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25 principal engineer software development jobs at 18 companies in Reading, PA

2mo
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Principal Software Development Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
15+ YOEExtensive experience in Linux-based systems and C/C++/Golang/Python; knowledge of distributed systems, cloud-native/containerized environments, and carrier-grade network infrastructure; 15+ years relevant experience and Bachelor's degree preferred.
Linux, C, C++, Golang, Python, Docker, Kubernetes
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1w
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Tech Lead/ Principal Software Engineer
Plymouth Meeting, Pennsylvania, United States
$182k-$200k/yr OnsiteFull Time
Towne Park
Towne Park: Valet parking and hospitality services for hospitals and hotels.
8+ YOE2+ MgmtBachelor's degree in a technical field, 8+ years developing enterprise software, and 2+ years leading engineering teams. Requires Azure, .NET/C#, Angular or React, SQL Server, NoSQL, REST APIs, Agile, and secure development experience.
Microsoft Azure, .NET, C#, Angular, React, SQL Server, REST APIs, Claude Code, GitHub Copilot, Cursor, OWASP, Python, Next.js, LLM, MCP
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1w
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Principal Engineer, Software Engineering - eCommerce Applications
Conshohocken or Delaware or New Jersey
$111k-$221k/yr RemoteFull Time
Cencora
CencoraNYSE: COR: Distributes pharmaceuticals and provides global healthcare supply chain solutions.
10+ YOEBachelor's degree and 10+ years in software engineering, including 3+ years in a principal, staff, lead, or equivalent role. Requires enterprise eCommerce experience and proficiency with modern architectures, programming, cloud, security, and DevSecOps.
Microservices, RESTful APIs, Java, C#, JavaScript, TypeScript, Python, Azure, AWS, Google Cloud, CI/CD, DevSecOps, Adobe Commerce, Magento, Salesforce Commerce Cloud, SAP Commerce Cloud, Shopify Plus, Adobe Experience Manager, Sitecore, Azure API Management, Okta, Azure AD, Auth0, Kubernetes
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5d
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Principal Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus or United States or Los Angeles or Philadelphia or San Francisco
$137k-$257k/yr HybridFull Time
Liberty Mutual
Liberty Mutual: Provides diversified property, casualty, and commercial insurance products.
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems expertise, cloud-native development, and proficiency with JavaScript/TypeScript, React, Node.js, and related tools.
JavaScript, TypeScript, React, Node.js, Next.js, Java, HTML/CSS, Micro Frontends, AWS, CDK, GitHub Actions, OAuth 2.0, OpenID Connect, OWASP Top 10, Playwright, JMeter, Datadog, Splunk, Bridgeway, MFE, CI/CD, DevOps, SecOps, Generative AI
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1mo
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Principal Software Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
Bentley Systems
Bentley SystemsNASDAQ: BSY: Software for designing, building, and operating global infrastructure.
12+ YOE12+ years in 3D runtime or game engine development, expert C++ (C++17/20/23), graphics APIs (Vulkan, DirectX 12, Metal), engine integrations, profiling/optimization, and strong communication.
C++17, C++20, C++23, Vulkan, DirectX 12, Metal, Unreal Engine, Unity, NVIDIA Omniverse, glTF, 3D Tiles
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6d
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Principal Software Engineer/Principal AI Engineer
Philadelphia or Massachusetts
$115k-$192k/yr RemoteFull Time
Elsevier
ElsevierLondon Stock Exchange: REL: Provides scientific, technical, and medical research information and analytics.
10+ YOE10+ years software engineering experience with hands-on enterprise AI systems taken to production; BS in engineering or computer science required, advanced degree preferred; expertise in LLMs, cloud, integration, architecture, and delivery.
Microsoft?
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2w
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Principal Software Engineer
Horsham or Markham or Canada
$128k-$178k/yr OnsiteFull Time
Coherent
CoherentNYSE: COHR: Manufactures lasers, engineered materials, and optical networking components.
8+ YOEUniversity degree in electrical engineering or computer science; 8+ years embedded software experience, 5+ years optical networking experience, expert C/C++, networking protocols, Agile, DevOps, and embedded Linux.
LLDP, OSPF, BGP, C, C++, CI/CD, DevOps, SONiC, FRRouting, Open vSwitch, Netconf, Open Config, Yang models, ROADM, ILA, Go, Python, Embedded Linux, ISO 9000, ISO 9001, ISO 14001
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6d
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Principal Software Engineer/Principal AI Engineer
Philadelphia or Massachusetts
$115k-$192k/yr RemoteFull Time
RELX
RELXLondon Stock Exchange: REL: Provides information-based analytics and decision tools for professional customers.
