Do you design hardware, or only the software on it?

Software. We work on firmware, edge applications, connectivity and the cloud platform behind them, and we partner with your hardware team or an ODM for the board itself. Being explicit about that boundary early matters: projects where the software team is quietly expected to make hardware decisions tend to discover it at the worst possible moment.

How do you handle over-the-air updates safely?

A/B partitions with automatic rollback, signed images, and staged rollouts that start with an internal fleet before reaching customers. The rule we hold to is that a failed update must never brick a device — if the new image does not boot and check in, the bootloader falls back to the previous partition. Devices in the field are far more expensive to recover than servers.

Our devices have intermittent connectivity. Does that break everything?

It should not. We design for store-and-forward: the device buffers locally, timestamps at the source rather than at ingest, and reconciles when the link returns. Anything that assumes a live connection — synchronous commands, server-generated timestamps, real-time-only dashboards — becomes a permanent source of data gaps in the field.

Which protocols do you use for device connectivity?

MQTT for most fleet telemetry because it is lightweight and handles unreliable links well; CoAP where power budgets are severe; HTTPS where the device is powerful enough and the operations team already knows the tooling. For industrial IT/OT work we bridge Modbus, OPC-UA and BACnet into the same pipeline rather than replacing the plant systems.

How do you secure devices that sit outside your network?

Per-device identity with certificates rather than a shared key, secure boot and signed firmware, mutual TLS to the platform, and the ability to revoke a single device without touching the rest of the fleet. A shared credential across a fleet means one extracted device compromises every device you have shipped.

Can you take over an existing device fleet?

Yes, and it is a common starting point. We begin with an audit of what is deployed, how it updates, and what the failure modes look like in the field. Usually the first work is establishing safe OTA and real observability, because without those any other change to a deployed fleet is a gamble.

SyncTrix

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Service · Embedded & IoT

Fleets you can update safely.

Firmware, connectivity and the cloud platform behind connected products - designed so a device in the field survives a bad network, a bad update and a stolen unit without becoming a truck roll.

Book a strategy call See capabilities

MQTT · CoAPA/B OTA with rollbackPer-device identity

A/B partitions

A failed update can never brick a device

Store & forward

Intermittent links do not lose data

Per-device certs

Revoke one unit, not the fleet

Staged rollout

Internal fleet first, customers last

Capabilities

What we actually deliver.

Firmware & edge software

Embedded Linux and RTOS applications written for constrained hardware, where a memory leak is a field failure rather than a restarted pod.

Embedded Linux, Zephyr, FreeRTOS
C, C++, Rust and Python at the edge
Power and memory budgets respected

OTA update pipelines

Signed images, A/B partitions and automatic rollback, staged through an internal fleet before any customer device sees a new build.

Signed images with secure boot
Automatic rollback on failed check-in
Staged and canary rollouts by cohort

Connectivity & telemetry

MQTT and CoAP pipelines that assume the link will drop, with source timestamps and reconciliation so gaps close rather than persist.

MQTT, CoAP, HTTPS by device capability
Store-and-forward buffering on device
Timestamps at source, not at ingest

IT/OT & industrial

Modbus, OPC-UA and BACnet bridged into a modern pipeline, without replacing the plant systems that already run the floor.

Modbus, OPC-UA, BACnet gateways
Existing SCADA left in place
Edge processing where bandwidth is scarce

How we engage

A sequence that de-risks delivery.

Audit the fleet and the field

What is deployed, how it updates and how it actually fails. On existing fleets this is where the real constraints surface, not in the spec.

Make updates safe first

Before any feature work, OTA with rollback and real observability. Without those, every change to a deployed fleet is a gamble.

Build for the bad network

Buffering, source timestamps and reconciliation designed in. Anything assuming a live link becomes a permanent gap in field data.

Roll out in cohorts

Internal devices, then a canary cohort, then the fleet - with automatic halt on error-rate regression at each stage.

Outcomes

What clients measure afterwards.

No bricked devices

Rollback on failed boot means a bad image is a retry, not a recall.

Truck rolls avoided

Remote diagnosis and update for problems that previously needed a site visit.

Data gaps closed

Buffering and reconciliation, so patchy connectivity stops corrupting your history.

Fleet observable

Per-device health, firmware version and connectivity in one view.

Proof

Work we have actually delivered.

HRMS & biometric attendance

Built HR & payroll software with reliable biometric attendance.

155: Pages · 140 API routes
47: Data models (Prisma)

Read the case study

Server fleet & uptime

Kept the whole app online even when a server goes down.

6 svcs: 5 DBs, isolated
4.2 ms: Postgres round-trip

Read the case study

Stack

Tools we work fluently in.

Embedded

Embedded Linux
Zephyr
FreeRTOS
Yocto
Buildroot

Languages

C
C++
Rust
Python
Go

Connectivity

MQTT
CoAP
LoRaWAN
BLE
Cellular

Platform

AWS IoT
Azure IoT Hub
Mender
Balena
Grafana

Why SyncTrix

Senior engineers, accountable outcomes.

Safe updates before features

On an existing fleet we fix OTA and observability first. Shipping features onto a fleet you cannot safely update is borrowing against the future.

We assume the network is bad

Field connectivity is intermittent, slow and occasionally hostile. Systems designed for the office network lose data permanently.

Per-device identity, always

One shared credential across a fleet means one extracted device compromises every unit you have ever shipped.

Honest about the hardware line

We do software and say so upfront, and work alongside your hardware team or ODM rather than discovering the gap mid-project.

FAQ

Questions, answered.

The questions product and engineering leaders ask us most often before an embedded or connected-product engagement.

Software. We work on firmware, edge applications, connectivity and the cloud platform behind them, and we partner with your hardware team or an ODM for the board itself. Being explicit about that boundary early matters: projects where the software team is quietly expected to make hardware decisions tend to discover it at the worst possible moment.

Next step

Book a device call - leave with your field risks.

A 45-minute session with a senior engineer. We review your fleet, your update path and your connectivity assumptions, and identify what would hurt most in the field - and you leave with that, whether you engage us or not.

Book the call Explore all servicesFirmware · OTA · MQTT · IT/OT

Contact

Tell us about your project.

Briefs, NDAs, architecture reviews, anything goes. A senior engineer responds within 24 hours.

Email
[email protected]
Phone
+91 99228 74956
Studios
Pune · Hyderabad · Bangalore
San FranciscosoonNew Yorksoon

What happens next

1 · A senior engineer reviews your brief within 24 hours.
2 · We schedule a 30-minute discovery call.
3 · You receive a written proposal in 48-72 hours.