About the Company

Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.

The Department: Trading Systems

The Role: Senior Software Engineer (Full Stack)

Our advanced trading platform sits at the intersection of crypto, equities, and prediction markets. One of the most technically ambitious trading environments being built today. As a Senior Software Engineer, you will design and implement a variety of software systems that motivate, execute, and settle what is shaping up to be the largest transfer of wealth from the past to the future.

We are looking for a talented software engineer that is focused and fascinated by the real time movement of price and value at wire speed across a global liquidity network of buyers and sellers.

Responsibilities:

• Conceive, assemble, and deliver the financial platform that meets the trading team’s functional and non-functional requirements
• Build out our global liquidity network at scale across key financial centers worldwide
• Cultivate best practices and collaborate with engineering teams structuring applications
• Realize and promote the domain model and architecture for our trading platform
• Leverage key software systems and services from across Gemini’s portfolio of exchange, settlement, and custodian technologies
• Own projects end to end  from design through delivery  working cross-functionally with product managers and stakeholders

Minimum Qualifications:

• Proficiency with Golang (preferred) or equivalent back-end experience in Java, Scala, or similar; strong back-end engineers with comparable experience will be considered
• Proficiency with TypeScript (React) for front-end development
• At least 6 years of experience in full-stack development, with a strong focus on design, development, and delivery of scalable, distributed systems
• Experience building microservices deployed on AWS and Kubernetes
• Track record of working with a distributed design and development effort
• Strong analytical and conceptual skills with solid organizational skills and attention to detail
• Engaging communicator with a knack for precision and conciseness
• Independent decision maker able to act decisively based on your domain expertise
• Understanding of communication protocols, specifically FIX, Websocket, REST and GraphQL

Preferred Qualifications:

• Understanding of centralized financial exchanges (CeFi)
• Understanding of central limit order books and other liquidity providers
• Experience at a startup or high-growth technology company; demonstrated ability to operate with ownership and autonomy
• Background in crypto, equities trading, or prediction markets

It Pays to Work Here

We take a holistic approach to compensation at Gemini, which includes:

• Comprehensive health plans covered at 100% for employees and dependents
• Long-term incentive in the form of a new hire equity grant
• Paid Parental Leave
• Competitive paid time off

In Singapore, we have a hybrid work policy. Employees are expected to work from the office part of the week. We believe our hybrid approach increases productivity through more in-person collaboration where possible.

At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.

#LI-AA1

Role Summary

This role is an opportunity to work with a high‑agency startup team operating in the hard‑tech and energy systems space. You will play a critical role in building and scaling the user-facing products that operators, plant managers, and enterprise stakeholders rely on every day. This is a hands-on role. You will design, build, and ship production-quality UI systems that surface complex operational data in intuitive, performant interfaces. The role requires close collaboration with backend, product, and domain expert teams — and a genuine curiosity for how AI tools can accelerate and enhance your work.

Responsibilities

• Own the design and implementation of UI systems for Amperesand's MES and ERP platforms
• Build end-to-end frontend features including data visualization, workflow management, dashboards, and real-time telemetry displays
• Develop reusable component libraries and design systems that scale across the product
• Collaborate with backend and platform teams to define APIs and data contracts that support great user experiences
• Productionize UI code with a strong focus on reliability, accessibility, performance, and maintainability
• Leverage AI-assisted development tools to accelerate delivery and improve code quality
• Partner with product managers and domain experts to translate complex operational problems into intuitive interfaces
• Continuously improve the product through user feedback, usage analytics, and iteration
• Document component designs and architectural tradeoffs for cross-functional stakeholders

