Mehmet Semih B.

Technical Growth Product Manager | Deep-Tech Founder | Full-Stack Engineer (Industrial Eng × Computer Sci) | Turning Tech into Real-World Value

Istanbul, Türkiye

About

Deep-tech founder, ex-CEO, and full-stack engineer (Industrial Engineering × Computer Science). I pair systems thinking with rapid prototyping to turn vague concepts into scalable, user-centric software. Skilled in architecture, AI/ML integration, UX, and cross-functional leadership, I excel in build-from-zero environments where product vision meets hands-on code.

Experience

  • Founder's Associate & Growth Product Manager at Stealth AI Startup
    Jan 2026 - Present · 7 mos

    Driving growth, monetization, and retention for an AI-based productivity app with hundreds of thousands of installs. Full-stack product work — strategy, analysis, and production-ready code. • Designed and ran dynamic pricing experiments across multiple regions, significantly improving ROAS and conversion through behavioral segmentation • Built an external web checkout funnel end-to-end, enabling alternative payment flows outside app store billing • Set up lifecycle email marketing from scratch: trial recovery, billing dunning, and win-back sequences recovering churned subscribers • Analyzed onboarding data to drive personalization improvements, increasing free-to-paid conversion • Modeled billing churn recovery from warehouse data, built the ROI case, and shipped the full implementation • Built internal analytics dashboards tracking user satisfaction, AI model performance, and channel quality • Automated competitor intelligence across 20+ apps using AI-powered review scraping and insight clustering • Led market research for international expansion into 6 countries — pricing, payments, regulations, go-to-market • Built an agentic development ecosystem using Claude Code — custom AI skills, automated agents, and tool integrations (PostHog, Linear, Notion, GCP) that connect the full product workflow from data to deployment, significantly increasing engineering throughput and output quality Tech: Flutter · Firebase/GCP · BigQuery · PostHog · Superwall · Adapty · Python · TypeScript

  • Angel Investor at Self-employed
    May 2025 - Present · 1 yr 3 mos

    Backing ambitious founders at the pre-seed and seed stages. I look to add value far beyond capital. I love partnering with early-stage teams to help them navigate product-market fit, scalable technical architecture, and initial growth mechanics.

  • AI Product Manager at Upily
    Aug 2025 - Jan 2026 · 6 mos

    •Owned Upily’s AI integration strategy: model/provider choices, orchestration patterns (RAG, agents, voice), and rollout standards across products. •Lead mobile apps that are aligned with the AI Integration Strategy of Upily and shipped multiple AI-native prototypes to production quickly across voice, agents, personalization, and parent dashboards (MLP-first, tight iteration loops). •Built developer AI pipelines: reusable prompt/versioning patterns, evaluation gates, tracing, and cost/latency monitoring integrated into delivery workflows. •Delivered end-to-end conversational systems (STT/TTS + streaming UX) with safety and loop-prevention for kid-facing experiences. •Implemented RAG services (hybrid retrieval + reranking) to make answers grounded, curriculum-aware, and reliable. •Partnered with my team and stakeholders to translate user needs into measurable specs, MVP/MLP scope, and execution plans.

  • Head of Product / Co-Founder at SOLACE
    Nov 2023 - Aug 2025 · 1 yr 10 mos

    • Built and shipped two AI products—Ensi (smart home) and EMA (B2B conversational sales assistant)—leading full‑stack development and system architecture, UX/brand, roadmap, and rapid iteration to early traction. • Secured admission to Bilişim Vadisi national innovation program; raised $30K in public grants; managed a $200K operating budget with capital efficiency. • Drove strategic pivot from consumer smart‑home hardware to B2B SaaS through customer interviews and competitive research, instituting fast discovery→build→feedback loops. • Led engineering across infrastructure, web and mobile apps, and multi‑user architecture; personally prototyped core modules to de‑risk technical decisions and accelerate delivery. • Scaled the team from 4 to 12 while maintaining burn rate by recruiting a lean, cross‑functional group, setting clear ownership, goals, and review cadences, and overseeing hiring, legal, compliance, and finance operations. • Developed product roadmap with short iteration cycles, beta deployments, and structured stakeholder feedback to prioritize high‑value features; led GTM and brand positioning, messaging, and launch assets; represented Solace in investor meetings, media interviews, and industry events.

  • Part-Time Researcher at TÜBİTAK BİLGEM
    Aug 2023 - Dec 2023 · 5 mos

    • Prototyped a threshold-signing MPC Wallet in Flutter+Go, eliminating single-key custody risk and enabling secure cross-platform transactions. • Created a shared Go cryptography library (key shares, secure messaging, partial signatures) and exposed it via FFI to Flutter to standardize crypto primitives and accelerate integration. • Built adversarial simulations to validate protocol robustness, and conducted applied R&D on Chainlink Oracles—shipping an experimental oracle for a soccer-betting smart contract.