A BLUE THING IN THE CLOUD

An engineering company for products where hardware and firmware cannot be separated

ABTC is a Valencia-based electronics and embedded software company founded by Javier Longares after more than two decades in professional product development. We work with companies in Europe and international markets to create, recover and industrialise connected electronic devices.

Our name reflects the technologies that shaped the company: low-power wireless devices, Bluetooth and IoT. Our scope has grown, but the principle remains the same. We bring the people designing the PCB, radio platform and embedded software into the same technical conversation, because the hardest failures usually appear at those boundaries.

What we do

We provide end-to-end embedded engineering: product feasibility and architecture, component selection, PCB and RF design, production-grade firmware, prototype bring-up, verification and transfer to manufacturing. We can own the complete development or reinforce a client team in the specialist areas where risk is highest.

Recognised platform expertise

ABTC is a Nordic Semiconductor Design Partner and a Qorvo UWB Partner. We are an active member of the International SparkLink Wireless Short-Range Communication Alliance (iSLA) and one of the early engineering companies in Europe building practical capability around SparkLink/NearLink.

These relationships complement—not replace—independent engineering judgment. We select platforms according to product requirements and remain responsible for the integration details that determine whether the complete device is reliable.

Reusable technology, custom outcomes

ABTC maintains reusable internal hardware, firmware and verification foundations that can shorten early engineering work without creating a public product or availability commitment.

Clients are never forced into a predetermined module. We design fully custom electronics and firmware whenever RF geometry, size, cost, interfaces, certification or production volume requires a different solution.

What clients should expect from us

Engineering honesty

Risks, unknowns and trade-offs are made visible. A best-case demonstration is not presented as production evidence.

Maintainable work

Hardware sources, code, build information, interfaces and decisions are structured so another engineer can continue the product.

Measured progress

Reviews, test results, prototypes and documented issues provide evidence of maturity beyond percentage-complete reporting.

Long-term thinking

Sourcing, updates, diagnostics, production test and field support are considered while architecture decisions are still flexible.

Nordic Semiconductor Design PartnerQorvo UWB PartnerEIBTiSLA memberVaSiC member

INDEPENDENT DELIVERY EVIDENCE

A public record of engineering work

ABTC does not publish confidential client projects without permission. Independent public profiles nevertheless provide a verifiable record of long-term delivery, repeat work and client satisfaction.

ABTC on Upwork

100% Job Success · Top Rated

$100K+ earned · 2,418 hours · 27 jobs

The public agency profile connects ABTC with completed electronics, PCB and embedded-firmware work for international clients.

View the ABTC agency profile

Javier Longares on Upwork

100% Job Success · Top Rated Plus

4.9/5 · 55 jobs · 4.4K hours

Javier’s public profile records the engineering history from which ABTC was created and links the founder directly to the company’s technical work.

View Javier’s public profile

Google Business Profile

Feedback from identifiable clients

Public company reviews

The Google Business profile provides an additional independent source for client feedback and confirms ABTC’s public business identity.

Read the Google reviews

Upwork figures verified on 23 July 2026. Live profile values may change as new projects are completed.

Looking for an engineering partner, not a code supplier?

Explore our electronic product development, PCB design and firmware services, or tell us what you are building.

Meet the engineering team