10+ YOE10+ years of software engineering experience with enterprise AI systems, production delivery, cloud platforms, LLMs, APIs, data pipelines, architecture, Agile, CI/CD, TDD, and technical leadership. BS in engineering or computer science required.
Microsoft Azure, AWS, Google Cloud Platform, Python, Java, TypeScript, JavaScript, SQL, MCP, RAG, CI/CD, TDD, APIs
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1mo
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Software Engineer Principal
Sioux Falls or Scottsdale or Louisville or Troy or Franklin or Easton
$104k-$174k/yr RemoteFull Time
Pathward
PathwardNASDAQ: CASH: Provides banking infrastructure and commercial financing solutions.
8+ YOEBachelor's or equivalent, typically 8+ years technical experience (6+ in software design), experience with .NET/C#/ASP.NET and related stack, Agile knowledge, cloud (Azure/AWS) preferred, strong communication and mentoring skills.
.NET, C#, ASP.NET, MVC, Classic ASP, VB Script, Entity Framework, WPF, JavaScript, IIS, HTML, CSS, XML/XSLT, MSMQ, NServiceBus, Microsoft Visual Studio, Microsoft Team Foundation Server, Git, Microsoft Azure DevOps, Microsoft Azure, AWS
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2mo
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Principal Software Engineer - AI Engineer
Jersey City or Wilmington or Palo Alto
$204k-$285k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
7+ YOE7+ years software engineering experience; strong Python and PyTorch/TensorFlow; experience with vector storage, agentic AI and LLM deployment, MLOps and CI/CD, cloud (AWS or Azure); leadership and responsible AI practices.
Python, PyTorch, TensorFlow, Vector storage systems, CI/CD, MLOps, AWS, Azure, LLM Suite
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2mo
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Principal Software Development Engineer (IC4) - Network Region Build (NRB)
United States or Abilene or Austin or Nashville or Chicago or Pittsburgh or Philadelphia or Saline
$115k-$235k/yr OnsiteFull Time
Oracle
OracleNYSE: ORCL: Provides cloud infrastructure and enterprise software for global businesses.
6+ YOEStrong software engineering in Python/Java/Go/Rust, networking fundamentals (BGP, TCP/IP, IPv6), experience with distributed systems, Git and CI/CD, Linux production environments; 6+ years experience.
Python, Java, Go, Rust, Git, GitHub Copilot, ChatGPT Enterprise, Oracle AI, Codex, YANG, OpenConfig, NETCONF, gNMI, OCI - DNS, TCP/IP
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3mo
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Principal Software Engineer
Philadelphia, Pennsylvania, United States
$115k-$124k/yr OnsiteFull Time
City of Philadelphia
City of Philadelphia: Provides municipal services and governance to the city of Philadelphia.
3+ YOEBachelor’s degree or equivalent; 3+ years in .NET/C# web development; SQL and database experience; public sector/government experience a plus.
C#, SQL, SQL Server, Oracle, PostgreSQL, MySQL, .NET, FAST/GenTax
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2d
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Principal Engineer-Annuity Platforms and Transformation
Bethlehem or Stamford or New York City or Holmdel
$127k-$208k/yr HybridFull Time
Guardian Life
Guardian Life: Provides life, disability, dental, and vision insurance products.
10+ YOEBachelor’s degree and 10+ years of software engineering experience. Requires enterprise platform leadership, insurance or annuity systems experience, API/event-driven architecture, cloud-native AWS development, and modern engineering tools.
Java, Spring Boot, .NET, Node.js, React, TypeScript, Next.js, Amazon Web Services (AWS), Amazon SNS, Amazon SQS, Apache Kafka, Amazon S3, OpenAPI, Swagger, Git, Jenkins, GitHub Actions, OAuth 2.0, JSON Web Token (JWT), Splunk, AppDynamics, JSON, XML, ALIP, ACORD, IRI Digital First, ACORD NGDS, DTCC Insurance & Retirement Services
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2d
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Senior Principal, Platform Engineering
Titusville or Horsham
$137k-$236k/yr HybridFull Time
Johnson & Johnson
Johnson & JohnsonNYSE: JNJ: Develops and manufactures pharmaceutical drugs and medical devices.
10+ YOE7+ Mgmt10+ years software engineering, 7+ years as a lead architect or principal engineer, and 2+ years with AI agents. Requires enterprise platform architecture, cloud-native, distributed systems, and regulated-environment experience.
