407 senior python developer jobs at 130 companies in Intercourse, PA

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Python API Developer
Malvern, Pennsylvania, United States
$110k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOEDesign and maintain REST APIs with Python and AWS Lambda; integrate with Amazon Aurora and DynamoDB; manage DB migrations with Liquibase; 10+ years experience and Bachelors in Computer Science required.
Python, Lambda, Aurora, DynamoDB, Liquidbase, CI/CD
2mo
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Senior Software Engineer - Python - 1099
Conshohocken, Pennsylvania, United States
RemoteTemporary
Syzygy Integration
Syzygy Integration: Develops situational awareness and tactical communication technology for defense.
10+ YOE10+ years full stack experience; Python; remote US-based role; must pass background check; U.S. citizen.
Python
1mo
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Python Developer- Quant Core Data | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
PhD or postdoc in a quantitative field, strong high-performance Python (Cython/pybind11/numba) and large-data analysis (polars/pandas) skills, ability to translate research into production-quality code.
Python, Cython, pybind11, numba, polars, pandas
1mo
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Python Developer- Quant Core Data | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
PhD or postdoc in a quantitative field, strong high-performance Python skills (Cython/pybind11/numba), experience with large-data analysis (polars/pandas), and ability to translate research into robust engineering solutions.
Python, Cython, pybind11, Numba, polars, pandas
2w
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Senior Lead Software Engineer - Java/AWS/Python
Plano or Wilmington
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
10+ YOEExpertise in Java, Python, AWS, Terraform and cloud-native development; experience with Kafka and automation; demonstrated software design, delivery, and team leadership with significant industry experience.
Java, Python, AWS, EKS, S3, Lambda, EMR, Terraform, Kafka, Databricks
1mo
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Power BI/Python Developer - Delivery Senior Consultant
Gilbert or Lake Mary or Mechanicsburg
HybridFull Time
Deloitte
Deloitte: Provides professional audit, consulting, advisory, and tax services.
4+ YOEBachelor's degree, active Secret clearance, 4+ years Power BI development, 2+ years SQL and Python, and 1+ year agile or Scrum experience; U.S. work authorization required.
Microsoft Power BI, SQL, Python, Agile, Scrum
1mo
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Senior AI Engineer
United States or Wilmington
$126k-$197k/yr RemoteFull Time
Chemours
ChemoursNYSE: CC: Manufactures specialty chemicals, refrigerants, and high-performance industrial fluoropolymers.
8+ YOEDegree in Computer Science/Engineering, 8+ years backend development with Python and JavaScript, 2+ years production GenAI systems experience, React/TypeScript UI skills, Pydantic proficiency, strong stakeholder communication.
Python, JavaScript, React.js, TypeScript, HTML, Pydantic, PyTorch, Azure, Azure Kubernetes, Office 365, GitHub
1mo
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SENIOR SOFTWARE DEVELOPER/ENGINEER (CLOUD/CYBER)
Huntsville or Aberdeen or Colorado Springs or Crestview or Tupelo
OnsiteFull Time
Sentry Construction
Sentry Construction: Provides general contracting and comprehensive property maintenance services.
7+ YOEBS in CS/Software Eng or equivalent, 7+ years software development experience, DoD Top Secret/SCI eligibility, experience with Python, containers, AI/LLMs, databases, Linux, AWS, and Agile/Scrum.
LLMs, Ollama, LM Studio, Python, C#, Go Lang, React, JavaScript, HTML, CSS, Git, Docker, Bash, TensorFlow, PyTorch, SQL, MongoDB, PostgreSQL, Redis, Linux, AWS, RESTful API, Agile/Scrum
3w
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Senior Software Engineer (Technical Lead) BSI - (Claude, GitHub, Python, NET/C#, Angular, AWS)
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
Travelers
TravelersNew York Stock Exchange: TRV: Provider of commercial and personal property casualty insurance.
5+ YOE5+ years software engineering experience, experience shipping LLM/AI agent production systems, proficiency with GitHub, Python, .NET/C#, Angular, AWS, databases, and strong communication and leadership skills.
GitHub, Python, NET/C#, Angular, AWS, OCF, Mongo, DocumentDB, SQL Server, Claude Agent SDK, LangGraph, AgentCore, Anthropic, OpenAI
2mo
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Senior Data Engineer
Philadelphia or Aurora or King of Prussia
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOE5+ years in data engineering/science with TS/SCI clearance; BS in data science/CS; experience building data pipelines and using Python data libraries; experience with git.
Python, NumPy, Pandas, Polars, Git, Docker, Docker Compose, AWS, Spark, PySpark, Linux, CUDA
2mo
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Senior Systems Engineer
Wilmington, Delaware, United States
RemoteFull Time
CSC
CSC: Provides global business administration and compliance solutions.
