Jobs in the United States

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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 6 mins ago
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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
O
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 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 26 mins ago
DO
Principal Transportation Engineer
Department of Transportation
CA
- $15,263 to $17,336 USD / month
Possession of a valid certificate of registration as a civil, electrical, or mechanical engineer issued by the California State Board of Registration for Professional Engineers. and
Added 32 mins ago
Electrical Principal
HDR
Jacksonville, FL · Doral, FL · Orlando, FL · Tampa, FL
…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. From high-performance…
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
Sentinel - Principal/Sr. Principal Technical Services Engineer - 18369
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Principal / Sr. Principal Technical Services Engineer to join its team. This position is in Roy, Utah and will support the Sentinel program.…
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 44 mins ago
Principal Software Engineer
Mirantis
Remote, United States
As Principal Software Engineer, you are the senior technical voice for Enterprise AI. You own its architecture together with the teams that share the platform, and set the technical bar for…
Added 47 mins ago
Principal Attack Engineer, AI/LLM
Horizon3
Remote, United States
- Set technical direction for assessing AI infrastructure, including model serving, training pipelines, vector databases, GPU/MLOps tooling, and enterprise deployment architectures.
Added 50 mins ago
Principal Electrical Engineer
Iron Mountain Data Centers, LLC
VA
Iron Mountain Data Centers is seeking an accomplished Principal Electrical Engineer to serve as the global technical authority for utility, high-, medium-, and low-voltage distribution,…
Added 1 hour ago
Principal CI/CD Engineer
MIPS Holding Inc
United States
GlobalFoundries is seeking a highly experienced Senior/Principal Continuous Integration and Continuous Delivery (CI/CD) Engineer to lead the strategy, design, implementation, and evolution…
Added 1 hour ago
Principal Software Engineer, DevSecOps (Hybrid)
RTX
United States
This is the PERFECT position for a Principal level Software Engineer with a strong background in embedded Software Engineering, has a passion for DevSecOps, and wants to work on pipeline…
Added 1 hour ago
Staff Level Security Engineer/Okta/AWS/Risk
Kelly Services
Remote, United States
We are seeking a Staff Security Engineer to join an innovative, technology-driven company fully remote, on a full-time basis. This is a high-impact opportunity to help shape and scale the…
Added 1 hour ago
C
Principal Cloud Network Engineer (Hybrid)
Citizens
Pittsburgh, PA
- $123,200 to $184,800 USD / year
We are seeking an experienced Principal Cloud Network Engineer to join our team and play a key role in the design, deployment, and management of secure, standardized, and automated…
Added 1 hour ago
S&
Principal Product Security Engineer
Smith & Nephew, Inc.
Pittsburgh, PA
- $125,500 to $198,000 USD / year
Added 1 hour ago
S&
Principal Product Security Engineer
Smith & Nephew, Inc.
Pittsburgh, PA
- $125,500 to $198,000 USD / year
Added 1 hour ago
C
Sr Data Engineer 1
ComEd
OAKBROOK TERRACE, IL
- $104,800 USD / year
…solutions, products, and processes under the guidance of a Principal Data Engineer or Manager. May coordinate tasks for other team…
Added 1 hour ago
Principal Front-End Network Engineer
Nscale
United States
We’re looking for a Senior Principal Front End Network Engineer – AI Infrastructure to provide technical leadership across Nscale’s front-end networking domain.
Added 1 hour ago
Principal Enterprise Software Engineer
Wolters Kluwer United States Inc.
Kennesaw, GA · Houston, TX · Minneapolis, MN
Wolters Kluwer is seeking a hands-on Principal AI Solutions Engineer in our Architecture & Engineering Services (AES) Team to architect, build, and deploy enterprise-scale AI solutions on…
Added 1 hour ago
Director, Supply Chain
Worley
Buenos Aires Province, AR
Added 1 hour ago
CI
Principal Software Engineer, CBCI
CloudBees Inc
Denver, CO
- $200,000 to $230,000 USD / year
We are looking for a Principal Software Engineer to set technical direction for the CloudBees CI product area and turn that direction into working software. You will lead architecture and…
Added 2 hours ago
Senior Systems Administrator
Koniag Government Services
Fort Belvoir, VA
The Systems Admin will provide senior technical leadership for secure enterprise systems administration, virtual infrastructure, identity management, storage, and hosted mission…

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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