Job
- Level
- Senior
- Job Field
- IT, Network, Security
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Salary
- from 3.806 € gross/month
- Location
- Vienna
- Working Model
- Onsite
Job Summary
In this role, you will design scalable eQKD and QKaaS network solutions, lead technical workshops, and take ownership of POCs to translate customer requirements into effective solutions.
Job Technologies
Your role in the team
- The Solutions Architect is the technical authority in front of customers and the person who brings projects over the line.
- The role exists to earn the technical win: translating customer requirements into credible, production-grade eQKD and QKaaS network designs, integrating quantum key delivery with classical security and telecom infrastructure, and giving conservative technical buyers the confidence to commit.
- It is also the field-to-R&D conduit - the patterns you see in the field shape the roadmap.
- You sit inside the deal team with Account Executives, supply Marketing with technically accurate product input, and give the GTM & Partnerships Manager the foundations for partner certification.
- Architecture & design: turn customer requirements into scalable, secure eQKD/QKaaS network designs, reference architectures, and integration blueprints (with classical IT security and telecom infrastructure - PKI, VPN, SD-WAN, encryption layers, routing).
- Technical win: lead technical workshops and validation sessions with CISOs, network architects, and system integrators; own POCs end to end (e.g., inter-datacenter and inter-city link deployments).
- Deal support: partner with the Account Executives to provide technical authority throughout the cycle; author technical proposals, architecture documentation, and responses to RFPs and security questionnaires.
- Partner enablement: produce the reference architectures and integration patterns the GTM & Partnerships Manager needs to certify hosting and service-provider partners for QKaaS delivery.
- Roadmap feedback loop: capture field requirements, identify patterns across use cases, and work with product and R&D to prioritize what real deployments need.
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Our expectations of you
Qualifications
- A strong command of enterprise networking and IT security architecture; working knowledge of cryptographic concepts and secure-communication design principles.
- A proven ability to design and defend integration architectures in front of demanding technical buyers, and to simplify complexity for mixed business/technical audiences.
- A track record of delivering POCs and multi-party technical projects with integrators and customer engineering teams.
- Exposure to critical infrastructure, telecom, or public-sector environments.
- Fluent German and English.
Experience
- 6+ years in solutions architecture, technical pre-sales, or systems engineering for complex infrastructure, security, or networking products.
- Nice to have: familiarity with QKD / quantum-secure communications (or the ability to ramp fast on new physical-layer technology); experience integrating with carrier or datacenter network platforms (e.g. Cisco routing/optical, key-management systems); experience contributing to product roadmaps from field input.
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What we offer
- The role of technical authority on the most advanced deployments in quantum-secure communications, working directly with customers and partners.
- A first-year mandate to produce reusable reference architectures, convert at least one production-grade POC toward commercial rollout, and measurably influence the product roadmap.
- A collaborative, high-trust engineering culture with a genuine field-to-R&D loop - your input shapes what gets built.
- Work at the intersection of Nobel Prize-winning quantum physics and secure communications, helping protect global infrastructure for decades.
- Vienna HQ with flexible, family-friendly arrangements, tailored onboarding, and a dedicated mentor.
- The minimum gross salary for this position is €3,806.97 per month (x14, based on full-time employment) in accordance with the applicable collective agreement, plus a performance-based bonus.
- However, there is a willingness to offer a higher salary depending on experience and qualifications.
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Topics You Will Work On
Job Locations
About Your Employer
zerothird
Zerothird develops advanced communication solutions with a focus on quantum cryptography. The company combines academic excellence with engineering expertise to provide ultra-secure encryption keys.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Solutions Architect
- Salary
- from 3.806 € gross/monthEstimated net salary based on the gross salary in the job ad.from 2.629 € net/month
- Location
- Vienna
- Working Model
- Onsite
- Diversity
- Open for all genders
