Jobs in the United States

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Added 5 mins ago
Lead Test Engineer
LEIDOS, INC.
Eagan, MN
Leidos is seeking a Test Engineer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation Platform (L-CAP). L-CAP is a…
Added 5 mins ago
Data Engineer
LEIDOS, INC.
Remote, United States
The Homeland Sector at Leidos currently has an opening for a Data Engineer with a strong background in data analytics to support an exciting DHS software development program. The Data…
Added 5 mins ago
Data Engineer
LEIDOS, INC.
Remote, United States
Leidos is seeking a Data Engineer to support the Department of Veterans Affairs (VA) Summit Advanced Tooling, Lakehouse, and Artificial Intelligence Services (ATLAS) program. The engineer…
Added 5 mins ago
Senior Systems Engineer - Deputy Project Manager
LEIDOS, INC.
San Diego, CA
The Undersea Systems Division at Leidos currently has an opening for a Senior Systems Engineer - Deputy Project Manager to support a customer site in San Diego, California. This is an…
Added 5 mins ago
Senior Systems Engineer – Technical Program Lead
LEIDOS, INC.
San Diego, CA
The Undersea Systems Division at Leidos currently has an opening for a Senior Systems Engineer/Technical Program Lead to support a customer site in San Diego, California. This is an…
Added 8 mins ago
Senior Embedded Software Engineer - Platform Software
Intuitive
Sunnyvale, CA
Architect and lead the development of automated test frameworks for board validation and regression testing – establishing scalable infrastructure usable across multiple platform variants.
Added 10 mins ago
AA
Field Service Engineer
ATS Automation
Stone Ridge, NY
- $45 to $51 USD / hour
SP Industries Inc. an ATS company, has an exciting opportunity for a Field Service Engineer based in California to support customers across the West Coast and other locations as needed.…
Added 10 mins ago
SO
Data Analytics and Systems Engineer (Systems Engineer II) - 61167545
State of South Carolina
West Columbia, SC
- $67,728 to $121,890 USD / year
The work spans data analysis and systems development. You’ll query and transform data, investigate discrepancies, translate business requirements into technical solutions, and build tools…
Added 11 mins ago
Systems Integration Engineer
ENSCO, Inc.
El Segundo, CA
…engineering involving sub-disciplines such as requirements management and technical baseline development; test planning, integration, and execution; verification; and…
Added 11 mins ago
Senior Systems Engineer
ENSCO, Inc.
El Segundo, CA
We are seeking a Senior Systems Engineer to work directly with Government mission leaders and independently governed program teams delivering elements of a critical space mission…
Added 12 mins ago
Systems Engineer (Entry Level)
Technology for Energy Corporation
Knoxville, TN
Position Summary: Technology for Energy Corporation (TEC) is seeking a motivated and technically curious Entry-Level Systems Engineer to support the design, development, integration,…
Added 12 mins ago
Senior Python Engineer – Space Modeling and Simulation
The MITRE Corporation
Bedford, MA · Colorado Springs, CO · McLean, VA
We are seeking an experienced, highly motivated Space Modeling and Simulation Python Engineer to support critical national security missions, such as homeland defense, Space Domain…
Added 14 mins ago
Agentic AI - PhD Intern (Modeling Agent)
Keysight Technologies, Inc.
Calabasas, CA · Santa Rosa, CA
Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization.…
Added 16 mins ago
AB
Systems Engineer - HPC and GPU Infrastructure
Absolute Business Solutions Corp
Bethesda, MD
- $90,000 to $170,000 USD / year
ABSC has an exciting opening for a TS/SCI-cleared Systems Engineer specializing in high-performance computing and GPU infrastructure supporting DIA-NDOC under the DTP contract. You will…
Added 17 mins ago
Test Engineer TS SCI
Northrop Grumman
Stafford, VA
Northrop Grumman, Defense Systems, is seeking an Associate Test Engineer to work on the Whisper program in Stafford, Virginia. The Whisper program is a large Antenna based RF Transmission…
Added 17 mins ago
Staff Principal Systems Engineer 5
Northrop Grumman
Charlottesville, VA
Perform requirements development, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems
Added 17 mins ago
Senior Specialist, Technical Trainer/ Mission Operations Trainer
L3Harris
Chantilly, VA
Job Title: Senior Specialist, Integration & Test Engineer
Added 18 mins ago
Marine Engineer (Auxiliary & Fluid Systems) - Arlington, VA
Serco
Norfolk, VA · Arlington, VA · Newport News, VA · Alexandria, VA · Herndon, VA
The Maritime Engineering Operation (MEO) of Serco North America is seeking a motivated and experienced Marine Engineer to join our team working in our Arlington, VA location. MEO supports…
Added 18 mins ago
Integration Engineer 4 (MAC)
Capital One
McLean, VA · Richmond, VA
Capital One is looking for a Lead Integration Engineer to join our growing Mac Engineering team. The platform has grown to support over 40,000 endpoints in recent years, as one of the…
Added 18 mins ago
Global Red Team Senior AI Engineer, Vice President
MUFG Bank, Ltd.
Jersey City, NJ · Tempe, AZ
Integrate AI red team findings into enterprise risk, validation, remediation, and re-test workflows.
Added 18 mins ago
EG
QA Automation Engineer
Eliassen Group
Richmond, VA
- $75 to $82 USD / hour
Develop, document, and maintain functional test cases and test artifacts such as test data, data validation, and automated scripts.
Added 20 mins ago
Senior Closures Systems Sealing Engineer
Ford Global
Long Beach, CA
Plan and run sealing validation, including water leak/shower testing, wind noise evaluation, door closing effort and velocity measurement, and environmental durability (heat aging,…
Added 21 mins ago
RH
Software Engineer
Robert Half
Orlando, FL
- $80 to $85 USD / hour
We are looking for a Software Engineer to join the client’s engineering team within Workforce Technology. This role will play a key role in designing, building, and supporting the…
Added 23 mins ago
HB
Front End Software Engineer
HIGH BRIDGE CONSULTING LLC
Vienna, VA
- $100,000 to $140,000 USD / year
They are now looking to add to their team and are looking to hire a "Software Engineer / Technical Delivery Lead”. This role will be based out of Tysons, VA, and is Hybrid
Added 24 mins ago
Mechanical Product Design Engineer I
Detroit Diesel Corporation
Detroit, MI
…team is part of a larger department focused on conventional and future propulsion technologies. This includes transmission, axle, fluids and electronic component research and development.…

