Company Description

Lume is a DeFi strategy layer and user experience platform that makes crypto investing effortless, automated, and accessible to everyone.

We are reimagining how people interact with DeFi. We're building the most user-friendly platform for strategy-driven trading, perpetuals, token discovery, and wallet infrastructure — all on Solana. Think Robinhood x Stripe, rebuilt for crypto-native users and degens.

If you’re passionate about consumer fintech, next-gen UX, and scaling DeFi to the masses—we’d love to connect.

As a mobile developer, you will be responsible for developing and maintaining applications, integrating APIs, and ensuring a seamless user experience. When working on a cutting-edge finance app, you must be vigilant about securing user data and handling it cautiously.

Responsibilities

• Develop and maintain mobile applications using React Native, targeting both iOS and Android platforms.
• Write clean, maintainable, and efficient code following best practices.
• Work with native modules and third-party libraries to enhance app functionality.
• Collaborate with UI/UX designers to implement intuitive user interfaces.
• Optimize app performance and ensure smooth user experiences.
• Debug, troubleshoot, and resolve issues across platforms.
• Stay up to date with the latest industry trends and technologies.

Qualifications

• Proficiency in React Native with experience in building mobile applications.
• Strong knowledge of JavaScript (ES6+), and TypeScript is a plus.
• Experience with Redux, Context API, or any state management frameworks.
• Familiarity with RESTful and GraphQL APIs, third-party integrations, and backend communication.
• Experience developing applications with complex data visualizations and real-time interactive dashboards
• Proven experience building security-focused mobile apps, including features like biometric authentication, encrypted storage, and user data protection best practices.
• Knowledge of mobile development tools like Xcode, Android Studio, and debugging tools.
• Understanding of React Native performance optimizations and best practices.
• Experience with Git for version control.
• Familiarity with Agile development methodologies.
• Prior experience in publishing apps to the Google Play Store and the Apple App Store is a plus.

Nice to Have:

• Experience with Expo Tools.
• Blockchain Experience, especially in Web3

Company Culture and Values:

• Fully Remote: We operate as a fully remote company, allowing our team members to work from anywhere in the world.
• Commitment to Innovation: We are dedicated to pioneering technology and encourage our developers to explore and execute their innovative concepts.
• Learning from Mistakes: We view mistakes as valuable learning opportunities, fostering a culture of continuous improvement.
• Enhancing Expertise: Our primary objective is to enhance the expertise and market exposure of our team, providing growth opportunities.
• Work-Life Balance: We value the balance between work and personal life for our team members, promoting well-being and flexibility.
• Trust and Freedom: We trust our developers and hire those who share our commitment to the Lume vision, allowing them the freedom to take time off as needed.

Apply Now:

Caiz

Revolutionizing Islamic Finance with Blockchain Technology

Are you ready to be part of a groundbreaking initiative that combines Islamic finance principles with cutting-edge blockchain technology?

Look no further than Caiz – The First Islamic Ecosystem Built on Blockchain

At Caiz, our mission is clear: to create a Fiqh compliant financial ecosystem that provides our community with fair and easy access to ethical financial products and services. We believe in empowering individuals to build a strong financial future while engaging in long-term economically beneficial behavior.

Our native coin, Caizcoin, that fuels the Caizblockchain. With Caizcoin, you can make seamless payments, store value, and interact with a range of ethical financial products we are developing. The centerpiece of our ecosystem is the innovative Caizapp, giving users complete control over their digital assets.

We are a passionate team reshaping finance, and we are expanding our dynamic workforce. Join us in a collaborative work environment focused on creating a fast and compliant money transfer structure.

Why to Join Caiz?

• Innovative & Purpose-Driven: At Caiz, we combine advanced blockchain technology with the principles of Islamic finance to create an innovative and modern financial system. Join us to be part of a forward-thinking organization that is reshaping the future of finance.
• Ethical Impact: As part of Caiz, you'll be working in an Organization that prioritizes ethics and integrity in all its operations, ensuring that every solution we offer aligns with the core values of fairness, transparency, and respect.
• Growth & Learning Opportunities: At Caiz, we value personal and professional growth. You'll have the opportunity to learn, innovate, and grow within a dynamic, supportive environment, while contributing to the development of ethical financial solutions.
• Global Vision, Local Impact: Caiz is focused on creating an inclusive, sustainable financial system that empowers individuals globally. You’ll be contributing to a company that has a positive impact on local communities and the global financial landscape.
• Collaborative Culture: We believe in teamwork and collaboration. You'll work alongside passionate professionals who are committed to driving change in the crypto and blockchain space, working together to create an ethical financial future.
• Secure & Transparent Environment: We emphasize trust and security in all aspects of our operations. As part of Caiz, you’ll be part of a transparent organization that values customer trust and ensures the highest security standards in the crypto space.

