Senior Software Engineer, Cryptography

Hatchit

Somerville, MA OR Washington, DC. Hybrid permanent

Posted: October 30, 2025

Required Skills

Job Description

hatch I.T. is partnering with VIA to find a Senior Software Engineer, Cryptography. See details below:

About the Role:
An impressive mission requires an equally impressive Senior Software Engineer, Cryptography
VIA is seeking a highly motivated Senior Software Developer specialising in Cryptography to join their team. You will design, implement, and automate secure, scalable microservices leveraging cutting-edge privacy and Web3 technologies. You will collaborate with Senior engineers and developers on : A product where passwordless login, decentralized identity and blockchain integration come together to provide the highest level of security to individuals and organizations.
Individuals who excel in this role are motivated by solving complex architectural challenges and championing software excellence in the intersection of cryptography, Web3, and cloud platforms. Are you ready to join VIA?

Responsibilities::
• Lead the design and development of secure, reliable microservices, applying best practices in software architecture
• Define, document, and drive the adoption of efficient end-to-end SDLC and CI/CD automation pipelines
• Proactively monitor, troubleshoot, and optimize the performance of deployed applications
• Integrate VIA's Web3 components and privacy-preserving technologies (e.g., cryptography, passwordless login, classical & post quantum cryptography, zero knowledge proofs)
• Develop and execute comprehensive automated testing strategies to ensure high software quality and robustness
• Continuously explore and integrate advancements in privacy, cryptography, and distributed systems
• Serve as a subject matter expert in privacy and security, guiding project delivery and technical choicesClearly articulate complex software designs and technical processes to diverse, cross-functional teams Serve as a subject matter expert in privacy and security, guiding project delivery and technical choices
• Clearly articulate complex software designs and technical processes to diverse, cross-functional teams

Requirements::
• Bachelor’s degree or higher in computer science, mathematics, engineering, or science
• 5+ years of relevant full-stack or backend development experience
• Strong experience with cloud-based microservices architecture, including Istio Service Mesh, zero-trust, and observability
• Experience developing RESTful APIs (e.g., FastAPI) secured by OAuth2/Auth
• Experience integrating asymmetric and/or symmetric encryption in applications
• Extensive knowledge of parallel processing, message brokers, and/or distributed task queues
• Working knowledge of Docker containers and Helm charts
• Ability to advocate for technical excellence and maintain high software engineering standards
• Proven ability to give and receive thoughtful feedback on design documents
• Previous experience leading an Agile team of developers (a plus)
• Exposure to blockchain systems, zero-knowledge proofs, or IETF RFCs (a plus)
• Working knowledge of data structures, algorithms, databases (SQL and NoSQL), and in-memory data storage (a plus)

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