585 senior python developer jobs at 200 companies in Downingtown, PA

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
4d
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Senior Python Engineer, Integration
Philadelphia or New York City or Austin or Sofia or Belgrade
RemoteContract
Fliff
Fliff: Operates a social sportsbook platform offering free-to-play gaming.
5+ YOE5+ years Python development experience focused on API and third-party integrations, observability, testing, and on-call production support.
Python, Django, Datadog, CloudWatch, Grafana
1w
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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
1mo
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Senior Python Development Lead
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Brown Brothers Harriman
Brown Brothers Harriman: Providing global investment management, custody, and private banking services.
15+ YOE5+ Mgmt15+ years in data engineering/software development; Python/Django; ETL pipelines; data visualization; Agile; Linux; security; leads 5-6 juniors
Python, Django, SQL, Bash, JavaScript, Plotly Dash, D3.js, AG Grid, Apache Airflow, FastAPI, Linux, Git, 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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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
13h
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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
3mo
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Senior Software Engineer
Moorestown, New Jersey, United States
OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
5+ YOEBachelor's degree or higher in engineering/computer science or related field; 5-7 years in software development; US citizenship with active DoD Secret clearance; strong C++, Java, Python skills; radar/real-time system experience preferred.
Java, C++, Python, Matlab, Eclipse, Linux, UNIX, UML, Cameo, JIRA, Clearcase, xUnit, JUnit, CPPUnitLite
3mo
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Senior Software Developer
Aberdeen, Maryland, United States
$104k-$181k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Provides engineering and technology services for infrastructure and defense.
5+ YOEDesign, develop, and implement software across multiple languages; lead components; troubleshoot; mentor and guide developers; ensure secure, maintainable results. Must be a US citizen with SECRET clearance.
Python, C++, Java, C#, Go, Docker, Kubernetes, CI/CD
3d
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Senior Developer
Allentown or Louisville or Rhode Island
RemoteFull Time
PPL Corporation
PPL CorporationNYSE: PPL: Provides electricity transmission, distribution, and utility services.
5+ YOEBachelor's degree and 5+ years of related software development experience; familiarity with C#, Java, Python, Azure and MQ Series; strong problem solving, collaboration, and utilities experience preferred.
C#, Java, Python, Azure, MQ Series, Microservices, DevOps, Multi-Cloud technologies, IoT, Intelligent Automation, RPA, Test automation, artificial intelligence, Cloud Architecture, API's
3mo
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Senior Software Engineer, Backend
Philadelphia, Pennsylvania, United States
$160k-$210k/yr OnsiteFull Time
Perpay
Perpay: Financial platform offering interest-free shopping and credit building via payroll.
5+ YOE5+ years web apps; 2+ years leading teams; PostgreSQL; AWS; Docker/Kubernetes; Python/Django or Rails; strong communication.
JavaScript, Python, Django, Flask, React, React Native, Redux, Kubernetes, AWS, Docker, Celery, Redis, Datadog, CloudWatch
3mo
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Senior Software Developer
Conshohocken or Portland or Bucharest or Ia\u00021si or Barcelona or Tokyo or United States
OnsiteFull Time
Suvoda
Suvoda: Software for clinical trial randomization and patient data collection.
6+ YOE6+ years software development experience, deep Python, relational databases and AWS experience, EMR not stated, Django and Angular preferred, bachelor's or equivalent experience, production-support mindset.
Python, Django, Angular, AWS, Claude Code
3w
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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
4w
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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
1mo
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Senior Software Engineer
Mount Laurel, New Jersey, United States
$135k-$273k/yr OnsiteFull Time
Innovative Defense Technologies
Innovative Defense Technologies: Develops automated defense solutions and mission-critical software for U.S. government customers.
7+ YOEBachelor's in a technical discipline (or equivalent), 7+ years software development experience, proficiency in C++, Java, Python, or JavaScript, Git, Linux, SQL/PostgreSQL, container tech (Docker/Podman/OCI), ability to obtain/maintain Secret clearance, up to 10% travel.
C++, Java, Python, JavaScript, Git, Linux, SQL, PostgreSQL, Docker, Podman, OCI-compliant containers, Bash, PowerShell, Groovy
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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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
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
1mo
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Senior Cloud Engineer
Barcelona or Batumi or Tbilisi or Philadelphia
HybridFull Time
MIGx
MIGx: Provides specialized IT consulting and digital transformation for life sciences.
6+ YOE6+ years cloud infrastructure deployment; 5+ years Linux engineering; AWS/Azure/Google Cloud; AWS Solutions Architect Professional; Bash/Shell scripting; Ansible, Chef, Terraform; Slurm/DRM; Python/R; Git/BitBucket.
AWS, Azure, Google Cloud, Ansible, Chef, Terraform, CFN, Slurm, Python, R, Shell scripting, Git, Bitbucket
2mo
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Senior Database Engineer - Platform Engineering
Philadelphia, Pennsylvania, United States
RemoteFull Time
IntegriChain
IntegriChain: Provides data and applications for pharmaceutical therapy commercialization.
7+ YOE7+ years in database/platform engineering; multi-engine experience; cloud data platforms; IaC and CI/CD emphasis.
AWS, RDS, Aurora, DynamoDB, Redshift, Snowflake, Azure SQL, PostgreSQL, Kinesis, MSK, Glue, Lake Formation, dbt, Airflow, Terraform, AWS CDK, GitHub Actions, CodePipeline, Python, SQL, boto3, OpenSearch, DocumentDB, ElastiCache, SageMaker, Bedrock, pgvector, LLM
1w
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Senior Machine Learning Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
8+ YOE8+ years related experience (≥3 years development), undergraduate degree or equivalent, expertise in Python and modern data science libraries, AWS SageMaker experience, MLOps and CI/CD, production ML and feature engineering.
Python, Pandas, NumPy, Scikit-Learn, PyTorch, TensorFlow, AWS SageMaker, MLOps, CI/CD

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