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207 systems software engineer jobs at 115 companies in Allentown, PA

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Software Systems Engineer
King of Prussia, Pennsylvania, United States
$73k-$129k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
US citizen with final Secret clearance required; experience in systems engineering (requirements/ICD development, subsystem design, or system/software modeling); familiarity with MBSE/Cameo (MagicDraw), DOORs, and DOD software CDRL development; strong communication skills.
Cameo Systems Modeler (MagicDraw), Cameo Enterprise Architecture, DOORs
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3mo
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Systems Engineer
Aberdeen Proving Ground or Fort Belvoir or Huntsville or Austin or Tobyhanna Army Depot or Letterkenny Army Depot or Lakehurst
OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
5+ YOE5+ years of systems engineering; strong ability to design, integrate and test complex hardware/software systems; gather requirements and document configurations.
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Senior Systems Engineer
King of Prussia, Pennsylvania, United States
$108k-$228k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOEActive TS/SCI with polygraph, Bachelor’s in CS/Systems/IT/Engineering, 8+ years systems or software engineering, experience translating mission needs into AI/ML requirements, Scrum/Agile experience, ability to develop test procedures and mentor engineers.
Cameo, DOORS, DOORS Next Gen, GitLab, XML, JSON, Scrum, Agile
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1w
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Systems Engineer - Integration & Test
Aurora or King of Prussia or Chantilly or Colorado Springs
$69k-$142k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOEActive TS/SCI clearance, bachelor's degree in systems engineering, computer science, software engineering, or related engineering field, and 3+ years of systems engineering experience including integration and testing.
Jira, Azure DevOps, TestRail, Python, Bash, PowerShell, Linux, Playwright, Selenium, PyTest, Robot Framework, TCP/IP, REST APIs, XML, JSON, Docker, Kubernetes, Cameo Systems Modeler, SysML, MBSE
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Systems Engineer 3
Newtown, Pennsylvania, United States
$115k-$120k/yr OnsiteFull Time
OSI Systems
OSI SystemsNASDAQ: OSIS: Manufacturer of specialized electronic systems for security and healthcare.
5+ YOEBachelor’s degree in a technical discipline, 5+ years of systems engineering experience, hardware/software integration, testing, troubleshooting, validation, cybersecurity knowledge, and travel readiness.
Linux, AGILE, AI-based tools, STIG
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3w
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Software Engineer - Control Systems
Princeton, New Jersey, United States
$150k-$235k/yr OnsiteFull Time
Logiqal
Logiqal: Developing modular quantum computing systems using neutral atom technology.
Hands-on instrumentation and software fundamentals; hardware-in-the-loop testing, data pipelines, distributed monitoring; experience integrating high-speed cameras, RF signal generators, GPUs, and Linux kernel customizations.
high-speed cameras, RF signal generators, GPUs, Linux kernel
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Quality Systems Engineer
Easton, Pennsylvania, United States
OnsiteFull Time
Victaulic
Victaulic: Manufacturer of mechanical pipe joining and flow control systems.
Bachelor's in engineering, experience with quality management systems/enterprise quality software, strong QA documentation/control knowledge, analytical and communication skills, and continuous improvement experience.
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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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Electrical Systems Engineer
Philadelphia, Pennsylvania, United States
$79k-$123k/yr OnsiteFull Time
Noblis
Noblis: Provides science and technology solutions for government missions.
3+ YOEBachelor's in engineering,3+ years experience,active DoD Secret clearance,software testing and hardware troubleshooting experience,ability to travel internationally 20-30%.
Versa Module Eurocard (VME), TCP/IP, UDP
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Distinguished Software Engineer
McLean or New York City or Philadelphia or Wilmington
$245k-$335k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Provides credit card, banking, and auto loan services.
7+ YOEBachelor's degree, 7+ years of software engineering and cloud computing experience, and 5+ years across technical domains or consulting. AWS experience required; broad systems expertise and communication skills preferred.
AWS, Fargate, Lambda, Java, Python, Go, JavaScript, TypeScript
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2w
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Staff Software Engineer
Philadelphia or United States
$169k-$192k/yr OnsiteFull Time
Obsidian Security
Obsidian Security: Provides cybersecurity and threat detection for enterprise SaaS applications.
8+ YOE8+ years software engineering experience; proficiency in Python, Go, TypeScript or SQL; backend, APIs, distributed systems, Postgres, AWS/GCP, Docker/Kubernetes, Kafka/Redis; strong system design and cross-team leadership.
Python, Go, TypeScript, SQL, Postgres, AWS, GCP, Docker, Kubernetes, Kafka, Redis, Grafana, Prometheus, GitLab CI/CD
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Distinguished Software Engineer
McLean or New York City or Philadelphia or Wilmington
$245k-$335k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: A diversified financial services providing banking and credit products.
