Skip to content
Search jobs inside your AI agent. Claude, ChatGPT, Claude Code, Codex, Gemini, Cursor and Grok
Connect

Tech jobs

Job listings

3.8K jobs
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
55 views 13 hours ago

Principal Software Engineer, Creator Game Operations

Open 35d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Roblox is hiring a Principal Software Engineer on the Creator Success Team to build mission-critical backend services supporting game creators, including ML-driven player insights pipelines, creator communication tools, and a remote config/experimentation platform. The role involves leading technical decisions at massive scale using C#, Java, or Go and distributed systems, based onsite in San Mate

Android C# Data Pipelines Distributed Systems iOS +5 skills
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
46 views 13 hours ago

Principal Software Engineer, Ads User Experience

Open 33d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal software engineer building Roblox's first-of-its-kind ads system inside its C++ game engine — developing new ad formats starting with video, and designing high-performance, scalable systems that shape a new multi-billion-dollar ads business while preserving user experience and platform integrity.

Analytics C++ Data Science
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
45 views 13 hours ago

Principal Software Engineer - Avatar Personalization

Open 17d North AmericaFull-timePrincipal Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Avatar Personalization team, building avatar creation and customization features (animation, clothing, hair, shading) directly in the Roblox game engine using C++ and Lua, with technical leadership and cross-team architectural work at scale for tens of millions of users. Onsite in San Mateo Tue-Thu.

API C++ Lua Networking
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
48 views 13 hours ago

Principal Software Engineer, Build

Open 33d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Build Surfaces team, leading end-to-end development of AI-assisted creator tools across Roblox Studio and the app — text-to-game generation, iteration, monetization, and analytics — while mentoring engineers. Primarily works in React, Luau, and occasionally C++.

A/B Testing Agentic AI AI Analytics C++ +3 skills
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
45 views 13 hours ago

Principal Software Engineer - Object Store

Open 37d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer setting the technical direction for Roblox's in-house, bare-metal, S3-compatible object storage platform that serves assets, media, analytics and ML datasets at exabyte scale, migrating workloads off cloud object storage. Day to day: distributed storage architecture and data-path tuning in C++, Go, or Rust, control-plane and fleet operations, plus mentoring.

Analytics API Automation CI/CD Cloud +5 skills
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
43 views 13 hours ago

Principal Software Engineer, App Performance

Open 28d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Consumer App Performance team, driving stability and performance across the cross-platform C++ game engine and client codebase on mobile, desktop, and console — profiling bottlenecks, mitigating crashes and hangs, and building monitoring and CI/CD guardrails to prevent regressions.

API Automation CI/CD C++ Lua
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
55 views 13 hours ago

Principal Software Engineer, Engine Systems

Open 33d HybridNorth AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Engine DataModel team, owning the core data structures, C++ reflection bindings behind the Luau API, and serialization that form the backbone of the Roblox engine. Day to day is high-performance systems-level C++ work that must run well across desktop, mobile, and console clients, based hybrid (3 days/week) in San Mateo, CA.

API Backbone.js C++
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
48 views 13 hours ago

Principal Software Engineer, Core Services

Open 34d North AmericaContractPrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Core Services team, building and evolving the shared C#/.NET and Rust frameworks, libraries, and runtime infrastructure behind Roblox's global platform. Day-to-day is hands-on systems work across performance, concurrency, API design, and managed/native interop, plus technical leadership and mentoring.

AI API Api Design Automation C# +7 skills
345K – 399K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
51 views 13 hours ago

Principal Software Engineer - Streaming

Open 27d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Engine Networking team, building the real-time network transport layer that synchronizes game state across millions of players on desktop, mobile, and console clients. Core work is systems-level C++ on a user-space network stack, optimizing latency, throughput, congestion control, and OS-level performance on Linux.

C++ Linux Networking QoS
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
50 views 13 hours ago

Principal Software Engineer - Service Networking

Open 26d North AmericaFull-timePrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Service Mesh team: sets technical direction and does hands-on development of Envoy/Istio-based service-to-service networking across Kubernetes, Nomad, and cloud environments, partnering with Security and Compute teams while mentoring senior engineers.

