Senior Python Developer

HelloAre you a Senior Python Developer based in Lisbon or Europe looking to work on a technically challenging R&D project with real-world scientific impact? At , we're looking for someone who enjoys working close to the problem space — from hardware to real-time data processing and user-facing applications.This role is centered around a long-term R&D project for a marine biology research client, combining real-time signal processing, hardware integration, and full-stack development. You'll work closely with researchers and our internal product team to tackle problems without predefined solutions.About the ProjectWe're working on an R&D platform for a marine biology research client. The system captures underwater acoustic signals via a multi-sensor array, processes them in real-time, and generates interactive feedback for research experiments.This is a unique R&D project combining hardware integration, real-time signal processing, and web application development. You'll work directly with researchers and our internal product team to solve genuinely novel technical challenges.The ChallengeWe need someone who can:Own the Python processing pipeline — Real-time data acquisition, signal processing, detection algorithmsIntegrate hardware and software — Sensor arrays, data acquisition hardware, real-time data streamsMaintain and extend the full stack — API, NextJS frontend, MQTT messagingCollaborate with domain experts — Work with our product team and external consultants on algorithmrefinementContribute to other projects — As this project stabilizes, help with other Python/backend/AI initiativesTechnical StackCorePython — Data acquisition, signal processing, algorithm implementation / TypeScript — Express API, Socket.IO, real-time systemsNextJS — User-facing applicationMQTT — Real-time messaging between hardware and cloudDocker — Containerized deploymentNice to HaveSignal Processing / DSP — Frequency analysis, real-time audio, sensor dataTensorFlow / ML — Model training, inference pipelinesHardware integration — Experience with DAQ systems, sensor arraysAngular — Legacy tool maintenanceWhat We're Looking ForMust Have5+ years of software development experienceStrong Python skills — Production-quality code, comfortable with data/signal processingBackend web development — , APIs, real-time systems (WebSockets, MQTT)Problem-solving in ambiguous contexts — This is R&D; you'll need to figure things outSelf-directed — Can work independently with periodic check-insStrong PreferenceSignal processing / DSP exposure — Frequency analysis, sensor data, real-time streamsFull-stack capability — Can work across Python, , and frontend when neededScientific or research background — Comfortable with experimentation and iterationNice to HaveML/AI experience — Model training, TensorFlow, data pipelinesHardware integration — Sensors, data acquisition, embedded systemsWhy This RoleUnique R&D project — Not another CRUD app; real signal processing, hardware integration, research impactTechnical variety — Python, , real-time systems, ML — not siloed into one stackGrowth opportunity — Lead role with ownership of technical directionVersatility — Contribute to this project and help with other Python/backend/AI initiatives as they ariseStrategic position at Altar — Help rebuild our Python/AI capabilities as we growAbout is a Lisbon-based product and software development studio. We partner with entrepreneurs and business leaders to design, build, and launch innovative digital products — from MVPs to full-scale platforms. We work across web, mobile, and emerging technology projects. This role starts with a long-term R&D engagement but includes opportunities to contribute to other projects as capacity allows.What to Include in Your Application:Your experience with Python in production — Data processing, APIs, real-time systemsExamples of R&D or ambiguous problem-solving — How do you approach problems without clear specs?Any signal processing or hardware integration experience — Even if limitedIf you got increasingly excited about Altar while reading this, then we're just as excited about you Apply now and let's see if we can make you the next Altarion.#LI-Remote