Resume
Professional resume and curriculum vitae
Elie Teyssedou
Software Architect · MCP & Agentic Engineering
Software architect, 10+ years building backends and clean, scalable systems. This past year, focused on production AI: MCP servers, agentic LLM features, and helping engineering teams adopt agentic coding. Most recently led on AI at Claap (acquired by Lemlist); before that, co-founded and sold a fintech startup. Remote from France. Available for freelance.
Work Experience
MCP & Agentic Engineering Consultant
Helping companies build production AI: MCP servers, agentic LLM workflows, and the team practices to adopt agentic coding. Currently also building Flares, an AI product.
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- MCP server design & implementation: exposing a product's data and actions as well-scoped tools for Claude, Cursor and other MCP clients (schemas, auth, pagination, tool annotations, observability)
- Agentic workflow engineering: tool-calling loops, retry and error-feedback patterns, model selection, and cost/latency tuning for reliable LLM features
- Agentic-coding enablement: helping engineering teams adopt Claude Code through conventions, shared workflow tooling, reviews, and internal demos
- Building Flares, an AI product (new venture)
- Open source: maintain MCP Pointer (an MCP server, 500+ GitHub stars) and a VS Code code-review extension for Claude Code; publish Clean Boilerplate '26
- Writing on agentic coding and software architecture at etsd.tech
Senior Software Engineer, Leading on AI
Brought in just after the Lemlist acquisition to take over and lead AI for a small team at Claap (an AI meeting & CRM platform), owning everything from the user-facing assistant down to the observability and infrastructure beneath it.
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- Extensively reworked ClaapAI, the product's conversational AI agent: its tools, models, system prompts and UX. Wrote most of the product's prompts
- Drove the team's move to agentic coding (Claude Code) as the internal champion, with shared workflow tooling, conventions codified from code review, and regular demos
- Built the team's AI-quality tooling from near-zero: Langfuse + OpenTelemetry tracing across the serverless workers (tool spans, tokens, latency, sessions), plus internal discovery/annotation UIs to evaluate and improve the agent
- Redesigned and extended the product's MCP server to Anthropic Connectors Directory standards, so external agents (e.g. Claude Desktop) can drive it through well-scoped tools (annotations, cursor pagination, schema validation, usage analytics)
- Improved Claap's agentic workflows and built new ones, with complex, multi-source context pipelines assembled for the models
- Built multilingual semantic search / RAG (Gemini embeddings on OpenSearch) to retrieve context for the AI features
- Led AI cost & model research: model migrations, generation-config tuning, model down-selection, and caching
- Designed the usage-based AI credit & billing system: workspace-pooled credits, atomic consumption, cycle resets, Stripe sync
- Also shipped across the broader product: billing, partner integrations, and the post-acquisition cross-sell with Lemlist
Software Engineer & Open Source Developer
Open-source tools, AI-powered development workflows, and freelance software engineering, the deep dive into agentic coding that led to the AI role at Claap.
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- Freelance client work: built serverless backend (AWS Lambda, API Gateway), integrated Stripe payment flows, delivered Webflow frontend
- Explored multiple business opportunities through customer interviews, POCs, and MVPs
- Published MCP Pointer - open-source MCP server for agentic coding workflows (500+ GitHub stars)
- Deep dive into AI-assisted development: LangChain, Claude API, agentic coding patterns with Claude Code/Cursor/Windsurf
- Released Clean Boilerplate '26 - TypeScript/Clean Architecture template optimized for AI coding assistants
- Technical writing on software architecture and AI-powered development at etsd.tech
Operations & Technical Support
Helped my partner launch and grow her e-commerce brand (3D-printed cookie cutters & pastry tools). I was hands-on with operations, sourcing, and product R&D.
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- Automated core business processes and workflows
- Product R&D through 3D modeling and printing for prototypes and tooling
- Managed international hardware sourcing operations
- Structured business operations: accounting, inventory, logistics
- Supported brand with significant social media presence and audience engagement
Tech Lead – RocketChart
Tech Lead for the RocketChart product inside Sellsy after its acquisition.