Tasks

We are looking for a highly skilled Blockchain Developer with expertise in Solidity and Rust to join our growing engineering team. You will play a key role in developing and optimizing smart contracts, blockchain protocols, and DeFi components that power the Caiz ecosystem.

As part of the core blockchain development team, you’ll work on both Ethereum-compatible smart contracts and Rust-based custom chain logic, contributing to secure, scalable, and innovative blockchain infrastructure.

Responsibilities:

• Design, develop, and deploy smart contracts using Solidity on EVM-compatible blockchains.
• Build and maintain Rust-based blockchain modules, such as on Substrate or Solana-compatible platforms.
• Contribute to the design of custom blockchain protocols and token standards.
• Write secure, gas-optimized, and thoroughly tested smart contracts.
• Collaborate with frontend and backend teams to integrate blockchain components into products.
• Conduct code reviews, audits, and vulnerability assessments for blockchain code.
• Analyze and improve the performance, security, and scalability of the Caiz blockchain.
• Stay up-to-date with the latest developments in blockchain technologies, including new EIPs, cryptographic primitives, and layer-2 solutions.

Requirements

Experience:

• 3+ years of experience in blockchain development with hands-on coding in Solidity and Rust.
• Strong understanding of smart contract design, blockchain architecture, cryptography, and consensus mechanisms.
• Experience developing and deploying smart contracts on Ethereum or similar EVM chains.
• Proficiency in Rust for blockchain environments such as Substrate or Solana.
• Familiarity with Web3.js, Ethers.js, Hardhat, Truffle, and related tools.
• Understanding of DeFi protocols, token standards (ERC-20, ERC-721, etc.), and layer-1/layer-2 ecosystems.
• Experience with version control systems (Git) and CI/CD workflows.
• Strong problem-solving skills and ability to write clean, maintainable code.

Preferred Skills

• Experience in building or contributing to a Layer 1 or Layer 2 blockchain.
• Knowledge of blockchain security best practices and audit processes.
• Exposure to zero-knowledge proofs (ZK), rollups, or cross-chain bridges.
• Experience in working within agile or startup environments.
• Understanding of Islamic finance or Sharia-compliant financial principles is a plus.

Level of studies: Bachelor’s degree in Computer Science, Software Engineering, Mathematics, or a related technical field.

Language Requirements: Fluent in English

Benefits

Benefits at Caiz:

• Competitive Financial Compensation: We offer financial benefits that reflect the value of your work and dedication.
• Work Flexibility: Enjoy the flexibility to work from home, the office, or even abroad.
• Annual Holidays: Generous paid time off to help you maintain a healthy work-life balance.
• Relocation Assistance: We provide relocation support for employees moving to new locations.
• Professional Development: Opportunities for training, certifications, and career growth.
• Employee Recognition: Programs to celebrate and reward your achievements and contributions.
• Inclusive & Collaborative Culture: A supportive and diverse work environment where your voice matters.
• Diversity, Equality, and Inclusion: We are committed to fostering a workplace that values diversity and promotes equality and inclusion for all employees.

Don't miss this opportunity – apply now and be part of the Caiz revolution.

Apply Now:

What We’re Building

Ares is the newest product under Fountain Platform, focused on building high-performance social trading platform for decentralized markets.

We believe trading has evolved — it’s no longer solitary. It’s cultural. It’s real-time. It’s driven by memes, narratives, and reflexive attention loops. Yet most platforms are stuck in static tools built for yesterday’s market structure.

Ares is built for what trading has become — and where it’s going. We fuse speed, signal, social mechanics, and cultural context into a unified trading experience designed for today’s markets — and tomorrow’s meta. At the core is a real-time intelligence layer that aggregates onchain and offchain data, surfacing the pulse of the market as it emerges. But information alone isn’t power — influence is. Ares turns trading into a collaborative, reputation-driven game where every trade is a signal, and every user is a node of intelligence.

