This job has been archived and is no longer active.
This is a high-impact role with strong technical ownership — you'll shape core architecture and work hands-on with network infrastructure from the ground up.
Responsibilities:
Contribute to choosing and shaping the chain architecture (optimistic rollup, subnet, etc.).
Set up foundational infrastructure (testnet / DevNet / MVP).
Deploy and manage core components — nodes, sequencers, bridges, etc.
Ensure EVM compatibility and customize gas/token models as needed.
Help maintain DevOps, monitoring, and security processes.
Solid experience with blockchain infrastructure (beyond smart contracts).
Strong understanding of Ethereum and EVM internals.
Hands-on exposure to one or more frameworks such as:
Arbitrum Orbit
Avalanche Subnets
Others (L2 frameworks)
Proficient in Solidity, plus at least one of: Go, Rust, TypeScript.
Familiarity with infrastructure tooling: CI/CD, observability, cloud environments.
Knowledge of rollup architectures (optimistic, zk).
Experience working on or launching custom networks.
Background in zero-knowledge systems, cryptography, or custom VMs.
Remote + full-time in EU timezone. Working with the founder and the business team..
Direct collaboration with founders and technical decision-makers.
High-impact role with real influence on architecture and strategy.
Competitive compensation
Archived on: 7/21/2026

Upsilon IT
Upsilon is a product studio working as a marriage of two businesses: we build our own B2B SaaS products and act as a tech partner for fast-growing companies.