Senior AI Engineer
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Senior AI Engineer architecting, building, and scaling AI-powered systems at a fintech startup. Focus on redefining operations and creating new AI products for global payments.
Responsibilities:
- Architect, build, and deploy LLM-powered applications that augment and automate key workflows — from customer service and new product development to internal agentic workflows that optimize critical company processes.
- Design autonomous AI systems that can execute technical analysis, testing, troubleshooting, and decision-making at scale.
- Develop AI-driven tools that create measurable business impact — improving efficiency, accelerating innovation, and driving revenue growth.
- Identify areas where AI can generate efficiency gains — reducing manual work, optimizing processes, and enabling smarter operations.
- Build AI systems that enable scaling without exponential growth in headcount, thereby creating sustainable productivity and organizational intelligence.
- Lead fine-tuning and contextual optimization of AI models using proprietary data.
- Continuously refine performance through structured feedback loops, observability metrics, and user interaction data.
- Ensure adherence to privacy, compliance, and ethical AI principles in all model development.
- Work closely with data, product, and infrastructure teams to define the long-term AI roadmap.
- Experiment with emerging AI technologies to identify new capabilities that can drive differentiation and strategic advantage.
- Contribute to a culture of experimentation, rapid iteration, and continuous learning across the AI function.
Requirements:
- 5+ years of professional experience in AI/ML development, with at least 2 years focused on LLMs, RAG, or agentic systems.
- Strong engineering and product mindset — capable of balancing technical depth with strategic impact.
- Exceptional communication and collaboration skills to work across product, engineering, and data functions.
- Passion for pushing the boundaries of applied AI and creating systems that drive real business transformation.
- LLMs & RAG: Proven experience designing and deploying systems using models like GPT, Claude, Gemini, or similar — including Retrieval-Augmented Generation (RAG) pipelines and contextual retrieval systems.
- AI Agents & Multi-Agent Systems: Hands-on experience with Crew.ai, LangChain, LangGraph, or similar frameworks to build orchestrated agentic workflows.
- Fine-Tuning & Context Engineering: Expertise in supervised fine-tuning (SFT), LoRA, or custom dataset adaptation for domain-specific tasks.
- Programming & Frameworks: Proficiency in Python, GO and AI/ML libraries such as PyTorch, TensorFlow, or JAX.
- AI Infrastructure: Experience designing scalable, production-ready AI systems in AWS, GCP, or Azure, with a deep understanding of vector databases, model serving, and inference optimization.
- Observability & Monitoring: Familiarity with LangSmith, LangFuse, or equivalent tools for tracking, debugging, and evaluating LLM performance.
- API Integration: Expertise in integrating AI systems with RESTful APIs and internal platforms to create seamless, usable products.
- Proficiency with ML flow and LangChain.
- Good understanding of traceability tools.
- Extended backend experience is required.
- Minimum 2 years tenure in current company.
- Very good English communication skills (non-negotiable).
- Preferred Qualifications: Experience using LlamaIndex, Hugging Face, or similar open-source frameworks. Strong understanding of context optimization, embedding strategies, and knowledge retrieval. Familiarity with MLOps, CI/CD pipelines, and production deployment best practices. Prior experience in fintech, payments, or other data-intensive and regulated industries. Analytical rigor and ability to translate business objectives into measurable AI outcomes. Portuguese language skills.
Benefits:
- Remote work - You can work from everywhere!
- Home Office Bonus - One time allowance to help you create your ideal home office.
- Work equipment
- Stock options
- Health Plan - Private medical insurance for you, your spouse, and your kids
- Flexible Days off
- Language, Professional and Personal growth courses
- For Brazil CLT hires: Additional benefits including groceries and other items
Similar Jobs
Senior AI Engineer – AI Solutions
Senior AI Engineer at Sicredi focusing on AI-driven solutions that enhance business and member experience. Collaborating across teams while leading innovative projects in artificial intelligence.
GTM AI Engineer
GTM AI Engineer at Tiger Data enhancing go-to-market processes through AI-powered workflows and solutions. Building efficiencies and automations within Sales, Marketing, and RevOps teams.
Manager – ML & AI, AI Platform
Manager, Machine Learning & AI leading AI Platform team at Zapier. Focused on enabling AI features and infrastructure while partnering with multiple teams.
Staff AI Engineer, GenAI
AI Engineer architecting and operationalizing AI/ML solutions at Teladoc Health. Collaborating with teams to ensure production-grade reliability for AI-driven products.
Senior Staff Technical Program Manager – AI Platform/OS
Senior Staff Technical Program Manager driving execution of internal platform initiatives at Trase Systems. Supporting AI platform development to ensure reliability and measurable outcomes.
AI Engineer
AI Engineer at Gainwell Technologies designing and developing innovative AI solutions for healthcare applications. Focused on building and deploying advanced AI technologies to improve healthcare outcomes.
Senior AI Engineer
AI Engineer at Gainwell Technologies focusing on AI and Generative AI development for healthcare solutions. Engage in end-to-end solution deployment and integration while leading innovation in the field.
AI Engineer Training Program, No Tech Background Needed
Flatiron School offers a paid apprenticeship program for career switchers into software engineering. Engage in hands-on learning and mentorship while building a portfolio through real projects.
AI Engineer Work-Study Program – Bletchley Fellowship
Apprenticeship role for earning while learning at Flatiron School specializing in AI and data science development. Contributing to software projects with mentorship from experienced developers and leaders.
Machine Learning Engineer, AI
Machine Learning / AI Engineer collaborating with clients and optimizing AI solutions. Role involves deployment and continuous improvement of data pipelines in a fully remote setting.
Applied AI Engineer
Applied AI Engineer responsible for identifying and delivering AI capabilities in a fintech and proptech context at Splitero. Collaborating across teams to automate workflows and enhance product efficiency.
Senior AI Engineer
AI Engineer collaborating with teams to enhance predictive models in healthcare payments. Requires deep learning experience and understanding of healthcare data, preferably based in Wisconsin.
AI Engineer – KI-Spezialist
AI Engineer developing intelligent systems at RLVNT, a leading communication agency. Collaborating on innovative projects in artificial intelligence and machine learning.
Senior AI Developer – Architect
Senior AI Developer leading technical direction for AI initiatives at Health Admins. Building and optimizing AI systems in a dynamic remote environment.
Senior AI Engineer
Senior AI Engineer designing and validating AI-driven solutions for a Top 5 global consulting company. Collaborating to create intelligent AI systems and workflows in a remote setting.
Senior AI Architect
Senior AI Architect responsible for defining AI-enabled solution architectures across the enterprise. Working with a Top 5 global consulting company on cutting-edge AI initiatives in a remote setup.
AI Architect
AI Architect designing and implementing end-to-end architectures for AI/ML solutions at Cambium. Collaborates with engineering and product teams to ensure scalable and compliant AI projects.
AI Engineer, Team Lead
Lead AI Engineer managing a high-output ML team at Gravyty, focusing on cutting-edge AI solutions. Responsible for coding, mentorship, and project delivery in AI initiatives.
AI Developer – AI Innovation Cell
AI Developer designing and implementing AI-powered features at Applaudo, focusing on scalable AI solutions and business impact. Collaborate across design, development, and AI to create transformative products.
GTM AI Engineer
GTM AI Engineer at AZX developing AI-powered infrastructure for strategic market engagement. Building and running systems for CRM, marketing automation, and sales enablement.