Responsibilities
- Own product features from design through implementation, testing, and deployment.
- Build polished, performant UI workflows and backend APIs and services.
- Improve the architecture of systems powering modeling and analysis.
- Build for auditability, correctness, permissions, versioning, and reproducibility.
- Partner with product, design, go-to-market teams, and customers to translate workflows into product features.
- Participate in code reviews, technical design discussions, and system planning.
- Improve developer tooling, observability, and internal infrastructure.
- Help establish engineering best practices as the organization scales.
Requirements
- 2–6+ years of experience building modern web applications.
- Experience working across frontend and backend and owning features end-to-end.
- Experience building clean user interfaces with modern frameworks, preferably React.
- Experience building APIs and services using technologies such as Node, Python, or Go.
- Strong data modeling skills and comfort with relational databases.
- Familiarity with cloud infrastructure and production systems.
- Strong usability, quality, and UI performance instincts.
- Bonus: experience with finance, analytics, or high-compliance workflows.
- Bonus: familiarity with AI product patterns such as LLMs, agents, and structured extraction.
- Bonus: experience with spreadsheet-like workflows, observability tooling, performance profiling, or infrastructure work.
Benefits
- Full-time position with an early-stage startup equity package
- Health, vision, and dental coverage
- Unlimited PTO
- Team-building events, offsites, and happy hours
Categories
About Mosaic
Financial modeling is at the core of every investment decision, but for many firms, it remains highly manual, repetitive, and difficult to standardize. Mosaic is the AI-powered financial modeling platform purposefully built for leading buy-side and sell-side deal teams on Wall Street. We help firms build, analyze, and collaborate on financial models faster while preserving the rigor, flexibility, and judgment that institutional investing demands. Rather than rebuilding models from scratch for every opportunity, firms use Mosaic to institutionalize their investment methodology, accelerate underwriting, reduce repetitive modeling work, and enable teams to spend more time evaluating businesses and less time constructing spreadsheets. Today, Mosaic is trusted by many of the world's leading private equity firms and investment banks, including Warburg Pincus, CVC Capital Partners, New Mountain Capital, Evercore, and others, representing more than $1 trillion in assets under management. We believe the future of investing belongs to teams that can turn better analysis into better investment decisions. Mosaic is building the platform to make that possible.