
Hi T***m,
I’m J***e, an HR Recruiter at StrategyBrain. I came across your profile and was really impressed by your hands-on beekeeping work at I***k combined with your CTO experience at Z***G. We’re currently partnering with B***G to fill a Director of IoT and Sustainable Agriculture Solutions role,an opportunity to lead IoT-based hive monitoring, data analytics, and sustainable ag innovation.
Would you be interested in a brief chat to explore this further?
Looking forward to your thoughts!
Best,
J***e
Hi J***e, thanks for reaching out! The Director of IoT and Sustainable Ag role at B***G sounds like a great fit with my beekeeping and CTO background,I'd love to chat. When would be a good time for you?


Hi T***m,
Great to hear you’re interested! How does a quick call tomorrow (Tuesday) at 3:00 PM CEST or Wednesday at 10:00 AM CEST work for you? Let me know which slot suits, and I’ll send a calendar invite.
In the meantime, here’s a bit more about the role and B***G:
• Company & Mission
, Swiss agritech startup (50 people) dedicated to IoT solutions that empower beekeepers and safeguard pollinators.
, Collaborative, mission-driven culture focused on innovation and sustainability.
• Director of IoT & Sustainable Agriculture Solutions
1. Lead design/implementation of hive-monitoring systems (hardware sensors + cloud).
2. Oversee software architecture, data-analytics pipelines and dashboards to optimize hive health.
3. Partner with apiary operations and field teams to align tech with beekeeping best practices.
4. Manage and mentor engineers, data scientists and agronomists on scalable, mission-critical products.
5. Define the strategic IoT roadmap, driving continuous innovation in sustainable ag offerings.
• Why this fits you
, Leverage your hands-on beekeeping experience to guide sensor design and field integration.
, Build on your CTO background to shape software architecture and data strategy.
, Opportunity to grow into a senior leadership role at a fast-moving startup with global impact.
Before our call, do you have any questions about the team, tech stack, or growth opportunities? Looking forward to our conversation!
Best,
J***e
HR Recruiter, StrategyBrain
Wednesday at 10:00 AM CEST works for me. Could you share a bit about the current IoT team size and the core tech stack behind your monitoring platform? Also, who would I be partnering with most closely on the apiary operations side?


Hi T***m,
Great,Wednesday at 10:00 AM CEST is locked in. I’ll send over the calendar invite in a moment.
Here’s a quick overview:
• IoT Team Size
• Currently a tight-knit group of six: two embedded/hardware engineers, two full-stack developers, one data engineer and one QA specialist.
• Core Tech Stack
• LoRaWAN-enabled STM32-based sensor nodes
• AWS IoT Core for device management
• Python/Node.js microservices powering our data pipelines
• SQL data warehouse for long-term storage
• React/D3.js dashboard for real-time visualization
• Apiary Operations Partnership
• You’ll work most closely with our Head of Apiary Operations,who leads field trials and best-practice integration,and a small team of senior apiary specialists.
Looking forward to diving deeper on Wednesday!
Best regards,
J***e
HR Recruiter, StrategyBrain
Thanks, J***e,this is super helpful. As someone who’s built microservices and keeps hives, I’m curious: how do you handle OTA firmware updates and network reliability for those STM32 LoRaWAN nodes? And which hive-health KPIs drive your React/D3 dashboards, plus what’s your usual collaboration cadence with the Apiary Ops team?


Hi T***m,
Great questions,here’s a bit more color before our call:
1. OTA Updates & Network Reliability
- We leverage AWS IoT Core’s device-management and Jobs APIs to stage signed STM32 firmware images. Nodes periodically check in (Class A) and,where coverage allows,switch to Class C to receive full-image fragments. We implement a blockwise transfer with CRC checks and automatic retries. On the network side, we’ve deployed multiple LoRaWAN gateways across our apiaries (with overlap in critical zones) and tuned adaptive data-rate (ADR) settings to optimize link budget and minimize packet loss.
2. Hive-Health KPIs in the Dashboard
- Our React/D3 dashboards spotlight:
• Internal temperature & humidity (core vs. ambient delta)
• Hive weight trends (daily gain/loss)
• Battery voltage & solar-charge rate
• Acoustic activity index (bee buzz patterns)
• CO₂ concentration spikes
- We surface anomaly flags (e.g. sudden weight drop or temp deviation) and trending alerts to help field teams prioritize inspections.
3. Collaboration Cadence with Apiary Ops
- Weekly 30-minute syncs with our Head of Apiary Ops to review field data, adjust sensor thresholds, and plan onsite trials
- Monthly joint site visits for hardware validation and beekeeping best-practice alignment
- Daily Slack channel for real-time troubleshooting and data-quality alerts
Hope that helps,let me know if you’d like to dive deeper on any of these or connect directly with our Head of Hardware or Apiary Ops. Looking forward to chatting Wednesday at 10:00 AM CEST!
Best,
J***e
HR Recruiter, StrategyBrain
Thanks, this is super helpful,just curious: what’s your rollback strategy if an OTA update fails its CRC or only partial fragments land? And how do you calibrate the acoustic activity index across different hive breeds? Lastly, when an anomaly flag pops up, how do your data engineers and Apiary Ops team triage and resolve it?


