Junior R&D Software Developer

9 октября 2026 г.

Офис

Junior

Barcelona, Spain

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Описание

A hands-on junior R&D development role focused on turning technical ideas into working prototypes, measurable experiments and reliable integrations. The work involves AI models, voice technologies, computer vision and physical devices, exploring how software performs under real-world conditions. You will write well-structured testable code, connect services and devices, build evaluation tools and investigate technical problems alongside experienced engineers. The position is 100% on premise, fully on-site in Barcelona.

Обязанности

Turn research ideas and technical hypotheses into functional software prototypes
Integrate APIs and models for speech recognition, speech synthesis, LLMs and computer vision with current capabilities
Develop experimental features, supporting services and tools
Connect software with tablets, microphones, speakers, cameras and other peripherals or sensors
Build repeatable evaluations to compare models, providers, architectures and device configurations
Define and measure relevant metrics including quality, latency, reliability and resource consumption
Test systems under realistic conditions such as background noise, unstable connectivity and extended operation
Document the hardware, software versions and configuration needed to reproduce results
Use logs, traces, profiling tools and experimental data to investigate unexpected behaviour
Help identify whether a problem comes from application code, an AI service, connectivity, operating-system configuration or hardware
Investigate audio and video capture, permissions, device compatibility and performance bottlenecks
Implement improvements and verify their impact
Work closely with the technical lead and R&D engineers
Participate in code reviews, pair programming and technical discussions
Communicate progress, blockers and findings clearly
Turn successful experiments into reusable scripts, services and test suites

Требования

Solid programming skills in at least one relevant language such as Python, TypeScript/JavaScript or Dart
Experience building working software through academic projects, personal projects, internships or employment
Basic familiarity with APIs, Git and debugging
Strong interest in applied AI, voice technologies and computer vision
Practical experience connecting software to a physical device or peripheral such as a tablet, microphone, camera, sensor, Raspberry Pi or microcontroller
Basic understanding of how processor capabilities, RAM, connectivity and thermal limitations affect software performance
Ability to take a small, clearly scoped technical problem from idea to working prototype with guidance when needed
Ability to investigate independently, explain what you have tried and ask for help when blocked
Availability to work on-site in Barcelona throughout the working week
Hardware experience does not need to come from a professional role: a relevant university or personal project is equally welcome
Flutter/Dart, particularly native integrations, audio capture or streaming
Backend or cloud technologies such as Firebase, Firestore, Cloud Functions or Cloud Run
Integration of speech recognition, speech synthesis or LLM APIs
Function calling, structured outputs, agent workflows or automated model evaluation
Experience with Android development tools, ADB, Linux or device profiling
Familiarity with USB peripherals, Bluetooth/BLE, Wi-Fi or serial communication
Experience running AI models locally on mobile or edge devices
Exposure to audio concepts such as echo cancellation, sample rates, microphone selection or background-noise handling
Basic software testing, observability and performance measurement

Условия

Work is 100% on premise with 0% remote in Barcelona
Regular work involves physical devices and collaboration with the R&D team

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Junior R&D Software Developer

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Junior R&D Software Developer

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