Qualifications

• 5+ years of experience in frontend or full-stack engineering, including production deployments
• Strong experience with TypeScript and React, including hooks, state management, and component architecture
• Experience building data-dense, real-time UIs such as dashboards, tables, and operational views
• Proficiency with modern frontend tooling (Vite, Next.js, or similar)
• Experience integrating with REST or GraphQL APIs and real-time data streams (WebSockets, SSE)
• Familiarity with testing practices (unit, integration, end-to-end)
• Comfortable working with AI coding tools (Copilot, Cursor, Claude, etc.) to supplement and accelerate development
• Proficiency in English and ability to communicate with wider teams
• Ability to travel up to 20% including internationally

Bonus Qualifications

• Background in energy engineering systems (power systems, energy storage, power electronics, or controls)
• Experience with IoT, manufacturing, or industrial platforms
• Exposure to design tools and ability to collaborate closely with UX/UI designers
• Experience with MES, digital twins, or asset health monitoring
• Open-source contributions to frontend projects
• Experience working within or building design systems
• Familiarity with CI/CD workflows and frontend DevOps practices
• Experience working with hardware, firmware, or operations teams

Please note: This role requires working on-site 5 days a week. We do not offer hybrid or remote options.

We are hiring for one of our clients. They are a fast-growing Web3 startup rethinking how digital identity and reputation work online. They’re building privacy-first infrastructure that lets users prove who they are and what they’ve done—without giving up personal data. Backed by strong ecosystem partners and a passionate founding team, the company is shaping a more trusted and user-centric internet.

We are seeking a Senior Quality Assurance (QA) Lead to own and elevate quality across the product lifecycle. You will define the QA strategy, and partner closely with Product, Engineering, and Design to ship reliable, secure, and delightful features.

Responsibilities

• Own end-to-end quality across the product suite — from defining QA strategy and test plans to hands-on execution, reporting, and continuous improvement.
• Shape the QA roadmap by setting up effective testing processes, tools, and metrics, ensuring smooth release cycles and data-driven quality tracking.
• Collaborate early and often with product and engineering to refine requirements, user flows, and acceptance criteria — advocating for testability and great user experiences.
• Plan and execute testing at every level (manual and automated): API, UI, integration, regression, and smoke — ensuring solid coverage and reliability.
• Drive smart automation — identify high-value test cases for automation and maintain stable, scalable test suites.
• Track and communicate quality metrics such as defect trends, coverage, and release health to keep the team aligned and proactive.
• Champion a shift-left mindset by embedding QA practices early in discovery and development, and helping engineers take ownership of quality.
• Oversee release readiness — from environment setup and data prep to go/no-go decisions and post-release validation.
• Lead defect management — prioritize fixes, uncover root causes, and turn insights into prevention and process improvements.
• Mentor and scale the QA function, building documentation, standards, and best practices that grow with the team.
• Partner with DevOps and Security to strengthen performance, reliability, and security testing — ensuring compliance and operational excellence.

Requirements

• 7+ years in QA/Software Quality roles with 2+ years leading QA initiatives or teams in a fast-paced product environment.
• Strong expertise in test strategy, risk-based testing, requirements analysis, and release management.
• Hands-on experience with test automation frameworks and tools (e.g., Playwright/Cypress/WebdriverIO, pytest/Jest, Postman/Newman, REST/GraphQL tools).
• Proficiency with CI/CD and version control (e.g., GitHub/GitLab Actions, Jenkins, CircleCI); experience integrating automated tests into pipelines.
• Solid understanding of modern web/mobile architectures, APIs, microservices, and cloud environments.
• Experience with non-functional testing: performance (e.g., k6, JMeter), reliability, accessibility, and security testing practices.
• Data-driven mindset with experience defining and reporting quality metrics and OKRs.
• Excellent communication and stakeholder management; able to translate technical quality issues into business impact and recommendations.

Nice to have

• Understanding of wallets and signing flows (e.g., MetaMask, WalletConnect, EIP-712 typed data), basic key management concepts.
• Exposure to smart contracts and EVM tooling (reading Solidity/ABIs, Foundry/Hardhat test basics, contract events).
• Experience testing dApp UX with wallet connectors, chain switching, and handling pending/confirmed/failed on-chain states.
• Awareness of token standards (ERC-20/721/1155), approvals/permits, and common failure modes (reverts, RPC errors, reorgs).
• Light exposure to wallet-aware E2E automation (e.g., Synpress or Playwright with mocked providers) is a plus.

