# leowe.com - Leonard Weise

**Leonard Weise**
contact@leowe.com | leowe.com | linkedin.com/in/leonardweise | @leowe (Twitter/X/Instagram)

Technical Founder specializing in FinTech and data API solutions. Built and scaled Numerical Methods, a profitable FinTech data API company, from idea to global use. Deep expertise in financial markets (MSc Finance - Oxford & Peking, _full scholarship_, GMAT 740) leveraged to create impactful technology solutions. I have driven Numerical Methods's vision, strategy, product development, engineering, and initial commercial success.

---

## — Entrepreneurial Leadership & Engineering —

### Numerical Methods - Founder, Product Lead, Engineer

_Shenzhen, China / Berlin, Germany / Remote | Jul 2021 - Present_

Founded Numerical Methods and led all aspects of the business as CEO, Product Lead, and hands-on Engineer, transforming an idea into a profitable, globally-used financial data API platform. Numerical Methods is a real-time financial data API platform.

- **Strategic Leadership & Vision:** Defined Numerical Methods's mission to democratize financial data access; crafted company strategy, set OKRs, and fostered a high-performance, remote-first culture.
- **Product & Engineering Execution:** Led the end-to-end product lifecycle—from market research and user stories to full-stack development (TypeScript, AWS) and iterative releases. Architected the core API serving 50k+ instruments (99.98% uptime, P99 < 75 ms).
- **Commercial Growth & Fundraising:** Drove initial go-to-market strategy, personally securing first 10 enterprise pilots. Scaled Numerical Methods to net profitability within 6 months post-beta, achieving 10x net profit by the end of Year 2.
- **Team Building & Operations:** Recruited, mentored, and managed a lean, agile team of 3 full-time engineers and UX designers. Implemented operational processes for product delivery, customer support, and financial management.
- **Technical Innovation:** Engineered a novel TypeBox-based runtime validation system, slashing data edge-case errors by 85% and ensuring superior data integrity for users.

---

## — Foundational Financial & M&A Experience —

### Hainan Airlines Holdings - Investment Committee

_Haikou & Hong Kong, China | 2017 - 2019_

- Uncovered advantage for consolidating group airline maintenance subsidiaries; analysis adopted verbatim by the Investment Committee and led to the realization of said subsidiaries into HNA Aviation Technik.
- Drove valuation for Frankfurt-Hahn Airport acquisition deal; model surfaced 7% price reduction.
- Accelerated M&A deal flow; cut review time by 35%, implementing screening infrastructure.

### CRRC Corporation Limited - Corporate Development, M&A

_Beijing, China | 2016 - 2017_

- Accelerated M&A pipeline 3 months, prioritizing 8 EU targets from 45 via a 10-factor scoring model.
- Spearheaded commercial DD for German wireless-power OEM (€ 80 m EV); Board approved 60-page investment report.
- Constructed DCF/LBO models for € 350 m aggregate EV for NDRC filings.

---

## — Education —

**MSc Finance (Dual-Campus Program) - _Full Academic Scholarship_**
_University of Oxford, UK & Peking University, China | 2019 - 2021_

- GPA: 3.7/4.0
- Focus: Adv. Corp. Finance, Valuation, Derivatives. Thesis: Corporate Cash Holdings under Uncertainty: Dynamic GMM and Machine-Learning Insights.

**Award of Certificate in Mandarin Chinese as a Foreign Language** _The Chinese University of Hong Kong, Yale-China Chinese Language Centre_
_The Chinese University of Hong Kong, Yale-China Chinese Language Centre_

---

## Core Competencies & Leadership Impact

- **Tech Entrepreneurship & CEO Leadership:** Vision & Strategy, P&L Management (Implied), Fundraising, Go-to-Market, Team Building & Culture.
- **Product Management & Engineering:** Full Product Lifecycle, API Design & Architecture, SaaS Development (TypeScript, AWS), Low Latency Systems, Data Integrity, Agile Methodologies.
- **Financial Acumen & Data Expertise:** Deep Understanding of Financial Markets, Financial Data APIs, FinTech Solutions, Valuation, Cross-border M&A Strategy.
- **Business Growth & Scalability:** Drove fintech startup to profitability, architected for 50 k+ instruments, secured seed funding.
- **Operational Excellence:** Reduced Data Errors 85%, Implemented Efficient Product Delivery Processes.

**Tech Stack Highlights:** TypeScript, Python (pandas), AWS (Lambda, DynamoDB, API Gateway, Certified Solutions Architect - Associate), TypeBox, SQL.
**Languages:** German (Native), English (Fluent), Mandarin Chinese (Professional Working Proficiency).

---

## Certifications & Awards

- **German Federal Financial Supervisory Authority (BaFin) Clearance**
- **Full Master's Scholarship** (University of Oxford & Peking University)
- **GMAT Score: 740** (97th percentile)
- **GRE Score: 336/340** (Top 1%: V169, Q167, AW4.0)

---

## Beyond the Desk

- Competitive Sailor: RYA Day-Skipper, EU Yacht Licences.
- Avid mountaineer and skier.
- Oxford Union Debater.

