Sr. AI/ML Engineer

Constrafor-posted 6 months ago

$175,000 - $190,000/Yr

Full-time • Senior

51-100 employees

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Constrafor is a SaaS and fintech platform purpose-built for construction. We are setting new standards of productivity and cost-efficiency for the way General Contractors and Subcontractors manage procurement & financial transactions. With over $30 million of VC financing, we are forging the path for construction innovation. Join us on our mission to advance the largest industry in the world. We’re looking for an experienced and innovative Senior AI/LLM/ML Engineer to join our team and drive the development of next-generation AI-driven solutions. Backed by top-tier investors and having grown 7x and then 3x over the past two years, Constrafor is scaling rapidly – this is your opportunity to help shape the future of a company on a rocket ship trajectory. As a senior member of our engineering organization, you’ll spearhead critical initiatives in artificial intelligence and machine learning. From building advanced data pipelines and agentic AI systems to deploying large language models in production, your work will be central to delivering smart, sustainable, and data-driven solutions for our users.

Design and implement advanced AI/LLM-driven data pipelines to power our platform’s intelligent features and services.
Build, maintain, and scale agentic retrieval-augmented generation (RAG) systems that deliver context-aware insights and automation for our users.
Integrate state-of-the-art large language models into Constrafor’s product workflows, enabling new capabilities in areas like document understanding, risk analysis, and process automation.
Collaborate closely with data engineers and backend teams to ensure robust, scalable pipelines for model training, evaluation, and real-time inference.
Optimize and tune model performance (e.g. prompt engineering, fine-tuning) to ensure high accuracy and efficient response times in production environments.
Work with cross-functional teams (Product, Engineering, Data) to identify AI opportunities and implement solutions that enhance user experience and operational efficiency.
Develop and enforce best practices for AI/ML development, including code quality, model governance, and MLOps deployment standards for reliable production systems.
Stay at the forefront of AI research and LLM advancements, prototyping innovative approaches and integrating relevant technologies into our platform.
Ensure the reliability, security, and scalability of AI solutions through rigorous testing, monitoring, and iterative improvement.
Mentor and guide junior engineers, fostering a culture of innovation, collaboration, and continuous learning in AI/ML across the team.

7+ years of professional experience in software engineering, data science, or machine learning roles.
Proven ability to design, deploy, and manage machine learning solutions in production; experience thriving in both large tech companies and fast-paced startup environments.
Extensive hands-on experience in natural language processing and large language models – you have built NLP/LLM-driven applications and integrated frameworks like LangChain with APIs from providers such as OpenAI, Anthropic, or Google Gemini.
Proficiency in Python and ML frameworks (e.g. TensorFlow or PyTorch); strong experience with cloud platforms (AWS and/or GCP) for developing and deploying AI solutions at scale.
Solid knowledge of data pipelines and retrieval-augmented generation (RAG) architectures, including working with vector databases or search technologies to augment LLM capabilities with external data.
Excellent problem-solving and communication skills, with a track record of technical leadership and mentorship in previous roles.
BS/MS in Computer Science, Engineering, or a related field (or equivalent practical experience). An advanced degree or research experience in AI/ML is a plus.

Experience with fintech, SaaS, or construction technology industries is a plus but not required.

Salary Range: $175,000-190,000 base DOE.
Significant equity ownership within Constrafor.
Medical, dental & vision insurance coverage offered for you and your dependents.
Generous PTO Plan.
A collaborative and innovative work culture that values your input.
Opportunity to make a significant impact in a growing tech company.
Hybrid schedule out of our beautiful Hudson Yards office.

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