At Byld, we don’t just build businesses—we create impactful ventures in collaboration with top-tier corporations. Since 2017, we’ve been designing, validating, and launching companies that merge the best of entrepreneurial agility and corporate muscle to scale innovative, sustainable solutions.
Our newest venture, Nesty, was born to simplify parenthood and promote conscious consumption. Through a flexible rental model, Nesty allows families to access premium baby gear without the hefty upfront investment—helping them save money, reduce waste, and embrace a more sustainable lifestyle.
Parenting is expensive, short-term needs change fast, and unused gear often clutters homes or ends up in landfills. Nesty challenges this model by offering convenience, flexibility, and circularity to today’s families—bringing them the freedom to rent what they need, when they need it.
Join us to redefine the parenting experience and lead the way in circular consumption!
About the role
We are looking for a purpose-driven entrepreneur and business builder—someone with vision, grit, and strategic acumen. You should be experienced in launching and scaling businesses (ideally with B2C experience), passionate about sustainability, and energized by the opportunity to make a meaningful impact. A well-rounded profile with a solid grasp of marketing, growth, finance, and operations is essential to drive early-stage execution and scale-up.
Start Date
As soon as possible.
Contract Duration
Permanent
Responsibilities
We are looking for an exceptional Founder/CEO who will be responsible for:
Leading the vision and business strategy of Nesty, in collaboration with the founding team and Board of Directors.
Defining and executing a compelling Go-To-Market plan.
Driving early fundraising rounds (pre-seed/seed), including building pitch materials, networking with investors, and managing negotiations and closings.
Taking ownership of the company’s business model, financial strategy, and unit economics.
Building a high-performing, purpose-led team and shaping a culture rooted in impact, empathy, and innovation.
Overseeing and integrating core business functions: marketing, growth, operations, finance, and logistics.
Leading the soft launch and validating initial traction, ensuring scalability of operations.
Representing Nesty in public-facing roles with investors, partners, and the media.
Establishing strategic alliances and continuously exploring new channels and partners.
Monitoring KPIs and maintaining lean, agile execution.
Managing burn rate and runway while setting the foundation for future growth.
Keeping the Board updated on key milestones and strategic priorities.
Who are we looking for:
+5 years of relevant professional experience, with exposure to early-stage startups, especially in a founder or leadership role.
Demonstrated ability to take an idea from concept to execution—ideally with experience in marketplaces, consumer platforms, or circular economy models.
Hands-on knowledge of marketing, user acquisition, and growth strategies.
Strong understanding of financial planning, budgeting, and business operations.
Comfortable wearing multiple hats, from fundraising to customer development to logistics.
Experience in investor relations and fundraising is a strong plus.
Passion for building from scratch, with a hands-on attitude and high resilience.
A people leader—able to build and nurture a strong team and culture.
Bilingual in Spanish and English, with exceptional communication skills.
Deep alignment with Nesty’s mission of enabling more sustainable, flexible parenting.
Coachable, collaborative, and eager to learn from feedback and data.
Benefits:
This is a non-salaried role for the first 6 months, in exchange for a meaningful equity stake as co-founder. The expectation is to raise our first round during this period and set a competitive salary going forward.
A strong equity package (up to 35% for the entrepreneur team).
Full support from Byld—the leading Spanish Corporate Venture Builder—and access to its proven operational methodology and network.
The chance to create something truly new in a space ripe for innovation.
Access to mentors, corporate partners, and investors in Byld’s ecosystem.
An opportunity to build a company with global potential, from the ground up.
Flexibility to work in a hybrid format.
Be part of a purpose-driven project making life easier for families while contributing to a more sustainable future.
Departamento: Venture Portfolio
Jornada sin especificar
Otros contratos
Salario sin especificar
CEO - Ermine
Byld
Madrid, Madrid21 de marzo
We are looking for an entrepreneur to be the CEO of a startup revolutionizing the world of Audit 4.0 and control management for SMEs.
Who are we?
At Byld, we don’t just build businesses—we create game-changing ventures in collaboration with leading corporations. Since 2017, we’ve been designing, validating, and launching new companies, blending the best of the entrepreneurial and corporate worlds to develop scalable businesses with real impact.
Our latest venture, Ermine, was born from this vision. Built alongside Erhardt, Ermine is a cutting-edge SaaS platform that simplifies and enhances Risk Management, Audit Management, ESG Management, Quality Management, and Regulation & Standards. It centralizes everything in one place, automating evidence collection, ensuring traceability, and increasing operational efficiency—all while saving time, resources, and costs.
