Jobs in the United States

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Added 2 mins ago
Principal Engineer - Process Program Lead
Mars Wrigley Conf. (MCNA)
United States
The Principal Engineer – Process Program Lead is a widely recognized business leader and highly experienced technology expert within our North American Engineering Organization. This…
Added 3 mins ago
Forward Deployed Engineer, Applied AI
Snowplow
Remote, United States
You are the first Forward Deployed Engineer on the team, reporting to the Senior Director of Applied AI. The team is also hiring a principal engineer to own the platform and an Applied AI…
Added 4 mins ago
Principal Software Engineer - Mobile Applications
Boston Scientific
San Jose, CA
The Principal Software Engineer – Mobile Applications will serve as a hands-on technical leader responsible for the architecture, design, development, integration, and delivery of Android…
Added 5 mins ago
CADD Technician II
Highlands County Board of County Commissioners
Sebring, FL
A skilled position providing technical support utilizing computer-aided drafting and design (CADD) equipment and processes in all areas of civil engineering and surveying responsibilities…
Added 6 mins ago
O
Principal Software Engineer, AI Core Infrastructure at OCI
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
We are looking for a Principal Software Engineer to lead the design and delivery of software platforms for AI infrastructure. You will translate ambiguous problems into clear technical…
Added 6 mins ago
Principal Electrical Engineer
Oracle
Burlington, MA
We are seeking a Principal Electrical Engineer – Server Hardware Validation to join our OCI Hardware Engineering team On-Site in Burlington, Massachusetts. This is a hands-on technical role…
Added 6 mins ago
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Principal Core Infrastructure Engineer
Oracle
United States
- $114,600 to $234,600 USD / year
As a Senior Core Infrastructure Engineer, you will play a critical role in the pre-sales, designing, implementing, and maintaining the infrastructure that supports our customers AI and…
Added 6 mins ago
Principal Quality Engineer/Sr. Principal Quality Engineer 3/4
Northrop Grumman
Apopka, FL
Northrop Grumman Mission Systems (NGMS) is looking for a Principal Quality Engineer / Sr. Principal Quality Engineer to support the Quality and Mission Assurance team located in Apopka, FL…
Added 7 mins ago
Principal/Senior Principal Engineer Electronics - Avionics Radar (Melbourne FL)
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems has an opening for Principal/Senior Principal Engineer Electronics - Avionics Radar to join the team of qualified individuals in our Avionics…
Added 7 mins ago
Engineer or Principal Engineer - Fluid Subsystems Design
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems has an opening for an Aeronautical Engineer, specializing in Fluid Subsystems design . This role will be located in Melbourne, FL .
Added 7 mins ago
Principal or Sr. Principal Engineer Aeronautical - Crew and Equipment Design
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems sector is looking for a Principal Crew and Equipment Design Engineer / Sr. Principal Crew and Equipment Design Engineer with experience in Design and…
Added 12 mins ago
Principal Mechanical Engineer, Fuel Handling Equipment
Kairos Power
Oakridge, TN
Kairos Power is seeking a highly motivated Principal Fuel Handling Equipment Testing Engineer with technical expertise relevant to design, development, testing and manufacturing of…
Added 21 mins ago
Product Development Engineer I
Fresenius Medical Care
Ogden, UT
The entry level Engineer will participate in designing, executing, and championing research and development activities of Fresenius' products. As a member of a tech team, the Engineer I…
Added 23 mins ago
Principal/Senior Software Engineer - Mobile App Monetization (Ad Server)
PubMatic
Redwood City, CA
The ideal candidate is a seasoned backend engineer with strong ad-tech domain expertise and experience building real-time auction, targeting, decisioning, and optimization systems. You will…
Added 25 mins ago
Test Engineer - Prin
BAE Systems
Nashua, NH
Are you an experienced Electrical, Software or Test Design Engineer with 6+ years of experience looking for the next step to grow your career? Do you want to design and develop test…
Added 26 mins ago
Sr. Principal Software Engineer (Remote)
The Home Depot
Remote, United States
Position Purpose:The Software Engineer Sr. Principal is responsible for guiding software design and development across multiple engineering teams and principal software engineers. Sr.…
Added 32 mins ago
Electrical Principal
HDR
Jacksonville, FL · Doral, FL · Orlando, FL · Tampa, FL
…part of HDR’s Building Engineering Services Group, you’ll help design the critical infrastructure that supports the digital age and shapes the spaces where people work, connect, and thrive.…
Added 33 mins ago
PF
Technical Engineer Internship - Des Moines, IA (Summer 2027)
Principal Financial Group
Des Moines, IA
- $28 to $30 USD / hour
…an excellent opportunity to understand and learn more about Principal’s Technology Engineering…
Added 36 mins ago
A
Principal Embedded Software Engineer
Actalent
Dallas, TX
- $70 to $85 USD / hour
Job Title: Principal Embedded Software EngineerJob DescriptionThe Principal Embedded Software Engineer designs, develops, and integrates embedded software for advanced vehicle control…
Added 38 mins ago
Principal Software Engineer
Robert Half
Edison, NJ
Description We are looking for a Principal Software Engineer to join our team in Edison, New Jersey. In this role, you will be responsible for shaping the technical direction of our…
Added 38 mins ago
IT Engineer Principal I -Data & Analytics
PSEG
Newark, NJ
The IT Engineer Principal I – Data & Analytics plays a key role in delivering and maintaining the data assets required for enterprise reporting, analytics, automation, and AI initiatives.…
Added 38 mins ago
Sr Principal Engineer Electronics
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Senior Principal Electronics Engineer (Level 4) to join the team of qualified individuals. Position is located in Oklahoma City, OK.
Added 38 mins ago
Principal or Sr Principal Electronics Engineer
CORP-Corporate Office
United States
The Principal or Senior Principal Electronics Engineer demands a combination of hardware and software expertise, practical experience with DC, analog, digital, or RF test and measurement…
Added 38 mins ago
Sentinel - Principal Systems Safety Engineer - 17339 - 17585
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking to hire a Principal Systems Safety Engineer to join its team of diverse and qualified individuals. This position will be located in Roy, Utah or…
Added 38 mins ago
Sentinel - Systems / Principal Systems Safety Engineer - 17900*
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Systems Safety Engineer / Principal Systems Safety Engineer. This position is located in Roy, UT or Huntsville, Alabama and supports the…

