Concurrency Jobs

Reflection ai

Reflection is a research lab dedicated to making intelligence open and accessible. We build open models that empower users to control their intelligence and shape the future of AI. In this role, you will develop the critical evaluation infrastructure that researchers rely on to understand model capabilities, inform training decisions, and assess readiness for release. Your work will encompass evaluation authoring, distributed execution, and results analysis, with a specific emphasis on pre-training. You will collaborate closely with researchers to enhance the speed, reliability, and ease of use of evaluations, ensuring that the outcomes accurately reflect the models being assessed.

Elastic is seeking a Principal Software Engineer to join the Elasticsearch - Storage Engine team. This globally distributed, fully remote team focuses on developing core storage and query technologies for observability workloads. The role involves improving storage efficiency, advancing query processing and performance, and optimizing data layouts. The ideal candidate will drive the technical vision, architecture, and design of Elasticsearch's core storage and query engine, with a proven track record in high-performance, scalable database or search engine technologies and the ability to lead technical initiatives across organizations.

$160k - $304k

Artisan is building a new, ambitious project at the frontier of agentic AI, pushing the boundaries of what AI agents can achieve. This role is for a hands-on technical lead responsible for designing and building the core AI architecture, focusing on agent behavior, multi-agent systems, tool use, context management, and evaluation. The position offers broad technical ownership as an individual contributor, involving consequential architecture decisions, writing critical system components, and close collaboration with existing engineers and leadership. The ideal candidate enjoys tackling uncertain problems and executing detailed engineering to deliver robust solutions.

$250k - $325k