Many companies struggle with manual processes, scattered information, and compliance challenges, leading to inefficiencies and increased risks. Ermine eliminates these pain points, providing a seamless, automated, and integrated solution that empowers businesses to make smarter, faster, and more reliable decisions.
Join us in revolutionizing risk management and control!
About the role
We are looking for an entrepreneurial business leader with experience in growth, business, and technology, especially in SaaS business models. A digital-first professional with experience in scaling up a company internationally and a management track record.
Start Date
12/05/2024
Contract Duration
Permanent
Responsibilities
We are looking for exceptional Founder/CEO who will be responsible for:
Establish a clear company vision and direction as well as develop high-quality business strategies and plans together with the Board of Directors, ensuring their alignment with short-term and long-term objectives.
Build and manage a motivated team through an outstanding culture.
Driving growth, profitability, and company values as well as day-to-day operations to ensure they produce the desired results and are consistent with the overall strategy and mission.
Be the public face for Ermine.
Lead the fundraising activities, both public (I+D+i) and private (corporate strategic partners).
Manage our company’s position in the overall industry by partnership building and continuous market research on competitors.
Establish and take full ownership of the Go-To-Market plan and execution.
Manage revenue, expenses, and external financing to maintain the consistent growth of the business.
Oversee KPIs of the business.
Owning the operational budget and managing burn rate.
Keep the Board of Directors (Byld + Corporate Partners) informed on progress on strategic goals.
Spot risks to new product lines or sales channels and develop relevant responding plans.
Help with all technical issues raised by our clients, and negotiating solution plans.
Maintaining a deep knowledge of the markets and industry of the company.
Who are we looking for:
+8 years’ work experience, having held a managing position. Entrepreneurial experience is a plus.
You aspire to create an innovative business that will change how Audit 4.0 and control processes are developed today in SMEs and roll it out on an international scale together with an amazing team and partners.
You have an entrepreneurship mentality. Ability to think outside the box, to truly imagine and articulate a strategy to unleash the full market potential for the company. A self-starter and leader who assumes the risks and rewards of running an innovative, sustainable operation. We value people who have tried it :).
You can show experience leading the launch of best-in-class digital products.
You have a proven track record in B2B businesses, startups, and people management.
You have experience building and scaling organizations at Series A-B companies.
You can think strategically and operate successfully together with the rest of the team.
You are “coachable”, adaptable, and have strong leadership skills.
You have relevant and strong sales skills.
You have a proven track record managing a P&L.
You have experience hiring and retaining a good team.
You have empathy. You’re a good guy (that’s something really important and directly related to the success of our ventures).
You feel aligned with leadership by example. Able to motivate, inspire, and create an inclusive and positive work environment for all. Experience leading a team, with a willingness to invest in the coaching and development of your team members.
You hold exceptional communication and organizational skills. Able to communicate and listen effectively; great written, verbal, and presentation skills in both Spanish and English are a must.
You are passionate about the B2B SaaS business models and how technologies can enhance related processes.
Desirable:
You have knowledge or prior experience within the Audit 4.0 and control processes industry.
Having established a long network of contacts with professionals and companies who could be a potential client for Ermine.
Benefits:
A competitive salary.
A strong equity package (up to 35% for the entrepreneur team).
Becoming an entrepreneur with the support of the first Spanish Corporate Venture Builder and an industry-leading company, Erhardt.
Be part of Byld’s ecosystem: a team of teams that is either able to make pizza, prepare coffee, or build the next unicorn.
Actively participate in the disruption of the new era of Control Management.
Commitment and support of Erhardt and Byld’s liquid building team.
Experienced, motivated, and multidisciplinary team and board of directors.
The possibility to create a huge network within the startup and corporation ecosystems, being part of projects with big companies with a global impact.
A robust methodology and ability to launch new ventures that have given us the possibility to reduce risks in every venture we embark on.
Departamento: Venture Portfolio
Jornada sin especificar
Otros contratos
Salario sin especificar
Master’s graduate program: Business Builder Internship
Byld
Madrid, Madrid8 de octubre
Job description
If you have answered yes to the questions above, stay with us and keep on reading.
After 6 years in the corporate venture-building industry in Spain, we are launching our Master’s graduate program to provide an accelerated learning experience within the venture building world.
We are starting to recruit the next cohort of our Master’s graduate program Fix-Term Contract Builder passionate about creating new ventures with top corporates that will change our world at a challenging and fulfilling rhythm!
About the Job
Throughout the program, the selected candidates will learn about our venture building methodology and will work hand-in-hand with our Building team in our Insigths phase to understand market problems, trends, and possible solutions. In our Labs phase, candidates will learn how to validate a business concept from scratch, apply experiments, build MVPs, and implement pilots to learn from real-life experiences. Once our business concepts are validated, during the Ventures phase, we accompany the new venture through its set-up, go-to-market, and early growth challenges.