Robert Half

Principal Software Engineer

Knoxville, TN, United States

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Job details

Experience: At least 8 years of experience delivering software solutions in production environments.
Posting language: English
Posted: Sep 28, 2026

Original job description

Description

Robert Half is hiring! We are looking for a Principal Software Engineer to lead the design and delivery of modern AI-driven software solutions. This role combines hands-on engineering with technical leadership across backend services, frontend applications, and intelligent workflow development. The ideal candidate brings deep full-stack expertise, a strong product mindset, and the ability to guide scalable systems from concept through production.

Responsibilities:

Lead complete product delivery efforts, from technical planning and architecture through implementation, testing, and long-term support.
Create and refine agentic AI workflows that support business goals and integrate effectively with broader application ecosystems.
Build, enhance, and support scalable server-side applications using Python frameworks such as Django, Flask, or FastAPI, or Node.js frameworks including Express or NestJS.
Develop robust RESTful and GraphQL interfaces that enable reliable communication between platforms, services, and user-facing applications.
Implement and improve React-based frontend features with a focus on usability, responsiveness, and smooth integration with backend systems.
Architect and maintain microservices and distributed application components to support performance, resilience, and future growth.
Improve system efficiency by tuning application behavior, streamlining database interactions, and optimizing cloud infrastructure usage.
Apply strong security standards by implementing access controls, authentication mechanisms, and authorization practices across the platform.
Oversee automated delivery processes and container-based deployments using CI/CD pipelines, Docker, and related engineering tools.
Partner with product, design, and DevOps teams to resolve production issues, maintain cloud-based services, and deliver high-quality software outcomes.

Requirements

At least 8 years of experience delivering software solutions in production environments.
Strong development expertise in Python or Node.js, with the ability to build maintainable and scalable applications.
Proven experience creating frontend applications with React in a full-stack development setting.
Hands-on knowledge of relational databases such as PostgreSQL or MySQL and/or NoSQL platforms such as MongoDB or DynamoDB.
Solid understanding of API design principles, including RESTful services, and experience with asynchronous programming concepts.
Proficiency with Git and team-based development practices in collaborative engineering environments.
Strong analytical thinking and problem-solving skills, with the ability to balance multiple priorities effectively.
Commitment to producing clear, maintainable, and well-documented code while working effectively with cross-functional teams.

Technology Doesn't Change the World, People Do.®

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more.

All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) .

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More about this job

Skills

Workflow
Python
Django
Flask
Node.js
GraphQL
Communication skills
Microservices
Security regulations
CI/CD
Docker
DevOps
Full-stack development
PostgreSQL
MySQL
NoSQL
MongoDB
Amazon DynamoDB
API development
Git
Analytical skills
Problem solving
Customer service

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