decircle

AI Engineer

• Accelerate engineering velocity with AI.
• Contribute meaningful production code.
• Help shape AI functionality in our flagship product.
• Systematize AI usage across the team.
• Stay ahead of what’s coming.

Applied AI Engineer

• Design and build single and multi-agent systems with planning, memory, and tool use
• Build and operate MCP servers with secure schemas and permissions
• Develop agentic workflows using LangGraph or equivalent frameworks
• Integrate LLMs via SDKs; manage prompts, structured outputs, and tool calling
• Define and run LLM evaluations for quality, correctness, latency, cost, and regressions
• Build observability and reliability infrastructure: logging, tracing, retries, state management
• Optimize performance and cost from prototype to production
• Mentor engineers and establish agentic best practices

Full-stack Engineer

• Responsible for extending Circle's in-house blockchain systems infrastructure to support the tokenization of the world;
• Analyzing requirements, procedures, and problems to improve existing systems and modifying systems;
• Building and owning scalable microservices that are responsible for reliable and secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols;
• Collaborating with Product and Engineering teams to design, test, and shape Circle features, including developing and documenting system design procedures, testing procedures, and quality standards;
• Troubleshooting program and system malfunctions to restore normal functioning;
• Building publicly accessible APIs that make it simple for developers to integrate with complex payment systems;
• Integrating Platform Services with leading banks and financial technologies;
• Consulting with management to ensure agreement on system principles;
• Writing the infrastructure to deliver great payment experiences, including data sources (SQL or NoSQL), messaging systems and APIs;

Staff Software Engineer

DeFi

• Manage a portfolio of yield-generating opportunities across protocols and blockchains.
• Collaborate with engineers on strategy execution and integration.
• Design and manage algorithm development and backtesting for actionable insights on DeFi portfolio management.
• Create frameworks for risk analysis and portfolio optimization.
• Monitor data, forecast risk, and design triggers to enter opportunistic strategies or exit major market events early

DeFi Researcher

Risk

• Conduct in-depth risk assessments of DeFi protocols (AMMs, lending markets, bridges, LSTs, etc.) being considered for collateral onboarding
• Analyze smart contract, liquidity, counterparty, and market risks across protocols and assets
• Develop and refine risk models and frameworks for evaluating new collateral types (on-chain and off-chain)
• Collaborate with engineers and governance participants to present risk evaluations, dashboards, and scenario analyses
• Monitor the ongoing performance and risk exposure of existing collateral types
• Produce clear, data-driven reports and recommendations for governance and internal stakeholders
• Stay ahead of DeFi trends, exploits, and evolving risk practices, incorporating learnings into Sky’s risk frameworks

Risk Lead

Smart Contract Engineer

• Design, implement, and test Solidity smart contracts for data tokenization, licensing, and pricing workflows.
• Develop robust on-chain data structures to represent enterprise datasets, metadata, and access conditions.
• Architect marketplace and exchange primitives including order books, escrow, dispute resolution, and royalties.
• Integrate pricing logic grounded in financial derivatives (e.g., options pricing, bonding curves, auction models).
• Optimize gas efficiency and ensure upgradability where needed using proxies or modular contracts.
• Collaborate with auditors and internal security teams to harden contracts against vulnerabilities.
• Work cross-functionally with product and protocol teams to define new features and mechanisms.

Solidity Engineer

• You'll work directly with founder and CEO Sebastian Delgado (co-founder of Fei Labs), taking ownership of meaningful chunks of backend, full-stack, and security work.
• Design and build backend services connecting custody, fiat rails, policies, and operational workflows.
• Implement and maintain APIs and services for ACH, wires, cards, permissions, AML/compliance workflows, and reporting.
• Implement and review Solidity smart contracts, focusing on correctness, safety, and upgradeability.
• Contribute to threat modeling, security reviews, and audit/vendor management.
• Collaborate on the design and implementation of customer-facing applications (currently Dart/Flutter).
• Translate user and operational needs into product and UX decisions, especially around permissions, approvals, and money flows.
• Own parts of audit/security review processes for your areas of the stack.
• Coordinate with external security firms.
• Build internal systems and processes with a security-first mindset appropriate for handling customer funds.

Fullstack Engineer

Growth Marketing

• Develop and execute go-to-market (GTM) strategies to drive adoption of Pond’s AI models.
• Design and build a Developer and Area Ambassador Program to attract developers and general users while increasing project visibility and engagement.
• Optimize funnel metrics for developer and general user onboarding, ecosystem engagement, and retention.
• Identify and implement growth loops using on-chain data insights and AI-powered automation.
• Scale Pond’s developer ecosystem, fostering contributions and integrations.
• Manage community growth, overseeing content, engagement, and incentive programs.
• Lead educational initiatives, including workshops, hackathons, and grants to attract builders.
• Drive strategic partnerships with L1/L2 chains, DeFi protocols, DAOs, and AI-focused projects.
• Work closely with business development to unlock high-impact integrations.
• Collaborate with marketing and research teams to position Pond as an AI leader in web3.
• Define and track KPIs related to user growth, adoption, and ecosystem health.
• Run A/B tests on user journeys, onboarding flows, and activation strategies.
• Leverage on-chain analytics, growth hacking techniques, and AI automation to optimize engagement.
• Experience with building ambassador program.

