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Jobs at Reflection
43 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
21–40 of 43 jobs
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffData & AIDesign and operate large-scale multilingual data pipelines — sourcing, cleaning, deduplication, language identification, and script normalization across high- and low resource languages.; Define and enforce quality bars for multilingual corpora, including translation quality,…
Sovereign Deal Lead
2 months agoReflection · San Francisco, California, United States +1
On-siteFull-timeLead / staffReflection partners with governments, sovereign-backed enterprises, and major conglomerates to build region-scale AI infrastructure and inference businesses—deals worth nine to ten figures that have no template. For many of these organizations, AI is not simply a technology…
Member of Technical Staff, Data Flywheel
2 months agoReflection · New York, United States +2
On-siteFull-timeLead / staffData & AIThe Data Flywheel team closes the gap between benchmark performance and useful performance in the real world. We identify and build the signals, data, and feedback loops that turn model usage into rigorous evaluations, targeted training data, and measurable improvements in…
Member of Technical Staff - Post-Training
2 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchBuild systems that transform powerful pre-trained models into aligned and general agents.; Drive research and engineering initiatives that push the frontier of post-training, from data curation to large-scale optimization.; Develop data generation pipelines, reward models,…
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffEngineeringReflection's Shared Services team builds and operates the shared services that power our research, training, and production environments the systems multiple teams depend on for model development, deployment, and evaluation. Sharding, replication, coordination, high-concurrency…
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffEngineeringReflection's Platform Foundations team builds and operates the foundational layer every engineering team depends on — cloud and multi-cloud infrastructure, networking primitives, security guardrails, and developer tooling. The team defines the opinionated golden paths that make…
MTS Lead, Identity and Access Management
3 months agoReflection · New York, United States +1
On-siteFull-timeLead / staffSecurityThe Head of Identity and Access Management is responsible for architecting, building, and operating Reflection’s identity infrastructure — the foundational security layer in an environment where the perimeter is entirely identity-based and the threat model includes…
MTS Lead, Technology & Security Engineering
3 months agoReflection · New York, United States +1
On-siteFull-timeLead / staffSecurityAs the MTS Lead of Technology & Security Engineering is responsible for architecting and operating the security engineering foundation that protects the organization’s corporate environment, multi-cloud research infrastructure, and multi-million-dollar GPU training capacity.…
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffData & AIData is playing an increasingly crucial role at the frontier of AI innovation. Many of the most meaningful advances in recent years have come not from new architectures, but from better data.
Member of Technical Staff, Web Crawl Engineer
4 months agoReflection · San Francisco, California, United States
On-siteFull-timeLead / staffEngineeringThe web is one of the most important sources of information for frontier AI systems. The quality, coverage, freshness, and diversity of web data directly influence model capabilities.
Controller
5 months agoReflection · New York, United States +1
On-siteFull-timeSeniorFinanceAs Controller, you’ll build the accounting function from the ground up. You own the close, technical accounting, financial reporting, and the internal controls that make all of it trustworthy. You’ll navigate complex deal structures across sovereign and enterprise contracts,…
Research Program Manager - Model Development
6 months agoReflection · New York, United States +2
On-siteFull-timeSeniorScience & researchResearch Program Managers at Reflection are high-leverage leaders and operators who embed directly with research and engineering teams to accelerate the pace of frontier model development. They are not project trackers. They are force multipliers who bring clarity to ambiguity,…
Reflection · New York, United States +2
On-siteFull-timeSeniorEngineeringResearch Program Managers at Reflection are high-leverage leaders and operators who embed directly with research and infrastructure teams to accelerate the pace of frontier model development. They are not project trackers. They are force multipliers who bring clarity to…
Member of Technical Staff - Pre-Training Infra
7 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchBuild and scale distributed training systems that power frontier model pre-training.; Work closely with research teams to design and operate large-scale training runs for foundation models.; Develop infrastructure that enables efficient training across thousands of GPUs using…
Member of Technical Staff - Compute Platform
7 months agoReflection · New York, United States +2
On-siteFull-timeLead / staffEngineeringReflection’s Compute Platform team specializes in keeping our compute layer healthy and highly available. We run a K8s-based platform distributed across multiple neo-clouds. We manage multi-cloud scheduling, node health, and performance debugging at this scale presents…
Member of Technical Staff - Applications
7 months agoReflection · New York, United States +2
On-siteFull-timeLead / staffEngineeringReflection AI is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, ancestry, age, marital status, disability, genetic information, veteran…
Member of Technical Staff - Platform Foundations
7 months agoReflection · New York, United States +2
On-siteFull-timeLead / staffEngineeringReflection AI is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, ancestry, age, marital status, disability, genetic information, veteran…
Member of Technical Staff - Safety
9 months agoReflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffScience & researchOwn the red-teaming and adversarial evaluation pipeline for Reflection’s models, continuously probing for failure modes across security, misuse, and alignment gaps.; Work hand-in-hand with the Alignment team to translate safety findings into concrete guardrails, ensuring models…
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffData & AIData is playing an increasingly crucial role at the frontier of AI innovation. Many of the most meaningful advances in recent years have come not from new architectures, but from better data.
Reflection · San Francisco, California, United States +2
On-siteFull-timeLead / staffData & AIData is playing an increasingly crucial role at the frontier of AI innovation. Many of the most meaningful advances in recent years have come not from new architectures, but from better data.
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.