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189 software systems engineer jobs at 98 companies in Bethlehem, PA

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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
1mo
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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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2mo
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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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1mo
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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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2d
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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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2mo
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Staff Systems Engineer
Aurora or Ypsilanti or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOETS/SCI with poly; Bachelor's in CS, systems engineering, IT, or related field; 5+ years in software or systems engineering; strong cross-organizational communication; ability to develop requirements, test procedures, and traceability; experience with Scrum/Agile; IAT Level II or III certification.
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4w
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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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3mo
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Software Engineer
Picatinny Arsenal, New Jersey, United States
$175k-$210k/yr OnsiteFull Time
Science and Technology Corporation
Science and Technology Corporation: Provides scientific, engineering, and technical services to government agencies.
10+ YOEEmbedded software for defense systems; 10+ years RDT&E experience; DoD Security Clearance; Master’s degree.
Embedded systems, Microcontrollers, FPGAs, ASICs, SOC, AI, ML, HWIL, SWIL
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3mo
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Software Engineer
Picatinny Arsenal, New Jersey, United States
OnsiteFull Time
ApolloTech MSI
ApolloTech MSI: Develops autonomous robotics and AI for defense.
Bachelor's/Master's/PhD in CS/Software Eng; strong C++, Python, Kotlin; embedded systems with C++/ROS2; experience with Nvidia Jetson; Unreal Engine a plus; strong problem solving and communication; US Citizenship and Secret Clearance required.
C++, Python, Kotlin, ROS2, Nvidia Jetson, Unreal Engine, Gitlab
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1mo
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SSDS Senior Systems Engineer
Moorestown, New Jersey, United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
Requires active Secret security clearance and U.S. citizenship; prior US Navy and SSDS/ship combat-systems experience; knowledge of radars, sensors, NATO missile and weapon systems; proficiency with Microsoft Office, MS Project, and Visio; ability to support software baselines and Agile-Scrum updates.
SSDS, Microsoft Office Suite, MS Project, Visio, Agile-Scrum
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2w
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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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3mo
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Distinguished Engineer – Software / Embedded Systems Engineering
Coopersburg or Philadelphia
OnsiteFull Time
Lutron Electronics
Lutron Electronics: Designs and manufactures lighting and shading control systems.
5+ YOEBachelor’s degree in Computer Science or Electrical Engineering; 5+ years designing, developing, and shipping software/hardware; strong mentorship and communication skills.
Embedded Systems, Software Engineering
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1mo
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Lead Software Engineer
Basking Ridge or Minneapolis or Washington or United States
$113k-$193k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
8+ YOE8+ years software/data/ML engineering, 3+ years designing large-scale data/AI implementations; hands-on with Python, Java, .Net, SQL, Databricks, Spark, PyTorch/TensorFlow, LLMs/SLMs, cloud platforms (Azure/AWS/GCP), vector DBs and RAG systems.
Claude Code, GitHub Copilot, Codex, Python, Java, Scala, TypeScript, .Net, SQL, SQL Server, Oracle, Databrick, Databricks, Microsoft Power BI, PyTorch, TensorFlow, Scikit-learn, Llama models, Claude, Spark, Flink, Kafka, lakehouse, Azure, AWS, GCP, FAISS, Pinecone, Chroma, Retrieval-Augmented Generation (RAG)
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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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6d
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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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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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2d
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Staff Software Engineer
Princeton, New Jersey, United States
$219k-$258k/yr HybridFull Time
Noom
Noom: Digital health platform offering psychology-based weight management programs.
8+ YOE8+ years backend engineering experience at staff level, strong Java or Kotlin and Spring, distributed systems, relational databases, cloud infrastructure (AWS preferred), leadership and AI tooling experience.
Java, Kotlin, Spring, AWS
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1mo
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Sr. Software Engineer - AI Agentic
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOE7+ years building production agentic AI systems or equivalent software experience; hands-on with Agent Development Kit (ADK) and Python; experience with Gemini Enterprise; strong prompt engineering and AI-integrated SDLC skills.
Agent Development Kit (ADK), Gemini Enterprise, Python, AgentOps, MLOps
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3w
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Lead Software Engineer
King of Prussia, Pennsylvania, United States
RemoteFull Time
Vertex
VertexNASDAQ: VERX: Automates global indirect tax calculation and compliance for enterprises.
5+ YOEBachelor's in CS/Information Systems/Electrical Engineering (or equivalent) and 5+ years experience with Java, Python, Go, SD QA, DevOps pipelines and cloud (AWS/Azure); strong design, automation and stakeholder coordination skills.
Java, Python, Go, AWS, Azure
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2mo
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Software Developer - Global Routing | Experienced Hire
Bala Cynwyd, Pennsylvania, United States
OnsiteFull Time
Susquehanna International Group
Susquehanna International Group: Global quantitative trading and market making firm.
Experienced software developer with expertise in routing software and distributed systems.
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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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