Generative AI Engineer

WIT; Coimbra; Presencial; EUR 55 000 - 75 000; Tempo integral

Resumo da oferta

WIT Software seeks experienced Backend Software Engineers to join our Product Team and work on Generative AI-driven telecom backends. You will design RESTful APIs, build high-performance servers with Go/Java/Node.js, and contribute to AI pipelines and RAG workflows.

Fluent English, strong CS fundamentals, and the ability to work independently are essential. Coimbra, Portugal-based opportunity with growth and global impact.

Qualificações

• Degree in Computer Science, Engineering, or related field.
• Strong knowledge of design patterns, testing, and code reviews.
• Solid understanding of Internet protocols and networking basics.
• Ability to work independently and prioritize tasks.

Responsabilidades

• Write clean, scalable backend code.
• Develop high-performance servers with Go/Java/Node.js.
• Design and implement RESTful APIs and gRPC.
• Integrate AI models and RAG workflows.
• Fine-tune models and manage vector databases (Pinecone, Milvus).
• Document code and technical decisions.
• Support production deployments with speed tuning.

Conhecimentos

Backend development

REST APIs

Go

Java

Node.js

gRPC

Code reviews

Unit testing

English fluency

Cloud experience

Formação académica

Bachelor's degree in Computer Science

Ferramentas

Pinecone

Milvus

LangChain

Haystack

TensorFlow

PyTorch

OpenAI GPT

Descrição da oferta de emprego

WIT Software creates products and solutions for the Telecom industry and has a very strong background on Messaging, IP Voice and Video, Unified Communications, Telecom services, TV middleware and Mobile Money. The company has 25 years of existence and works with some of the most relevant Telecom companies from Europe, Japan, United States and Africa.

WIT is developing an innovative software product that leverages emerging concepts from Generative-AI and promotes the creation of innovative digital services for the Telecom industry. This product has the potential for commercial distribution to hundreds of mobile operators and service providers, reaching millions of users across various geographies worldwide.

We are seeking experienced and talented Backend Software Engineers to join our Product Team and work with Generative AI. This is an excellent opportunity for those who are passionate about developing successful software for the global market.

Key Responsibilities

• Writing clean, scalable and efficient code.
• Creating high-performance and scalable servers either using Go, Java, Node.js, Kotlin, others.
• Designing and implementing RESTful APIs.
• Ability to develop scalable server code using gRPC, and similar technologies.
• Optimizing the performance of applications for full-scale production deployments.
• Researching and developing involving Generative AI models and techniques.
• Designing scalable pipelines to integrate AI models, including RAG architectures, into backend services.
• Fine-tuning and adapting models for specific use cases with domain-specific data.
• Implementing and integrating vector databases (e.g., Pinecone, Milvus) for RAG workflows.
• Providing code documentation and contributing to technical documents.
• Routinely inspecting server code for speed optimization.
• Participating in code reviews.
• Conceptualizing and implementing solutions for data storage.
• Configure usability of all front-end applications.
• Maintaining a stable server with zero downtime.
• Troubleshooting and debugging to optimize performance

Requirements

• Degree in Computer Science, Engineering or related field.
• Experienced with software engineering best practices such as design patterns, code reviews, unit and integration testing, etc.
• In-depth understanding of computer science fundamentals, Internet technologies and protocols.
• Capable of prioritizing multiple tasks to meet goals without management oversight.
• Fluent in English with strong communication skills.
• Ability to communicate complex topics in a clear and structured way.
• Capable of exploring and quickly use new frameworks and tools.
• Proactive, able to take initiative and operate independently.
• Strong problem-solving skills and attention to detail.

Preferred Skills

• Experience on integrating foundational models such as OpenAI GPT, BERT or LLaMA.
• Proficiency in implementing RAG architectures using tools like LangChain or Haystack.
• Ability to fine-tune pre-trained models using libraries like Hugging Face Transformers or TensorFlow Hub.
• Hands-on experience with vector databases like Pinecone or Milvus.
• Proficiency in working with ML/AI libraries and frameworks like TensorFlow, PyTorch, or similar.
• Knowledge of video generation systems using deep learning techniques, such as GANs (Generative Adversarial Networks), VAEs (Variational Autoencoders) and transformers.

We offer a competitive compensation package as well as an environment conducive to personal and professional growth.