Paychex

Software Engineer II (.Net Developer)

Chicago, IL, United States
Irving, TX, United States
Tempe, AZ, United States
Cincinnati, OH, United States
Salt Lake City, UT, United States
Rochester, NY, United States
Saint Petersburg, FL, United States

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Job details

Apply by: Nov 6, 2027
Posting language: English
Posted: Nov 6, 2026

Original job description

Paychex is reimagining how businesses manage their workforce by bringing payroll, HR, benefits, and advisory services together into a single connected HCM platform. As Paychex and Paycor come together, we're combining innovative technology, data-driven insights, AI, and human expertise to help organizations work smarter, support their people, and achieve better business outcomes. This is an exciting time to join our team as we continue to invest in innovation, simplify client experiences, and shape the future of work. At Paychex, you'll have the opportunity to grow your career, make a meaningful impact, and be part of something bigger as One Paychex.

Overview

As a Software Engineer II you are critical to the team's success and delivery of MVI's. Your primary role includes system analysis, coding, testing, debugging, documenting, and installing portions of new systems and modifying existing systems. To be successful in this role you need expertise in application and database design, as well as software implementation and graphical user interface design. Like the industry, we move fast. We need you to stay fresh with new technology, software and architecture so that you can innovate daily. As a Software Engineer II everyday will bring new technology challenges. Keep in mind that as an Agile team member you may be asked to step beyond coding and do whatever is necessary to help your team deliver in a sprint.

