Junior Solutions Architect
- Level
- Junior
- Work type
- On-site · Lugano
Not stated in the posting: salary, visa.
Open. First seen 2 October 2026.
About the role
Blockstream's standard text
Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers who are passionate about Bitcoin and its potential to change the world. Today, Blockstream is the leading Bitcoin company, providing cutting-edge infrastructure solutions for enterprises, institutions, and individual Bitcoin users. We develop industry-leading Bitcoin self-custody solutions, Bitcoin-based financial products, second-layer scaling technologies, and enterprise-grade blockchain infrastructure.
We are seeking a Junior Solutions Architect with strong technical aptitude and an eagerness to learn, who will support the team in designing and building secure, scalable blockchain and digital asset solutions for enterprise and institutional clients. This role supports the end-to-end architecture process, from assisting with initial design through documentation and deployment, ensuring solutions adhere to technical best practices for distributed systems, cryptography, and financial services integration.
Within the Service & Enterprise Solutions organization, the Junior Solutions Architect works closely with Solutions Architects, Delivery, Engineering, Product, and Client teams. This role will assist in translating business requirements into robust technical architectures and will gain hands-on experience in ensuring that blockchain solutions are secure, scalable, and operationally sound for banking and institutional environments.
What You'll Be Doing (Responsibilities):
- 3-5 years architecture experience, technical aptitude, eager to learn
- Design and deliver end-to-end blockchain and digital asset solutions for banking, custody, payments, and treasury management use cases
- Architect secure, scalable platforms that integrate blockchain infrastructure with core banking and financial systems
- Define technical architecture including API design, data flows, event-driven systems, and integration patterns
- Make platform-level design decisions on deployment models (cloud, hybrid, on-premise), consensus mechanisms, and security protocols
- Evaluate and select appropriate blockchain platforms, protocols, and tools based on client requirements and technical feasibility
- Ensure solutions adhere to cryptographic security standards, regulatory compliance requirements, and industry best practices
- Collaborate with delivery teams, developers, and DevOps engineers to ensure architectures are buildable, testable, and operable
- Create and maintain technical documentation including architecture diagrams, system specifications, and integration guides
- Identify and escalate architectural risks, technical dependencies, and performance bottlenecks
- Mentor junior architects and developers on architectural patterns, blockchain best practices, and secure coding principles
What We Look for In You (Required Qualifications):
- 5-10 years of experience in solution architecture, platform engineering, or enterprise system implementation
- Strong understanding of blockchain technology, distributed systems, and cryptographic principles
- Experience designing multi-system platforms in regulated financial services environments
- Hands-on experience with cloud platforms (AWS, Azure, or GCP) and modern deployment practices
- Deep expertise in API-based architectures, microservices, and event-driven systems
- Strong knowledge of security protocols, encryption, authentication, and authorization mechanisms
- Understanding of DevOps practices, CI/CD pipelines, and infrastructure-as-code
- Excellent communication skills with ability to present complex technical concepts to both technical and business stakeholders
- Self-starter with proven ability to work collaboratively across multiple teams and geographies, demonstrating high-quality and high-touch customer engagement throughout all phases of delivery
- Languages: Swiss German, German, and English required; French and/or Italian a plus
- Location: Switzerland, with focus on Zurich, Zug, Lugano
Nice To Haves (Preferred Qualifications):
- Hands-on experience with blockchain platforms (Bitcoin, Ethereum, Hyperledger, or similar)
- Knowledge of smart contract development and decentralized application (DApp) architecture
- Experience with digital asset custody, tokenization, or crypto payment systems
- Understanding of DeFi protocols, stablecoins, and Layer-2 scaling solutions
- Familiarity with regulatory frameworks for digital assets (MiCA, AML/KYC, securities regulations)
- Experience integrating blockchain with core banking systems, payments platforms, or treasury management systems
- Programming proficiency in languages like Python, Go, Rust, Java, or Solidity
- Blockchain certifications (Certified Blockchain Architect, Hyperledger, or similar)
- Experience with Kubernetes, Docker, and container orchestration
- Interest in progressing into Principal Architect or technical leadership roles
Blockstream's standard text
Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers who are passionate about Bitcoin and its potential to change the world. Today, Blockstream is the leading Bitcoin company, providing cutting-edge infrastructure solutions for enterprises, institutions, and individual Bitcoin users. We develop industry-leading Bitcoin self-custody solutions, Bitcoin-based financial products, second-layer scaling technologies, and enterprise-grade blockchain infrastructure.
What this role asks for
Particular to this role
Java · Microservices · Solidity
Rare in Blockstream's other 26 open postings.
Standard for solutions / sales engineering roles
Python
Common in solutions / sales engineering postings at any company.
In most of Blockstream's ads
Blockchain
Named in most of its open postings, whatever the role.
81% of this description is written for the role. The rest is Blockstream's standard text, folded away below.
Read against Blockstream's other open postings on this site.
The team: Service & Enterprise Solutions HIRES STEADILY
This role is one of 15 open in Service & Enterprise Solutions. 2 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Blockchain (14 of 15), Golang (7 of 15), Python (7 of 15), AWS (6 of 15), Rust (6 of 15), Azure (5 of 15), CI/CD (5 of 15)
OTHER ROLES ON THIS TEAM
- Technical Solutions Consultant (Pre-Sales) posted Sep 23
- Technical Solutions Consultant (Pre-Sales) posted Sep 23
- Forward Deployed Engineer posted Aug 21
- Forward Deployed Engineer posted Aug 21
- Forward Deployed Engineer posted Aug 21
- Technical Solutions Consultant (Pre-Sales) posted Aug 21
- Director, Platform and Integration Lead posted Mar 24
- Software Engineer, Blockchain & Distributed Systems posted Feb 11
- Solutions Architect posted Feb 10
- Project Manager posted Feb 10
- DevOps Engineer posted Feb 10
- Product Owner posted Feb 10
- Business Analyst posted Feb 10
- Project Manager posted Feb 10
From the team and dates on Blockstream's own job board.
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