Senior Blockchain System Architect Lisboa

Join to apply for the Senior Blockchain System Architect role at Idea
Soft. io.

We are seeking a Senior System Architect to lead the technical architecture of an innovative
- based AI infrastructure platform. The role requires deep expertise in distributed systems, blockchain architecture, and cloud infrastructure to design and implement scalable solutions that bridge blockchain technology with AI model execution.

Project Tech Stack

• Programming Languages: Go, Python, Rust
• AI & ML Frameworks: Tensor
  Flow, Py
  Torch, ONNX
• Blockchain Frameworks: Cosmos SDK, Tendermint, Cosm
  Wasm
• Databases & Storage: Postgre
  SQL, IPFS, Redis
• Infrastructure & Orchestration: Kubernetes, Docker, Terraform
• Cloud & GPU Computing: AWS/GCP AI/ML services, Nvidia CUDA, Tensor
  RT
• Version Control: Git, Git
  Hub

Requirements

Blockchain & Distributed Systems

• Production Experience: Designing and implementing blockchain systems using frameworks like Cosmos SDK, Ethereum, or similar
• Consensus Protocols: Deep understanding of Byzantine Fault Tolerance, Tendermint, or equivalent consensus mechanisms
• Smart Contracts: Experience architecting and deploying smart contract systems and blockchain transaction flows
• Cryptography: Knowledge of digital signatures, public key infrastructure, and blockchain security protocols
• Distributed Architecture: Proven experience with distributed systems, eventual consistency, and fault tolerance patterns

AI/ML Infrastructure

• Model Deployment: Production experience deploying, scaling, and managing AI/ML models in containerized environments
• Model Serving: Experience with inference serving frameworks (Tensor
  Flow Serving, Torch
  Serve, ONNX Runtime, or similar)
• Container Orchestration for AI: Expert-level experience running AI workloads on Kubernetes including GPU scheduling and resource management
• Model Lifecycle Management: Experience with model versioning, A/B testing, rollback strategies, and monitoring model performance
• AI Resource Management: Knowledge of GPU/TPU allocation, memory optimization, and compute resource scheduling for AI workloads
• Data Pipeline Architecture: Experience designing ETL/ELT pipelines, data lakes, and storage systems for AI training and inference

Cloud & Infrastructure

• Container Orchestration: Expert-level Kubernetes experience, including
  - cluster and hybrid cloud deployments
• Cloud Platforms: Production experience with AWS, GCP, or Azure, including networking, compute, and storage services
• Infrastructure as Code: Proficiency with Terraform, Helm, or similar infrastructure automation tools
• Networking: Deep understanding of container networking, service meshes, ingress controllers, and cloud networking
• Security: Experience implementing authentication systems, identity management, and secure communication protocols

Software Engineering

• Programming Languages: Strong proficiency in Go for blockchain and infrastructure development
• Secondary Languages: Working knowledge of Python, Java
  Script/Type
  Script for service integration and tooling
• API Design: Experience designing RESTful APIs, Graph
  QL, and
  - service communication protocols
• Database Systems: Knowledge of both SQL and No
  SQL databases, distributed data storage patterns
• Dev
  Ops: Experience with CI/CD pipelines, automated testing, and deployment automation

Soft Skills

• Ability to work in a fast‑paced environment
• Strong communication and stakeholder alignment skills
• Ability to explain complex architectural concepts clearly
• Open to feedback, collaborative, proactive

Technical Experience (Would be a plus)

• Knowledge of IPFS, decentralized storage systems, or
  - addressable storage
• Understanding of economic models, tokenomics, and blockchain‑based resource allocation
• Experience with Web
  Assembly (WASM) for blockchain runtime environments
• Background in high‑frequency trading systems, financial infrastructure, or marketplace platforms

Leadership & Collaboration

• Track record of leading technical teams through complex system implementations
• Experience with agile development methodologies and sprint‑based delivery
• Strong communication skills for explaining technical concepts to non‑technical stakeholders
• Experience with open‑source development and community collaboration
• Background in mentoring junior developers and establishing technical standards

Responsibilities

• Design and evolve system architecture for a blockchain‑based AI infrastructure platform
• Define integration patterns between blockchain protocols and AI execution environments
• Establish architectural standards, patterns, and best practices across development teams
• Lead technical decision‑making for complex distributed systems challenges
• Collaborate with development teams to ensure the architectural vision is properly implemented
• Architect blockchain‑based smart contract systems and transaction processing workflows
• Design consensus mechanisms, state management, and cross‑chain communication protocols
• Implement cryptographic authentication and authorization systems
• Develop blockchain integration patterns for external systems and APIs
• Ensure security, scalability, and performance of distributed blockchain networks
• Design containerised AI model deployment and execution architectures
• Architect AI model registry, versioning, and distribution systems
• Implement resource management and auto‑scaling for AI workloads
• Design inference serving architectures for high‑throughput AI model execution
• Establish AI model security, access control, and usage monitoring systems
• Architect data pipelines and storage systems for AI training and inference
• Design a multi‑cloud and hybrid cloud architecture for distributed AI workloads
• Architect container orchestration and microservices deployment strategies
• Implement auto‑scaling, load balancing, and resource management systems
• Design network topology, security policies, and inter‑service communication
• Establish monitoring, logging, and observability across the distributed infrastructure
• Lead a technical team of 5+ developers across blockchain, infrastructure, and application domains
• Coordinate architecture decisions across multiple technology stacks and development streams
• Mentor team members on system design principles and architectural best practices
• Drive technical roadmap planning and implementation, milestone delivery
• Facilitate cross‑team collaboration and resolve technical integration challenges

We Offer

• Competitive compensation
• Social package (24 working days of annual leave, 5 paid sick days)
• Flexible working hours
• Challenging projects in diverse business domains and a variety of tech stacks
• Personal development and professional growth opportunities
• Work with talented, ambitious, and family‑feel teams
• Educational possibilities: corporate courses, knowledge hubs, and in‑house English classes
• Compensation for professional certification and support for learning activities
• Opportunity to choose the IT equipment you like
• Corporate social responsibility initiatives

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

• Engineering and Information Technology
• Design

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