Lemon.io: Senior React Full-stack Developer
June 3, 2026
Headquarters: Berlin, Germany / Amsterdam, Netherlands / Hamburg / London, United Kingdom
URL: http://insiderone.com
Before jumping into all the information about the role and what you can bring to the table, let us introduce ourselves real quick.
About us
Insider One is the #1 platform that brings everything marketing and customer engagement teams need in one place so they can reach their peak potential and become unstoppable.
Our story began with six desks and a vision to create a single platform to make industry-first technologies and emerging channels accessible to marketers worldwide. Today, Insider One is powered by 1,500+ team members representing 50+ nationalities across 30+ offices. With AI at its core and an integrated Customer Data Platform (CDP), Insider One unites data, personalization, and journey orchestration across the most extensive set of natively supported channels, including WhatsApp, SMS, Email, Web, App, and Site Search.
We recently raised one of the largest funding rounds in the industry, a $500M Series E led by General Atlantic. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 2000+ customers from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, IKEA, Allianz, Domino’s, and the list goes on.
Insider One was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world. Loved by customers, recognized by analysts, we are the only vendor recognized as the #1 leader in all the capabilities marketing and customer engagement teams need. Don’t just take our word for it — see for yourself. We consistently outperform and continue our leadership, and the results speak for themselves.
From day one, Insider One’s mission has not only been to build a world-class product company, but also to create one of the most socially progressive technology communities in the world. Through our social responsibility initiatives like 100 Social Responsibility Projects, AI Training for Teachers, Code Academy, SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact on our communities across 30+ countries, driving initiatives in health, education, farming, animal rights, and increasing women’s representation in STEM.
Behind all these achievements is an exceptionally talented, visionary team of overachievers that moves fast and agile, creating cutting-edge products, and focuses on making an impact. If you want to be a part of this journey, just keep reading.
We are looking for a Product Manager who wants to make the dream a reality.
What is our mission?
We are visionaries who guide new product ideas. We are setting the vision for our growing family of products. We use data, research, strategy, and empathy to guide development and design teams toward a common goal since we believe that only our products can alter Insider One`s destiny. We are Insider One’s innovators, our impact starts on day one, and our mission is to prove that break-through products can be created outside Silicon Valley.
What are we offering?
Impact; be a part of a world-class product team where we constantly get challenged with new things and the results of our actions create an impact for hundreds of millions of users every day.
Personal Growth; work closely with experienced PMs, get mentored by some of the best people in their fields, join tons of different training like sales, design, customer communication. Develop the skills that you need to become a successful product manager.
Experience; get important responsibilities, learn from your mistakes without getting blamed, watch experienced people work on complex matters, gain one of the most important things to become a great product manager, experience.
Delight; make tough decisions, release new features, create innovating products which bring ease and joy to the life of many individuals who use them.
Community; surround yourself with great people who constantly help each other and push each other to be better, join many different events, and become a part of the Insider One Community.
What are we searching for?
Leadership, you can make decisions and set direction while motivating and inspiring people around you to follow you in that direction.
Communication, you serve as the diplomat of the team, you can transmit complex information to different audiences clearly and you are talented in reaching the information you need on the people you are talking to.
Problem Solving, you are a natural-born problem solver, finding solutions to complex problems motivates and excites you, and at that moment when you solve the problem, feeling that sense of accomplishment is worth all the effort.
Teamwork, you are easily able to work with people around you, help them when they need, give or take constructive feedback, despite any personal conflict between you and them.
Listening, despite the fact that communicating effectively is extremely important, you should also be able to gather information from many sources around you to help you make better-informed decisions on guiding and improving your products and services.
Entrepreneurial Spirit, rather than waiting to adapt to change, you are actively seeking out change. You have a mindset that embraces critical questioning, innovation, and improvement. You can see the big picture, you are willing to take risks, you constantly seek new opportunities for innovation and you take ownership and pride in what you do. What are you going to do?
What You Will Do
- Define the why, when, and what of the products our engineering team builds, leading cross-functional teams from ideation to launch.
- Build a product and strategy that reflect Insider One’s vision, clearly articulating business value to align the team around each release.
- Own and optimize the release process, coordinating all activities to bring products to market successfully.
- Manage and prioritize initiatives, turning insights into actionable ideas by continuously tracking market trends, customer needs, and emerging technologies.
- Define and analyze key product metrics to measure performance, customer satisfaction, and improvement opportunities.
What You Will Need
- A Bachelor’s degree from a top-tier university, preferably in Engineering, Business Management, or a related field.
- 3+ years of Product Management experience, preferably with a B2B SaaS product.
- Hands-on experience in Agile Product Development.
- Exceptional decision-making and communication skills.
- The ability to manage complex initiatives with limited supervision.
- Fluent in English and Turkish, both written and verbal, as we have colleagues from all over the world.
What We Offer
- Be part of a diverse team that’s as global as it gets — where every voice is heard and 50+ nationalities build together.
- Level up with internal trainings covering AI fundamentals, coding, foreign languages, and a wide range of personal development skills.
- Feed your curiosity with access to Spotify, LinkedIn Learning, Blinkist, MasterClass, and CloudGuru.
- Become a Shareowner through our eligibility-based “ESOP” and own a piece of what you build.
- Help build the team you want to work with and enjoy rewarding referral bonuses.
- Opportunities to give back to your community through volunteering and purpose-driven social impact projects.
- From global retreats to team-building activities, expect year-round events that turn into lifelong memories.
- Get inspired by the greatest minds in the tech industry through events like our Tech & Dev Talks.
We aren’t just hiring for a position; we are hiring for a mission — a mission to build a lasting legacy that will set the benchmark for the most progressive tech companies out there.
To do this, we are looking for exceptional talent to join a community of good-hearted individuals who take high ownership and are relentlessly driven to go the extra mile.
If this sounds like who you are and where you aspire to be, we are excited to meet you.
We provide equal opportunity in a zero-discrimination workplace and not just welcome but also embrace everyone without regard to sex, race, color, nationality, religion, gender identity, sexual orientation, disability status, citizenship, or marital status.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
To apply: https://weworkremotely.com/remote-jobs/insider-one-product-manager-b2b-saas-martech-europe
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