TypeScript, NodeJS, NestJS, React, NextJS, GraphQL, REST APIs, Server-Side Rendering (SSR), Static Site Generation (SSG), Client-Side Rendering (CSR), AWS, API Gateway, Lambda, EKS, EC2, SNS, SQS, EventBridge, DynamoDB, RDS, S3, CloudFront, CloudWatch, IAM, Secrets Manager, Git, Jenkins, Terraform, Kubernetes, Docker, Infrastructure-as-Code, XENA, JPM deployment framework, Continuous Integration and Continuous Deployment (CI/CD) Pipeline
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2mo
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Principal Solutions Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Crane NXT
Crane NXTNYSE: CXT: Provides industrial technology for secure payments and product authentication.
5+ YOE5+ years software development experience in retail payments with expertise in POS integration, remote teamwork, Microsoft .NET Framework & Linux, C++/C#/Java, REST API and data exchange specifications.
Microsoft .NET Framework, Linux, C++, C#, Java, REST API
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2w
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Regional Geotechnical Principal
Mount Laurel or Philadelphia
$125k-$175k/yr OnsiteFull Time
ECS Limited
ECS Limited: Provides geotechnical, environmental, and facilities engineering consulting services.
12+ YOERequires 12 years of related experience, a civil or geological engineering degree, PE or PG licensure, geotechnical expertise, leadership, business development, project management, and advanced analysis software proficiency.
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3w
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Associate Principal Engineer - Senior C++ Developer
Fort Washington, Pennsylvania, United States
OnsiteFull Time, Contract
Nagarro
NagarroFrankfurt Stock Exchange: NA9: Global provider of digital engineering and IT consulting services
10+ YOE10+ years C++ development experience, proficient with STL, COM/DCOM, BOOST, multi-threaded programming, OO analysis/design; English (required) and German (preferred) communication skills.
C++, STL, COM/DCOM, BOOST, Tcl/Tk, Python
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2d
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Senior Principal, Platform Engineering
Titusville or Horsham or North America
$137k-$236k/yr HybridFull Time
Johnson & Johnson
Johnson & JohnsonNYSE: JNJ: Provides pharmaceutical products and medical technology healthcare solutions.
10+ YOE7+ Mgmt10+ years software engineering, 7+ years platform architecture or technical leadership, and 2+ years developing AI agents. Requires cloud-native full-stack, distributed systems, AWS, AI ecosystems, and XENA platform expertise.
TypeScript, NodeJS, NestJS, React, NextJS, GraphQL, REST APIs, Server-Side Rendering (SSR), Static Site Generation (SSG), Client-Side Rendering (CSR), AWS, API Gateway, Lambda, EKS, EC2, SNS, SQS, EventBridge, DynamoDB, RDS, S3, CloudFront, CloudWatch, IAM, Secrets Manager, Git, Jenkins, Terraform, Kubernetes, Docker, Infrastructure-as-Code, XENA, MCP, A2A, A2UI, Large Language Model (LLM), Retrieval-Augmented Generation (RAG), GitHub
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1d
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Principal AI/ML Engineer (Large Language Model)
Aurora or Philadelphia
$115k-$252k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
10+ YOEActive TS/SCI with adjudicated polygraph, bachelor's degree, 10+ years of experience, and 2+ years building LLM applications. Requires team leadership, Python, and machine learning expertise.
Large Language Models (LLMs), Llama Factory, PEFT, Retrieval Augmented Generation (RAG), Weaviate, Pinecone, LangChain, DSPy, Kubernetes, llama.cpp, vLLM, TGI, Python, PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, AWS Bedrock, OpenAI, ReAct, YOLO, Faster-RCNN, BERT, Gymnasium Gym, RLlib, Stable Baselines, HuggingFace, Nerfstudio, FiftyOne, Linux, AWS, EC2, S3, Lambda, Java, C++, Rust, Go, C#, CUDA, Podman, Docker, Rancher
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1d
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Principal AI/ML Engineer (Large Language Model)
Aurora or Philadelphia
$115k-$252k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOETS/SCI with adjudicated polygraph, bachelor's degree in a related field, 10+ years of experience, 2+ years building LLM applications, team leadership, Python, and machine learning expertise.
Large Language Models (LLMs), llama factory, PEFT, Retrieval Augmented Generation (RAG), Weaviate, pinecone, LangChain, DSPy, Kubernetes, llama.cpp, vllm, Python, PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, Sparse auto encoders, BERT, YOLO, Faster-RCNN, Gymnasium Gym, RLlib, Stable Baselines, HuggingFace, Nerfstudio, FiftyOne, Linux, AWS, Amazon EC2, Amazon S3, AWS Lambda, Java, C++, Rust, Go, C#, CUDA, Podman, Docker, Rancher
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