Senior Software Engineer - Cryptography & Web3 | Zero-Trust

VIA; Somerville (MA); Hybrid; USD 150,000 - 200,000; Full time

Benefits offered by this job

Salary range

401K plan

Health benefits

Parental leave

Flexible vacation

Remote work options

Offsite events

Wellness program

Transit support

Team events

Job summary

VIA, a Boston-based mission-critical software company, seeks a Senior Software Engineer specializing in cryptography to design, implement, and automate secure, scalable microservices. You will work on VIA's Zero Trust Fabric, integrating privacy-preserving Web3 technologies and passwordless login to provide top-tier security in cloud platforms, including offline environments.

You will lead architecture, drive SDLC and CI/CD automation, and advocate for high engineering standards while

Qualifications

• 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 zero-trust design principles.
• Experience developing RESTful APIs (e.g., FastAPI) secured by OAuth2/JWT.
• Experience integrating asymmetric and/or symmetric encryption, hashing, and digital signatures in applications.
• Exposure to Web3 technologies such as smart contracts and multi-signature setups.
• 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, IETF RFCs, or FIPS/NIST/CNSA-validated cryptography (a plus).
• Exposure to Istio Service Mesh and observability tooling (a plus).
• Working knowledge of data structures, algorithms, databases (SQL and NoSQL), and in-memory data storage (a plus).

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 choices.
• Clearly articulate complex software designs and technical processes to diverse, cross-functional teams.

Skills

Cloud microservices

Zero-trust design

RESTful APIs

OAuth2/JWT

Cryptography

Web3

Docker

Kubernetes

Istio

CI/CD

Education

Bachelor’s degree or higher

Tools

Kubernetes

Istio

CI/CD pipelines

Job description

VIA, a Boston-based mission-critical software company, seeks a Senior Software Engineer specializing in cryptography to design, implement, and automate secure, scalable microservices. You will work on VIA's Zero Trust Fabric, integrating privacy-preserving Web3 technologies and passwordless login to provide top-tier security in cloud platforms, including offline environments.

You will lead architecture, drive SDLC and CI/CD automation, and advocate for high engineering standards while