We’re not building a better terminal. We’re building the next dominant trading platform — one where culture leads, conviction is rewarded, and traders move markets together.

We’re backed by top VCs and Alliance (tier 1 crypto incubator). This is your opportunity to help define what the future of trading looks like — from the ground up. This isn’t a typical job — and we’re not looking for typical people. We want resourceful, hungry, top 1% builders who move fast and think like founders.

About the Role:

We’re looking for a product-driven senior or staff-level engineer. Our engineering team tackles complex challenges at the core of our trading infrastructure and user experience. At Ares, engineering defines the culture, pace, and quality of everything we build — pushing the limits of what’s possible in crypto-native systems.

What You’ll Do

• Work directly with the CEO and have transparency into other aspects of the company
• Architect important systems and anticipate strategic and scaling-related challenges via thoughtful long-term planning
• Design and implement core infrastructure across the full stack — from high-performance frontends in Next.js + Tailwind to backend systems in NestJS, PostgreSQL, Redis, and Solana RPCs
• Work on transactional engines that optimize for execution speed, accuracy, and UX under volatile, memecoin-driven conditions
• Drive the architecture of our real-time trading intelligence layer, fusing onchain and offchain signals into actionable interfaces
• Build integrations with external services (Telegram, bots, alerting engines) to power novel product experiences
• Ship fast and often — we deploy product daily and treat working code as the ultimate source of truth
• Collaborate directly with founders and a small team of senior engineers in a high-bandwidth, fast feedback loop
• Engage with early users — from CT influencers to alpha groups — and shape features around real workflows
• Take ownership over what you build, with freedom to make autonomous decisions and move without bureaucracy

Our Tech Stack

Tech Stack: Nest.js, Solana, Redis, Postgresql, Typescript, Nodejs, Materialize, gRPC, Drizzle, Websocket, Google Cloud Platform, Terraform

You Might Be a Fit If You

• Have full-stack experience, ideally in performance-sensitive environments (e.g., crypto, fintech, gaming, real-time apps)
• Thrive in fast-paced, product-centric orgs where speed, autonomy, and ownership are the norm
• Can move independently but also communicate clearly in async workflows
• Care deeply about craft, clean abstractions, and performance
• Have strong user empathy and can translate real behavior into real product
• Have understanding of crypto and trading — and care about the details of how and why traders behave the way they do
• Want to work with other A-players — people who think like founders and ship like it

Why Join Us

• Work with a passionate team that is obsessed over product, velocity, and craft
• Ship real infrastructure that’s used by traders and degens daily — the kind of users who demand speed, precision, and performance
• Leave your mark on a product that could reshape how crypto trading is understood — not just features, but the foundation of how people will trade in the social-first, memetic era of DeFi
• It’s all greenfield — no legacy baggage, no bureaucratic blockers, just you, a fast team, and the freedom to build what you think should exist
• We’re backed by top investors and Alliance DAO, with deep ties to the best minds in DeFi
• Total flexibility — async, remote, and built for real builders who want to own their time and output
• You won’t be another cog. You’ll be a core part of shaping the next dominant trading platform

Apply Now:

As our front-end developer, you will be responsible for building the ‘client-side’ of our web applications. You should be able to translate our company and user needs into functional and appealing interactive applications that meet high development standards. In this role, you will work closely with a group of talented product managers, UX designers, and other engineers to build the next generation of staking products. Your work will help with securing a wide range of blockchain networks and contribute to the bedrock of decentralization.

What will you do?

• Implement responsive UIs and web apps that work on desktop, mobile, and other popular devices
• Translate design prototypes to working code that are performant and cross-browser compatible
• Build great products that are beautiful, simple, and delightful
• Integrate front end apps with various crypto wallets
• Continuously iterate and improve using direct user feedbacks and best industry practices
• Proactively make suggestions for improving our products and internal processes

What are the requirements?

• You are a top-notch front end developer, with a passion for blockchain
• You have extensive experience with front-end design and client-side web applications
• You possess a track record of launching great products
• You have good taste in design and UX. An obsession with quality and attention to the little things
• You have a strong understanding of JavaScript fundamentals, modern tooling, and ecosystem
• You are familiar with React

What will be great to have?

• You are familiar with common web3 libraries such as ethers.js or web3.js
• You are passionate about blockchain technology and a decentralized future
• You are contributing to the open-source community
• You feel comfortable working in a startup environment

Why are we awesome you ask?

