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Senior Advanced Semiconductor Packaging Engineer - 1119
Quantinuum
US Brooklyn Park, MN · US Malta, NY
- $147,000 to $197,000 USD / year
We are seeking a Senior Advanced Semiconductor Packaging Engineer to work either at one of our Minneapolis, MN sites or at a supplier site in Malta, NY as a full-time Quantinuum employee to…
Added 2 mins ago
R&D Software Engineer – Sampling Oscilloscope Applications & DevOps
Keysight Technologies, Inc.
Santa Rosa, CA
…applications. We are seeking a highly motivated Software R&D Engineer to contribute to sampling oscilloscope application development while strengthening the build, release, and continuous…
Added 3 mins ago
Senior Civil Engineer -- Energy & Industrial Group
Sargent & Lundy
Lake Mary, FL
…earthwork, storm water management, sanitary sewage systems, process wastewater systems, and road and railroad track…
Added 3 mins ago
Mechanical Engineer Project Consultant
Sargent & Lundy
Chicago, IL
You will be responsible for leading the Mechanical Engineering design efforts for a team of junior and senior engineers and designers.
Added 3 mins ago
Mechanical Engineer - Senior-Level
Sargent & Lundy
Casper, WY
You will be responsible for leading the Mechanical Engineering design efforts for a team of junior and senior engineers and designers.
Added 3 mins ago
Senior Cyber Data Capabilities Developer
Peraton
Fort Meade, MD
Peraton seeks a Senior Cyber Data Capabilities Developer to support DCDC with developing and implementing software capabilities for big data processing and cyberspace data analysis.…
Added 3 mins ago
Principal Structural Engineer
Cornerstone Energy Services
Portland, ME · Worcester, MA · Plymouth, MA
The Senior Civil/Structural Engineer leads civil and structural design for natural gas and LNG facility projects, from conceptual studies through construction and commissioning, and owns…
Added 3 mins ago
Senior Distribution Engineer 1 - Grid
Sargent & Lundy
Charlotte, NC
Participate in Process Hazard Analysis and Design Reviews.
Added 5 mins ago
Senior Lead Design Engineer - RTL Design
Altera Corporation
San Jose, CA
Altera is seeking a Senior Lead Design Engineer - RTL Design to provide hands-on technical leadership for the RTL architecture, design, integration, and delivery of next-generation FPGA and…
Added 6 mins ago
Front End Engineer II, Amazon Connect - Contact Control Panel
Amazon Development Center U.S., Inc.
Seattle, WA
…problems. We are looking for a passionate and talented Front End Engineer to join us to innovate on this new service that addresses customer needs to build modern contact centers in the…
Added 6 mins ago
05487 - Electric Motor Design Engineer
Crafted Staff
Kalamazoo, MI
We are seeking an experienced Electric Motor Design Engineer to lead complex engineering assignments involving the electromagnetic design of AC and DC motors and the development of new or…
Added 6 mins ago
CS
05488 - Principle Engineer - Aerospace Research and Development
Crafted Staff
Kalamazoo, MI
- $130,000 to $160,000 USD / year
Principal Engineer – Aerospace Research and Development
Added 7 mins ago
Software Engineer II - AI Platforms
Mastercard
Atlanta, GA
…and observably in customer-facing products. You'll work with senior engineers, AI Engineers, Data Scientists, Product Managers, and platform teams. This role is ideal for a software…
Added 7 mins ago
Senior Software Engineer - AI Platforms
Mastercard
Atlanta, GA
Mastercard is seeking a Senior Software Engineer to design and build production-grade AI platform capabilities that enable AI-powered products and agentic experiences across B&MI.
Added 7 mins ago
Software Engineer II - AI Platforms
Mastercard
Atlanta, GA
…and observably in customer-facing products. You'll work with senior engineers, AI Engineers, Data Scientists, Product Managers, and platform teams. This role is ideal for a software…
Added 7 mins ago
Senior Automation Engineer
Novo Nordisk
Bloomington, IN
The Senior Automation Engineer (IT Automation) provides technical expertise in process automation and control systems, supporting site operations through the design, maintenance,…
Added 9 mins ago
Senior Lead Software Engineer - Java, Prime Financial Services Technology
JPMC page
Jersey City, NJ
As a Senior Lead Software Engineer at JPMorganChase within the Commercial & Investment Technology in Cash Prime Technology, you are an integral part of an agile team that works to enhance,…
Added 9 mins ago
Senior CMDB Architecture Engineer (R-19964)
Dun & Bradstreet
Jacksonville, FL
The Senior CMDB Architecture Engineer is responsible for the technical architecture, design, implementation, and ongoing health of the ServiceNow Configuration Management Database (CMDB).
Added 9 mins ago
Senior CMDB Architecture Engineer (R-19964)
Dun & Bradstreet
Center Valley, PA
The Senior CMDB Architecture Engineer is responsible for the technical architecture, design, implementation, and ongoing health of the ServiceNow Configuration Management Database (CMDB).
Added 9 mins ago
D&
Senior CMDB Architecture Engineer (R-19964)
Dun & Bradstreet
Florham Park, NJ
- $147,000 to $247,000 USD / year
The Senior CMDB Architecture Engineer is responsible for the technical architecture, design, implementation, and ongoing health of the ServiceNow Configuration Management Database (CMDB).
Added 9 mins ago
GS
Director Consulting
Geocomp Solutions Inc.
United States
- $145,000 to $165,000 USD / year
This is a high-impact, highly visible leadership role. You will serve as the Division's senior technical authority on major pursuits, provide strategic direction and mentorship to a strong…
Added 10 mins ago
Senior Specialist, Quality Engineer
L3Harris Technologies
Camden, AR
L3Harris Technologies is seeking a Senior Specialist, Quality Engineer to join our growing facility in Camden, Arkansas. This role will be responsible for the design, development and…
Added 10 mins ago
IG
Senior Power Platform Engineer (REMOTE)
Insight Global
Remote, United States
- From $76 USD / hour
…offices in the United States, Europe, and Asia is looking for a Senior Collaboration Technology Engineer to join its growing Collaboration Technology team. This is a long-term contract…
Added 13 mins ago
Quality Engineer Senior
Mayville Engineering Co. Brand
Heber Springs, AR
…customer requirements on a continuing basis. Makes suggestions for process…
Added 13 mins ago
Senior Staff Process Development Engineer
SkyWater Technology Foundry, Inc.
Bloomington, MN
We are seeking a Senior Staff Process Development Engineer to join our team, working on the fabrication and integration of quantum devices in a semiconductor foundry environment.

