Senior & Staff Engineer Jobs in 2026

Lightspark is looking to hire a Staff Product Manager, Payments Orchestration & Intelligence to join their team. This is a full-time position that is based in Los Angeles CA.

Lightspark - Enabling an open payment protocol for the Internet via the Lightning Network.

About Vercel:

Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build for the AI-native web.

Our mission is to en...

About Arize

AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. That’s where we come in. Arize AI is the leading AI & Agent Engineering observability and evaluation platform, empowering AI...

About Arize

AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. That’s where we come in. Arize AI is the leading AI & Agent Engineering observability and evaluation platform, empowering AI...

Polymarket is looking to hire a Senior QA Engineer to join their team. This is a full-time position that is based in New York NY.

Polymarket - The worlds largest decentralized prediction market.

Elliptic is looking to hire a Principal Product Marketing Manager to join their team. This is a full-time position that is based in San Francisco CA.

Elliptic - Know exactly what happens on any blockchain.

Mesh is looking to hire a Senior Full Stack Engineer - Web3 to join their team. This is a full-time position that can be done remotely anywhere in Europe.

Mesh - A platform for easy crypto payment across hundreds of exchanges, wallets and providers.

Uphold is looking to hire a Senior Marketing Manager, Performance/Growth Marketing to join their team. This is a full-time position that is based in New York NY.

Uphold - A global, multi-asset digital trading platform with more than 10M users.

Polygon is looking to hire a Senior Partner Manager, Payments to join their team. This is a full-time position that can be done remotely anywhere in the United States.

Polygon - The fundamental protocol that allows anyone to create and exchange value, powered by zero-knowledge technology.

TaxBit is looking to hire a Staff Product Manager - Core Forms & Filings to join their team. This is a full-time position that is based in Seattle WA.

TaxBit - Modern tax and accounting solution for the digital economy.