Subzero Labs

Engineering Manager

• Manage and grow engineering teams working on protocol, infra, security, or developer-facing systems
• Drive hiring, onboarding, and career development for engineers at all levels
• Create an environment of high ownership, psychological safety, and collaborative velocity
• Partner with engineering leadership to implement structured processes around code reviews, RFCs, testing, and release management
• Support engineers through regular 1:1s, performance feedback, goal setting, and mentorship
• Collaborate cross-functionally with product, BD, DevRel, and community teams to align roadmap delivery
• Help manage team rituals - including sprint planning, retrospectives, technical reviews, and team offsites
• Drive internal communication and alignment across globally distributed teams

Technical Project Manager

• Lead technical planning and delivery across core engineering projects — from infrastructure to developer-facing tools.
• Coordinate timelines, milestones, and dependencies across engineering, product, and leadership to keep initiatives on track.
• Write clear requirements (PRDs), manage the backlog, and ensure priorities stay aligned with company goals.
• Drive on-time delivery of high-quality systems, tools, and product experiences.
• Surface and communicate project status, risks, and blockers early — and work proactively to resolve them.
• Establish and refine lightweight processes that improve focus, accountability, and execution velocity.
• Champion engineering excellence by promoting clarity, documentation, and continuous improvement in how we build.
• Leverage AI and modern tooling to improve coordination, tracking, and development workflows.
• Define and uphold what great technical execution looks like at Rialo.
• Act as the connective tissue between engineering, product, and leadership to ensure alignment and momentum.
• Identify areas for optimization and help teams scale with quality and efficiency.

Engineer

• We’re looking for an engineer deeply familiar with modern programming language tooling. Your mission is to build robust, performant VSCode plugins, LSP servers, and Debug Adapter Protocol (DAP) integrations that support custom language features, static analysis, and runtime debugging across Rialo’s programmable surface.
• This is infrastructure-level work that directly impacts how developers interact with the core of Rialo. You’ll design systems that understand the structure and semantics of our languages and surface that understanding in powerful, intuitive tools.
• What You'll Do
• Develop and maintain VSCode extensions with intelligent editor features like autocomplete, hover, navigation, diagnostics, and inline feedback
• Design and implement LSP servers for custom, typed micro-languages using syntax-aware tools (Tree-sitter or custom parsers)
• Build and extend DAP servers to enable breakpointing, stepping, stack inspection, and interactive debugging across on-chain and local runtimes
• Model and operate on ASTs, CSTs, scopes, and type environments to power semantic tooling features
• Work closely with runtime and compiler developers to bridge multi-stage execution models (development, deploy, runtime) with real-time feedback in the editor
• Prioritize tooling UX, performance, and responsiveness as first-class concerns
• Contribute to broader Rialo goals by supporting robust, composable language infrastructure through your work

Engineering Manager

Technical Project Manager

VSCode Language Tooling Engineer