10+ YOE10+ years as a Network Engineer; expertise with Cisco, F5, Palo Alto, Infoblox, Zscaler ZPA, Azure Cloud, ISE, SD-WAN; CCNP/CCIE desirable; scripting in Ansible and Python.
Cisco routing and switching, Nexus, ACI, AWAF, Infoblox, Zscaler ZPA, Azure Cloud, ISE, SDWAN, Ansible, Python, F5, Palo Alto, VPN, TCP/IP, BGP, OSPF, EIGRP, MPLS
3mo
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Lead Software Engineer II – Java & Python
Wilmington, Delaware, United States
$100k-$135k/yr RemoteMultiple Commitments Available
Best Egg
Best Egg: Provides personal loans and credit cards for prime borrowers.
4+ YOE4-6 years professional software engineering; strong backend Java and Python; SQL/data modeling; AWS; DynamoDB, RDS, PostgreSQL; CI/CD; Docker; ECS/EKS; CloudWatch/Datadog; excellent communication and collaboration.
AWS, Docker, Kubernetes, ECS, EKS, CloudWatch, Datadog, DynamoDB, RDS, PostgreSQL, DocumentDB, CI/CD
4d
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Senior AI/ML Engineer
Malvern or Philadelphia or Charlotte
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
5+ YOEMaster’s degree in a related field, 5–8 years of AI/ML or software development experience, Python, ML frameworks, LLMs, agentic principles, vector databases, data pipelines, and retrieval systems.
Python, TensorFlow, PyTorch, scikit-learn, AWS, MLOps
1w
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Senior Machine Learning Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Vanguard
Vanguard: Global investment management and financial services provider.
8+ YOERequires 8+ years related experience, including 3+ years development experience, an undergraduate degree or equivalent, production ML experience, Python, AWS SageMaker, MLOps, pipelines, deployment, monitoring, and testing.
Python, Pandas, NumPy, Scikit-Learn, PyTorch, TensorFlow, AWS, AWS SageMaker, CI/CD
19h
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Senior Engineer - Machine Learning
Ambler or New York City
HybridFull Time
Berkadia
Berkadia: Commercial real estate financing, investment sales, and servicing.
6+ YOERequires 6+ years of Python-focused software development, traditional ML and generative AI systems, AI agents, evaluation harnesses, cloud infrastructure, MLOps, unstructured data, Agile, and CI/CD; bachelor's preferred.
Python, React, JavaScript, MLOps, CI/CD, Agile, Berkie
1mo
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Senior Software Engineer
Aberdeen, Maryland, United States
$90k-$198k/yr OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
10+ YOE10+ years software engineering experience in Defense, BA/BS or equivalent experience, proficiency with C++, Java, Python, C#, secure coding and Defense standards, DoD cybersecurity certification preferred.
C++, Java, Python, C#, Git, SVN, CI/CD, automated testing tools
1w
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Senior Software Engineer
Berwyn, Pennsylvania, United States
HybridFull Time
Envestnet
Envestnet: Provides an integrated wealth management technology platform for advisors.
7+ YOE7+ years backend engineering with Java/Python, 2+ years hands-on AI/ML, experience designing distributed transactional systems in regulated fintech, security/observability knowledge, and production incident handling.
Java, Python, Spring Boot, SQL, Kafka, Kubernetes, Docker, LangGraph, RAG, Vector Stores
3w
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Senior DevSecOps Engineer
King of Prussia, Pennsylvania, United States
$97k-$171k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
US citizen with ability to obtain Secret clearance; experience with microservices, containerization, Linux/Windows administration, CI/CD DevSecOps, scripting (Bash/Python/Ansible/PowerShell), git/GitLab, and classified infrastructure support.
Kubernetes, VMWare, Linux, RHEL, RockyOS, Microsoft Windows, Git, GitLab, Bash, Python, Ansible, YAML, PowerShell, Vault
2w
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Data Engineer I (Databricks, AWS, Python)
Hartford or St. Paul or Hunt Valley
$109k-$180k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
6+ YOEBachelor's in STEM, ~6 years related experience, expertise in Python, SQL, AWS, Databricks, Terraform, OpenAI/AWS Bedrock; API design and data engineering skills required.
OpenAI, AWS Bedrock, Python, SQL, AWS, Databricks, Terraform
2w
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Senior Software Developer (NLP)
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEUS citizen with Secret clearance; bachelor’s degree with 5 years relevant software development experience (or 8 years experience); experience integrating NLP into production, proficiency in modern programming languages and mission-critical systems.
Python, C++, Java, C#, Go, Docker, Kubernetes, transformer-based frameworks, vector databases, LLM APIs

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