Growth Lead

• Design and build full-stack systems for our AI financial agent.
• Develop scalable APIs and backend services to support agent workflows.
• Build high-performance, user-facing interfaces to visualize agent reasoning and surface insights, as well as enable real-time interaction.
• Collaborate with AI researchers to integrate and productionize agent logic.
• Connect and manage data pipelines from financial sources.
• Implement testing, monitoring, and performance best practices.
• Stay up to date with LLM frameworks, full-stack tools, and financial trends.

Full Stack Engineer, AI

• Build core backend services, developer-facing APIs, and UIs that power Predicate’s developer platform
• Focus on delivering a high-quality developer experience, with direct ownership over feature design and implementation
• Contribute to the technical direction of our application architecture across backend and frontend
• Design and build UIs, SDK, and API infrastructure
• Build visualization tools for monitoring policy enforcement and network activity
• Collaborate with protocol engineers to design developer-friendly abstractions

Senior FullStack Engineer

Frontend Engineer

• Build and maintain modern front-end web applications that power Cybrid’s customer, partner, and internal-facing experiences.
• Implement new features and enhancements using React and TypeScript, integrating seamlessly with our Ruby on Rails backend APIs.
• Work closely with external partners and internal teams to design and deliver tailored, visually appealing, modern, performant, and delightful user experiences.
• Write automated front-end tests and monitor application performance to ensure a high-quality, responsive UI in production.
• Leverage AI-assisted development tools to accelerate coding, testing, and documentation while maintaining high code quality.

Senior Front End Engineer

• Lead the architecture and development of Reya’s real-time trading and network interface
• Build highly performant, responsive UI components for data-heavy DeFi applications
• Ensure high standards of code quality, testing, and maintainability across the frontend codebase
• Optimize performance for low-latency updates and real-time feedback
• Collaborate closely with backend, protocol, and design teams

Senior Frontend Engineer

Software Engineer

• Own technical direction and architecture for PVP’s mobile trading experience.
• Build high-performance React Native UI for real-time trading, analytics, and social features at scale.
• Craft smooth, interruptible animations, gesture-driven motion systems, and tactile feedback that feel premium and effortless.
• Translate Figma design systems into reusable RN component libraries that scale.
• Work closely with designers to iterate on UI/UX in Figma and code, ensuring pixel-level fidelity.
• Design a robust, resilient real-time data pipeline for mobile using modern TypeScript state management and WebSockets.
• Bridge native modules (Swift/Kotlin) where performance, animations, or haptics demand it.
• Partner with backend engineers to optimize API and data-layer efficiency for bandwidth and latency.
• Profile and eliminate performance bottlenecks—achieve consistent 60 FPS across devices and platforms.
• Ship production-ready code with monitoring, debugging, and iterative tuning post-launch.

Senior Mobile Engineer

• Own products end-to-end: discovery → definition → design/UX → implementation → launch → iteration
• Write production-grade TypeScript across the stack (React/ Next.js on the front-end; Node.js on the back-end) while following best practices
• Build and maintain internal tools that make our team faster
• Ship features across our external sites and webapps, including Space – our founder portal – and public marketing surfaces
• Craft polished UIs with React and our internal component library; contribute components and patterns back to the library
• Integrate third-party APIs (auth, payments, email) and own data models, caching, and performance
• Raise the bar on engineering quality: code reviews, CI/CD, reliability, and accessibility

Software Engineer – Full Stack

• Cultivate relationships with key opinion leaders (KOLs), influencers, and stakeholders, strengthening Sei’s position as a trusted partner in the blockchain ecosystem.
• Design and execute strategies to grow Sei's mindshare and the number of public advocates in key markets, engaging developers, partners, and the broader community to drive adoption and brand visibility.
• Cultivate and disseminate compelling stories and content that align with Sei's core narrative, leveraging ecosystem partnerships and key channels to broaden Sei's distribution and solidify its position as the fastest Layer 1 blockchain.
• Monitor emerging industry trends, narratives, and competitor activities to identify new opportunities for ecosystem growth and alignment with Sei’s vision.
• Track emerging industry narratives, competitor activities, and platform adoption trends to identify strategic opportunities for organic community growth on Sei.
• Develop and facilitate programs, resources, and content that equip and motivate community members to create and share their own valuable content and initiatives.