Our team of builders is the heart of Byld, the reason why they need to know about supporting, leading, and being part of the team of each company we build, from business to operations to marketing.
As part of this team, you will work hand-in-hand with builders specialized in “Business”, “Growth” and “Product”. This work dynamic creates synergies where everyone can learn from different fields and disciplines to become a jack of all trades: a 360º business builder.
You can find some good stories of what we do (and how we do it!) right here: https://byld.xyz/cases/
Role specifics:
Start Date: October-November 2024
Location: Madrid
Contract Duration: 6 months internship or apprenticeship contract.
Visa sponsorship: Not Available
Remote work policy: In-office - WFH flexibility
Spanish language: Required
Experience: 1-3 years
Monthly stipend: 1200 €
As a part of this program, you will:
Establish people-centric business strategies for our ventures, fusing the practices of design and strategy to structure the business impact of design at a strategic, operational, and organizational level.
Uncover user needs through research, develop deep insights, generate business concepts, and craft how people will interact with the products and services we build.
Design and build digital validation artifacts, as well as prototypes and final products, to validate our business concepts.
Unleash the power of venture building and our validation methodology using no-code tools and get out of the building to test any experiment as a true street fighter.
Pivot as often as the business model canvas requires to get the problem-solution fit as quickly as possible. Less is more and frugality is our best traveling companion.
To apply to this cohort, you need to fulfill the following requirements:
Be an early master’s graduate (or about to graduate) in any of the following fields: business, innovation, marketing, finance, entrepreneurship, technology, engineering, or any other relevant field.
Have full-time availability for 6 months.
Have 1 to 3 years of work experience in consulting, strategy, operations, innovation, or startup/fast-paced environment.
Some hard and soft skills that will make you successful in this role:
Be a social chameleon: having excellent communication skills, and ability to understand and collaborate with different stakeholders, from corporate managers and directors to entrepreneurs, opinion leaders, field experts, and potential customers, among others.
Have extreme curiosity, you are always up-to-date on the latest social, technological, and political trends. You love understanding issues and finding solutions for them.
Be tech savvy: you are at ease with tech tools like Slack, ClickUp, Notion, or similar tools for day-to-day work and collaboration. You have a basic understanding of no-code tools and you’re a fast learner. If you know about Adalo, Figma, Card.io, Airtable, or any toolkit you can bring to the table is more than welcome.
You have a user-centric lover approach/mindset and business and service design experience.
Have a bias for action: you take initiative on the challenges that are presented to you. You can adapt to collaborate as a team and take ownership of your tasks to find solutions.
You are organized and oriented to detail, you like proofreading and creating systems to detect and avoid possible errors.
And we will bring out the red carpet for you if…
You are not scared of IT teams, product teams, analytics, and digital marketing.
You hold strong analytical and problem-solving skills.
You can work with the AARRR Sales Metrics Diagram (Acquisition – Activation – Retention – Referral - Revenue).
Detail is everything to you.
You are capable of interpreting quantitative data and understanding the needs of users thanks to interviews and questionnaires.
What we look for in anyone at Byld…
You know and are curious about new technologies and innovation and their impact on the world that we live in.
You control the “startup” language.
Controlled uncertainty is something that you feel comfortable with.
You are able to multitask and work in rapidly changing environments.
You can manage your time perfectly.
Your attitude is dynamic and ambitious, and you are eager to learn.
You are able to confront opposing opinions.
You are willing to take risks, take initiative, and say what you think at every moment.
You are obsessed with quality.
You have read our values and you identify with them.
Benefits
Inspiring and fulfilling work at an innovative and results-driven company creating cutting-edge ventures.
Create a huge network within the startup and corporation ecosystems.
Work from home is embedded inside the company.
Flexibility in matters of work schedule and holidays.
4 working days policy. Fridays are for fun. We “only” work (hard) from Monday to Thursday.
Dynamics for skills development and formation in different fields. Freedom to learn and apply new technologies to meet the needs of the ventures.
A friendly, inclusive, and multicultural environment. Be part of an international team that is either able to make paella, prepare caipirinhas, or build the next unicorn.
About Byld
Byld is a Spanish Corporate Venture Builder founded in 2017 that designs, validates, and launches new ventures with corporations sharing risks and rewards from day one, we lead and co-found new ventures from scratch combining the best of the entrepreneurial and corporate worlds to encourage the creation of scalable businesses with an international scope.
Our formula for helping companies innovate is more effective and less risky than traditional methods, as it is entirely devoted to it an
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