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Location
In office (Bengaluru)
Seniority
Staff · 10+ years exp

First seen by Alion on Nov 9, 2026.

Overview
Company
Impact
Profile match
QNu Labs is a quantum-resilience company that provides quantum cryptography products and solutions for data security on the cloud and internet, leveraging quantum technologies.

Own the design, development, and delivery of core VPN and secure connectivity modules in QConnect—IPsec and TLS data and control planes and crypto-layer integration. Lead a team of 4-5 engineers, work closely with the architect and peer tech leads, and deliver features end-to-end: design documents, code, tests, release notes, production support, and security-certification readiness. This is a hands-on role; you code, review, debug, and make module-level architecture calls.


Responsibilities:

  • Design and develop IPsec and TLS VPN data and control planes, including integration with the crypto layer.
  • Make module-level architecture calls aligned with the architect's technical direction.
  • Own features end-to-end, design documents, code, tests, release notes, production support, and readiness for security certifications (FIPS, Common Criteria).
  • Drive quality gates toward fewer than 5 major defects and zero critical/blocker defects at release.
  • Lead 4-5 engineers, sprint ownership, code reviews, mentoring, and unblocking.
  • Collaborate closely with the architect, peer tech leads, QA, and L3 support.
  • Apply and teach high-productivity use of AI coding tools (Claude Code, Cursor, Copilot) across the team's workflow.
  • Lead customer-facing debugging and root-cause analysis for production issues.


Key Stakeholders and Collaboration:

  • Internal: the architect, VP of engineering, peer tech leads, QA, L3 support, and product management (CPO organization).
  • External: defense and enterprise customers during escalations and certification activities.


Requirements:

  • 8-12 years in software engineering, with 5+ years in VPN or secure connectivity product development.
  • Hands-on VPN protocol development: you have built or contributed to a commercial VPN codebase (strongSwan, OpenVPN, WireGuard, or proprietary). Protocol-level code, not configuration or operations.
  • Proven high-productivity use of AI coding tools (Claude Code, Cursor, Copilot); can demonstrate measurable output gains and teach the team to adopt the same workflow.
  • Deep IPsec knowledge: IKEv2, ESP, AES-GCM, PFS, DPD, X. 509 authentication, and tunnel lifecycle.
  • Applied crypto experience; classical (RSA, AES-256, TLS 1.3) or post-quantum (ML-KEM, ML-DSA) implementation and integration.
  • Security certification experience; FIPS 140-2 or 140-3, Common Criteria, or equivalent (preparing, testing, or shipping certified features).
  • Strong C/C++ and Rust (data plane) and Python or Go (control plane).
  • Linux networking internals; netfilter/nftables, XFRM, routing, namespaces, and packet flow.
  • Appliance development experience; build, debug, upgrade, and factory workflows.
  • NMS/EMS integration: SNMP v2/v3, NETCONF, RESTCONF, or gRPC telemetry.
  • Team leadership experience: led 4+ engineers with sprint and code-review ownership (scaled and scoped the map to Tech Lead).


Nice to have:

  • SD-WAN (link monitoring, path selection, policy routing) or SASE exposure.
  • Deeper post-quantum crypto work; hybrid key exchange, crypto-agility frameworks.
  • RHEL-based product development; ICSA Labs or defense-grade certification experience.


Who this is not for:

  • VPN administration/operations or cloud VPN configuration roles.
  • Generalist full-stack backgrounds without protocol-level development.
  • Management-only leads who no longer code; this is a hands-on role.


Capabilities and Ways of Working:

  • Ownership: you take a module from design to production and stand behind it.
  • Hands-on technical depth: You keep coding, reviewing, and debugging.
  • Execution discipline: predictable delivery against sprints and quality gates.
  • Team leadership and mentoring: you grow the engineers you lead.
  • Collaboration: across the architect, QA, support, and product.

Skills

IPsec, TLS, VPN

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