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239 senior software engineer python jobs at 99 companies in Allentown, 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
Help us #BeatIndeed & #BeatLinkedIn
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
Help us #BeatIndeed & #BeatLinkedIn
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
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5d
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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
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1w
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AVP, Rating Platform Software Engineer (Python)
Philadelphia or Jersey City or Whitehouse Station
$131k-$189k/yr OnsiteFull Time
Chubb
ChubbNYSE: CB: Provides property, casualty, and life insurance and reinsurance services globally.
6+ YOE6+ years in software engineering or insurance technology, mastery of Python and SQL, experience building rating/pricing systems, testing frameworks, and system design; strong communication and regulatory environment experience.
Python, SQL, Claude Code, Cursor, Databricks, Snowflake, Duck Creek, Guidewire
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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
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3mo
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Senior Software Algorithm Engineer
Aurora or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEBS in STEM fields; 5+ years software development; lead interdisciplinary team; TS/SCI clearance; Python/C/C++, Java, or Rust; domains SDA/SATCOM/SIGINT; willing to polygraph.
Python, C/C++, Java, Rust, Linux, AWS, CUDA, OpenCV, Git, Docker, Kubernetes, S3, EC2, Lambda
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2mo
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Software Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Senior software engineer to design and deliver high-performance embedded and enterprise software. Requires expertise in C/C++, Java or C#, Python/scripting, Git, build systems, IDEs, CI/CD, and ability to obtain Top Secret clearance (US citizen).
C/C++, Java, C#, Python, Windows, Linux, Microsoft PowerShell, Bash, Git, CMake, Make, MSBuild, Gradle, Microsoft Visual Studio, CLion, VSCode, Eclipse, JIRA, Confluence, Boost, JUnit, PyTest, NUnit, Jenkins, Azure DevOps, GitLab CI, MATLAB/Simulink, SysML, ARINC 429, MIL‑STD‑1553
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2mo
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Senior Software Engineer, Platform Engineering
New York or Atlanta or Lawrenceville or Irving
$101k-$170k/yr HybridFull Time
SiriusXM
SiriusXMNASDAQ: SIRI: Audio entertainment providing satellite and streaming services.
5+ YOE5+ years software engineering experience; cloud projects (AWS preferred); proficiency in two programming languages; IaC (CDK/CloudFormation); modular libraries/APIs; CI/CD (GitHub Actions); strong collaboration; legal right to work in the U.S.
AWS, CDK, CloudFormation, GitHub Actions, TypeScript, Python, Datadog
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1mo
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Nuuly Senior Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Urban Outfitters, Inc.
Urban Outfitters, Inc.NASDAQ: URBN: Multinational lifestyle retail operating diverse apparel and home brands.
5+ YOE5+ years software engineering experience with ~2 years senior-level responsibility; strong JVM proficiency (Java/Kotlin/Scala), microservices, cloud (GCP/AWS/Azure), Kubernetes, Postgres/AlloyDB, distributed systems, and practical LLM/AI tooling experience.
Kotlin, Spring, Postgres, AlloyDB, Google Cloud Platform (GCP), AWS, Azure, Kubernetes, Docker, Java, Scala, Python, Go, Node, TypeScript, RESTful APIs, Kafka, Spark, Storm, ChatGPT, Claude, Cursor, Windsurf, Copilot, JVM, MCP
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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
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3w
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Senior Software Developer
Reston or Denver or Philadelphia
$120k-$160k/yr HybridFull Time
Iridium
IridiumNASDAQ: IRDM: Provides global voice and data satellite communication services.
8+ YOEBachelor's in CS or related, 8+ years software development experience, active Top-Secret/SCI clearance (recently active), proficiency in Python and Java, Linux/Bash, RESTful APIs, databases (PostgreSQL/MongoDB), CI/CD and containerization, strong communication and systems-level experience.
Python, Java, Bash, ELK stack (Elasticsearch, Logstash, Kibana), Elasticsearch, Logstash, Kibana, PostgreSQL, MongoDB, Kubernetes, Docker, Podman, ArgoCD, GitLab, JFrog Artifactory, Bitbucket, C++, TypeScript, Perl, XML, JSON, SQL, js, Apache Web Server, Jira, Confluence, Crucible, Git, Amazon Web Services (AWS), GovCloud, Atlassian
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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
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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
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2w
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Senior Software Engineer
Newtown, Pennsylvania, United States
FieldFull Time
EPAM Systems
EPAM SystemsNYSE: EPAM: Provides global digital platform engineering and software development services.
