2,169 core developer jobs at 977 companies in United States
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Core App Developer II
Columbus or Fishers or Independence or Bellevue or Warren
OnsiteFull Time
3+ YOE3+ years experience in I-series/AS400 development, RPG/SQL RPG/CL coding, and Fiserv Signature; ability to design, code, test, support applications, and create technical documentation.
RPGLE, SQL RPG, CLLE, I-series AS400, Fiserv Signature, Fiserv Communicator, Microsoft Visio, Microsoft Office, PowerShell, SQL
2w
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Senior Core Infrastructure Engineer
Nashville, Tennessee, United States
OnsiteFull Time
8+ YOE8+ years software development experience (or degree+relevant years). Experience with distributed systems, cloud platforms, testing/automation, API development, source control, security, and system reliability.
AWS, Azure, Google Cloud, Oracle Cloud, Infrastructure as Code (IaC)
1w
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Core Java Developer - Trading / Securities Lending - Vice President
New York, New York, United States
$142k-$213k/yr HybridFull Time
6+ YOE6+ years applications development experience with Core Java; experience with Kafka, SQL, Git; QA/TDD/BDD practices; ability to work across geographies and with traders.
Java, Kafka, SQL, Git, React
1w
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Core Java Developer - Trading / Securities Lending - Vice President
New York City, New York, United States
$142k-$213k/yr HybridFull Time
6+ YOE6+ years applications development experience with Core Java, Kafka, SQL, Git; experience with QA,TDD/BDD, system analysis, agile delivery; strong problem-solving and stakeholder management.
Core Java, Java, Kafka, SQL, Git, React, TDD, BDD
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IMS Core Engineer
United States
RemoteFull Time
10+ YOE10+ years core telecom network experience, BSc in Telecommunications or Computer Science, strong IMS/VoLTE knowledge, SS7/SIP/Diameter experience, Wireshark and Linux proficiency, Python/Bash scripting preferred, fluent English.
Wireshark, Python, Bash, Linux, Unix
1d
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IT Core Banking Integrations Developer
Oak Ridge, Tennessee, United States
OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience, 3+ years in software development or systems integration, and experience with APIs, databases, enterprise integrations, secure development, testing, deployment, and regulated environments.
Jack Henry SymXchange, Symitar, Episys, PowerOn, .NET, C#, Java, Python, PowerShell, JavaScript, SQL, SOAP, XML, WSDL, REST, JSON, ETL, Microsoft
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Engineer III - Core Neutronics
Lynchburg, Virginia, United States
$100k-$110k/yr OnsiteFull Time
3+ YOEBachelor's in Engineering (or related), minimum 3 years' related experience, PWR/BWR core design or nuclear analysis experience, proficiency with industry codes and programming languages, strong communication and problem-solving skills.
ANC, SCALE, CASMO, SIMULATE, LINUX, FORTRAN, C/C++, PYTHON
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Sr. Core Backend Engineer
United States or Brazil
$171k-$181k/yr RemoteFull Time
7+ YOE7+ years building and scaling distributed backend systems; strong Go proficiency or equivalent; AWS, relational/NoSQL databases, REST/GraphQL, Terraform, and observability experience; BS/MS in CS or equivalent.
Go, AWS, CockroachDB, DynamoDB, REST, GraphQL, Terraform, Grafana
2mo
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Senior Core Network Engineer
Charlotte or Jersey City
$99k-$143k/yr OnsiteFull Time
10+ YOESenior network engineer with 10+ years in enterprise core networking, cloud networking, F5 BIG-IP, hybrid cloud, and automation.
F5 BIG-IP, AppViewX, Prisma SASE, Alkira, Kubernetes, Ansible, Python, Terraform, REST APIs, AWS, Azure, GCP
3w
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.NET Core / C# Development Lead
Atlanta, Georgia, United States
OnsiteFull Time
Lead development teams, design solutions, perform architecture and code reviews; strong C#/.NET Core experience, embedded systems integration, cloud connectivity, bachelor\u0002s degree or equivalent.
