LI
Senior Machine Learning Engineer
Contract type
Ongoing
Work mode
Remote · Latin America, North Macedonia, Portugal, Serbia
Experience
Mid-level · 4+ years
Job description
Senior Machine Learning Engineer at Loka, a globally distributed tech consultancy, to design and implement machine learning and generative AI solutions across multiple client projects. The role serves as the primary ML specialist, leading client communications and mentoring junior engineers.
At a glance
- Work mode
- Remote · Latin America, North Macedonia, Portugal, Serbia
- Languages
- English – excellent
What you'll do
- Take full responsibility for assigned tasks and projects, ensuring accountability for outcomes and results.
- Lead client communications, gathering requirements, managing expectations and communicating deliverables effectively.
- Understand business objectives and build solutions that help achieve them, along with metrics to track progress.
- Collaborate cross functionally with other teams (Data Engineering, DevOps, Backend) to ensure seamless integration of ML solutions.
- Design, build, and maintain generative AI systems end to end, developing LLM powered applications and agentic workflows, implementing RAG pipelines (data ingestion, chunking, embeddings, vector search).
- Establish evaluation frameworks and production monitoring on GenAI solutions to continuously measure output quality, accuracy, latency, cost, and reliability while iterating on prompts, models, and architecture.
- Wrangle, explore and visualize data with a keen eye for data cleaning, as well as differences in data distribution that may affect post deployment performance.
- Deploy, maintain and upgrade ML models and pipelines.
- Analyze model errors and design strategies to overcome them.
- Write and maintain technical documentation.
- Drive architectural decisions and contribute to high level planning and strategy.
- Continuously optimize solutions for performance, scalability and cost effectiveness, especially within the AWS environment.
- Engage with clients to understand their business and technical needs, evaluate potential solutions, and define high-level implementation approaches and estimates.
- Contribute to internal engineering initiatives and projects, helping identify opportunities for improvement and drive their implementation.
- Serve as the primary ML specialist across multiple projects, elevating the team's work.
- Provide guidance and mentorship to junior ML engineers within the team.
What we're looking for
- Bachelor's degree in Computer Science or a related field.
- 4+ years of AI/ML engineering experience.
- Proven experience building GenAI solutions, prompt engineering, fine-tuning and serving LLMs, search and embeddings, and developing agents with common patterns (Agentic RAG, NLQ), using frameworks such as LangChain/LangGraph, LlamaIndex, smolagents and strands-agents.
- Understanding of statistical, ML and deep learning algorithms.
- Solid experience with cloud ML services, preferably AWS (Bedrock, AgentCore, SageMaker).
- Experience with containerization and orchestration tools.
- Client-facing experience.
- Deep proficiency in Python and core ML libraries and frameworks (scikit-learn, PyTorch, HuggingFace, TensorFlow, Transformers).
- A track record of mentoring junior engineers and elevating team output.
- Confidence leading client communications and managing expectations independently.
- Autonomy, adaptability and a consistently positive presence on the teams you work with.
- Excellent English, as a global team, we work entirely in English for meetings, customer calls and business communications.
- CV written in English.
Nice to have
- MLOps/LLMOps experience, preferably in AWS, along with standard tooling (MLFlow, LangFuse).
- Experience in consultancy environments or startups, including managing projects and adapting to different settings.
Your team
ML crew
Machine learning team doing high-stakes work across life sciences, from cutting-edge BioLM models to agentic applications for genetic research companies.
Benefits
- Every other Friday off (26 extra days off a year)
- Remote-first culture
- Explore and Relocation programs (three months work abroad or full international relo)
- Paid sick days and local holidays
- Business English classes program
- Continuous Learning Support
- Fitness and/or Mental Health Subscriptions
- Access to LokaLabs™, our internal research and development program
- Defined career path
Apply
About Loka, Inc
A globally distributed tech consultancy based in Silicon Valley
Loka is a globally distributed tech consultancy based in Silicon Valley. In 2024, we were recognized by AWS as Innovation Partner of the Year, beating out 150,000 partners for the title. We count more than 100 certified specialists, technical experts and PhDs among our teammates. We work entirely remotely, test new ideas in our in-house incubator LokaLabs™, observe local holidays and take every other Friday off.
Key facts
- more than 100 certified specialists, technical experts and PhDs
- Silicon Valley
- Tech consultancy
- Recognized by AWS as Innovation Partner of the Year in 2024, beating out 150,000 partners
- More than 100 certified specialists, technical experts and PhDs among teammates
- Works entirely remotely
- In-house incubator LokaLabs™
- Takes every other Friday off
Partners & customers
AWS
What they value
- Curious
- Autonomous and positive
- Team player
- Adaptable
- Empathetic