## Contact

- [LinkedIn](https://linkedin.com/in/leonardweise)
- [GitHub](https://github.com/leowe)
- [X](https://x.com/leowe)
- [Instagram](https://www.instagram.com/leowe)

## Pages

- [Home](https://www.leowe.com/): Short introduction, the most recent notes, and links to the rest of the site
- [About](https://www.leowe.com/about): Career history, from M&A in aviation and rail to founding a financial data API company
- [Contact](https://www.leowe.com/contact): Email address, a 15-minute booking link, and social profiles
- [Bookmarks](https://www.leowe.com/bookmarks): Saved links and articles, each shown with its source site
- [Music](https://www.leowe.com/music): Original tracks, with notes on how they are produced and mixed

## Notes

- [Coding While the Coffee Brews: How AI Transforms the Developer's Day](https://www.leowe.com/n/coffee-coding): How LLMs shift a developer's day from writing code to directing agents (published 2025-06-21)
- [Beyond the IDE: Pragmatic Patterns for Agentic Coding](https://www.leowe.com/n/agentic-coding-patterns): Ten patterns for working with coding agents, from runtime-first design to running tasks in parallel (published 2025-06-20)
- [Bye Encryption: Where Democracies Are Worse Than Authoritarians](https://www.leowe.com/n/cyber-security): Parallels between China's 2016 data law and the UK's demand for encryption key access (published 2025-04-26)
- [The Tropical Island That's Leading the Way in Nuclear Energy](https://www.leowe.com/n/tropical-island-goes-nuclear): Linglong One in Hainan, the world's first commercial small modular reactor, and why the design is easier to scale (published 2025-04-03)
- [A Wild Ride on the Blockchain](https://www.leowe.com/n/wild-ride-on-the-blockchain): Large Ethereum transfers and burns used to broadcast claims about brain-computer interfaces, and what those claims are worth (published 2025-03-16)
- [Multi-Agent Knowledge Graphs](https://www.leowe.com/n/multi-agent-knowledge-graphs): A nine-agent architecture for knowledge graph enrichment: retrieval, entity extraction, schema alignment, conflict resolution (published 2025-02-14)
- [Venture Capital 3.0](https://www.leowe.com/n/venture-capital-next): Three eras of venture capital, and how AI changes sourcing, analysis, and portfolio support (published 2025-02-11)
- [The AI Model Wars: A Technical Dive into Pricing, Quality, and the Eroding Moat](https://www.leowe.com/n/ai-model-wars): How LLM token prices fell from $60 to cents per million, and what a narrowing quality gap means for builders (published 2025-01-17)
- [Navigating the Database Abyss: A Technical Odyssey Through Numi's Data Model Evolution](https://www.leowe.com/n/the-database-abyss): Three infrastructure rewrites behind a financial data API, from client-side caching to Redis to PlanetScale (published 2025-01-04)
- [My Stack](https://www.leowe.com/n/stack): The databases, ORM, rendering model, dev tools, and styling used day to day (published 2025-01-01)
- [Unikernels + Bun: A Blueprint for Zero-Penalty Serverless](https://www.leowe.com/n/unikernels-bun-serverless): Pairing unikernels with the Bun runtime to cut serverless cold starts and idle cost (published 2024-12-28)

## Book: Thriving in Entropy

Nine chapters on working through complexity and uncertainty, with Netflix and Pfizer case studies, self-assessment indices, and back matter. Start at the table of contents.

- [Thriving in Entropy — Table of Contents](https://www.leowe.com/b/table-of-contents): Chapter list and entry point for the whole book
- [The Entropy Advantage: Turning Unpredictability into Your Greatest Asset](https://www.leowe.com/b/chapter-1): Five kinds of organizational entropy — information, strategic, competitive, technological, talent — and how Netflix and Pfizer turn them into advantage
- [The Navigator's Compass: Steering Through the Fog of Uncertainty](https://www.leowe.com/b/chapter-2): Kinds of uncertainty, and a toolkit and index for deciding under ambiguity rather than waiting it out
- [Antifragile by Design: Building Systems That Gain from Disorder](https://www.leowe.com/b/chapter-3): Where antifragility goes beyond resilience, and the variation–selection–retention cycle that builds it
- [The Opportunity Engine: Turning Uncertainty into Strategic Fuel](https://www.leowe.com/b/chapter-4): A four-step cycle — spot, cook, test, grow — for turning uncertainty into tested opportunities
- [Built to Endure: The Five Pillars of Resilient Organizational Design](https://www.leowe.com/b/chapter-5): Five pillars of resilient design: functional redundancy, loose coupling, adaptive capacity, graceful degradation, rapid feedback
- [Unlocking Collective Genius: Why the Smartest Person in the Room IS the Room](https://www.leowe.com/b/chapter-6): Five conditions for group intelligence: cognitive diversity, psychological safety, interaction patterns, aggregation, facilitation
- [Adaptive Leadership: Steering Through Complexity and Constant Change](https://www.leowe.com/b/chapter-7): Five leadership skills for complexity: sense-making, deciding under uncertainty, learning agility, network mobilization, a resilient mindset
- [The Living Strategy: Mastering the Art of Continuous Adaptation](https://www.leowe.com/b/chapter-8): Five principles for a strategy that adapts: direction over destination, options over predictions, experimentation over analysis, evolution over execution, positioning over planning
- [Thriving on Complexity: Designing the Adaptive Organization](https://www.leowe.com/b/chapter-9): Five design principles for an organization that thrives on complexity, with Netflix and Pfizer examples
- [Glossary](https://www.leowe.com/b/glossary): Definitions of the book's terms and indices
- [Bibliography](https://www.leowe.com/b/bibliography): Papers, books, and case studies the book draws on
- [Epilogue](https://www.leowe.com/b/epilogue): Closing argument that adapting to entropy is a practice, not a destination
- [Appendix: Index Summary](https://www.leowe.com/b/appendix): Every index in one place, with its formula, components, and purpose
- [About the Author](https://www.leowe.com/b/author): Who wrote the book and the background behind it

## Feeds

Every note and every book chapter, each entry with its title, link, summary, and publication date. The three formats carry the same items; one is enough.

- [RSS](https://www.leowe.com/feed/rss): RSS 2.0
- [Atom](https://www.leowe.com/feed/atom): Atom 1.0
- [JSON Feed](https://www.leowe.com/feed/json): JSON Feed 1

---

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---

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