We are hiring for one of our ecosystem projects in Web3. As a Web3 Full Stack Developer, you will design, develop, and maintain decentralized applications (dApps) and blockchain-based systems. You will work across the full stack, from smart contract development to front-end interfaces, collaborating with cross-functional teams to deliver secure, scalable, and user-friendly Web3 solutions. Your expertise in Web3 protocols and modern tech stacks will be critical to building robust applications for the decentralized web.

Key Responsibilities

• Smart Contract Development: Design, develop, test, and deploy secure smart contracts on various blockchain platforms (e.g., Ethereum, Solana, Polkadot, Cosmos).
• Backend Development: Build and maintain backend infrastructure for dApps using languages like Golang, Java, Node.js, or Rust, ensuring scalability and performance.
• Frontend Development: Create responsive, user-friendly front-end interfaces for dApps using modern frameworks (e.g., React, Vue.js, Next.js) integrated with Web3 libraries (e.g., ethers.js, web3.js).
• Blockchain Integration: Integrate dApps with blockchain networks, wallets (e.g., MetaMask, WalletConnect), and decentralized protocols (e.g., IPFS, The Graph).
• Protocol Development: Contribute to the design and implementation of Web3 protocols, including consensus mechanisms, cross-chain bridges, or DeFi primitives.
• Security & Testing: Implement secure coding practices, conduct audits, and develop testing frameworks to ensure the reliability and security of smart contracts and dApps.
• Optimization: Optimize performance of blockchain interactions, gas efficiency, and backend systems to enhance user experience and reduce costs.
• Collaboration: Work with product managers, blockchain engineers, and designers to deliver end-to-end Web3 solutions aligned with project goals.
• Research & Innovation: Stay updated on Web3 trends, emerging protocols, and new blockchain technologies to propose innovative solutions.

Qualifications

• Education: Bachelor’s or Master’s degree in Computer Science, Engineering, or a related technical field, or equivalent experience.
• Experience:
  • 3+ years of full stack development experience, with at least 1+ years in Web3 or blockchain development.
  • Proven experience building dApps or working on Web3 protocols (e.g., DeFi, NFTs, DAOs, or layer-2 solutions).
• Technical Skills:
  • Proficiency in Golang, Java, Node.js, or Rust for backend development.
  • Experience with smart contract languages like Solidity, Vyper, or Rust (for Solana/Polkadot).
  • Strong knowledge of front-end technologies (e.g., React, Vue.js, TypeScript, Next.js) and Web3 libraries (e.g., ethers.js, web3.js).
  • Familiarity with blockchain protocols (e.g., Ethereum, Solana, Cosmos, Polkadot) and tools (e.g., Truffle, Hardhat, Foundry).
  • Experience with decentralized storage (e.g., IPFS, Filecoin) and indexing solutions (e.g., The Graph).
  • Understanding of RESTful APIs, GraphQL, and microservices architecture.
• Web3 Knowledge: Deep understanding of blockchain concepts (e.g., consensus mechanisms, gas fees, EVM, cross-chain interoperability) and Web3 ecosystems (e.g., DeFi, NFTs, DAOs).
• Security Skills: Knowledge of smart contract security best practices, common vulnerabilities (e.g., reentrancy, front-running), and auditing tool

.Bonus Skills:

• Experience with layer-2 solutions (e.g., Arbitrum, Optimism) or cross-chain bridges.
• Familiarity with DevOps tools (e.g., Docker, Kubernetes) and cloud platforms (e.g., AWS, GCP).
• Contributions to open-source Web3 projects or blockchain protocols.
• Knowledge of cryptographic principles (e.g., zero-knowledge proofs, MPC).