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64 fastapi developer jobs at 29 companies in San Marcos, TX

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Software Engineer
Austin, Texas, United States
HybridFull Time
Realtor.com
Realtor.comNasdaq: NWSA: Online marketplace for buying, selling, and renting homes.
2+ YOEBachelor's in CS or equivalent,2+ years software development,experience with Python (FastAPI,Pydantic,NumPy,Pandas),React,Node.js,GraphQL,databases;AI/ML and AWS preferred;testing and code review experience.
Python, FastAPI, Pydantic, NumPy, Pandas, React, Node.js, GraphQL, AWS
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1mo
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Software Engineer
Austin, Texas, United States
OnsiteFull Time
Closinglock
Closinglock: Software platform preventing fraud in real estate transactions.
Strong Python experience, familiarity with Flask/FastAPI/Django, RESTful API development, relational databases and ORMs, CI/CD, Docker, AWS, testing/TDD, collaborative problem solving; must be located in Austin, TX.
Python, Flask, FastAPI, Django, Docker, AWS, CI/CD
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3w
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Full Stack Developer
San Antonio or United States
$61k-$101k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
2+ YOEBachelor's degree or 4 additional years of experience, ~2 years full-stack development experience, hands-on Python and JavaScript, backend framework (Django/Flask/FastAPI), frontend framework (Vue.js/React/Angular/Svelte), ability to obtain Public Trust, U.S. work authorization required.
Python, JavaScript, Django, Vue.js, Flask, FastAPI, React, Angular, Svelte, AWS, PostgreSQL, MongoDB, Redis, Jira, Git, CI/CD
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2w
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AI Developer
San Antonio, Texas, United States
$78k-$176k/yr RemoteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
2+ YOE2+ years building production-grade software in Python/TypeScript/Java; experience with LLMs, RAG, agentic workflows, cloud (AWS), FastAPI/Flask, REST/GraphQL/SQL; CI/CD, containerization, MLOps/DevSecOps practices; Secret clearance; Bachelor’s in CS/Software Engineering/Data Science.
Python, TypeScript, Java, FastAPI, Flask, REST, GraphQL, SQL, AWS, Kafka, NATS, RabbitMQ, CI/CD, LLMs, RAG, RMF, STIG
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
10+ YOE10+ years professional software engineering experience; expert Python/FastAPI; semantic, graph, and RAG/Vector retrieval experience; cloud (GCP/AWS/Azure); leadership, TDD, and AI/LLM/SLM familiarity.
Git, Unix, Python, FastAPI, FastMCP, ADK, LLM, SLM, GraphRAG, Vector Databases, RAGAS, DeepEval, GCP, AWS, Azure
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Principal Software Engineer (Python)
Irvine or Oklahoma City or Sunrise or Oxford or Dallas or Austin
$155k-$180k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
10+ YOEMaster's or Bachelor's in CS/AI (required), 10+ years software engineering, expert Python/FastAPI, semantic/graph and RAG experience, cloud (GCP/AWS/Azure), Git/Unix, ADK, vector DBs, strong communication and leadership.
Git, Unix, Python, FastAPI, FastMCP, ADK, Vector Databases, GraphRAG, RAGAS, DeepEval, HyDE, GCP, AWS, Azure
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Software engineer, generative AI
San Francisco or New York City or Seattle or Austin or Chicago or London
$112k-$304k/yr HybridFull Time
Writer
Writer: Platform for building and deploying enterprise generative AI agents.
3+ YOEMinimum 3 years software engineering experience with strong Python production experience; experience building generative AI/LLM applications, vector DBs (Pinecone, Weaviate, pgvector), microservices, cloud (AWS/GCP/Azure), Docker/Kubernetes, FastAPI/Asyncio, and PostgreSQL.
Python, Pinecone, Weaviate, pgvector, Docker, Kubernetes, FastAPI, Asyncio, PostgreSQL, Claude, Cursor, GitHub Copilot, React, TypeScript, AWS, GCP, Azure, LLMs, RESTful APIs, IAM, SSO, SAML, OAuth, OIDC, RBAC
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Full Stack Engineer (Delivery Toolkit)
Atlanta or Austin or Chicago or Dallas or Houston
$93k-$112k/yr HybridFull Time
Bain & Company
Bain & Company: Provides global management consulting and strategy advisory services.
2+ YOEBachelor's degree or equivalent; 2+ years building web or backend services; strong TypeScript, Node.js, FastAPI/Python, SQL/Postgres, testing, and practical AWS experience; familiarity with CI/CD, Docker, and IaC.
