Front-End Senior Engineer I/II

Job Title: Senior Frontend Engineer

Department: Product and Technology

Reporting to: Staff Engineer

Location: Hybrid. Valencia, Spain

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, 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 140 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 in 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 video:

Our growing and dynamic engineering team is looking for an energetic Senior Frontend Engineer to join one of our cross-functional product teams. The ideal candidate will bring a substantial depth of knowledge in front-end web technologies, will play a significant role in shaping the user experience and function of our web applications, and will not shy away from getting hands-on in back-end and API work as needed. She/He will also actively contribute to all stages of Datamaran User Centric product development and display a keen interest in latest innovative technologies such as generative AI.

In this integral position, we’ll look to you not only for your comprehensive technical knowledge in front end development, but also for your contribution to product discovery through brainstorming, problem-solving and alignment sessions with the broader team. Your experience will be crucial in guiding more junior engineers on your team, ensuring we build and deliver truly user-centric and innovative products.

A one thousand feet view of our tech stack:

• Our web application is built on vue.js, node.js and javascript
• Our data stores include ElasticSearch, MongoDB and PostgreSQL
• Our server side and data pipelines are built in Python and FastAPI
• Everything is hosted on AWS, on EC2 or in lambda functions

Responsibilities

• Contribute to design, build, and enhance Datamaran web application
• Work closely with UI/UX designers, product managers and other roles in an agile team to develop and implement new features
• Debug, deploy, and maintain large scale web applications
• Participate in product discovery phases, bring invaluable insights regarding user-needs and potential solutions

• Over 5 years of professional front-end development experience across several projects, with a focus on HTML, CSS, JavaScript (ES6+), Node.JS. Nice if you have some experience with Typescript
• Proven expertise with Vue.js (if you have experience with another frontend framework/library such as React, Angular, Svelte, etc.) and want to work with Vue, it might also be considered).
• Understanding of cross-browser compatibility, and accessibility standards
• Must have experience with source control systems like Git
• Self-driven, detail-oriented, with a strong commitment to quality
• Excellent communication skills in English, both written and verbal
• Embraces and promotes development best practices, such as SOLID, unit testing, CI/CD

Bonus points and nice-to-have

• Experience with web performance optimisation
• Some knowledge of backend frameworks in Python, like FastAPI, or demonstrable experience working with back-end technologies
• An appetite for learning new technologies
• Knowledge of PostgreSQL, Mongo DB and ElasticSearch
• Familiarity with DevOps and AWS, as well as Docker

If you are passionate about front-end development, agile methodologies and want to be part of a close-knit Scrum team, we would love to hear from you!

Note to recruiters:
Thank you for your ongoing interest in Datamaran but there is no need reach out to the Hiring Team, HR, Recruiting.... We receive hundreds of approaches from recruiters but would confirm here that we are all set. We will continue to scale Datamaran successfully through our internal recruiting team and team initiatives. We appreciate your cooperation!

• A salary above Spain-average for this position
• Flexible hours
• Hybrid working, with typically circa 3 days with the team in the Valencia hub
• 11€ per day meal-allowance + food and snacks at the office (and paellas!)
• Private health
• Private pension (company doubles your saving)
• Best equipment: choose between Mac or Linux
• Frequent training, budget for conferences, OReilly subscription
• Access to Urban Sports
• International environment (over 25 nationalities), with 50% of our leaders being women, and almost 50% of our tech team too
• Working in a climate-tech company, helping corporations to identify ESG risks