# Mark Sherer

> Software @ Mercury

Location: New York City Metropolitan Area, United States
Profile: https://flows.cv/marksherer

## Work Experience
### Senior Software Engineer II @ Mercury
Jan 2024 – Present

### Senior Software Engineer @ Mercury
Jan 2023 – Jan 2024

### Founding Software Engineer @ Whywhywhy
Jan 2022 – Jan 2023 | Boston, Massachusetts, United States
(Left due to company shutting down)

• Developed an accessible, highly performant NextJS (React, TypeScript) app with server-side rendering, Redux, WASM-based DuckDB for a browser-based query engine, and Vega for visualization.
• As one of the founding engineers, I built many of the core systems, UX library components, APIs, and integration from the ground up. We aggressively experimented with the platform and actively adapted to user feedback while hunting for product-market fit.
• Was responsible for major architectural decisions, including our NodeJS API design, user and token-based authentication, and event-driven architecture using lambda functions.
• Built Notion integrations to unfurl interactive charts in documents.
• Built significant portions of a Chrome extension that enriched existing webapps (e.g. BigQuery),
with visualization. The extension utilized the same core tech as the app.

### Software Engineer @ Deliverr Inc.
Jan 2021 – Jan 2022 | Boston, Massachusetts, United States
• Improved the seller’s search experience by adding dynamic filters to the Algolia-based search UI.
• Improved package label readability and processing speed by utilizing dynamic PDF designs.
• Contributed many accessible components to Deliverr’s component library (React, TypeScript,
Storybook). This involved deep collaboration with library maintainers and UX designers.
• Built product features such as bulk product uploads via CSV file.

### Software Engineer @ Manulife
Jan 2020 – Jan 2021 | Boston, Massachusetts, United States
• Developed data-heavy internal apps for the sales, marketing, private equity, and real estate
teams (React, SQL Server, Redis). The apps led to increased profits by improving data transparency for business stakeholders and integrating with machine-learning models (sales predictions) built by the data science team.
• Developed a component library (React, TypeScript, Storybook) based on Manulife’s UX system.
• Architected core webapp services from the ground up, including SSO-based auth (Azure AD) ,
integration with the Azure Graph API, and multi-environment CI/CD with GitHub Actions.

### Software Engineer @ Composable Analytics, Inc.
Jan 2018 – Jan 2020 | Cambridge, MA
• Renovated large portion of the webapp’s UI (Angular 2), with an emphasis on enhanced
usability and feature-rich product redesigns, increasing customer engagement.
• Developed a performance-monitoring suite for Composable’s dataflow engine to debug
performance bottlenecks and track dataflow progress in real time (C#, dotnet framework, SQL Server, SQLite).
• Enhanced the dataflow development process with module output caching, allowing incremental, iterative development (analogous to incremental compilation vs. full recompilation on each dataflow run).
• Deployed resilient, high-performance data-engineering pipelines, enhancing robustness of production-level data ingestion and refinement


## Education
### Bachelor of Science - BS in Neuroscience and Biology
Brandeis University


## Contact & Social
- LinkedIn: https://linkedin.com/in/mark-sherer-744aa2b6

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Source: https://flows.cv/marksherer
JSON Resume: https://flows.cv/marksherer/resume.json
Last updated: 2026-03-22