Responsibilities

Develop new applications, modify and maintain existing software, working closely with end-users, IT peers and management.
Make changes to prevent recurrence, modifying existing code and faulty files, writing and running special programs.
Participate in estimations, planning of feature releases, be involved in system feasibility check activities and developing design documentation.
Implement complex APIs using appropriate algorithms and data structures.
Extend features to existing software applications.
Analyze, design and develop complex business logic.
Develop UI components using JavaScript frameworks and optimize DOM rendering.
Participate in design and implementation of Database architecture.
Work together with peers, managers and quality assurance team to build a complete shippable product within the Agile methodology framework and track and report progress of deliverables.
Document the new applications, or the changes made to existing applications.
Participate in unit, integration, and business acceptance testing of the applications.
Develop automation for unit test cases for features.
Stimulate system load testing to identify performance issues, assess risk and highlight in a timely manner.
Fix defects identified during integration and user acceptance testing and complete defect root cause analysis.
Analyze production incidents and provide quick work around until it is fixed in future releases as well as troubleshoot application and system issues when required.
Monitoring event and exception logs for application to identify system issues and report and track any identified bugs.
Data validation & patching using SQL data query language.
Do whatever is necessary to get to your team's definition of done.
Stay current on emerging technologies.

Qualifications

in Bachelor's in computer science, computer engineering or related field. - Preferred
2 years of experience in a related area.
2 years of experience in at least one of these frameworks: C#, SQL, ASP.Net, PowerBuilder, HTML 5.0, CSS, or JavaScript Frameworks.
2 years of experience in front-end frameworks such as: MVC, Ember, Web Forms, Angular, KnockoutJS or Node.
Js.
2 years of experience in middleware pattern such as: REST, Class Libraries as a Layer, WCF or SOAP Web Services.
2 years of experience in data storage technology such as: Microsoft Entity Framework accessing the data, Relational Databases (SQL, Oracle, MySQL, etc.), or NoSQL Technologies (Hadoop, Mongo, etc.).
Ability to combine and integrate the above-mentioned elements as an effective full stack software developer.
Understanding of unit testing concepts and frameworks preferred.
Ability to be self-directed.
Familiar with an Agile environment.
Participation and familiarity with open source projects is a plus.

Live the Paychex Values

Act with uncompromising integrity.
Provide outstanding service and build trusted relationships.
Drive innovation in our products and services and continually improve our processes.
Work in partnership and support each other.
Be personally accountable and deliver on commitments.
Treat each other with respect and dignity.

What's in it for you?

We value your well-being: We provide over 21 comprehensive rewards, including medical coverage, virtual wellness classes, tuition reimbursement, 401(k) + employer match, adoption assistance, financial assistance, and much more.
We value your time: From paid time off to company holidays, culture days, and comprehensive work-life balance programs, we will ensure you have the flexibility you need to be your best.
We value your development: Our award-winning training and development programs empower our employees with ongoing learning opportunities to give you the building blocks to grow your career.
We value your perspective: Our company culture reflects the diversity of our employees. We want you to be you and your voice to be heard.
We value our communities: We offer paid time off for volunteerism and promote many company-wide and local initiatives that benefit organizations you care about.

Note: The benefits described apply to full-time employees. Benefits for part-time, contract, and intern roles may vary. Not sure if you meet every requirement?

At Paychex, we know that great talent comes in many forms. If you're passionate about the role but don't check every box, we still encourage you to apply. You might be the right fit - either for this position or another opportunity with us.

Paychex is an equal opportunity employer. We are committed to fostering a respectful and inclusive workplace where all individuals are treated fairly and evaluated based on their qualifications, experience, and merit. We comply with all applicable federal, state, and local laws prohibiting discrimination in employment.

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