Full-Stack Engineer // Java// Contract // Remote

Department: Engineering

Location: Spain - remote

Employment Type: Contract

About us

The Agile Monkeys is a software boutique and a startup studio. We offer AI software consulting services and we build products related to AI and search such as AIFindr.ai.

Why should you join us?

At Agile Monkeys, we’re not just building software - we’re shaping the future.

• Future-proof your career by working at the cutting edge of AI and emerging tech.

• Grow without limits in a team that thrives on curiosity, learning, and pushing boundaries.

• Thrive in a culture people stay for, we have a high retention rate because people love working here.

• Work your way: remote-friendly, flexible hours, and an outcomes-over-hours mindset.

• Own your impact, we give you real responsibility, trust, and the freedom to innovate.

• A safe place to stretch, we encourage bold thinking, learning from mistakes, and stepping outside the box.

• We are bootstrapped over 14 years out of the Canary Islands, no dependency on investors.

Join an elite, collaborative team where excellence is the standard and every contribution matters.

The Role

We’re looking for a developer who’s comfortable starting from a blank page and motivated by building practical AI systems end-to-end. You’ll work on solutions that combine real-time processing, voice technologies, and the transformation of unstructured inputs into reliable structured data.

This position requires strong system integration skills, solid data engineering foundations, and experience designing evaluation pipelines. If you enjoy tackling challenges across multi-modality (voice and text) and complex data, while creating robust, user-facing AI features, you’ll thrive in this role.

Key Responsibilities

• Proficiency in Java and Spring boot

• Background in AI-powered solutions across voice, text, or unstructured data

• Solid foundations in data engineering and data processing architectures

• Familiarity with real-time or streaming systems (e.g., audio, WebSockets, event-driven flows)

• Experience designing or maintaining evaluation pipelines for AI systems

• Comfort working from ambiguous requirements and shaping solutions from scratch

• Understanding of security, privacy, and handling sensitive data

• Ability to collaborate across product, engineering, and domain teams

• Bonus: prior experience with speech technologies (ASR, TTS, telephony)

What We Value

At The Agile Monkeys, we care as much about how we work as what we build.

We’re looking for someone who:

• 🧠 Takes ownership – you see a problem, you fix it.
  

• ⚡ Is proactive – anticipates challenges and improves processes before they break.
  

• 🌍 Adapts quickly – thrives in change and uncertainty, embraces pivoting when needed.
  

• 🚀 Aims high – expects exceptional results from yourself and others.
  

• 💡 Loves to learn – continuously explores new tools, methods, and ideas.
  

Requirements

Must-Have Skills:

• Strong knowledge of Java Spring Boot.

• Strong experience integrating distributed or complex systems

• Solid background in data engineering and processing unstructured data

• Hands-on experience building or maintaining AI-driven features

• Ability to design and operate evaluation workflows for AI models

• Comfort working with ambiguous requirements and developing solutions from scratch

• Strong understanding of security and privacy considerations when handling sensitive data

• Excellent problem-solving skills and ability to collaborate with cross-functional teams

• Excellent communication skills in English.
  

Nice-to-Have:

• Experience with OpenAI API.

• Interest in innovation and AI applicability.

• Experience with real-time or streaming architectures (e.g., WebSockets, event streams, audio pipelines)

• Practical experience with Twilio, WebRTC, or similar communication platforms

• Knowledge of observability and monitoring tools (e.g., OpenTelemetry, Datadog, Prometheus)