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ML Engineer
- Remote
- Software Development
Job description
S-PRO, a top-tier Digital Innovation and Software Engineering company, is seeking a Senior Engineer. We specialise in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.
About project
We are developing an AI-driven sales assistant for our UK-based client, set to go live this year after successfully completing the PoC phase and initial testing. Inspired by OpenAI Operator and leveraging browser automation tools like Computer Use, this assistant navigates websites, delivers interactive product demos, and responds to user inquiries using natural voice interactions - bringing the engagement of a live salesperson at scale.
The assistant integrates advanced browser automation, speech recognition, and LLM-powered contextual understanding to provide a seamless, personalized experience. Whether guiding users through a product tour, answering technical questions, or dynamically adapting to customer needs in real time, this solution redefines digital sales interactions.
This is your opportunity to work on the forefront of AI-driven automation, tackling challenges in voice AI, LLM efficiency, real-time processing, and intelligent knowledge retrieval.
Tech Stack:
LiveKit for voice assistant
Deepgram/11Labs for STT & TTS (alternative: OpenAI real-time API)
OpenAI for LLM interactions
Qdrant for vector store (knowledge base)
FastAPI for backend
React, Next.js for frontend
BrowserUse for browser automation & demo trajectory creation
Job requirements
Responsibilities:
Implement business logic to improve user query handling.
Improve speech-to-text and text-to-speech pipelines using Deepgram/11Labs.
Work on automation of demo flow creation via browser automation via BrowserUse.
Develop personalization features for the agent
Collaborate with S-PRO team: 2 ML engineers, 1 frontend engineer, 1 solution architect, 1 PM
Communicate technical progress with the CEO (founder) and CTO of ResponseIQ.
Requirements:
3+ years of experience in Python
3+ years of experience in Machine Learning & NLP
Hands-on experience with LLM APIs (OpenAI API or equivalent models).
Experience with STT & TTS technologies (Deepgram, 11Labs, Whisper, or similar).
Python development skills with FastAPI for backend services.
Experience with vector databases like Qdrant or FAISS.
Familiarity with browser automation frameworks.
Understanding of HTML and DOM — basics of frontend is a must.
Ability to work in an agile environment and communicate effectively with stakeholders.
Upper-Intermediate English level
Nice to Have:
Experience with fine-tuning LLMs.
Knowledge of frontend technologies (React, Next.js) will be a huge plus.
Familiarity with customer engagement solutions (support systems, chatbots, etc)
What we offer:
Long team focus: we create an environment of transparent communication, and minimal bureaucracy, which leads to long-term relationships.
Development of niche expertise: we are working in several niches, such as FinTech, healthcare, and logistics. Therefore, our employees can develop their own expertise in these domains.
Continuous learning: we create employee development plans / personal roadmaps /quick promotion processes.
Internal career development: 80% of our current executives were promoted to those positions within S-PRO. We encourage initiative. If a person wants to set new challenges and grow, we will definitely support them.
Benefits and perks:
— Flexible schedule: you can start the workday at any time from 8 to 11 in the morning;
— Remote work model: decide where you want to work: from your cozy home, or anywhere else;
— Medical insurance: all our employees who have passed the probationary period are now registered in our health insurance program;
— Paid vacations: we need to ensure that our employees regularly take vacations and don’t overwork.
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How We Hire
Our hiring process is thorough to ensure that we make the right decision and to help you decide if we're the right fit for you.
Getting to know you
It is the first chat. Let your recruiter learn about you and your story to check a potential fit for S-PRO. This is also a chance for you to ask first questions about the role and company.
Manager’s interview
In this meeting, your future Lead takes a deeper dive into your experience and what you could bring to the team. You can expect questions on how knowledgeable you are in the business or technology. As well as some questions about your expertise.
Final chat and offer
You made it to the very last stage! Here we already strive to cooperate with you and believe in your growth and sky-crossing potential. We are hoping that during the previous stages you were able to know us better and willing to join the team.