Automation Cloud C++ Distributed Systems Envoy +6 skills
295K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
63 views 13 hours ago

Principal Software Engineer, Agent Infrastructure

Open 20d North AmericaFull-timePrincipal Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Agent Infra team, building the backend infrastructure that runs autonomous AI agents safely and reliably at scale for creators and internal engineers. Core work spans distributed systems design, workflow orchestration, sandboxing untrusted code, and production code in Go, Python, or Rust.

Agentic AI AI Argo CD AWS GitOps +5 skills
279K – 345K $
 Sign in to see your match
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
66 views 13 hours ago

Principal Software Engineer

New HybridNorth AmericaFull-timePrincipal Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer on Roblox's Observability team, owning telemetry, distributed tracing, and logging infrastructure end-to-end — instrumentation libraries, pipelines, storage, and visualization UI — while architecting the next-gen platform ingesting petabytes of data daily and building novel monitoring for AI/ML systems. Hybrid role: 3 days/week at San Mateo HQ.

AI Distributed Systems Machine Learning Observability
295K – 345K $
 Sign in to see your match
BairesDev
13 hours ago

Principal Software Engineer (Python) - Remote Work | REF#306350

New RemoteLATAMPrincipal
Peru

Remote principal-level Python engineer at BairesDev who sets long-term technical strategy, makes high-impact architectural decisions, and mentors senior engineers. Requires 8+ years of Python, distributed systems, and large-scale design experience, plus advanced English.

Distributed Systems Python
Sign in to see your match
Trinzic
14 hours ago

Principal Modeling & Simulation Software Engineer with Security Clearance

New North AmericaPrincipal
United States
Reston, Fairfax County

Title: Principal Modeling & Simulation Software Engineer At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide…
Innova Solutions, Inc.
14 hours ago

Senior Principal Systems Engineer with Security Clearance

New ContractPrincipal Woburn, Middlesex County

A client of Innova Solutions is immediately hiring for a Senior Principal Systems Engineer. Position Type: Contract Duration: 12 months contract Location: Woburn, MA (Onsite) As a Senior Principal Systems Engineer, you…
JBT Marel Corporation
14 hours ago

Principal Real-Time Robotics Software Engineer

New APACPrincipal
Australia
Marbelup, Albany Area

Principal engineer at JBT Marel architecting and building real-time C/C++ control software for robotic water-jet cutting and computer-vision food-processing platforms on x86 embedded hardware, while mentoring juniors and collaborating cross-functionally in an agile team.

Agile Computer Vision C++
Sign in to see your match
JBT Marel
14 hours ago

Principal Software Engineer

New APACPrincipal
Australia
Marbelup, Albany Area

Principal Software Engineer at JBT Marel, a global food and beverage technology company, based onsite in the Albany area of Western Australia. The posting emphasizes the company's mission to transform the future of food; detailed duties and tech stack are not listed.
Roblox Backed by a16zBacked by GreylockBacked by Index Ventures
22 views 15 hours ago

Principal Software Engineer, GPU Compute

Open 143d North AmericaFull-timePrincipal Salary + equity 5 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
United States
San Mateo, CA

Principal engineer leading GPU compute infrastructure at Roblox, owning GPU host lifecycle, driver/firmware stacks, reliability, and Kubernetes integration for AI workloads.

AI API Bootstrap Cloud CUDA +6 skills
345K – 399K $
 Sign in to see your match
BairesDev
15 hours ago

Principal Software Engineer (Python + AWS) - Remote Work | REF#306684

New RemoteLATAMPrincipal

Principal-level remote engineer at BairesDev providing senior technical direction for partner-facing APIs and SaaS/API-as-a-Service products. Stays hands-on designing and building APIs and data products with Python and AWS, applying serverless and DevOps practices while mentoring engineers and guiding architecture across teams.

API Authentication AWS Azure Cloud +8 skills
 Sign in to see your match
Zscaler
16 hours ago

Principal Software Development Engineer

New HybridNorth AmericaFull-timePrincipal Salary + equity 11 questions
United States
San Jose, California

Zscaler (NASDAQ: ZS) accelerates digital transformation so customers can be more agile, efficient, resilient, and secure. The Zscaler Zero Trust Exchange platform protects thousands of customers from cyberattacks and…

Agile AI Cloud Cloud Security Sase +2 skills
 Sign in to see your match