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Salary
≈ $53k – $97k per year (Estimated)
Location
In office (Paris)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 7, 2026. First seen by Alion on Aug 1, 2026.

Overview
Company
Impact
Profile match
Quantis is a leading environmental sustainability consulting firm that drives sustainable transformation to operate within planetary boundaries.

As a Senior Software Engineer at Quantis, you will develop digital products that help companies to measure and reduce their environmental impact.

Joining the Quantis digital team means:

· As a member of a small, dynamic, and agile team, you will be working with cloud-ready technologies such as Java, Python, JavaScript, PostgreSQL, Docker, Terraform, CI/CD, etc.

· You will ensure our software quality through code reviews and pair programming.

· You will deliver value through frequent releases.

· You will exchange and share with the team on diverse topics such as matrix inversion, graph traversal, the impact of manure on global warming, and various methods of moving data through pipelines.

· You will work with top sustainability leaders and experts to translate their insights and expertise into software.

WHY YOU’LL LOVE QUANTIS

Quantis, a BCG company, is a leading sustainability consultancy helping organizations address complex environmental challenges. For two decades, our expert team has partnered with organizations across the globe to bring sustainability into strategy, decision making, and action. We guide companies from ambition to action by uniting the latest science with strategic insights, helping them navigate complexity, make progress on sustainability priorities and create lasting value.

United by a shared commitment to making meaningful progress, our 250+ professionals embody a unique, collaborative culture that we call the Quantis Spirit. We are innovative. We are impact-oriented. We are science-driven. We are Quantis.

Learn more about Quantis and our mission.

ARE YOU READY TO BUILD DIGITAL SOLUTIONS FOR A SUSTAINABLE FUTURE?

· You’re eager to apply your software engineering skills to our mission of aligning businesses with Planetary Boundaries and motivated by helping companies achieve their sustainability objectives.

· You’re a versatile and solution-oriented software engineer, passionate about design, architecture, and emerging technologies.

· You’re collaborative, service-oriented, and enjoy supporting your peers.

· You’re naturally curious and continuously seek to learn and improve.

· You bring significant experience as a Senior Software Engineer, ideally with a background in software design and development.

· You communicate clearly and effectively in English and French, both in writing and verbally.

Additional preferred skills:

· Proficiency in software craftsmanship.

· RESTful API design.

· Knowledge of standard services provided by cloud providers.

SOME OTHER DETAILS TO CONSIDER

· Contract: Permanent

· Location: Paris

· Optimal start date: As soon as possible

· Frequent collaboration with other Quantis branches (Switzerland, Italy, Germany, US) via web-conference

· Ability to travel occasionally for internal meetings

Unlocking the Potential of All Quantisians

At Quantis, Unlocking Potential means empowering our employees to thrive, enabling them to drive our mission and manifesto forward-creating meaningful impact for people and the planet.

We aim to achieve this by nurturing a culture rooted in collective action, and shared purpose, where diversity is cherished, inclusion is lived, mental wellbeing is supported, and opportunities are open to all.

This extends to our clients, their clients, and their entire value chain as sustainable thinking and collective representation are integral components of our purpose to transform the way that businesses operate.

This is how we commit to our people, live our manifesto, and shape a sustainable future - together.

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