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- Led technical direction and architecture for the RocketChart product within Sellsy’s larger ecosystem
- Designed and improved data flows, authentication layers, and service integrations for scaling
- Supported international rollout with a major focus on Spain and Belgium
- Collaborated closely with product managers, designers, QA, and engineers in Agile/Scrum workflows
- Maintained production systems, optimized performance, and improved reliability
Technical Co-Founder
Co-founded and built a cashflow management SaaS from zero to acquisition, fully bootstrapped with a remote team.
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- Designed and developed the entire platform: real-time banking sync, forecasting engine, scenarios, dashboards and reporting
- Built a financial product with a strong focus on clarity, ergonomics, and data visualization
- Established a strict zero-known-bug policy, resulting in a highly stable platform with excellent uptime
- Bootstrapped the company from incorporation during the COVID lockdown to more than 100 paying SMB clients in 2 years
- Contributed to the product’s acquisition by a major French software editor to build a more complete European CRM suite
Software Engineer → Lead Developer
Worked on high-volume last-mile logistics systems, and progressively took a lead role on architecture and implementation.
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- Led or co-led the design and development of several key products, including the courier app (Copilot), the route planner, and the 2h Chrono delivery service
- Drove architecture work on real-time dispatching, routing algorithms, and multi-service communication
- Worked closely with product, design, and operations teams in Agile/Scrum workflows
- Helped scale the platform technically during rapid growth
- Company was later acquired by Top-Chrono
Full-Stack Developer
Worked on LiveMentor’s early platform as they introduced their Masterclasses.
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- Implemented backend and frontend features in Ruby on Rails
- Worked with designers and product managers in an Agile team
- Contributed to the first version of the Masterclasses product
Software Developer
Worked on tools for real-time crowd data and large-scale geospatial datasets.
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- Processed and automated ingestion of datasets with millions of POIs
- Built data visualization tools for maps, graphs, and real-time displays
- Worked with OpenStreetMap and geospatial data processing pipelines
- Collaborated within a small engineering team using Agile practices
Publications
MCP Pointer
Open-source tool bridging DOM element selection with MCP-based AI coding assistants. Designed with clear modular architecture, extensive documentation, and a contributor-friendly structure. I maintain it solo: docs, issues, and the occasional external contribution.
Clean Boilerplate '26
Clean Architecture boilerplate for TypeScript apps, optimized for clarity and AI-assisted tools. Includes structured layers, documentation, and practical examples.
Read That F*cking Code!
Featured on Hacker News (#1) and TL;DR Web. Focused on understanding AI-generated code, maintaining architectural integrity, and keeping developers in control.
An essay on the shift from typing code to thinking about systems, architecture, and product behaviour.
A practical playbook for joining a new team with an AI agent: bootstrapping CLAUDE.md, capturing conventions from code review, and getting Claude Code to match a project's standards.
A VS Code extension that brings a native code-review UI to Claude Code: annotate changed lines with native VS Code comments, then push structured, line-level feedback into a running Claude Code session via the Channels API. Auto-provisions its own MCP server, slash command, and cleanup hook on activation. Published on the VS Code Marketplace.
Volunteer Work
Creator & Maintainer
Maintainer of a regional paragliding community page and developer of high-performance geospatial visualization tools.
- Built a 3D interactive map (deck.gl) capable of rendering hundreds of thousands of points from thousands of .IGC flight traces
- Designed and optimized geospatial pipelines for large-scale .IGC parsing, cleaning, and aggregation
- Produced route analysis tools and statistics based on FFVL open-data
- Worked on visualisation for XC flying: maps, 3D paths, performance metrics, and weather-related overlays
- Grew and animated a community of pilots by sharing insights, visualisations, and educational content
Skills
AI & Agentic Engineering
Agentic Coding & Enablement
Architecture
Programming Languages
Frontend Development
Backend & APIs
Databases
Search & Observability
Cloud & DevOps
Data & Visualization
Education
Master's degree
Completed the 42 Paris program with a focus on algorithms, low-level programming, and software fundamentals. Earned RNCP 7 (Master’s level) certification via VAE in 2022.
Languages
Interests
Paragliding
Software Architecture
AI & Development
Last updated: 2026-06-10