This profile has not been claimed and data may not be accurate.
Founder154Current founder
93rd percentile
Investor0Not (yet!) an investor
Combined
Co-founder & CEO of E2B, building cloud infrastructure for AI agents
Credibility
this founder typical founder (50th pct)
Technical Depth · 85th percentile
- Actively shipping: 311 GitHub contributions in the last year (87 commits, 22 PRs, 86 reviews).
- Demonstrates personal technical depth on HN: detailed comments on building secure sandbox infrastructure, distributed systems, and code execution for AI agents.
- High-impact dev.to article 'Search Stack Overflow, docs, and code on GitHub from a single app' (61 reactions).
- Active builder with 106 public non-fork repos on GitHub.
- Ships code privately: 107 private/restricted GitHub contributions in the last year.
- Identified GitHub account @mlejva.
- Contributed to 11 external GitHub repos he doesn't own — open-source collaborator.
- Publishes on dev.to as @mlejva.
- Tenured GitHub account, active for ~12 years since 2013.
Relationship Matrix
Founder score
- 95%Probability of being accurate (95%)e2b.dev ranks #213,527 on the Majestic Million (global domain prominence).
- 95%Probability of being accurate (95%)Current Co-Founder & CEO of E2B, building secure cloud sandboxes for AI agents.
- 95%Probability of being accurate (95%)7,109 LinkedIn followers — broad professional reach.
- 95%Probability of being accurate (95%)Identified Hacker News account @mlejva with 1,504 karma.
- 95%Probability of being accurate (95%)Identified GitHub account @mlejva.
- 95%Probability of being accurate (95%)Tenured GitHub account, active for ~12 years since 2013.
- 90%Probability of being accurate (90%)Actively shipping: 311 GitHub contributions in the last year.
- 90%Probability of being accurate (90%)8 HN posts have front-paged with 100+ points — strong community reach.
- 90%Probability of being accurate (90%)32 Show HN product launches, including 'Show HN: We are building an open-source IDE powered by AI'.
- 90%Probability of being accurate (90%)E2B and Devbook each had co-founders (Tereza Tizkova at E2B).
- 90%Probability of being accurate (90%)Active builder with 106 public non-fork repos on GitHub.
- 90%Probability of being accurate (90%)Active HN poster with 226 story posts.
- 90%Probability of being accurate (90%)Active Hacker News presence with 1,504 karma.
- 90%Probability of being accurate (90%)Top HN post 'Hemingway Editor' reached 442 points.
- 90%Probability of being accurate (90%)Publishes on dev.to as @mlejva.
- 85%Probability of being accurate (85%)Raised $37M total across E2B (Series A).
- 85%Probability of being accurate (85%)Past co-founder & CEO of Devbook, a search engine for developers.
- 85%Probability of being accurate (85%)Ships code privately: 107 private/restricted GitHub contributions in the last year.
- 85%Probability of being accurate (85%)Contributed to 11 external GitHub repos he doesn't own — open-source collaborator.
- 80%Probability of being accurate (80%)Forbes feature profile on E2B's role in Silicon Valley AI infrastructure — go-to-market and positioning recognition.
- 80%Probability of being accurate (80%)Demonstrates personal technical depth on HN: detailed comments on building secure sandbox infrastructure, distributed systems, and code execution for AI agents.
- 80%Probability of being accurate (80%)High-impact dev.to article 'Search Stack Overflow, docs, and code on GitHub from a single app'.
What you likely need
You're a Series-A founder-CEO scaling E2B's AI-agent sandbox infrastructure with millions in ARR and a hiring sprint from 20 to 100+ engineers. The highest-leverage Festival events for you right now are tight founder dinners with other Series-A devtools/AI-infra CEOs, recruiting venues for distributed-systems talent, and rooms where you can compare notes on enterprise GTM with founders one step ahead. Lean into venues that double as positioning amplifiers — your Forbes feature and HN reach show storytelling pays back.
Would you attend these IRL Festival events?
We will tune and customize your Founder Festival experience to make sure you get invited to the events that would be most valuable to you.
- tacticalAn AI infrastructure Series-A founders dinner with peers selling sandboxes, eval, and agent runtimes to compare enterprise GTM playbooks.
- hiringA distributed-systems engineering recruiting happy hour in SF to source the next 20 platform engineers as E2B scales from 20 to 100+.
- positioningA devtools founder roundtable with other 8-figure-ARR CEOs who've crossed the Series A → B chasm with developer-first distribution.
- positioningA 'Show HN power-launchers' dinner with founders who've front-paged HN multiple times to swap launch tactics for the next E2B feature drops.
- introsAn intros night with enterprise champions at F500 customers (Microsoft, PGA-tier) to expand E2B's enterprise wedge beyond Perplexity/Gusto/Mistral.
- fundraisingA small Series-B prep dinner with growth-stage AI-infra investors to pressure-test E2B's narrative before opening the next round.
- tacticalA founder ops roundtable for CEOs running dual SF + European hubs to share playbooks on cross-timezone engineering and culture.
- wellbeingA small wellbeing dinner for first-time Series-A CEOs scaling 5x headcount in 12 months to share sustainable pace and decision frameworks.