Svelte, SvelteKit, React, TypeScript, Node.js, Python, FastAPI, Zod, Pydantic v2, PostgreSQL, SQL, SQLAlchemy, Docker, Vitest, RTL, Jest, pytest, Playwright, OpenAPI, GitHub Actions, Cursor, GitHub Copilot, S3, RDS, Lambda, ECS, CloudWatch, IAM, API Gateway, SQS, SNS, EventBridge, ECR, Terraform, CloudFormation, CDK
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Applied AI Engineer
Austin or United States
$160k/yr RemoteFull Time
Homeward
Homeward: Offers financial products for buying and selling residential homes.
4+ YOE4+ years backend development experience; production AI/ML and LLM API experience; strong Python and framework skills (Django/Flask/FastAPI); experience with prompt design, reliability, CI/CD, and strong communication.
Python, Django, Flask, FastAPI, LLM APIs, Retrieval-Augmented Generation (RAG), Claude, Copilot, REST APIs, CI/CD
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AI Engineer
Austin, Texas, United States
$92k-$155k/yr HybridFull Time
Capitol Services
Capitol Services: Provides outsourced corporate document filing and compliance services.
5+ YOE5+ years software engineering experience with 2+ years building end-to-end AI products, proficiency in Python, LLMs, RAG, prompt engineering, API development, and strong communication and organizational skills.
Python, Claude, GPT, Retrieval-Augmented Generation (RAG), MCP, Agentic AI, Generative AI, FastAPI, C#, .NET, SQL Server
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AI Engineer
San Francisco or Seattle or Dallas or Austin or Chicago or Atlanta or New York or San Diego
$100k-$120k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
1+ YOE1-3 years software development experience, bachelor's in CS/AI/data science, proficiency with AI/LLM APIs and frameworks, Python and JavaScript/TypeScript skills, Git and CI/CD experience, Docker/Podman familiarity.
Python, TypeScript, JavaScript, LangChain, LangGraph, CrewAI, PydanticAI, Model Context Protocol (MCP), Anthropic Claude API, OpenAI API, OpenAI Codex, Claude, Cursor, GitHub, GitHub Copilot, SQL, Docker, Podman, React, HTML, CSS, FastAPI, Flask, Express, Pinecone, Weaviate, pgvector, Microsoft Azure, Microsoft Fabric, Google Cloud, Amazon Web Services, Power BI
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Software Engineer III
Austin, Texas, United States
$135k-$198k/yr RemoteFull Time
6sense
6sense: AI platform for B2B buyer intent and revenue prediction.
4+ YOEBachelor's degree in CS or related, 4+ years professional software engineering experience, strong Java/Spring Boot and React/TypeScript skills, experience with databases, cloud, Kubernetes, CI/CD, testing, and AI-assisted development tools.
Java, Spring Boot, React, TypeScript, HTML, CSS, Python, MySQL, PostgreSQL, MongoDB, AWS, Azure, GCP, Kubernetes, Git, Kafka, Redis, Docker, Django, FastAPI, CI/CD, AI-assisted development tools, autonomous coding agents
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Python AI Engineer
San Antonio, Texas, United States
$80k-$100k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
8+ YOE8+ years Python development experience, PostgreSQL and PyTest expertise, strong SQL and data processing skills, CI/CD and containerization experience, and collaborative Agile experience.
PostgreSQL, PyTest, Python, Java, API, Cloud, Microservice, Spring Boot, Vertex, Kafka, RDBMS, No SQL, Maven, GIT, Jenkins, CI/CD, TensorFlow, LLM, GenAI, Pandas, REST, gRPC, RBAC, SQLAlchemy, Alembic, Airflow, Prefect, RabbitMQ, FastAPI, Flask, Linux, Docker
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2w
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AI Developer
San Antonio, Texas, United States
$78k-$176k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years building production-grade software (Python, TypeScript, or Java), experience deploying AI-enabled applications (LLMs, RAG, agentic workflows), AWS cloud experience, CI/CD and containerization practices, Secret clearance required, Bachelor’s in CS/Software Engineering/Data Science.
Python, TypeScript, Java, FastAPI, Flask, REST, GraphQL, SQL, LLMs, RAG, AWS, Kafka, NATS, RabbitMQ
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Senior Software Engineer
Austin, Texas, United States
$140k-$220k/yr HybridFull Time
ZoomInfo
ZoomInfoNASDAQ: GTM: Provides B2B contact data and sales intelligence software.
4+ YOE4+ years backend engineering experience; generalist application engineer comfortable with backend/frontend; proficiency with Python/FastAPI/Node and AI coding tools; strong ownership and product sense.
Python, FastAPI, React, Claude Code, Codex, Cursor, Node
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Senior AI Engineer
Austin, Texas, United States
RemoteFull Time
Osano
Osano: Software platform for automated data privacy and compliance.
