Deeto is transforming how B2B companies grow by turning their customers into their most powerful growth engine. Our AI‑powered voice of customer (VoC) platform makes it effortless for companies to capture, organize, and activate authentic customer voices—delivering the right proof points at the right moment to accelerate deals and build by leading investors including Jump Capital and UpWest, we've raised $17M to date and are scaling rapidly across North America and Europe. We're building the future where customer voice is as core to go‑to‑market as your product itself.

About Role

Deeto is seeking an excellent and experienced Full Stack engineer to join the team and help build new and exciting products.

We leverage modern cloud technologies, AI, and integrations with various platforms to create a seamless and scalable application. We are looking for a highly skilled R&D; Developer to join our team and drive the development of advanced software solutions.

Responsibilities

- Architect, deploy, and manage serverless applications using AWS Serverless (Lambda, API Gateway) and Cloud Formation .
- Configure and optimize Cloud Front with for integral content delivery, including multi‑subdomain and wildcard implementations.
- Design and maintain AWS RDS (PostgreSQL) instances with multi‑schema and multi‑region setups for high availability.
- Implement security best practices using AWS Secrets Manager , Cloud Watch for monitoring, and AWS WAF/Cloudflare for threat mitigation.

Third‑Party Integrations:

- Develop and maintain integrations with Salesforce , Hub Spot , Zoom ,



Google APIs (Calendar, reCAPTCHA, Gmail) , Twilio (SMS) , and Send Grid (DKIM, email delivery) .
- Embed analytics dashboards using Quick Sight and ensure seamless data workflows.

Full‑Stack Development:

- Build responsive front‑end interfaces with React .
- Develop scalable back‑end services using Node.js .
- Manage CI/CD pipelines via Git Hub (PRs, Actions) .
- Implement OpenAI APIs and optimize LLM interactions through prompt engineering.
- Explore translation methodologies (e.g., localization frameworks or NLP‑based solutions).
- Work cross‑functionally with product, security, and Dev Ops teams to ensure code quality, scalability, and compliance.
- Document architectures, troubleshoot issues, and stay updated on emerging technologies.

Requirements

Required Qualifications:

- 3+ years of hands‑on experience with AWS (Serverless, Cloud Front, RDS, Secrets Manager, WAF).
- Proficiency in React and Node.js
- Strong background in API integrations (e.g., Salesforce, Hub Spot, Zoom, Google).
- Experience with PostgreSQL, multi‑region databases, and security protocols (DKIM, Secrets Manager).
- Familiarity with Twilio , Send Grid , and monitoring tools like Cloud Watch .

Preferred Qualifications (Huge Advantage)

- Advanced expertise in Salesforce or Hub Spot app development.
- Experience with translation/i18n frameworks or NLP.
- Knowledge of OpenAI/Large Language Models (LLMs) and prompt engineering.
- Familiarity with Quick Sight embedded analytics.
- Proficiency in Git Hub Actions .

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📌 Full Stack Engineer (Barcelona)
🏢 Deeto
📍 Barcelona