Protocol Engineer
We are envisioning the future of high-performance distributed systems revolving around Solana at Jito Labs. Our team has developed Jito-Solana, a leading MEV Solana client, and the Jito Block Engine, which has transformed block building on the Solana network. Jito-Solana currently powers 88% of stake and 1,100 validators, generating an additional $370M in revenue for network stakers and validators.
At Jito Labs, you will collaborate with a small, agile group of engineers and operators dedicated to tackling complex technical challenges at the forefront of Solana trading and infrastructure. As a profitable company with a well-received product, we possess the ability to address ambitious technical hurdles while maintaining a startup's agility. Our team culture highlights:
Ownership: Every team member plays a significant role in shaping technical decisions and guiding our product roadmap.
Execution: We prioritize speedy delivery and iterate based on real-world feedback, emphasizing progress over mere activity.
Excellence: We tackle intricate problems with sophisticated, scalable solutions.
Growth: Our solid financial standing and market fit allow us to focus on long-term outcomes.
If you are enthusiastic about:
Resolving intricate distributed systems challenges
Engaging with advanced MEV and trading infrastructure
Contributing to open-source blockchain technology
Driving measurable enhancements on one of the fastest-growing L1 blockchains
…then we look forward to your application.
We are not simply creating tools but designing the future of high-performance distributed systems. Our efforts directly influence the Solana ecosystem, paving the way for a quicker network, enhanced capital efficiency, and more resilient DeFi applications for millions of users.
We provide competitive compensation, notable equity, and the chance to work on significant problems. Instead of just observing the blockchain future unfold, join us in shaping it.
About the Position:
Jito Labs is in search of a Protocol Engineer to spearhead the advancement of decentralized finance on Solana. We are on the lookout for inventive and driven engineers who excel at handling problems with vast design spaces and crafting simple and ingenious solutions. This role is dynamic, ideal for low-level problem-solvers to flourish.
Responsibilities
Design Solana programs utilizing Solana native and Anchor programming models
Develop secure, efficient, and reliable code
Create public-facing test plans and documentation for the code developed
Establish substantial testing infrastructure to verify adherence to specifications
Collaborate with the team and customers to leverage internal tools and knowledge
Lead features and products from inception to completion with a strong sense of ownership
Effectively address performance bottlenecks and troubleshoot issues across the entire stack
Qualifications
5+ years of systems programming experience in Rust, C, or C++
Experience developing multiple Solana programs in Solana native programming or utilizing the Anchor framework
Strong communication and collaboration skills
Ability to simplify complex problems into straightforward solutions
Prior experience at a startup with fewer than 50 employees
Nice to-Have
Background in security
Understanding of the DeFi landscape
Salary range: $150,000 - $200,000 annually
Competitive compensation and various equity options
All expenses paid for team retreats and conferences
Unlimited PTO
Weekly meal vouchers
Full Stack Developer (Front End Leaning)
Winnables.com is looking for a creative front-end-leaning Full Stack Developer who loves bringing slick, engaging user experiences to life while still caring about the behind-the-scenes details.
You’ll collaborate closely with designers and product leads, iterate quickly on new ideas, and see the direct impact of your work in the hands of players around the world.
If you enjoy mixing imaginative front-end polish with just enough back-end know-how to make the magic happen, we’d love to hear from you.
Key Responsabilities:
Transform design mock-ups and product concepts into polished, responsive game screens, animations, and flows.
Collaborate daily with designers, product leads, and blockchain engineers to prototype, ship, and iterate on new games or new features.
Continuously test, debug, and optimize for performance across devices and network conditions.
Review code, share best practices, and help keep our small codebase clean, secure, and easy to extend.
Use player feedback and analytics to refine existing features and guide new ideas from concept to launch.
Champion accessibility and web-standards compliance, ensuring every player—regardless of device or ability—has a first-class experience.
What You’ll Be Building
Build interactive mini-games that deliver smooth, responsive gameplay.
Create real-time multiplayer features and live game mechanics.
Develop pack-opening systems with eye-catching, engaging animations.
Engineer raffle and lottery-style games that are fully on-chain and provably fair.
Implement Plinko and other physics-based games, tuned for fun and balance.
Craft user-friendly interfaces that perform flawlessly across mobile, tablet, and desktop.
Qualifications:
Tech Stack:
Core: TypeScript · React & Next.js · Node.js · Zustand · WebSockets & REST
Data & Infra: PostgreSQL (Supabase) · Redis · Docker · GitHub
Observability: Grafana · PostHog
Design & Web3: Figma · viem / wagmi
What We're Looking For
Strong experience with TypeScript and modern JavaScript
Solid understanding of React and Next.js ecosystem
Experience building real-time applications with WebSockets
Familiarity with Node.js backend development
Knowledge of PostgreSQL and database design
Experience with responsive design and mobile-first development
Understanding of state management patterns (Zustand experience preferred)
Understanding of web security fundamentals (CSRF protection, secure authentication flows, input validation)
Interest in gaming mechanics and interactive user experience.