Hi T***m,
Great questions,here’s a deeper look:
1. Rollback Strategy for OTA Failures
• Dual-bank bootloader: devices keep a “golden” firmware image in reserve.
• CRC & fragment checks: if a block fails CRC or the transfer times out, the node automatically aborts and re-requests only the missing segments.
• Safe fallback: after three retry attempts, the updater flags the image as bad and reboots into the last known good firmware. A new update job is queued during the next maintenance window.
2. Calibrating the Acoustic Activity Index
• Breed-specific baselines: we record buzz patterns across our most common hive strains (Buckfast, Carnica, etc.) under controlled conditions.
• Feature extraction & ML: our data scientists analyze frequency, amplitude and temporal patterns, then train models that output a normalized activity score.
• Field validation loops: we periodically compare index readings against on-site inspections (entrance counts, frame checks) and adjust thresholds to account for seasonal or behavioral shifts.
3. Anomaly Triage Process
• Automated prioritization: incoming flags (e.g. temp spikes, weight drops) hit our alerting pipeline and are scored by severity.
• Data engineer review: engineers cross-check raw telemetry for sensor artifacts or transmission glitches.
• Apiary Ops follow-up: genuine anomalies trigger a task in our ticketing system. Apiary specialists perform targeted inspections, log their findings, and feed observations back into our analytics rules for continuous refinement.
If you’d like a deep dive, I can connect you with our Head of Firmware or Lead Data Engineer. Otherwise, looking forward to unpacking this further on Wednesday at 10:00 AM CEST!
Best,
J***e
HR Recruiter, StrategyBrain
Thanks, J***e,super insightful. As someone who’s managed firmware across multiple STM32 revisions, how do you handle versioning and compatibility checks when rolling out OTA to mixed-hardware fleets? Also, on the ML side, do you retrain your acoustic activity models per apiary or globally, and what’s your typical retraining cadence?


Hi T***m,
Great questions,here’s how we tackle both:
1. Versioning & Compatibility in Mixed Fleets
- We tag every firmware build with a clear version ID and store corresponding hardware-revision metadata in AWS IoT Core (via Device Shadows). Before kicking off an OTA job, our deployment service filters devices by their revision tag against a compatibility matrix.
- We roll out updates in staged cohorts (5,10% of devices) to validate compatibility and monitor success metrics. If CRC checks or feature-flag validations fail, the job pauses automatically and triggers an alert. Failed nodes revert to the last known good image (dual-bank bootloader) and rejoin the next safe rollout window.
2. Acoustic ML Retraining Strategy
- Global Base Model: We aggregate data from all apiaries and perform a full-model retraining quarterly to capture major behavioral shifts.
- Local Fine-Tuning: Every 4,6 weeks, we fine-tune the model’s last layers on site-specific acoustic snippets (to account for climate, hive strain, seasonal patterns). This two-tier cadence keeps our activity index both broadly robust and locally accurate.
If you’d like to dive deeper, I can arrange a technical sync with our Lead Firmware Engineer or Head of Data Science before or right after our scheduled call. Just let me know!
Looking forward to your thoughts,and to our chat on Wednesday at 10:00 AM CEST.
Best,
J***e
Nice,I’ve wrangled multiple STM32 revisions in my hives at I***k, so I’m curious: how do you automate and maintain that compatibility matrix in AWS IoT Core as new hardware revisions roll in? And on the acoustic ML side, do you monitor drift between your global base model and the local fine-tuned versions, or is retraining purely on a calendar schedule?


Hi T***m,
Great questions,here’s how we handle both:
1. Automating & Maintaining the Compatibility Matrix
- Every STM32 build is tagged with a hardware-revision ID in our CI/CD pipeline. On publish, a Lambda function picks up new revision metadata and updates a DynamoDB-backed compatibility table.
- In AWS IoT Core we use Thing Groups and Device Shadow tags to classify devices by revision. Before any OTA job, our deployment service queries that table (via Fleet Indexing) and only pushes to compatible cohorts.
- As new revisions roll in, the same build-triggered Lambda updates the matrix automatically, and a suite of automated regression tests in AWS Device Farm validates compatibility before broader rollout.
2. ML Drift Monitoring vs. Calendar Retraining
- We run continuous drift checks on local fine-tuned models by comparing their output distributions to the global base model using statistical divergence metrics (e.g. KL-divergence, prediction error).
- If drift exceeds a threshold, a fine-tuning job is triggered immediately for that apiary. Otherwise, we stick to our quarterly full-base retraining and 4,6-week local fine-tune cadence.
- All drift alerts and retraining metrics feed into our dashboard so data scientists and apiary specialists can review and adjust thresholds in real time.
Would you like to hop on a brief technical sync with our Lead Firmware Engineer or Head of Data Science to walk through our automation pipeline and drift dashboards? Looking forward to diving deeper on Wednesday at 10:00 AM CEST.
Best,
J***e