Sr. Frontend Developer

Your mission

• Collaborate in the discovery, design, and planning of new features
• Build and maintain a large-scale web application: debug, test, optimize, and ship code
• Work closely with UI/UX, product managers, and QA in a cross-functional agile team
• Bring insights into user needs and help evaluate potential solutions during product discovery
• Assess tradeoffs between technical approaches and align them with business and product goals
• Contribute to front-end architecture decisions and help modernize our tooling

Your profile

• Several years of professional front-end development experience (typically 5+ years), across multiple projects
• Strong expertise in HTML, CSS, JavaScript (ES6+), and (for tooling)
• Hands-on experience with (or similar UI libraries like React, Angular, or Svelte)
• Familiarity with modern web development principles (SOLID, SRP, SOC, DRY)
• Comfortable with Git and solid command-line skills
• Proactive, detail-oriented, and committed to delivering high-quality user experiences
• Strong written and spoken communication skills in English

Bonus Skills

• Experience with large-scale front-end architecture and design patterns
• Knowledge of backend frameworks in Python (e.g., FastAPI)
• Basic familiarity with PostgreSQL
• Growth mindset and appetite for continuous learning
• Exposure to AWS, Docker, or DevOps practices
• Interest in AI-driven software development lifecycle improvements

Why us?
Work with real impact

Join a mission-driven sustainability-tech company where your work delivers measurable results. You help corporations identify, prioritize, and monitor ESG risks and opportunities that truly matter.

Fair, transparent compensation

A yearly reviewed salary, aligned with the market median, and a defined growth range so you always know how your role and compensation can grow.

A truly diverse, international team

Work alongside colleagues from more than 25 nationalities, with a genuine 50/50 gender balance across the company. Different perspectives make better decisions.

Flexibility that respects your life

Design your weekly schedule together with your team. We trust you to organize your time and focus on outcomes, not hours.

Daily food perks

11€ per working day as a meal allowance, plus food and snacks at the office to fuel collaboration and shared moments.

Wellbeing beyond work

Fitness allowance or access to Urban Sports, because taking care of yourself is key to building something sustainable together.

Support for growing families

Monthly kindergarten stipend for parents with children under 3 years old, because peace of mind at home makes a real difference at work.

Health and pension plan

Private health insurance for you and your family, plus a pension plan where the company matches and doubles your personal contributions.

Continuous learning culture

Frequent training, a dedicated conference budget, and full access to O'Reilly so you can keep raising the bar and stay at the top of your craft.

Equipment that fits your way of working

Choose the setup that works best for you (Mac or Linux), so nothing slows you down.

About Us
Join Datamaran: The Pioneers of Smart ESG Solutions.
At Datamaran, we are revolutionising how the world's most influential companies navigate their Environmental, Social, and Governance (ESG) responsibilities. Our AI-powered SaaS platform empowers organizations to integrate ESG into their core strategies, driving meaningful impact at scale. Trusted by global industry leaders like Bridgestone, Dell, Kraft Heinz, Cisco and PepsiCo, and endorsed by leading regulators in Europe and North America, Datamaran is at the cutting edge of ESG technology.

Since 2014, we've been on a mission to deliver world-class solutions that enable businesses to align with stakeholder expectations, meet regulatory requirements, and enhance their ESG performance. Our platform helps senior executives make data-driven, evidence-based decisions, simplifying complex ESG challenges with clear, actionable insights. Whether it's ensuring compliance or presenting a compelling ESG narrative to investors and boards, Datamaran is the trusted partner for sustainable businesses.

Our commitment goes beyond technology. We are deeply embedded in the global ESG community, hosting and sponsoring events, partnering with universities and service providers to address the skills gap, and running educational programs that connect forward-thinking leaders. We've produced an award-winning documentary series, New Heroes of Sustainable Business, highlighting visionary leaders shaping a more sustainable future to inspire others across industries and regions.

We're not just building cutting-edge technology and ESG-focused communities but a diverse, global team united by a shared passion for innovation, collaboration, and continuous learning. With over 100 team members across the UK, US, Spain, and the Netherlands, we bring unique perspectives and skills together to solve the ESG challenges of tomorrow, today. At Datamaran, we believe in empowering our people as much as our clients and offer career development and growth opportunities to all.

Following our successful Series C funding round late 2024, we're entering an exciting phase of growth, expanding across all departments and locations to scale our impact worldwide. If you're ready to drive change, inspire innovation, and help businesses shape a sustainable future, we'd love for you to join us.

Find out more about Datamaran's story, people, and culture in this short film: Datamaran 10 Years Video