Senior Software Engineer, Cryptography

VIA•Somerville, MA

4d•$150,000 - $200,000•Hybrid

About The Position

As a key technical contributor at VIA specializing in Cryptography, 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 VIA's Zero Trust Fabric: A product where passwordless login, decentralized identity and blockchain integration come together to provide the highest level of security to individuals and organizations. You will excel in this role if you are motivated by solving complex architectural challenges and championing software excellence in the intersection of cryptography, Web3, and cloud platforms.

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 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

Nice To Haves

Previous experience leading an Agile team of developers
Exposure to blockchain systems, zero-knowledge proofs, IETF RFCs, or FIPS/NIST/CNSA-validated cryptography
Exposure to Istio Service Mesh and observability tooling
Working knowledge of data structures, algorithms, databases (SQL and NoSQL), and in-memory data storage

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

Benefits

Competitive benefits
Flexible work options
Individualized mentoring and growth opportunities
401K plan with up to 5% employer contribution
A fully funded, top-tier health benefits plan, including vision and dental coverage, fully covered from day one, for your whole family
Up to 24 weeks paid parental leave
A 4-week paid ramp-back program
A $10K family forming benefit (covering fertility treatments, adoption, and surrogacy)
Flexible Vacation Policy with no set annual limit or accrual period
Summer Fridays
An extended holiday period in December
Flexibility to work from home as needed
Access to three well-located offices, designed for collaboration and stocked with everything you could need
Opportunities to work remotely from eligible locations for up to 2 months per year
Individualized growth opportunities, including internal and external mentorship panels, custom goals and feedback sessions, and/or access to learning and development programs, including VIA’s unrivaled leadership program
A dedicated wellness advisor to help you navigate the programs and opportunities available at VIA
Benefits to support commuting costs
In-person events to foster team bonding and collaboration across different teams