248 software system engineer jobs at 136 companies in West Chester, PA
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Controls System Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
3+ YOEBachelor's degree or post-secondary education in automation, computer science, electrical engineering, or electronics; 3+ years in controls engineering software; PLC, SCADA/HMI, Microsoft tools, English, and travel eligibility required.
Siemens TIA Portal, Siemens STEP 7, Rockwell, B&R, Siemens WinCC, Movicon, Microsoft Outlook, Microsoft Project, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, PLC, SCADA, HMI, FAT, SAT, IQ/OQ, PQ
2mo
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Software Engineer
Aberdeen Proving Ground, Maryland, United States
$130k-$170k/yr OnsiteFull Time
5+ YOEMinimum 5 years software/systems engineering experience, proficiency in C++, Python or Java, Secret clearance, familiarity with systems engineering, IPTs, and test events; Bachelor’s in CS/Software Engineering preferred (experience may substitute).
C++, Python, Java, Kubernetes, NGTS, SIMDIS, TAK, AIDP, AFATDS, MEPED, JSDR, EWC2, EWPMT-X
3w
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Software Systems Engineer
Auburn or Aberdeen
$65k-$175k/yr OnsiteFull Time
Bachelor's in engineering/computer science, US citizenship, ability to architect software, produce system engineering artifacts, develop test plans, perform integration, and travel for customer support.
C++, cmake, Docker, Kubernetes, Helm, git, CI/CD
3d
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Lead System Protection Engineer 2 - Grid
Wilmington, Delaware, United States
$135k-$206k/yr HybridFull Time
10+ YOEBachelor's degree in Electrical Engineering and 10+ years in transmission or substation system protection, including relay settings, protection studies, CAPE or ASPEN, relay software, and P&C drawings.
CAPE, ASPEN, SEL AcSELerator, EnerVista, Powerbase, Python, MATLAB, Microsoft Excel, Artificial Intelligence (AI)
3d
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System Test Engineer
Thorofare, New Jersey, United States
$85k-$102k/yr OnsiteFull Time
4+ YOERequires 4+ years in system testing, validation engineering, or QA for integrated hardware-software systems; embedded Linux, scripting, networking, REST APIs, automation, and hardware debugging experience; engineering bachelor's degree or equivalent experience.
Embedded Linux, PractiTest, Python, Bash, Jenkins, GitLab CI, Azure DevOps, Wireshark, tcpdump, Postman, curl, Docker, VMs, MQTT, REST APIs, TCP/IP, DHCP, DNS, JTAG, I2C, SPI, UART
2w
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Staff Software Engineer
Philadelphia or United States
$169k-$192k/yr OnsiteFull Time
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
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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Distinguished Software Engineer
McLean or New York City or Philadelphia or Wilmington
$245k-$335k/yr OnsiteFull Time
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
5d
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Senior Software Engineer
Conshohocken, Pennsylvania, United States
HybridFull Time
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
3d
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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
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
1mo
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Lead Software Engineer-AI
Columbus or Wilmington
OnsiteFull Time
7+ YOE7+ years applied software engineering experience; strong system design and production engineering skills; proficiency in Python or TypeScript; experience with agent frameworks (e.g., LangChain, LlamaIndex), LLM API integration, cloud-native systems, and evaluating reliability/observability.
Python, TypeScript, LangChain, LlamaIndex, AutoGen, CrewAI, Cloud Foundry, GKP, Jules CI/CD, TrueCD, Sophia auth
2mo
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Senior Software Engineer
Arlington or Mount Laurel or San Diego or Fall River
$135k-$273k/yr HybridFull Time
7+ YOEBachelor's degree or equivalent, 7+ years software engineering experience, able to obtain/maintain Secret U.S. security clearance, experience leading/mentoring, expertise in SDLC, OOP, distributed systems, secure coding, testing, and integration.
SDLC, Service-Oriented Architecture (SOA), AI, Generative AI
1mo
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Principal Software Engineer
Moorestown, New Jersey, United States
$128k-$218k/yr OnsiteFull Time
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
2mo
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Lead Software Engineer
Newark, Delaware, United States
$128k-$201k/yr OnsiteFull Time
6+ YOE6+ years software engineering experience building cloud and edge systems; experience in regulated environments, secure development practices, QMS familiarity, AI integration, Agile and version control proficiency; degree in CS/SE/STEM.
Microsoft Azure, Google Cloud Platform (GCP), Agile
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Senior System Engineer
Royersford, Pennsylvania, United States
OnsiteFull Time
5+ YOEOn-site IT engineer to support imaging center operations, manage hardware/software, handle escalations and on-call support, onboard customers, and improve processes; US citizen eligible for Public Trust required.
Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server 2016, SQL Database, Active Directory, Kofax, PowerShell
2mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
7+ YOESenior software engineer with DoD experience, specializes in biometric systems, secure coding, and Agile/DevSecOps.
Android, CI/CD, DevOps, DevSecOps, Security, Encryption
1d
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Software Engineer Stf - E4
King of Prussia, Pennsylvania, United States
$136k-$252k/yr OnsiteFull Time
Deep software engineering experience, ground subsystem and distributed systems expertise, microservices, cloud/containerization, Scaled Agile development, and active TS clearance with ability to obtain SCI.
Java, C#, Rust, Angular, Python, Apache Kafka, Apache ActiveMQ, ELK Stack, OpenSearch, PostgreSQL, Redis, Helm, Kubernetes, Git, DevSecOps, Agile, Scaled Agile Framework, CI/CD
1w
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Senior Software Engineer ILS
Trenton, New Jersey, United States
$100k-$125k/yr RemoteFull Time
4+ YOERequires 4+ years of software engineering experience, Python, distributed systems, microservices, relational databases, Kubernetes, data pipelines, AI/ML, optimization, and Agile/Scrum experience.
GitHub, Python, OpenShift, Kubernetes, SQL, SQL Server, Prefect, Airflow, Grafana, Nextmv, Microsoft Excel, Go, Golang, Supply Chain Guru, Llama.ai, Gains, Sophus, Starboard, Optilogic, TMOD
2mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions: Provides logistics and technical services to defense agencies.
7+ YOESenior software engineer with DoD biometric systems experience; security clearance required; Agile/DevSecOps; Android apps; cybersecurity.
Android, DevOps, DevSecOps, CI/CD, Security testing, Encryption
2mo
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Staff Software Developer
Canada or Philadelphia
$170k-$220k/yr RemoteFull Time
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