Full Stack Engineer

Position Details Location: The candidate should be located in LatAm (Brazil, Mexico, Argentina, etc) Compensation: $2000-$2500 per month Time Commitment: ~15 hours per week; reasonable availability during US Central Time zone; flexible work-hours Position Type: Independent contractor Duration: nine-month engagement, with the intention to extend based on mutual fit and company needs About Nexa Labs (part of Spade) We're building smart monitoring devices for cows - small, low-power wearable and implantable devices that monitor animal health and behavior on real farms. Our mission is to use technology to empower farmers and the food system that they drive. About the role We're hiring a Full-Stack Engineer to own the software systems connecting our devices in the field to the applications used by farmers and internal teams. This role spans backend services, data pipelines, frontend applications, edge connectivity, cloud infrastructure, and applied data science. You will work closely with an electronics/firmware lead responsible for device hardware and firmware development, in addition to diverse stakeholders spanning engineering, product, and customers. Your primary responsibility will be building and operating the software, infrastructure, and data systems surrounding the devices. We're looking for a versatile engineer who can move across the complete software stack, rapidly build and deploy systems, and take ownership wherever needed. What you'll do Own end-to-end software architecture and development across edge gateways, connectivity, cloud infrastructure, backend services, databases, frontend applications, and machine-learning pipelines Develop and maintain device-to-cloud data pipelines, backend services, APIs, and data models using Python, Django, relational databases, and related technologies Develop and maintain edge and LoRa/LoRaWAN systems, including device communications and gateway integration Develop and maintain customer-facing and internal applications u