CV
The Portfolio

NELSON
LOURENÇO

Business areas: Blockchain | OSS Telecoms | Automotive | Banking. Resilient - Problem solver - Team player.

Contact

Lisbon, Portugal

nelson.str@gmail.comLinkedIn

Core Skills

ResiliencyCursorSwagger API

"I operate at the intersection of robust backend engineering and the decentralized future. From securing telecom systems to architecting Layer 3 blockchain solutions, my career is defined by resilience and complexity."

Blockchain Tech

OP Stack, CosmosSDK, Solidity, Smart Contracts.

Infrastructure

Kubernetes, Docker, AWS, GCP, IaC.

Leadership

Chapter Lead capable. Mentorship & Team Building.

Technology Stack

GoLang
GoLang
TypeScript
TypeScript
Kubernetes
Kubernetes
Docker
Docker
AWS
AWS
GCP
GCP
NestJS
NestJS
Angular
Angular
Spring
Spring
Java
Java
PostgreSQL
PostgreSQL
Terraform
Terraform

Trusted By Industry Leaders

L3
Interval.xyz
L3 Blockchain
MCP
Freelance
MCP Wallet
Crypto
Qredo
Crypto Custody
Infura
ConsenSys
Infura / Codefi
Swiss
Rolex
Swiss Luxury
CIB
BNP Paribas
CIB Banking
Automotive
BMW Munich
Automotive
Core
CGD
Core Banking
Telecoms
PT Inovação
Telecoms (Altice)

The Journey

Lead Developer

Pictet Technologies
January 2026 - Present
Luxembourg / Remote
  • Leading technical chapters and driving engineering excellence across distributed teams.
  • Architecting robust, scalable solutions and enforcing high-standard DevOps practices.
  • Leading recruitment interviews and technical screening for senior engineering chapters.
  • Mentoring senior engineers and fostering a culture of continuous learning and knowledge sharing.
JavaSpring BootGoLangKubernetesDockerAzure

Blockchain & Backend Architect (Stealth)

Interval.xyz
April 2024 - Present
USA
  • Research and deployment of a Layer 3 (L3) solution using OP Stack.
  • Created enterprise-grade modules for seamless L3 integration.
  • Architected and implemented a blockchain firewall to enforce granular enterprise policies (Geo-fencing, Whitelisting).
  • Created POCs for authenticating Web3/Web2 and transaction signing (Firebase, Auth0, Privy, MM).
GoLangTypeScriptOP StackKubernetesAWSKustomize

Founder / Lead Architect

Freelance - MCP Wallet
Ongoing
Remote
  • Created the MCP Wallet protocol, bridging AI agent capabilities with secure Web3 interactions.
  • Exploring the 'Agentic Web'-where LLMs autonomously manage assets via secure, verifiable wallets.
MCPWeb3LLMsGoLang

Senior Blockchain Engineer

Qredo
December 2022 - September 2023
Lisbon, Portugal
  • Integrated QChain with Stacks to enable asset locking, transaction monitoring, and settlement processing.
  • Architected and developed an abstract asset-locking (deposit and settlement) component on Layer 1.
  • Led the integration of multiple Cosmos chains (Atom, Kava, Osmosis, Celestia, etc.).
  • Refactored Qredo Block Explorer, improving throughput by 30%.
  • Conducted professional technical interviews and defined hiring standards for the blockchain engineering department.
GoLangCosmosSDKBlockchainREST APIsgRPCDockerKubernetesAWSPostgreSQL

Blockchain Engineer (Professional Services)

ConsenSys
November 2021 - December 2022
USA
  • Research and implementation of IaC for L1 and L2 blockchain networks (Starknet, Avalanche, Celo).
  • Built Data Availability Committee (DAC) infrastructure for Arbitrum Nitro.
  • Delivered high-stakes projects for ProtocolLabs and Codifi Assets RWA.
  • Implemented blockchain health checks for EVMs.
  • Performed technical recruitment interviews for senior protocol and frontend roles.
GoLangSolidityTypescriptInfuraTrufflePulumi

Senior Full-Stack Lead (Nearshore)

Rolex
2021
Switzerland / Remote
  • Led the digital transformation of specialized luxury management workflows via Bubble-Go (Switzerland).
  • Streamlined internal asset management systems, reducing manual processing time by 25%.
  • Modernized legacy logic into a responsive, high-security Node.js architecture.
  • Led technical interview processes for nearshore engineering talent.
Node.jsPostgreSQLAzureSecurity Hardening

Tech Lead

TechFirm Portugal
October 2020 - November 2021
Lisbon, Portugal
  • GoLang lead developer. Started a GoLang team, enforcing best practices.
  • Main activities: Architect, Development full-stack, Estimations/allocation of work tasks, Selection of team members.
GoLangk8sokdminikubekustomizeskaffoldgitlab

Technical Lead | Senior Software Engineer

BNP Paribas CIB
June 2019 - October 2020
Lisbon, Portugal
  • Architected modern microservices for Corporate and Investment Banking (CIB) systems, integrating NLP report analysis for automated insights.
  • Engineered real-time SGR feed data integration to stream mission-critical market data to front-end dashboards.
  • Developed an automated mail distribution system leveraging ML models for intelligent routing and prioritization.
  • Migrated legacy monolithes to a containerized K8s architecture using Go and Skaffold for accelerated development cycles.
  • Active member of the technical recruitment board, conducting high-level CIB engineering interviews.
ReactJavaGoLangSpring BootKubernetesSkaffoldKafkaDockerNLPML

Team Leader (Nearshore NTT Data)

BMW
June 2016 - September 2018
Lisbon, Portugal / Munich
  • Leading nearshore developer team working to BMW Munich.
  • Trainer in Everis Academy, delivering technical excellence sessions to senior engineers.
  • Conducted extensive recruitment interviews and technical tests for nearshore expansion.
  • Established an inclusive culture and career progression roadmap in a high-performance developer group.
JavaSpringAngularDockerRancherAgile

Senior Backend Specialist

CGD (Caixa Geral de Depósitos)
Pre-2016
Lisbon, Portugal
  • Optimized core banking services and redesigned payment processing modules to handle peak loads.
  • Performed Java performance tuning and Oracle DB optimizations.
Java EEOracle DBWebSphereEnterprise Security

Lead Architect / Software Engineer

PT Inovação (AlticeLabs)
September 2001 - June 2015
Aveiro Area, Portugal
  • A 14-year journey of continuous improvement and engineering excellence, delivering mission-critical value across 4 continents.
  • Architected performance-critical systems serving millions of subscribers across the Altice global network.
  • Mastered the lifecycle of complex systems, from initial concept to decadal maintenance.
  • Experienced technical interviewer for carrier-grade system engineering roles.
JavaPerformance ProfilingTelecom ProtocolsDistributed SystemsDevOps