5+ YOE5+ years experience; expertise in deploying AI workloads in AWS/Azure; advanced LLM orchestration; strong Python AI tools (FastAPI, LangGraph); experience building complex RAG and autonomous agents; evaluation frameworks.
FastAPI, LangGraph, Python, LLM, AWS, Azure
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Cybersecurity Engineer
Austin, Texas, United States
$124k-$191k/yr HybridFull Time
Visa
VisaNYSE: V: Global payment technology facilitating electronic funds transfers.
2+ YOE2+ years with a Bachelor's (or 5+ years experience), proficiency in Python/Go/TypeScript, experience with web frameworks, GenAI/LLM tooling, security/GRC knowledge (PCI DSS, NIST, ISO), and prior mentoring or team lead experience preferred.
Python, Go, TypeScript, JavaScript, Next.js, React, FastAPI, Node.js, LLMs, RAG, LangChain, CrewAI, Redis, Celery, PostgreSQL, Docker, Docker Compose, JIRA, ServiceNow
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Software Engineer II
Austin, Texas, United States
$140k-$170k/yr OnsiteFull Time
Vectra AI
Vectra AI: AI-powered cybersecurity platform for hybrid cloud threat detection.
2+ YOE2+ years professional software engineering experience, 1+ year Python, REST API and relational DB experience, cloud familiarity (AWS/Azure/GCP), CI/CD, testing, Unix/Linux, strong communication and collaboration.
Python, REST APIs, PostgreSQL, MySQL, MariaDB, AWS, Azure, GCP, Unix/Linux, CI/CD, Django, Flask, FastAPI, Celery, OpenAPI, Swagger, Kubernetes, OAuth, OIDC, IAM, SAML, SQL, Terraform, CloudFormation, Codex, Claude, OpenCode, Cursor, Snowflake, Delta Lake, Iceberg, BigLake
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Sr Software Engineer
Austin, Texas, United States
$139k-$222k/yr HybridFull Time
PayPal
PayPalNASDAQ: PYPL: Global digital payments platform for consumers and merchants.
3+ YOEMaster's in CS/Engineering plus 3+ years experience; strong Java, Python, JavaScript/TypeScript, distributed systems, databases, cloud, CI/CD, monitoring, and AI/ML tool experience.
Java, Python, JavaScript, TypeScript, Oracle Database, PostgreSQL, MongoDB, Cassandra, Redis, Elasticsearch, Neo4j, Spring Boot, Hibernate, Node.js, Express.js, FastAPI, React, D3.js, Redux, React Hooks, React Router, Webpack, Vite, Tailwind CSS, HTML5, CSS3, RESTful APIs, GraphQL, gRPC, OpenAPI/Swagger, WebSocket, Server-Sent Events (SSE), Protocol Buffers, JSON Web Tokens (JWT), OAuth 2.0, SAML 2.0, Apache Kafka, RabbitMQ, Google Cloud Pub/Sub, Docker, Google Cloud Platform (GCP), Kubernetes (GKE), Cloud Run, Jest, Mocha, Supertest, Cypress, Playwright, Istanbul/NYC, Jenkins, GitHub Actions, Harness, SonarQube, Datadog, Prometheus, Grafana, Kibana, LangChain, LangGraph, LangSmith, Milvus, Pinecone, Model Context Protocol (MCP), RAG, n8n, numpy, pandas
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GenAI Python Systems Engineer –Senior Manager
Chicago or Raleigh or Charlotte or Cincinnati or Cleveland or Columbia or Columbus or Dallas or Baltimore or Richmond or Rosemont or Sacramento or Boston or St. Louis or Salt Lake City or San Antonio or San Diego or San Francisco or Silicon Valley or Seattle or Spartanburg or Albany or Stamford or Tampa or Atlanta or Toledo or Austin or Tulsa or Washington or Denver or Des Moines or Detroit or Buffalo or Florham Park or Kansas City or Las Vegas or Little Rock or Los Angeles or Louisville or Birmingham or Fayetteville or Miami or Milwaukee or Minneapolis or Nashville or New Orleans or New York or Oklahoma City or Philadelphia or Phoenix or Pittsburgh or Portland
$124k-$280k/yr HybridFull Time
PwC
PwC: Providing audit, tax, and management consulting services to businesses.
8+ YOESenior Manager level with 8+ years of experience; proficient in Python, SQL, FastAPI; cloud certifications a plus; willing to travel up to 80%; Bachelor's degree required.
Python, SQL, FastAPI, Cloud Platforms, LLM techniques, Data Warehousing, Data Lakes, IAM
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