Nice to Have
Experience with gaming or interactive application development
Knowledge of blockchain technologies and Web3 integration
Familiarity with monitoring tools (Grafana, PostHog)
Experience with Docker and containerization
Understanding of real-time multiplayer game architecture
Company Description:
Winnables.com is on a mission to re-imagine iGaming through full on-chain transparency. We believe players deserve provably fair odds, transparent math, and no black-box RNGs. Every spin and ticket purchase is recorded immutably on Ethereum, so anyone can audit the outcome, track prize pools, or even build their own analytics on top of our contracts.
All of our games are designed and engineered 100% in-house by a small, senior team that blends game design, cryptography, and smart-contract security. We currently operate two flagship experiences:
Raffles – transparent prize drawings where every ticket lives on-chain, letting players verify fairness before and after the draw.
Loot Packs – blockchain-powered loot boxes that reveal randomized rewards with engaging pack-opening animations.
We’re still just getting started. The roadmap is full of green-field challenges—and real, measurable impact on an industry ripe for change. Join us and help craft the next generation of fair, fun, and truly player-owned gaming.
UI/UX Designer
Job Summary:
We're building ClearTrack, a lightweight SaaS tool for tracking tasks and performance in remote teams. We're looking for a UI/UX designer to design 6–8 clean, modern dashboard screens (desktop + mobile).
Scope of Work:
1. Design dashboard UI (Task List, Time Tracker, Reports, Settings)
2. Create responsive mockups in Figma
3. Deliver clickable prototype + style guide
4. Collaborate with our developer for smooth handoff
Budget:
Fixed: $800–$1200 (negotiable based on experience)
Requirements:
1. SaaS/dashboard UI design experience
2. Proficiency in Figma
3. Strong communication & fast turnaround
To Apply:
If you're interested, please:
1. Send a short proposal letter explaining why you're a good fit
2. Share your portfolio (SaaS/dashboard preferred)
3. Include your email address
4. Mention your availability and estimated delivery time
Bonus if you have:
Experience designing admin panels or productivity tools
Back End Developer in AI projects
You will work closely with stakeholders across product, engineering, data science, and operations to identify opportunities for AI integration, manage implementation, and maintain AI systems post-deployment.
Key Responsibilities:
Collaborate with cross-functional teams to identify and prioritize opportunities for AI integration.
Evaluate and select appropriate AI/ML tools, APIs, and frameworks that align with business objectives.
Deploy and integrate AI models into production environments and existing systems (e.g., CRM, ERP, customer support platforms).
Develop automation workflows using AI tools (e.g., ChatGPT, Claude, Azure AI, Google Vertex AI).
Ensure data pipelines, model outputs, and integrations are reliable, secure, and scalable.
Translate business needs into technical requirements for AI systems.
Monitor, troubleshoot, and optimize deployed AI systems for accuracy, performance, and ethical alignment.
Maintain documentation and provide training or support to internal teams on AI tools and capabilities.
Stay current with AI trends, emerging technologies, and best practices.
Required Qualifications:
Certified specialist in AI or Bachelors or Masters degree in Computer Science, Engineering, Data Science, or a related field.
Familiarity with cloud platforms (AWS, GCP, Azure) and their AI services.
Strong understanding of APIs, microservices architecture, and RESTful integration.
Excellent communication skills and ability to translate complex AI concepts for non-technical stakeholders.
Preferred Qualifications:
Experience with GenAI tools like OpenAI (GPT-4), Anthropic Claude, or Google Gemini.
Knowledge of prompt engineering and small language model (SLM) orchestration.
Experience integrating AI into SaaS or enterprise software products.
Background in data security, compliance, and AI ethics.
Founding Head of Engineering
DevOps Engineer
Responsibilities:
Architect zero-downtime multichain ops (Arbitrum/BASE rollups, fraud-proof autoscaling)
Design self-healing node clusters that counter NFT minting DDoS attacks in <5ms
Embed on-chain circuit breakers to halt exploits before they drain $CORE liquidity
Turn Discord FUD storms into infra stress metrics via custom LLM pipelines
You’re a Fit If:
You’ve slashed gas costs by 30%+ in past DeFi/GameFi projects (prove it)
Your idea of “monitoring” includes MEV bot behavior and DAO vote latency
You’ve built systems where “chaos testing” means simulating chain splits during PvP wars
You see player rage-quits as a critical infrastructure metric
Compensation:
Base + % of rescued gas fees (paid in $CORE)
NFT “Backbone” Pass (permanent % of protocol revenue)
DAO voting power scaled to uptime milestones (*99.99% SLA = veto rights*)