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Senior Python Developer Jobs in Delaware (NOW HIRING)

Cognizant

Snowflake Developer (Onsite)

Wilmington, DE · On-site

$80 - $145/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Sr. Snowflake Developer Role involves designing, developing, and optimizing data solutions using Snowflake and Python technologies. The candidate will work in a hybrid model collaborating with teams ...

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Ampcus Inc

Sr. Software Engineer

Wilmington, DE · On-site

$118K - $156K/yr

... DevOps teams to automate CI/CD pipelines on AWS. Qualifications : Required : • Strong proficiency in Java and Python programming languages. • Hands-on experience with AWS services (EC2, S3 ...

360 IT Professionals

Sr Java Developer

Wilmington, DE

$55.50 - $70.75/hr

Role:- Sr Java Developer Location:- Wilmington, DE. Duration:- 1 Year (Possible Extension) Sr Java ... C/C++, C#, Python, PHP, Ruby, Perl, etc. Experience working with Databases, SQL and Stored ...

City National Bank

Data Analyst Senior- VP Python

Newark, DE · On-site

$101K - $172K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Engineer data pipelines and ETL processes that improve reporting timeliness and accuracy * Lead ... Advanced Python proficiency (pandas, NumPy, data processing libraries) * Advanced Tableau skills ...

City National Bank

Data Analyst Senior- VP Python

Newark, DE · On-site

$101K - $172K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Engineer data pipelines and ETL processes that improve reporting timeliness and accuracy * Lead ... Advanced Python proficiency (pandas, NumPy, data processing libraries) * Advanced Tableau skills ...

Fairygodboss

Sr Lead Software Engineer Python

Wilmington, DE · On-site

$180 - $230/hr

  • Medical

  • Retirement

... * DevOps: CI/CD pipelines, infrastructure as code, containerization/orchestration, observability, and cloud platforms AWS, GCP, Azure * Hands‑on experience delivering system design, application ...

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All JobsPython Developer JobsSenior Python Developer JobsSenior Python Developer Jobs in Delaware

Senior Python Developer information

See Delaware salary details

$55K

$142.1K

$195.2K

How much do senior python developer jobs pay per year?

As of Aug 19, 2026, the average yearly pay for senior python developer in Delaware is $142,098.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,600.00 and $163,600.00 per year, depending on experience, location, and employer.

What are the main responsibilities of a senior Python developer?

A Senior Python Developer is responsible for designing, developing, and maintaining complex software applications using the Python programming language. They lead the technical aspects of projects, mentor junior developers, and ensure code quality through code reviews and best practices. Additionally, they collaborate with cross-functional teams to gather requirements, solve technical challenges, and deploy scalable and efficient solutions. Senior Python Developers are also expected to stay updated with the latest trends and advancements in Python and related technologies.

What are the key skills and qualifications needed to thrive as a senior Python developer?

To thrive as a Senior Python Developer, you need advanced proficiency in Python programming, experience with software architecture, and a solid understanding of algorithms and data structures, usually backed by a degree in computer science or related fields. Familiarity with frameworks like Django or Flask, version control systems such as Git, and containerization tools like Docker are typically required, alongside knowledge of modern CI/CD pipelines. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with teams and mentor junior developers. Mastery of these skills ensures the delivery of scalable, maintainable software solutions and the ability to drive technical excellence within development teams.

What are some common challenges faced by senior Python developers when leading a development team?

Senior Python Developers often encounter challenges such as balancing hands-on coding with mentoring junior team members and ensuring code quality across the team. They are also responsible for making architectural decisions, which requires staying updated on best practices and emerging Python frameworks. Additionally, coordinating collaboration between cross-functional teams (like DevOps, QA, and front-end developers) can be complex, especially in agile environments where requirements may shift rapidly. Overcoming these challenges helps foster a productive and innovative team culture.