Roblox

Principal Software Engineer, Build Platform

San Mateo, CA, United States

$345,040 - $399,420 USD

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Job details

Pay: $345,040 - $399,420 USD
Experience: 8+ years of experience building and operating large-scale distributed systems, including technical leadership across multiple teams.
Posting language: English
Posted: Nov 4, 2026

Original job description

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.

At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.

A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.

As a Principal Software Engineer on the Build Platform team, you will set the technical direction for the infrastructure behind AI-powered creation on Roblox. Build lets anyone make a game by describing it, on mobile and in Studio. Our team owns the platform underneath: the cloud-hosted agent harness, tools and skills, and evaluation framework. You'll be the senior technical leader shaping its architecture.

This role spans the full agent stack: orchestrating long-running, multi-step workflows; model integration and routing across providers; tool and skill execution; sandboxed game environments; evals at scale; and the reliability, safety, and cost systems that let us grow to millions of creators.

You Have:

8+ years of experience building and operating large-scale distributed systems, including technical leadership across multiple teams.
Deep experience designing backend platforms used by other engineering teams.
Hands-on experience with production AI/ML systems, such as model serving, orchestration, LLM integration, or agentic execution loops (planning, tool use, recovery, long-running workflows).
A strong understanding of tool and skill design and structured evaluation for AI systems.
The judgment to weigh tradeoffs and make pragmatic calls under ambiguity.
A BS in Computer Science or a related field, or equivalent professional experience.

You Are:

Excited to define how AI agents create at scale, and to stay hands-on while doing it.
A clear communicator who can explain complex technical direction to engineers, product, and leadership.
Experienced with workflow engines (e.g., Temporal), multi-provider model routing, or AI cost management (bonus).

You Will:

Own the technical architecture and long-term roadmap for the Build agent platform.
Design for reliability, safety, observability, and cost efficiency in production AI workloads, including usage metering and model-routing strategy.
Define how we measure agent quality and build the evaluation infrastructure that drives model, prompt, and skill decisions.
Partner with Build product teams, ML infrastructure, and Safety to ship new capabilities quickly and safely.
Raise the engineering bar through design reviews, mentorship, and hands-on technical leadership.

For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.

Annual Salary Range

$345,040 - $399,420 USD

Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).

Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.

For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.

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Skills

Leadership
ML
Computer science
Workflow
Cost management

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