌 Senior Software Engineer (Madrid)
🏢 EthiFinance
📍 Madrid