Open to opportunities

Misleyane Celestino

@misleyanecelestino

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Senior Product Designer focused on fintech and enterprise SaaS outcomes.

Brazil

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What I'm looking for

I’m seeking product-design roles at fintech or SaaS companies where I can lead discovery, build design systems, run research, and collaborate cross-functionally to improve user experience and KPIs.

I am a Senior Product Designer with 5+ years designing B2C and B2B fintech and enterprise SaaS products, leading discovery, prototyping, and design-system initiatives that reduce user friction and improve key metrics. I collaborate closely with PMs and engineering to deliver measurable product outcomes and have strong experience running user research, usability testing, and design ops.

My work includes redesigning complex product flows, building design systems (Material Design-based), creating motion prototypes, and launching MVPs that unlock new revenue streams. I am proficient in Figma, FigJam, Miro, Maze and tools that support cross-functional delivery, and I hold an MBA in Digital Business from USP/Esalq.

Experience

Work history, roles, and key accomplishments

Current

Senior Product Designer

Current

Exactera

May 2025 - Present (8 months)

Improved UX across multiple AI-driven products by redesigning flows, iterating through benchmarking and user testing, and rebuilding the design system based on Material Design 2.0 to streamline delivery processes.

Figma FigJam Jira Design Systems User Testing UX Research Prototyping

Senior Product Designer

School Status

Apr 2024 - Dec 2024 (8 months)

Redesigned the Forms and Flows product to revive stagnant UX, produced user flows and prototypes, and executed comparative tests and user evaluations to validate solutions and component libraries.

Figma FigJam Jira User Testing Prototyping UX Research Component Libraries Interaction Design

Senior Product Designer

Ame Digital

Dec 2021 - Mar 2024 (2 years 3 months)

Led discovery and MVP development for new fintech products including a consolidated Wallet, ran experiments and usability tests that informed product hypotheses, and built design systems and motion prototypes to support launches.

Figma FigJam Miro Maze After Effects Design Systems UX Research Prototyping

Senior Product Designer

Wedo Tecnologia

Apr 2022 - Jul 2023 (1 year 3 months)

Redesigned Rock Management platform and developed ERP HR responsive prototypes, improving usability and delivering complete tested platform versions for industrial and startup customers.

Figma Trello Notion UX Design Information Architecture User Flows Product Design

PCIC Assistant

Callink

Feb 2020 - Feb 2022 (2 years)

Progressed from collections operator to PCIC assistant, performing quality monitoring, process mapping, and internal staff support for client operations and compliance.

Telecollections Process Mapping Excel client support Tele Collections Process Improvement Reporting

Junior Product Designer

Sempre Design

Feb 2020 - Feb 2022 (2 years)

Conducted benchmarking, user interviews, and usability tests to inform low-fidelity wireframes and end-to-end blueprints, delivering responsive web and mobile prototypes.

Figma Mural Usability Testing Benchmarking Wireframing Prototyping User Interviews Information Architecture

Junior Product Designer

Chleba Digital Agency

Mar 2021 - Dec 2021 (9 months)

Produced medium-fidelity wireframes and interaction flows, analyzed heatmaps and recordings to identify journey gaps, and delivered designs for marketplaces, e-commerce, and B2B/B2C platforms.

Hotjar Wireframing Information Architecture UX Analysis Prototyping Usability Testing Interaction Design

Junior Product Designer

HostHelp

May 2021 - Sep 2021 (4 months)

Led website rebranding and information architecture overhaul, rebuilt wireframes and prototypes to reduce rejection rate from 67.83% to 46% through UX improvements.

Figma Miro Wireframing Information Architecture UX Research Prototyping

Architecture Intern

Maria Helena Cremasco

Oct 2017 - Dec 2018 (1 year 2 months)

Prepared technical drawings and site surveys for architectural, structural, and plumbing projects and monitored construction progress to ensure design compliance.

Autocad SketchUp technical drawings Pre Site Surveys Drafting Documentation

Education

Degrees, certifications, and relevant coursework

University of São Paulo - ESALQ

Master of Business Administration, Digital Business

2023 - 2025

MBA in Digital Business program at the University of São Paulo (ESALQ) from May 2023 to Feb 2025 focusing on digital business strategies and product innovation.

Multivix (Capixaba College, Nova Venécia)

Bachelor's degree, Architecture and Urban Planning

2014 - 2018

Bachelor's degree in Architecture and Urban Planning completed from January 2014 to December 2018 with coursework in technical drawing, site surveys, and construction monitoring.