C#, .NET Core, ASP.NET Core, MVC, RESTful APIs, Web API, Microservices, Entity Framework Core, LINQ
2mo
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Core Audio Software Engineer
Cupertino, California, United States
OnsiteFull Time
Seasoned audio software engineer to lead spatial audio playback architecture, own audio decoding/rendering and real-time mixing engine (DSP) across Apple platforms, including Dolby Atmos.
Dolby Atmos
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Reactor Core Mechanical Engineer
Bethesda, Maryland, United States
$110k-$240k/yr HybridFull Time
Bachelor's in mechanical or nuclear engineering required (advanced degree preferred). Experience in mechanical design and structural analysis of reactor core components; proficiency with finite element and structural/vibration tools; knowledge of flow-induced vibration, fatigue, and shock loading.
ANSYS, ABAQUS
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Sr. Core Integration Engineer (Starlink Mobile)
Redmond, Washington, United States
$165k-$230k/yr OnsiteFull Time
5+ YOEBachelor's in STEM,5+ years integrating cellular core networks (EPC/5GC/IMS),2+ years 4G/5G delivery,experience with network protocols,Linux and scripting,excellent communication and critical thinking.
Linux, JIRA, Stash, Bamboo, Git/Gerrit, SVN
3w
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Sr. Staff SoC BSW Core Engineer
Auburn Hills, Michigan, United States
OnsiteFull Time
8+ YOEBachelor's in CS/CE/EE, 8+ years embedded SoC experience, Advanced C++ (14/17), IPC protocols (SPI, UART, VirtIO, shared memory), QNX/Linux/RTOS familiarity, board bring-up/BSP, debugging and performance optimization.
C++, SPI, UART, VirtIO, QNX, Linux, Android GVM, JTAG, Yocto, Device Tree, Python, Shell, CAN, Ethernet, LIN
1mo
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HFT C++ Core Systems Developer - 5-15 years experience
United States
OnsiteFull Time
5+ YOEExpert in modern C++ and low-latency systems, strong networking and concurrency skills, Linux development and performance tuning, experience with high-throughput trading systems (crypto or traditional finance).
C++, C++17, C++20, C++23, C++26, C, TCP, UDP, Linux
3d
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.Net Core Software Engineer 6264623
Charlotte or Irving or Morristown or New York City or United States
$40-$50/hr HybridFull Time, Contract
5+ YOEMinimum 5 years of experience, bachelor's degree, proficiency in Linux, Tomcat, Oracle, IIS, Windows, .NET, Java, J2EE, Kafka, REST/SOAP services, DevOps, and solution design.
.NET Core, Linux, Apache Tomcat, Oracle, IIS, Windows, Java, J2EE, Apache Kafka, REST, SOAP, DevOps
1mo
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ADAS Core Hardware Engineer
Dearborn, Michigan, United States
$67k-$170k/yr HybridFull Time
7+ YOELead hardware development for ADAS sensors; hardware/software integration; failure mode and functional safety analysis; supplier management; E/E design, validation and production support.
CANAlyzer, DET, DTCs, DIDs
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ADAS Core Hardware Engineer
Dearborn, Michigan, United States
$67k-$170k/yr HybridFull Time
3+ YOEBS in Electrical or Mechanical Engineering, 3+ years hardware design experience, 7+ years automotive product development experience, systems engineering and failure-analysis skills, ability to travel and lead supplier activities.
DET, CANAlyzer, DTCs, DIDs, WCCA, DFMEA, DVP&R, PPAP, 8D, Six Sigma, ECU
2w
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BrS Core Network Engineer
United States
OnsiteFull Time
10+ YOE10 years combined education/work experience; hands-on router engineering; MPLS WAN architecture; DoD 8140 IAT Level 2 compliance; TS/SCI CI clearance; experience with lab testing, security accreditation, and technical documentation.
Multiprotocol Label Switching (MPLS)
3w
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Staff CORE Systems Engineer
Baltimore, Maryland, United States
$169k-$254k/yr OnsiteFull Time
8+ YOEU.S. citizen with active Secret clearance, ability to obtain Special Program Access, advanced systems engineering experience, degree in STEM (or equivalent experience), proficiency with DOORS, CAMEO, MATLAB, and participation in major system reviews.
DOORS, CAMEO, MATLAB
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