Junior Solutions Architect

Blockstream seeks a Junior Solutions Architect in Lugano, CH, to design blockchain solutions for financial institutions. The role requires expertise in distributed systems, cryptography, and cloud platforms, with a focus on secure, scalable architectures for banking and digital assets.

The Junior Solutions Architect supports the end-to-end design of blockchain solutions for enterprise and institutional clients, translating business needs into technical architectures. Working within the Service & Enterprise Solutions team, the role ensures alignment with best practices in distributed systems, cryptography, and financial services integration.

Responsibilities

• Design and deliver blockchain-based solutions for banking, custody, payments, and treasury management applications
• Create secure, scalable architectures that integrate blockchain infrastructure with core financial systems
• Define technical blueprints including API design, data flows, event-driven systems, and integration patterns
• Make decisions on deployment models (cloud, hybrid, on-premise), consensus mechanisms, and security protocols
• Assess and choose blockchain platforms, protocols, and tools based on client needs and technical viability
• Ensure solutions meet cryptographic security, regulatory compliance, and industry standards
• Work with delivery, development, and DevOps teams to ensure architectures are implementable and maintainable
• Produce and update technical documentation such as architecture diagrams, system specs, and integration guides
• Identify and report architectural risks, technical dependencies, and performance issues
• Guide junior architects and developers on design patterns, blockchain best practices, and secure coding

Requirements

• 5 to 10 years of experience in solution architecture, platform engineering, or enterprise system implementation
• Solid grasp of blockchain, distributed systems, and cryptographic principles
• Experience designing multi-system platforms in regulated financial environments
• Practical experience with cloud platforms (AWS, Azure, or GCP) and modern deployment methods
• In-depth knowledge of API-based architectures, microservices, and event-driven systems
• Strong understanding of security protocols, encryption, authentication, and authorization
• Familiarity with DevOps, CI/CD pipelines, and infrastructure-as-code
• Excellent communication skills to explain technical topics to both technical and business audiences
• Proactive, collaborative mindset with experience working across teams and geographies, maintaining high-quality client engagement
• Must be fluent in Swiss German, German, and English

Nice to have

• Practical experience with blockchain platforms such as Bitcoin, Ethereum, or Hyperledger
• Knowledge of smart contract development and decentralized application (DApp) design
• Experience in digital asset custody, tokenization, or crypto payment systems
• Understanding of DeFi protocols, stablecoins, and Layer-2 scaling technologies
• Familiarity with regulatory frameworks for digital assets (MiCA, AML/KYC, securities rules)
• Experience integrating blockchain with core banking, payments, or treasury systems
• Programming skills in Python, Go, Rust, Java, or Solidity
• Blockchain certifications (e.g., Certified Blockchain Architect, Hyperledger)
• Experience with Kubernetes, Docker, and container orchestration
• Interest in advancing to Principal Architect or technical leadership positions

About the company

Blockstream, founded in 2014 by Dr. Adam Back and a team of cryptographers and engineers, is a leading Bitcoin company. It develops advanced infrastructure for enterprises, institutions, and individual users, including self-custody solutions, Bitcoin-based financial products, second-layer scaling, and enterprise blockchain platforms.

• Founded by Bitcoin pioneers with a passion for blockchain innovation
• Industry leader in Bitcoin infrastructure and enterprise-grade blockchain solutions
• Focus on cutting-edge technologies including self-custody, financial products, and scaling solutions