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

AspectSenior Python DeveloperPython Developer
Required ExperienceTypically 5+ years, with leadership and complex project experienceUsually 1-3 years, focusing on core Python skills
ResponsibilitiesDesigning architecture, mentoring, handling complex systemsWriting code, debugging, implementing features
CertificationsOptional but beneficial (e.g., Python certifications, cloud certs)Often not required
Work EnvironmentCollaborative teams, project planning, code reviewsDevelopment-focused, task-oriented

The main difference between a Senior Python Developer and a Python Developer lies in experience, responsibilities, and leadership. Senior developers handle complex projects, mentor others, and often participate in architecture decisions, while Python Developers focus on coding and feature implementation. Both roles are essential in tech companies, but the senior role requires more experience and broader skills.

Are senior Python developers still in demand?

Senior Python developers remain in high demand due to the language's versatility in web development, data analysis, machine learning, and automation. Companies seek experienced developers with skills in frameworks like Django or Flask, and proficiency in cloud platforms and APIs enhances job prospects.

How much does a senior Python developer make?

A senior Python developer typically earns between $100,000 and $150,000 annually, depending on experience, location, and industry. They often possess strong skills in frameworks like Django or Flask and may hold certifications or advanced degrees that influence salary levels.

What does a senior Python developer do?

A senior Python developer designs, develops, and maintains complex software applications using Python. They often lead projects, review code, optimize performance, and collaborate with cross-functional teams, requiring strong problem-solving skills and knowledge of frameworks like Django or Flask. Additionally, they may mentor junior developers and ensure code quality through testing and best practices.

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

The most popular types of Python Developer jobs in Delaware are:

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

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

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

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

What cities in Delaware are hiring for Senior Python Developer jobs?

Cities in Delaware with the most Senior Python Developer job openings:

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

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

Senior Python Developer jobs near you
Infographic showing various Senior Python Developer job openings in Delaware as of August 2026, with employment types broken down into 1% Internship, 84% Full Time, 9% Part Time, and 6% Contract. Highlights an 79% Physical, 6% Hybrid, and 15% Remote job distribution, with an average salary of $142,098 per year, or $68.3 per hour.

Senior Python AI Developer(RAG/LLM)

Donato Technologies, Inc

Wilmington, DE • On-site

$70/hr

Contractor

Posted 12 days ago

Job description

The client is seeking a highly experienced Senior Python AI Developer with expertise in building enterprise-grade Generative AI applications. The ideal candidate will have extensive experience designing and implementing Retrieval-Augmented Generation (RAG) solutions, integrating Large Language Models (LLMs), and developing scalable AI platforms for financial services.
Required Skills
  • 10+ years of software development experience
  • Strong expertise in Python development
  • Hands-on experience building Retrieval-Augmented Generation (RAG) applications
  • Experience integrating LLMs such as GPT, Claude, Llama, Gemini, or Mistral
  • Experience with LangChain, LangGraph, LlamaIndex, or similar AI orchestration frameworks
  • Strong knowledge of vector databases including Pinecone, FAISS, Weaviate, ChromaDB, or Milvus
  • Experience with embedding models and semantic search
  • Experience developing REST APIs using FastAPI or Flask
  • Experience with prompt engineering and AI workflow optimization
  • Strong SQL and NoSQL database experience
  • Experience with Docker and Kubernetes
  • Cloud experience with AWS, Azure, or Google Cloud Platform
  • Experience with Git, CI/CD, and DevOps practices
  • Understanding of AI security, governance, and responsible AI practices
  • Experience working in Agile/Scrum environments
Preferred Skills
  • Financial or banking domain experience
  • Experience with OCR and document intelligence
  • Knowledge of AI agents and multi-agent frameworks
  • Experience deploying enterprise AI solutions
  • Experience with model evaluation and observability
Responsibilities
  • Design and build enterprise RAG solutions
  • Develop scalable AI services using Python
  • Build semantic search and document retrieval pipelines
  • Integrate vector databases and LLMs
  • Optimize prompt engineering and retrieval strategies
  • Collaborate with data scientists, architects, and business stakehold

Donato Technologies Inc. is a trusted IT staffing, consulting, and software development partner headquartered in Dallas, Texas. We support clients across industries by understanding their unique business needs and delivering tailored technology and workforce solutions. Our focus is on connecting the right talent with the right opportunity-ensuring clients receive dependable, skilled professionals and candidates receive meaningful career growth and support. We work closely with small to mid-sized organizations to provide flexible, high-quality services that drive performance, innovation, and long-term success.