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Fixity Technologies Linkedin · Posted yesterday

AI Engineer

Dallas, Texas, United States

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Indexed description

Key Technical Skills & Usage Examples

· Programming (Python): Essential for writing logic, connecting APIs, and building end-to-end workflows.

· Frameworks (LangChain, AutoGen, CrewAI): Used for developing autonomous agent teams and multi-agent orchestration.

· Prompt Engineering & Instruction Design: Creating structured prompts to improve task success rates by up to 35%.

· Planning & Reasoning: Designing agents that break down complex goals into actionable sub-tasks.

· Tool Use & API Orchestration: Connecting AI models to external tools (databases, browsers, calculators) to act upon data, increasing success by 46%.

· Vector Databases & RAG: Implementing retrieval-augmented generation for memory and knowledge management.

· Evaluation & Testing: Testing agent reliability, accuracy, and monitoring for hallucination


Key Responsibilities

· Design, develop, and maintain scalable AI/ML applications, with a strong focus on Python-based systems

· Architect, build, and deploy production ML systems including model serving, evaluation, monitoring, and data pipelines

· Develop and implement solutions using Large Language Models (LLMs), including prompt engineering, fine-tuning, and RAG-based applications

· Integrate LLM APIs and build intelligent applications using vector databases, tool-based agents, and function calling

· Collaborate with cross-functional teams to translate business requirements into scalable AI solutions

· Ensure performance, scalability, and reliability of deployed AI systems

· Continuously evaluate and adopt emerging AI/ML technologies and best practices


Required Skills & Qualifications:

· 5+ years of software development experience in one or more languages: Python (preferred), C/C++, Go, or Java

· 3+ years of experience designing, building, and deploying production ML systems

· Hands-on experience with LLMs including API integration, prompt engineering, fine-tuning, and RAG architectures

· Familiarity with leading LLMs such as OpenAI, Gemini, Llama, Qwen, and Claude

· Strong understanding of machine learning concepts, applied statistics, algorithms, and data structures

· Experience building data pipelines and handling large-scale datasets

· Strong problem-solving skills, ownership mindset, and ability to work in a fast-paced environment

· Excellent communication skills with the ability to explain complex concepts clearly


Preferred Qualifications:

· Experience working with AWS cloud services (ECS/EKS, Lambda, S3, DynamoDB, Redshift, SageMaker)

· Knowledge of containerization and orchestration (Docker, Kubernetes)

· Experience with workflow orchestration (Step Functions)

· Familiarity with Infrastructure as Code tools such as Terraform or CloudFormation

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