Sergio Sastre Perez Email & Phone Number

San Diego, Ca, Us

California, United States

Greater San Diego Area

Product development and strategy for global B2B library softwareSpearhead the redesigns of CRM and CMS products used by over 5.5k libraries, 200k librarians and 30m+ users globally, unifying and modernizing UX & backend-technologies.Lead a transformative shift in the product development process of the company championing a user-centric approach, which increased engineering output by 50% and boosted productivity, morale, and innovation across teams.Build UX team within the product org and mentor on best practices for sitemap, design, & prototype creation in Figma.Launch “Springshare Lounge” a central customer communication hub to announce releases, identify issues, and promote problem-solving collaboration between customers as well as business leads.Built internal tools to track feature and product usage.Created & executed user research processes to facilitate direct feedback loops between customers and business leads, influence product & design concepts, goals & roadmaps, and go-to-market plans.Generate & manage strategic roadmaps and collaborate with cross-functional teams to develop strategy, set goals, create GTM plans, prioritize features, generate requirements, and implement 3rd party integrations.Product suite: CRM, CMS, Customer Support, Bookings, Customer Engagement, and Analytics Tools.

California, United States

Led product & UX operations and developed strategy for a D2C tech start-upLed research, ideation, design, development, test, launch & iteration phases across design, product, and engineering teams for a digital lost & found product.Defined & implemented design and product strategy to align with company's long & short-term vision, strategic goals, and OKRs.Collaborated with the founder on D2C & B2B strategies, defined and developed GTM plans, led post launch initiatives, and contributed to the creation of the pitch deck to raise capital.Transitioned to an offshore design & dev team reducing cost by 75%; played a key role in the hiring, vetting, and mentoring of new team to ensure a smooth integration into the company's operations and culture.Work with founder to optimize conversion through user testing, A/B & multivariate testing, conducting surveys, tracking key metrics, running in-person experiments, and analyzing results.Managed design and engineering teams to consistently deliver high-quality results, delight users, and scale the platform.Led +5 technical API integrations to completion, including Stripe, Brevo, Twilio, TaxJar, and QR Monkey.

San Diego, California

Managed redesign of a B2B multi-million dollar online car auction siteManaged successful platform redesign resulting in a 600% increase in acquisition, 30% increase in sales revenue, 20% increase in retention, and 45% decrease in operation costs within 6 months.Ideated, designed, and launched innovative product features to support business growth.Collaborated closely with UX designers to create intuitive user interfaces, resulting in increased user engagement.Revamped & automated invoicing and payments modules, which increased customer satisfaction, boosted avg. transaction fee by 25%, and reduced operating costs.Worked with teams to determine backlog & prioritize features. Created requirements, sitemaps and wireframes.Partnered with marketing, operations, sales & users to define GTM plans, gather feedback, & influence roadmap.Led implementation of 3rd party APIs for payment system, car valuation, email service, and transportation partners.

Madrid, España

Built an agency to create B2B & D2C software solutions.Drove 6 multi platform projects (web & app) to success through adherence of scope, budget, and timeline. Managed product life cycle end-to-end, set strategic goals & KPIs and drove company strategy through data and market research.

Madrid, España

Developed multiplatform app for IT education and research for use by 2,000 students.Architected, designed, developed and tested an e-learning mobile application focused on data retrieving.Planned and executed the project; provided visibility to stakeholders through status reports & timeline updates.Managed tasks and worked with the department director to develop features aligned with their goals.Enhanced data collection procedures to include relevant information for building new analytic systems.Generated reports & redesigned the online grade book to highlight student performance through data.Improved data gathering and analysis for department reducing decision-making time by more than 20%.

Certificate, Project Management

Bachelor'S Degree, Computer Science