3+ YOE3+ years relevant software engineering experience; proficiency with at least one cloud or web tech (GCP, Azure, AWS, .NET) and one programming language (Java, C++, C#, Python, JavaScript, Golang, Swift); experience with Git or Docker; Agile experience.
GCP, Azure, AWS, .NET, Java, C++, C#, Python, JavaScript, Golang, Swift, Git, Docker, LinkedIn Learning
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1w
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Senior Software Engineer, IT Software Engineering
Dresher or Iowa or Lake Mary
OnsiteFull Time
Ascensus
Ascensus: Administers tax-advantaged retirement and education savings plans.
3+ YOE3+ years software engineering experience, bachelor\u0002s degree or equivalent, strong Python/JS/TypeScript/SQL skills, experience building production services, familiarity with LLM/RAG/agent workflows, strong engineering fundamentals.
Python, JavaScript, TypeScript, SQL, Cursor, Claude Code, Temporal, Azure, Azure AI Foundry, Azure DevOps, Salesforce, Langfuse, New Relic, OpenTelemetry, GitHub Copilot
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2d
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Senior Software Engineer, Robotics
Phillipsburg, New Jersey, United States
$140k-$160k/yr HybridFull Time
Oishii
Oishii: Grows premium fruit using indoor vertical farming technology.
6+ YOEBachelor's degree in CS or related,6+ years backend engineering with 3+ years in robotics,deep C++ expertise,Linux/Python/shell,Git/Jira,ROS knowledge; able to travel ~25% and support on-site deployments.
C++, Linux, Python, shell scripting, Git, Jira, SCADA, Robot Operating System (ROS), Prometheus, Grafana
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3w
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Senior Software Engineer | Research Tech | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm specializing in proprietary financial markets.
5+ YOE5+ years software engineering experience with C#, Python, and React; full-stack development; strong communication; Bachelor’s in CS/engineering/math/physics or related.
C#, .NET, Python, React, JavaScript
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1mo
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Senior Software Engineer
Horsham, Pennsylvania, United States
$81k-$132k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
5+ YOEBachelor's in EE or CS, 5+ years embedded software experience, 3+ years optical networking experience, expertise in C/C++, familiarity with L2/L3 protocols, CI/CD and DevOps practices, and proficiency with Embedded Linux.
C, C++, Go, Python, SONiC, FRRouting, Open vSwitch, LLDP, OSPF, BGP, Netconf, Open Config, Yang models, Embedded Linux, CI/CD, DevOps
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2mo
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Sr. Software Engineer
Wayne or Naperville
$120k-$135k/yr HybridFull Time
Frontline Education
Frontline EducationNYSE: ROP: Provides administrative and management software for K-12 school districts.
5+ YOE5–7 years backend engineering or intelligent systems with production impact; strong Python, CI/CD, and system design; experience with ML model APIs and cloud inference; familiarity with vector databases and retrieval systems.
Python, CI/CD, AWS Bedrock, Azure OpenAI, Google Vertex AI, PyTorch, Hugging Face Transformers, vLLM, FAISS, Pinecone, OpenSearch/KNN, LangChain, LlamaIndex, MLflow, Weights & Biases, Prometheus
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3w
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Senior Software Engineer | Research Tech | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
5+ YOE5+ years software engineering experience; hands-on C#, Python, and React; full-stack proficiency; strong communication; Bachelor's in CS, CE, Mathematics, Physics, or related.
C#, .NET, Python, React, JavaScript
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1mo
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FedNow Senior Software Engineer
Boston or St. Louis or Cleveland or Philadelphia or Chicago or San Francisco or New York or Kansas City or Atlanta or Minneapolis or Dallas or Richmond
$150k-$225k/yr OnsiteFull Time
Federal Reserve System
Federal Reserve System: The central bank of the United States.
8+ YOESenior Software Engineer with 8+ years Java, 3+ years AWS cloud, cloud-first architectures, CI/CD, DevOps, and serverless experience.
Java, JavaScript, XML, JSON, HTML, CSS, Python, Linux, Unix, Windows, SQL, Oracle, DB2, Cloud, AWS, Serverless, Terraform, CI/CD, DevOps, Kafka
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