Senior Product Manager

About us

Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/

About the role

We are looking for a highly independent Senior Product Manager to build a major new capability inside one of our live consumer web products, for an existing base of active users. You will be fully responsible for it end to end - researching what users actually need, defining the concept, producing the designs and prototypes yourself with AI tools, writing the backlog, shipping it with engineering, and then driving adoption and engagement after launch.

This is a high-ownership role suited for someone who thinks in products, not tickets. You will not be handed a spec, a designer, or a research team: you decide what to build, prove it with evidence, and get it live inside a product people already use every day - which means new work has to earn its place without degrading what already works.

Responsibilities

Own the research behind what we build -user needs, behaviour in the current product, and the competitive landscape

Turn findings into a clear, defensible product thesis the team can build from

Produce high-fidelity, build-ready designs and clickable prototypes using AI design tools

Define the end-to-end user journey, from first discovery of the feature to repeat use

Keep new surfaces consistent with the existing product's design system and patterns

Own a single prioritized backlog with clear sequencing, scope, and honest timelines

Write developer-ready specs with acceptance criteria, edge cases, and measurable outcomes

Run planning and delivery with the engineering team through to verified release

Verify shipped work against spec, and reject what falls short of standard

Define the metric tree for the feature - discovery, activation, task completion, repeat use

Own the experiment roadmap: prioritize, instrument, read results, and act on them

Build and maintain the dashboards you and the business make decisions from

Collaborate with the Managing Director to align the roadmap with business goals

Qualifications

5+ years in product management on live consumer web products with a substantial active user base

Proven track record shipping a significant new capability inside an existing product, not only standalone launches

Demonstrated ability to run discovery yourself - user research, behavioural analysis, and competitor analysis

Advanced, daily use of AI tools to produce high-fidelity, build-ready designs and clickable prototypes without a dedicated designer

Strong quantitative skills: funnels, cohorts, and experiment design in a product analytics tool (Mixpanel, Amplitude, or equivalent), with working SQL

Experience writing technical specs and running backlog and sprint delivery end to end (Jira, Linear, Notion, or equivalent)

Working technical fluency: able to discuss implementation trade-offs with engineers credibly

Evidence-driven - you can show the data or the test behind every product decision you defend

Highly structured operator - builds repeatable research, spec, and experiment systems

Comfortable being the only product person in the room, and making the call

Clear, direct communicator who operates effectively in a remote environment

Location

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.

Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.

Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.

Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.

Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

Recruiter Screening (40 minutes)

Technical Interview (45 minutes)

Final Interview (30 minutes)

Life at Ruby Labs

At Ruby Labs, we move fast, aim high, and expect the same from our team. We’re not here to play small—we’re here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you’re hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

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