24 senior staff software engineer jobs at 12 companies in Brookside, DE

4w
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Staff Engineer, Software (sys)
Fort Washington, Pennsylvania, United States
OnsiteFull Time
Kulicke & Soffa
Kulicke & SoffaNASDAQ: KLIC: Designs and manufactures semiconductor and electronics assembly equipment.
10+ YOE10+ years software engineering experience, Bachelor/Master in CS/Software/Computer/Electrical Engineering, proficient in C and C++, strong OO design and architecture skills, leadership and project management experience.
C, C++
1w
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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
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
2mo
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C++ Software Engineer (Senior, Staff, or Lead)
Philadelphia, Pennsylvania, United States
$135k-$185k/yr OnsiteFull Time
Ghost Robotics
Ghost Robotics: Developing autonomous quadrupedal robots for defense and industrial applications.
5+ YOEStrong modern C++ (C++17/20) production experience, Linux, Git, GitLab CI/CD, CMake, debugging, concurrency, and system design. Senior+ levels require 5+ years (Staff 8+, Lead 10+) and permanent U.S. residency; clear background checks required.
C++17, C++20, Linux, Git, GitLab CI/CD, CMake, Docker, ROS, ROS 2, Python
1mo
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Staff Software Engineer (Frontend Developer)
Colorado Springs or King of Prussia or California or Massachusetts or New York or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or Vermont or Washington or District of Columbia
$114k-$227k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
5+ YOEFrontend development with Angular, JavaScript, CSS, HTML; REST and Docker experience; UI/UX tools and test frameworks; 5+ years relevant experience; Secret clearance and U.S. citizenship required/preferred candidates in CO or PA.
Angular, JavaScript, CSS, HTML, REST, Docker, Figma, MockFlow, UXPin, Axure, Cypress, Selenium, Playwright, Jest, Kubernetes, Helm, GitLab CI/CD, gRPC, Python, Flask
3mo
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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.
1mo
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Staff Systems Engineer
Aurora or Ypsilanti or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOETS/SCI with Poly required, Bachelor's in CS/Systems/IT or related, 5+ years in software development or systems engineering, IAT Level II/III (Security+, CISSP, or CASP), Scrum/Agile experience, ability to develop requirements and test procedures.
Scrum, Agile, Cameo, DOORS, DOORS Next Gen, XML, JSON
4w
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Senior Staff Agentic AI Engineer
Columbus or Chadds Ford or Frisco or Draper or New York or Wilmington
$156k-$333k/yr HybridFull Time
Bread Financial
Bread FinancialNYSE: BFH: Provides credit cards, consumer loans, and personal savings accounts.
12+ YOEBachelor's degree, 12+ years software engineering experience with 2+ years in AI/ML or agentic systems, 3+ years implementing IaC (Terraform or Ansible), strong safety/compliance and productionization experience, US work authorization required.
LangChain, LangGraph, AutoGen, CrewAI, LangSmith, Arize Phoenix, Weights & Biases, AgentSpec, Amazon Web Services (AWS), Datadog, OpenAI, Grafana, PostgreSQL, Prometheus, New Relic, Redis, Terraform, Ansible, Kubernetes, SQL
2w
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Staff HITL Engineer/Lab Manager, Connected Warfare
Aberdeen, Maryland, United States
$143k-$191k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
8+ YOEBachelor's in software/systems engineering or equivalent,8+ years testing C2 software/hardware including RF/datalinks, experience with test planning/execution/reporting, Linux and scripting, ability to obtain U.S. Secret clearance.
Lattice, Linux, Go, Java, C++, Python, JavaScript, YAML, CI/CD, Netropy, iperf, tc, Netdata, NATS
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
3w
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Mid-Level Electrical Engineer (Generation)
Boise or Meridian or Seattle or Houston or Oradell or Mount Laurel or Overland Park or Atlanta
$86k-$151k/yr OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
5+ YOEBachelor's in Electrical Engineering, 5+ years experience, EIT, proficiency with power system design, codes, and discipline-specific software; ability to lead projects and mentor junior staff.
CADD, Aspen, CAPE, ETAP, AutoCADD
1w
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Sr Staff Fullstack Developer (Frontend focused)
Exton or Boulder or Huntsville or Dayton
$136k-$204k/yr OnsiteFull Time
Synopsys
SynopsysNasdaq: SNPS: Provides software and IP for semiconductor design and manufacturing.
4+ YOEBachelor's with 8 years, master's with 6, or PhD with 4; front-end and back-end development expertise, cloud deployment, web components, Git, Agile, and testing experience.
HTML5, CSS3, JavaScript, React, Angular, C#, Java, Python, Node.js, Docker, Kubernetes, AWS, Microsoft Azure, Git, Jasmine, Karma, Jest, Vitest, Ansys
3w
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Traffic Engineer/Transportation Planner
Mechanicsburg or King of Prussia or Canonsburg or Pittsburgh or Philadelphia
OnsiteFull Time
Dewberry
Dewberry: Provides engineering, architecture, and consulting for infrastructure and environments.
10+ YOEBSCE and PA PE required, 10+ years traffic/transportation experience, familiarity with MUTCD,AASHTO,HCM,HCS,Synchro/Sim Traffic Software; PTOE desirable; experience managing and mentoring staff and QA/QC.
MUTCD, AASHTO, HCM, HCS, Synchro/Sim Traffic Software