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44 principal software engineer jobs at 27 companies in Bethlehem, PA

3mo
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Principal Software Engineer
Atlanta or Boston or Morristown or Plano or St. Louis or St. Petersburg or Hyderabad
HybridFull Time
Zelis
Zelis: Providing healthcare payment and claims cost management solutions.
8+ YOE8+ years backend software engineering; degree or equivalent; cloud, IaC, CI/CD; APIs; strong communication; leadership.
TypeScript, Node.js, PostgreSQL, Angular, AWS, Terraform, Elasticsearch, CI/CD, SASS
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1w
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Principal Software Engineer
Trenton, New Jersey, United States
$106k-$142k/yr OnsiteFull Time
NFI Industries
NFI Industries: A transportation and logistics providing supply chain and freight solutions and developing digital twin capabilities.
7+ YOEBachelor's in Information Systems/Computer Science/Engineering, 7+ years engineering or software development experience, strong Python and SQL skills, test-driven development, communication, autonomous work, project leadership.
Python, SQL, Supply Chain Guru, Llama.ai, NextMV, Gains, Sophus, Starboard, Optilogic, TMOD, Go
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2d
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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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1mo
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Principal Software Engineer
Moorestown, New Jersey, United States
$128k-$218k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
8+ YOEBachelor's in engineering/computer science or equivalent, U.S. citizenship, ability to obtain Secret clearance, 8+ years software development experience in real-time/mission systems, experience with Java, C++, or Python, Linux/UNIX, and IDEs.
Java, C++, Python, Linux, UNIX, Eclipse, UML, Clearcase, JIRA, xUnit, Junit, CPPUnitLite, Assemblers
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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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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
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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1w
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Principal Software Engineer, Core Services
Wayne or Naperville
$160k-$185k/yr HybridFull Time
Frontline Education
Frontline EducationNYSE: ROP: Provides administrative and management software for K-12 school districts.
10+ YOE10+ years software engineering experience, bachelor’s in CS or equivalent, deep TypeScript/Node.js skills, cloud-native and distributed systems experience, leadership and mentoring experience.
TypeScript, Node.js, NestJS, EC2, Lambda, S3, SNS, SQS, Docker, Kafka, React, Kubernetes, GitHub Copilot, Claude Code, OpenAI Codex
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1mo
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Principal Software Engineer - Subscription & Paywall Platforms
Princeton, New Jersey, United States
$240k-$290k/yr HybridFull Time
Dow JonesNASDAQ: NWSA: A global news and business information provider delivering content across print, digital, mobile and live events.
12+ YOE12+ years software engineering experience with large-scale platform architecture; expertise in full-stack development, subscription/paywall systems, cloud-native architectures, APIs, databases, and applied ML for subscriptions.
React, Angular, TypeScript, NodeJS, SQL, NoSQL
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6d
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
ADT
ADTNYSE: ADT: Provides residential and commercial security and smart home services.
10+ YOEBachelor's degree or equivalent experience and 10+ years of software engineering experience. Requires distributed systems, cloud-native architecture, cross-team technical leadership, direct implementation, and communication expertise.
Java, Spring, TypeScript, JavaScript, Kotlin, Swift, Python, C, C++, AWS, GCP, Docker, Kubernetes, CI/CD
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1mo
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Principal Software Engineer - Subscription & Paywall Platforms
Princeton, New Jersey, United States
$240k-$290k/yr HybridFull Time
News Corp
News CorpNasdaq: NWSA: Global media, publishing, and digital information services.
12+ YOERequires 12+ years of software engineering experience, large-scale platform architecture and technical leadership, subscription/paywall expertise, full-stack development, distributed systems, cloud architectures, and cross-team technical influence.
React, Angular, TypeScript, NodeJS, SQL, NoSQL, AI, machine learning
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6d
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Principal Engineer, Platform Systems
Blue Bell or Boca Raton or Irving
$146k-$218k/yr HybridFull Time
ADT
ADTNYSE: ADT: Provides electronic security, automation, and alarm monitoring services.
10+ YOEBachelor's degree or equivalent experience and 10+ years of software engineering experience. Requires distributed systems, cloud-native architecture, cross-team technical leadership, hands-on implementation, communication, and mentoring expertise.
Java, Spring, TypeScript, JavaScript, Kotlin, Swift, Python, C, C++, AWS, GCP, Docker, Kubernetes
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2mo
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Principal Transmission Engineer
Lansdale, Pennsylvania, United States
OnsiteFull Time
Westwood Professional Services
Westwood Professional Services: Engineering and design services for infrastructure and energy projects.
10+ YOESupervisor of technical staff with 10+ years in power transmission design; ABET-accredited degree in Civil/Structural or Electrical Engineering; PE licensure; proficient in industry software.
PLS-CADD, MFAD, AutoCAD, Microsoft Office
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2mo
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Senior Principal Mechanical Engineer
Reading, Pennsylvania, United States
OnsiteFull Time
Worley
WorleyASX: WOR: Provides engineering and project delivery services for energy and resources.
Extensive mechanical engineering experience with project leadership, cost estimating and proposal writing; competent with engineering software and MS Office; bachelor’s in mechanical engineering required; PE preferred.
Microsoft Office
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1d
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Principal Engineer-AI/ML Engineering
Basking Ridge, New Jersey, United States
$190k-$231k/yr HybridFull Time
Verizon
VerizonNYSE: VZ: Provides wireless, broadband, and telecommunications services to customers.
6+ YOEBachelor’s degree in computer science, engineering, statistics, or related field with 6 years of experience, or master’s degree with 4 years. Requires software and data engineering, ML training/deployment, Python, data analysis, SQL or data mining, and system design.
Python, SQL
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1mo
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Senior Principal Electrical Engineer
Reading or Charlotte or Kansas City
OnsiteFull Time
Worley
WorleyAustralian Securities Exchange: WOR: Global professional services for energy, chemicals, and resources sectors.
Extensive electrical engineering experience with project leadership, cost estimating, technical consulting, knowledge of standards, competency with electrical engineering software and Microsoft Office; BS/MS in engineering required; PE preferred.
Microsoft Office Suite
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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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3mo
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Principal AI Engineer
Malvern, Pennsylvania, United States
HybridFull Time
Vanguard
Vanguard: Provides mutual funds, ETFs, and investment management services.
7+ YOE7+ years AI engineering; 5+ years programming (Java/Python/Shell); 5+ years IaC (Terraform/Crossplane); 5+ years AWS/Azure; 5+ years automation tools; 2+ years AI/Gen AI.
Java, Python, Shell scripting, Terraform, Crossplane, AWS, Azure, Ansible, Harness CD, GitHub Actions, Playwright, LLMs, embeddings, RAG pipelines, fine-tuning
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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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1mo
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Principal Data Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
Medical Guardian
Medical Guardian: Provides medical alert systems and emergency monitoring for seniors.
10+ YOE3+ Mgmt10+ years in data or software engineering, 7+ years building production data pipelines, strong Databricks/Spark/PySpark/SQL experience, Azure and streaming expertise, plus leadership and production operations experience.
Databricks, PySpark, Spark SQL, Spark, Python, SQL, Delta Lake, Databricks Workflows, CI/CD, Azure, Azure Event Hubs, Azure Stream Analytics, Azure Service Bus, Azure Data Factory, Azure Functions, ADLS, Azure Cosmos DB, Event Grid
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