polinakarasova.me@gmail.com

Bringing Brand Consistency to Finance Orgs with AI

Macabacus is a productivity tool for finance and banking.

I designed an AI-driven tool that captures a company's tone of voice from text files and applies it to PowerPoint slides.

This reduced time spent on writing and reviews, improved brand consistency across slide decks, and helped investment bankers produce client-ready presentations.

January — March 2025

/ opportunity

How might we enable finance teams keep slide decks on-brand without endless manual reviews?

/ my role

I led PRD writing, created user flows, UI design, responsive layouts, and designed micro-interactions for two user personas: investment banker and their manager.

I proactively collaborated with engineering team ensuring technical feasibility of the designs and smooth handoff process with detailed user flows and specs.

/ taking on the initiative

To kick off the project I led the PRD writing to build alignment across Product and Engineering

When we began working on this tool, the team had very little alignment on scope and requirements. I took the initiative to create a Product Requirements Document, despite the pushback from the team. After sharing the first draft with the team, the response was very positive—the Head of Product, Engineering Manager, and others began adding comments and contributing. The document helped bring everyone together, increased engagement inside the team, and created clear alignment moving forward.

User stories in the Product requirements document
Pieces of the Product requirements document
/ solution

The entire flow includes two users: investment bankers and their managers. Managers define Tone of Voice and prompts, while investment bankers apply them to PowerPoint slide deck.

Step 1: Setting Tone of Voice

Managers establish a shared Tone of Voice using AI by providing approved writing samples, ensuring their teams produce presentations that reflect company standards without ongoing manual oversight.

Step 2: setting up prompts

Managers define a set of prompts, such as summarizing, translating, or proofreading —so investment bankers can refine slides consistently without crafting prompts themselves.

Step 3: Fine-tuning prompt list

Managers update prompts centrally in the manager dashboard, allowing teams to benefit from centralized improvements while maintaining a stable workflow.

Step 4: Applying tone of voice to the slide text

Investment bankers work under tight deadlines, often reusing and editing slides late in the process.

AI Writing Assistant tool that we created prioritizes speed while keeping brand consistency across the slides. To apply tone of voice directly to slides investment banker selects one of the prompts created by their manager.

/ the details

I designed micro-interactions across the tool to reduce uncertainty and help users understand the system’s behavior.

Warning message for the manager
Uploading a doc for tone of voice
Toast message for the manager
Prompt settings toggle
Text edited with ai by the employee
Edit of the Ai prompts
Card pill chages based on the toggle state
/ collab with developers

I involve engineers early by collaborating on PRD writing, co-ideating when exploring solutions, and reviewing designs together to assess feasibility. Also, we have ongoing communication directly in Figma share questions, ideas, and align with each other.

Frequent Figma-based communication help surface constraints early and turn implementation insights into strong design decisions.

Communication via figma comments
/ handoff

When handing off design for development, I indicate interactions, states and make notes to eliminate misunderstandings with engineering team. 

Notes for devs in the handoff file
/ user feedback

"The team’s presentations come out polished and on-brand right away"

I partnered with Customer Support team to collect user feedback

"Now I don’t have to spend hours reviewing slides — the team’s presentations come out polished and on-brand right away."
— Manager who bought subscription for their team

"It saves me time and takes the guesswork out of writing"
— Investment Banker who uses Macabacus

/ team feedback

"Polinas design work has played a clear role in helping the team meet its goals. Her execution on the AI Writing Assistant project provided the foundation for moving this initiative forward. She consistently brings fresh perspectives to ambiguous problems and delivers high-quality designs that enable progress across the team."

— Danny Pierre, Sr. Product manager @Macábacus

Get in

touch

Let's create

something cool together

polinakarasova.me@gmail.com

Polina Karasova