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Senior Python Flask Developer Jobs in California

Senior Python Engineer - Agentic AI Location: San Francisco, California (Hybrid) Duration: 3 months ... Target Candidate Profile Strong backend Python developer with experience building and supporting ...

Python Developer

Monterey, CA · On-site

$75K - $200K/yr

... Flask or similar Python frameworksFamiliarity with front-end technologies such as JavaScript HTML5 and CSS3Knowledge of ORM (Object Relational Mapper)Familiarity with various testing tools.

Python Software Developer

San Jose, CA

$59 - $81.25/hr

... programming (Python, Java) and scripting skills(Bash) are required with demonstrated ability to ... flask/django Strong verbal and written communication skills are required due to dynamic nature of ...

Python Software Developer

San Jose, CA

$59 - $81.25/hr

... programming (Python, Java) and scripting skills(Bash) are required with demonstrated ability to ... flask/django Strong verbal and written communication skills are required due to dynamic nature of ...

Python Developer

San Francisco, CA · On-site

$59.25 - $81.50/hr

Python Developer Location San Francisco, CA Experience: 9+ year Minimum Responsibilities ... Flask, etc depending on your technology stack) - Able to integrate multiple data sources and ...

Showing results 41-60

Senior Python Flask Developer information

What is a senior Python Flask developer?

Senior Python Flask Developers are experienced software engineers who specialize in building web applications using the Python programming language and the Flask web framework. They are responsible for designing, developing, and maintaining scalable backend systems, APIs, and web services. In addition to strong coding skills, they often lead projects, mentor junior developers, and ensure best practices in code quality, security, and performance. Their expertise allows them to solve complex technical challenges and contribute to the overall architecture and success of software projects.

What are the key skills and qualifications needed to thrive as a senior Python Flask developer, and why are they important?

To thrive as a Senior Python Flask Developer, you need advanced proficiency in Python, deep understanding of the Flask framework, and experience designing scalable backend architectures, typically supported by a degree in computer science or related field. Familiarity with RESTful API development, database management systems like PostgreSQL or MySQL, and version control tools such as Git is essential, and certifications in cloud platforms or web development can be beneficial. Strong problem-solving skills, clear communication, and the ability to mentor junior developers are standout soft skills for this role. These abilities ensure efficient delivery of robust, maintainable web applications and foster productive collaboration within development teams.

What are some common challenges faced by senior Python Flask developers when working on large-scale applications?

Senior Python Flask Developers often encounter challenges such as managing complex codebases, ensuring scalability, and maintaining performance as applications grow. Integrating Flask with other technologies (like databases, caching systems, or third-party APIs) can introduce architectural complexities. Additionally, balancing rapid development with writing maintainable, well-tested code is crucial. Collaboration with frontend developers, DevOps, and QA teams is frequent, requiring strong communication and problem-solving skills.

What is the difference between Senior Python Flask Developer vs Python Developer?

AspectSenior Python Flask DeveloperPython Developer
Required CredentialsBachelor's in CS or related, experience with Flask, REST APIsBachelor's in CS or related, basic Python knowledge
Work EnvironmentWeb development teams, startups, tech companiesSoftware development teams, startups, tech companies
Employer & Industry UsageTech firms, SaaS companies, startupsVariety of industries including finance, healthcare, tech
Search & Comparison IntentAdvanced roles, leadership, project scopeEntry to mid-level development, learning

The main difference between a Senior Python Flask Developer and a Python Developer lies in experience and responsibilities. Senior developers typically have more expertise in Flask, lead projects, and mentor junior staff, whereas Python Developers may focus on coding and basic application development. Both roles are essential in web development teams, but senior roles require deeper knowledge and leadership skills.

What are the most commonly searched types of Python Flask Developer jobs in California?

The most popular types of Python Flask Developer jobs in California are:

What are popular job titles related to Senior Python Flask Developer jobs in California?

For Senior Python Flask Developer jobs in California, the most frequently searched job titles are:

What job categories do people searching Senior Python Flask Developer jobs in California look for?

The top searched job categories for Senior Python Flask Developer jobs in California are:

Infographic showing various Senior Python Flask Developer job openings in California as of September 2026, with employment types broken down into 2% Internship, 86% Full Time, 8% Part Time, and 4% Contract. Highlights an 78% Physical, 4% Hybrid, and 18% Remote job distribution.

Senior Python Engineer - Agentic AI

Concord, CA • On-site

$80 - $90/hr

Other

Medical, Dental, Vision, Retirement, PTO

Posted 4 days ago


Job description

Position: Senior Python Engineer - Agentic AI
Location: San Francisco, California (Hybrid)
Duration: 3 months Contract (with the possible extension)
Job Overview: About the Initiative
Part of the Consumer Technology Marketing Technology organization.
Focused on building and deploying greenfield Agentic AI solutions.
Team is developing AI agents that orchestrate and automate marketing campaign activities.
Since launching in March, the team has successfully built 6 AI agents and is now entering the next phase of scaling and enhancement.
The first production agents are scheduled to go live on August 24th.
Long-term roadmap is expected to expand to 20+ AI agents.
This is one of the bank's first major Agentic AI initiatives and is considered a highly visible, strategic program.
Role Overview
Hands-on development role with a strong coding focus.
Resources will primarily be building, enhancing, and supporting AI agents rather than spending significant time in meetings.
Daily collaboration occurs through team standups and close interaction with developers and architects.
Candidates should be comfortable communicating technical needs and blockers, though executive-facing responsibilities are minimal.
Target Candidate Profile
Strong backend Python developer with experience building and supporting microservices-based applications.
Experience designing and consuming APIs.
Familiarity with Large Language Models (LLMs), Agentic AI frameworks, and AI orchestration concepts.
Experience working with MongoDB and vector databases.
Financial services experience is not required.
Required Experience
Python: 5+ years
Microservices: 5+ years
API Development/Integration: 5+ years
MongoDB: 5+ years
Agentic AI: 2+ years preferred
Core Technical Skills
Python software engineering
REST API development
Microservices architecture
Distributed systems design
Backend service development
FastAPI
AsyncIO
Multiprocessing
Performance tuning and profiling
Caching strategies
Database/query optimization
Event-driven architecture
High-availability and fault-tolerant system design
Generative AI / LLM Skills
Generative AI application development
Large Language Models
Agentic AI systems
Multi-agent workflow design
Retrieval-Augmented Generation
Hybrid RAG architectures
Knowledge graph-enhanced RAG
Prompt engineering
Prompt orchestration
Tool calling
LLM routing and fallback strategies
Fine-tuning evaluation
Model evaluation frameworks
Hallucination detection
Human-in-the-loop validation
Text-to-SQL using LLMs
Schema-aware prompting
Embeddings and semantic search
AI Platform & Architecture Skills
Enterprise AI platform architecture
Scalable AI workflow design
AI governance standards
AI guardrails implementation
Responsible AI controls
PII redaction
Audit logging
Model usage monitoring
Latency, cost, and accuracy optimization
AI/ML feature engineering
Recommendation systems
Feedback loops for model improvement
Data Engineering Skills
Kafka
Streaming data pipelines
Databases & Vector Search
Vector database architecture
Semantic retrieval
Re-ranking
Embedding pipelines
About PTR Global: PTR Global is a leading provider of information technology and workforce solutions. PTR Global has become one of the largest providers in its industry, with over 5000 professionals providing services across the U.S. and Canada. For more information visit ;br>
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Pay Range: $80.00 - 90.00/hr on W2
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