7+ YOEBachelor's degree, 7+ years in software engineering and AWS cloud computing, and 5+ years across technical domains or professional services; leadership, communication, and systems expertise required.
AWS, Java, Python, Go, JavaScript, TypeScript, Fargate, Lambda
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4d
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Senior Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
DrayNow
DrayNow: Real-time digital marketplace for intermodal freight shipping.
5+ YOEBachelor's degree in computer science, engineering, or related field; 5 years building software; 2 years AWS architecture; JavaScript, TypeScript, SQL, APIs, event-driven systems, and technical leadership.
Electronic Data Interchange (EDI), API, AWS, JavaScript, React, Node.js, Express, React Native, TypeScript, AWS Cloud Development Kit (CDK), Terraform, AWS Lambda, Amazon ECS, AWS Fargate, Amazon Aurora PostgreSQL, SQL, JSONB
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2d
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Senior Software Engineer II
Philadelphia or Pennsylvania or New York or New York City or Rochester
$95k-$159k/yr OnsiteFull Time
Elsevier
ElsevierLondon Stock Exchange: REL: Provides scientific, technical, and medical research information and analytics.
5+ YOERequires 5+ years of software engineering experience, a bachelor's degree in engineering or computer science or equivalent, advanced development knowledge, data modeling, storage systems, and multiple programming languages.
Agile, Waterfall, Java, J2EE, JavaScript, JSP, C, C++, HTML, XML, SQL, Microsoft Windows, UNIX, .NET
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3w
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OT Systems Engineer
King of Prussia, Pennsylvania, United States
OnsiteFull Time
GSK
GSKLondon Stock Exchange: GSK: Develops and manufactures innovative vaccines and specialty medicines.
1+ YOEBS/BA in engineering, life sciences or software (or 3+ years equivalent experience); 1+ year programming/troubleshooting with Emerson DeltaV, Rockwell PLCs, or Siemens Desigo; virtualization, integration protocols (OPC, ODBC, Ethernet-IP), Hyper-V, cybersecurity and GMP familiarity.
Emerson DeltaV, Emerson Syncade, Rockwell PLCs, Siemens Desigo, OPC, ODBC, Ethernet-IP, Microsoft Hyper-V
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1mo
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Staff Software Developer
Canada or Philadelphia
$170k-$220k/yr RemoteFull Time
PENN Entertainment
PENN EntertainmentNASDAQ: PENN: Operates integrated casino gaming and online sports wagering platforms.
7+ YOE7+ years software engineering experience; strong CS fundamentals, distributed systems, PostgreSQL, GraphQL, gRPC, SQL, Kubernetes, observability (DataDog, Bugsnag); comfortable with Elixir, Java, Rust, TypeScript; testing framework experience; mentoring skills.
Elixir, Java, Rust, TypeScript, GraphQL, gRPC, SQL, PostgreSQL, Kubernetes, DataDog, Bugsnag, ExUnit, RSpec, Jest, pytest, AI
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4w
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Senior Software Engineer, Backend FinPlatform
New York City or San Francisco or Salt Lake City or Los Angeles or Seattle or Austin or Washington or Philadelphia or San Diego or Chicago or Atlanta or Australia or Canada or South America
$146k-$215k/yr RemoteFull Time
Flex
Flex: A financial platform allowing renters to split monthly rent payments.
6+ YOE6+ years software engineering experience, 4+ years with Java, experience with backend systems, APIs, data pipelines, AWS, and distributed teams.
Java, Spring, Gradle, JUnit, JVM, AWS, EKS, Aurora RDS, Elasticache, DynamoDB, GitHub Actions, git, DataDog, Snowflake, CDK, Terraform
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6d
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Embedded Software Engineer
Malvern, Pennsylvania, United States
OnsiteFull Time
ifm electronic
ifm electronic: Manufactures sensors and control systems for industrial automation.
3+ YOEBachelor's degree in a related engineering or computer field and 3+ years of embedded software experience; requires C/C++, microcontrollers, real-time systems, hardware interfaces, debugging, version control, and communication skills.
C, C++, I2C, SPI, DMA, UART, ARM Cortex-M, STM32, IO-Link, MODBUS, RS-485, MATLAB, Python, RTOS
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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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Nuuly Senior Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Urban Outfitters
Urban OutfittersNasdaq: URBN: Retails fashion apparel, home goods, and subscription-based clothing rentals.
5+ YOE5-7 years software engineering experience with ~2 years senior-level responsibility; strong JVM (Java/Kotlin/Scala), microservices, Postgres/AlloyDB, cloud (GCP/AWS/Azure), Docker/Kubernetes, distributed systems, and AI tool usage.
Kotlin, Spring, Postgres, AlloyDB, Google Cloud Platform (GCP), AWS, Azure, Docker, Kubernetes, Java, Scala, Python, Go, Node/TypeScript, Kafka, Spark, Storm, ChatGPT, Claude, Cursor, Windsurf, Copilot
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