Technical Lead/Solution Architect

Location: Noida (EST overlap 3-4 hours)Team: Platform Engineering - Safety & PresenceEmployment Type: Full-timePosition SummaryLead a small squad (2 senior full-stack engineers with shared DevOps/QA) to deliver a cloud-first, private-site safety/presence MVP in ~3 months and evolve it to a production ready system in ~6–7 months. Own architecture, security, and delivery for a real-time eventing & notifications platform (web push/SMS/email) fed by gateways and badges. LoRaWAN/ChirpStack is learn-on-the-job expectation, to reach hands-on proficiency within 2–3 weeks.Essential Functions (Role Responsibilities)Architecture & Delivery Ownership: Define and deliver the end-to-end pipeline (gateway → ingest → normalize → zone logic → multi-channel notifications → audit) with SLIs/SLOs.Cloud-First Private LNS: Stand up and operate a private Network Server (e.g., AWS IoT core, Things Stack, ChirpStack or another service on VMs/k8s) in the VPC; prefer Basics Station (TLS), support Semtech UDP.Data & API Contracts: Author OpenAPI specs, versioning strategy, and backward-compatible interfaces for a responsive webapp and/or PWA and partner systems.Security & Compliance: Enforce TLS, KMS-backed secrets, HMAC-signed webhooks, VAPID keys for web push, PII minimization, access controls.Productization Path: Plan and sequence accounts/RBAC, tenant/site model, licensing/entitlements, upgrades/rollback, diagnostics, and supportability.Team Leadership: Coach two senior full-stack ICs; collaborate tightly with in-house DevOps & QA; drive outcomes with crisp ADRs/runbooks.GenAI-Augmented Delivery: Use GenAI for scaffolding code/tests/docs and KT summaries; maintain review gates and quality bars.Essential Tasks (Day-to-Day)Stand up cloud LNS; create gateway onboarding templates (URIs, certs/keys), cellular fallback, buffering, and monitoring checklists.Implement ingest services (MQTT/webhook) with idempotency, retries/backoff, correlation IDs, and structured logging.Define event envelopes (SOS/telemetry) and BLE-assisted zone logic (RSSI bucketing/smoothing; confidence scoring); validate via walk tests.Build/oversee notification orchestration (web push via Service Workers/VAPID, SMS via MSG91, email via SES/SendGrid) with delivery receipts and audits.Guide the PWA operator console: floor-plan overlay, live feed, ack/escalation, filters/search, and “Reset Site” tooling.Establish observability: dashboards for p95 SOS latency, join/uplink confirm rates, gateway online %, notification success.Create and maintain ADRs, runbooks, and installer/onboarding docs; lead readiness reviews for Demo → Pilot → GA.Conduct design/PR reviews; unblock engineers; manage risk register and cut scope when needed to hit dates.(Multi region system architecture design know-how)Educational Qualifications & ExperienceRequired: Bachelor’s or Master’s degree in Computer Science, Electrical/Computer Engineering, Information Systems, or equivalent practical experience.7+ years building cloud or event-driven platforms (Node/TypeScript, Go, or C#) with Postgres (or similar), message/broker patterns, and production APIs (OpenAPI).Demonstrated experience building and operating SaaS products (production SLIs/SLOs, on-call/incident playbooks, release management).PreferredExposure to LoRaWAN (ChirpStack or The Things Stack, AWS IoT Core), Basics Station vs Semtech UDP, gateway onboarding at scale.Experience with web push (Service Workers/VAPID), SMS/email providers, BLE/beacon-driven zoning, and time-series stores (Timescale/ClickHouse).Background in multi-tenant architecture, entitlements/licensing, and customer onboarding for B2B SaaS.Core CompetenciesSystems Design & Reliability: Idempotency, rate limiting, pagination, backoff, correlation/traceability, HA/backup/restore.Security Mindset: Key/secrets management, TLS, HMAC, authN/Z, privacy-by-design.Delivery Leadership: Scope control, risk management, stakeholder communication, crisp documentation.Customer Empathy: Operator-first UX, fast incident triage, and measurable outcomes (latency, delivery success).Learning Agility: Ability to master LoRa fundamentals in a short period and translate them into robust runbooks.Tools & Technologies (nice-to-know; not all required day one)ChirpStack • Basics Station/UDP • MQTT/Webhooks • Node/TS or Go or C# • Postgres/Timescale • Redis/Queues • React/TypeScript PWA • Service Workers/VAPID • MSG91/Twilio • Amazon SES/SendGrid • OpenAPI/Swagger • Docker/k8s • Grafana/Prometheus/OpenTelemetry • KMS/Secrets Manager • ADRs/Docs-as-Code • GenAI copilots.Performance Outcomes (first 90 days)Day 30: Cloud LNS live; 2 gateways onboarded; event envelope & zone schema approved; OpenAPI v0 published; SOS observed E2E in staging; LoRa basics demoed by self.Day 60: Demo slice: SOS ≤10s p95, ack → push/SMS/email with receipts; 3–5 zones correct in walk tests; KPI dashboard live.Day 90: Hardened demo: retries/limits, audit timeline, PII review, gateway templates; Phase-B design (RBAC/licensing) signed off.Work ConditionsRemote-friendly within India; periodic travel might be required for gateway bring-up or field walk tests.Collaboration across time zones as needed for stakeholders.