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On AI Lounge since Oct 2026

Valentin Castillo Contreras

@valentinc94Member #1,517FounderL2
Founder & CTO, QueryBlocks
Building scalable software and high-impact MVPs to accelerate tech startup growth.
Porto, Portugal QueryBlocksGitHub ★ 1Hugging FaceXLinkedIn
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Achievements · 1 of 20

Plugged In ×4Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 4 sources (GitHub, LinkedIn, X or a website) in SettingsEarned Oct 30, 2026
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Categories

Service ProvidersB2B

Skills

LLM App DevelopmentAI AgentsAI-Assisted CodingPythonJavaScript & TypeScriptBackend DevelopmentCloud & DevOpsSoftware ArchitectureBlockchain Development

Stack

OllamaClaudeKimiAmazon BedrockGrokChatGPTLangGraphVercelGoogle AI StudioElevenLabsSupabase11 tools

Experience

Bnp Paribas logo
Senior Backend Engineer · Bnp Paribas
Jun 2025 – PresentCurrent
Alten logo
Senior Backend Engineer · Alten
Jun 2025 – PresentCurrent
QueryBlocks logo
CTO & Co-Founder · QueryBlocks
Nov 2024 – PresentCurrent
Queryblocks logo
Chief Executive Officer & Co-Founder · Queryblocks
Nov 2024 – PresentCurrent
QueryBlocks logo
CEO & Co-Founder · QueryBlocks
Nov 2024 – PresentCurrent
NI
Senior Backend Engineer · Natixis in Portugal
Nov 2023 – Nov 2024
LT
Senior Solutions Architect · Lsv Tech
Jan 2021 – Mar 2023
SS
Back End Developer · Start Studio
Jan 2021 – Feb 2022
Imported from LinkedIn.

GitHub activity

★ 1 star · 2,289 contributions in the last year · @valentinc94 ↗
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