Proudly voted a Great Place to Work®, we are a dynamic startup in the SaaS space that is revolutionizing the way businesses communicate. Our team is made up of 500 energetic and passionate Unifones who are dedicated to delivering the best possible experience to 5000+ customer-centric companies.

We pride ourselves on our fun and collaborative work environment, where creativity and new ideas are constantly encouraged. As shareholders in the business, we’re so much more than a group of passionate communicators. We are Unifones. Join our team and be a part of something big!

Meet the team!

Our Engineering team is responsible for designing, developing, and maintaining the systems and technologies that drive Unifonic’s solutions. We work closely with other departments to ensure our products and services meet the needs of our customers. If you are passionate about technology and are excited about working on cutting-edge communication and engagement solutions, we want you on our team.

We seek a highly skilled and motivated Senior Machine Learning Engineer to join our dynamic team. As a Senior ML Engineer, you will be responsible for designing, developing, and deploying advanced machine learning solutions across various domains, including NLP, LLMs, Recommender engines, and Anomaly detection. This role involves end-to-end project ownership, from data preprocessing to the creation of service APIs, and offers opportunities to work on cutting-edge AI technologies.

Help us shape the future of communication by:

• Mentoring junior team members on the team, sharing the knowledge, and advising the best machine learning, and software engineering practices and approaches.

• Establishing and maintaining robust communication channels with other cross-functional teams to facilitate the integration of machine learning solutions into other Unifonic products.

• Developing and optimizing highly confident machine learning algorithms and models, and creating/exposing the service APIs using frameworks such as Flask, FastAPIs, or other relevant frameworks.

• Staying up-to-date with the latest machine learning research papers, and AI trends (i.e. Generative AI, LLMs, RAG, and similar).

• Collaborating with the data engineering team and other teams to collect and analyze extensive datasets, extracting insights and patterns, in real-time, near-real-time, or batch processing mode.

• Implementing proof of concepts and prototypes to demonstrate the potential of new AI use cases and innovations.

• Building scalable, maintainable machine learning services, which should handle thousands of requests per second, and help to perform the required load tests to meet the SLA.

• Reviewing the code of other team members and suggesting improvements to ensure the SOLID principles and clean architecture.

• Assisting in the project documentation and demos

• Developing high-level architecture and low-level design, End-to-end for a specific project.

Requirements

What you'll bring:

• Hands-on 3-5 years of relevant work experience as a Machine Learning Engineer

• Hands-on 3+ years of experience with Python

• Excellent analytical abilities, with the capacity to collect, organize, and analyze large datasets to glean valuable insights

• Experience with LLM open source and cloud models, e.g. OpenAI GPT, LLama3, …

• Experience with RAG architecture and vector DBs, e.g. qdrant, milvus and similar

• Solid experience in ML frameworks such as NumPy, Pandas, Scikit-Learn, PyTorch, Keras, BERT, Tensorflow, and similar.

• Familiarity with MLOps best practices, e.g. Model deployment and reproducible research

• Mastering data science requires skills like SQL, hypothesis testing, Data cleansing, data augmentation, data pre-processing techniques, and dimensionality reduction

• Excellent understanding of Machine learning techniques like Naive Bayes classifiers, SVM, Decision Tree, KNN, K-means, Random Forest, modeling and optimization, evaluation metrics, classification, and clustering

• Experience with the Hugging Face libraries (i.e. transformers)

• Experience fine-tuning pre-trained models and using vector search to enhance LLMs results

• Familiar with code versioning tools like GIT, CI/CD concepts, and toolchains

• Familiar with Agile methodologies i.e. scrum and kanban

• Basic knowledge of Docker and Kubernetes

• Experience with LLM frameworks (i.e. LangChain) and prompt engineering techniques

• Experience in event sourcing patterns and tools i.e. Kafka, RabbitMQ, or similar

• General knowledge of Data warehouse tools e.g. Vertica

As a Unifone you will receive a range of benefits:

• Competitive salary and bonus.

• Unifonic share scheme (we are all owners!).

• 30 holiday days after the first anniversary.

• Your Birthday off!

• Spend up to 10 weeks per year working from anywhere in the world!

• Paid leave for new parents.

• LinkedIn learning license.