We are truly at the forefront of the crypto ecosystem as maintainers of the infrastructure layer of blockchain networks! We practice the crypto team mentality by assembling a truly global and diverse team.

We collectively represent more than 12 different countries and are united in a single mission: building out the future of decentralization. Crypto is here to stay, having introduced novel ideas such as DeFi, NFTs and DAOs. At the core of all this are teams like us working relentlessly to build the necessary tools and applications that help run and secure blockchains.

Here are some other reasons you should join us:

• We have employees from over 10 countries across the globe, and you will be able to meet interesting people from different backgrounds and cultures. Distributed and remote work is baked into our culture.
• We are one of the top staking service providers with over $3B of assets staked across our validators. We actively explore and develop new products related to staking. You will work on high-impact engineering projects building exciting new products in a startup environment.
• We have a capable and passionate team. You will find teammates who are power DeFi users, intense NFT collectors, Bitcoin & Ethereum knowledge nerds, etc. You can learn and debate everything on crypto with our teammates.
• We are not backed by VC funding, and we are already profitable. Our financial independence means that we can make decisions independent of VCs, and we prioritize our ideals of decentralization, user sovereignty, and user privacy over simply making a profit. It also means that, unlike most other startups, stakefish can provide you with a stable low-risk employment opportunity without fundraising concerns.

Apply Now:

About Symbiotic

At Symbiotic, we are building a permissionless shared security primitive that empowers network builders to shape and personalise their unique restaking implementation. Our goal is to minimise risks while maximising freedom for all you wonderful builders of crypto infrastructure networks. We have a robust developer-centric proposition and we can’t wait to share it with everyone.

You can find more information about what we’re building and how we’re doing it in our docs.

Our People

We’re a tight-knit team of experienced individuals at the forefront of crypto infrastructure. Our backgrounds range from security auditing and smart contract development to node operation, and we’re supported by Paradigm and CyberFund.

We’re on the hunt for talented professionals to join our mission and strengthen our awesome team.

The Role

We are currently searching for a Senior Golang Engineer who will play a pivotal role in development of the off-chain part of the project.

What you’ll do

• Participate in all phases of backend development, including requirements analysis, software design, implementation, documentation, and unit testing.
• Communicate effectively with the team and company partners.
• Integrate new features into the existing codebase.
• Contribute to the estimation, planning, and execution of projects, features, and integrations.
• Review code written by other team members.

Who you are

• Experienced in building web applications with Golang and using Goroutines for concurrency
• Comfortable working with PostgreSQL via the pq library
• Skilled in both relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases
• Able to design and optimize scalable database schemas
• Proficient with Docker and familiar with GitHub CI/CD and basic Kubernetes
• Confident using Git for version control (branching, merging, pull requests)
• Writes solid unit and integration tests using Go or similar frameworks
• Understands and applies web security best practices
• Organized and collaborative, with experience using tools like ClickUp for project Management

🔥 🚀 We build the next level onramping toolbox for fiat-to-crypto transactions.

We are a fast-paced scale-up in the Netherlands, enabling access to web3 by bridging the world of Fiat Currencies (Euro, Dollars, etc.) with the world of Cryptocurrencies.

We provide an embeddable widget and API for crypto-native wallets to allow their users to buy cryptocurrencies globally, with over 130 payment methods. 

Our tech is used by Coinbase, Exodus, Opera browser and hundreds of other platforms for their 'fiat onramping' stack. By partnering with the best fiat-to-crypto payment gateways and presenting them in a single plugin their users can then buy crypto easily in-platform when needed. This is one of the most important intersections for web3/meta.

We are looking for a Senior Fullstack Engineer with a keen interest in the development of modern web platforms, as well as the ambition for personal growth and innovation. As part of a cross-functional team, you’ll be taking a lead on some of the most important and core parts of our platform.

About You and Job Responsibilities:

You’re pragmatic, learn quickly, and have a proven track record of experience. You communicate well and enjoy working in a startup team. Above all, you’re curious about the world and passionate about what you do. The thought of working on one of the hottest platforms that bridges the traditional financial world with the world of cryptocurrencies genuinely excites you.

As a fullstack engineer, you're passionate about building high-quality scalable applications end-to-end. Most likely you have stronger engineering background in either frontend or backend. Yet you can still be productive in both while possessing expertise in one or more common server-side programming languages (such as Java, Golang, Python, C#, JavaScript/Node, etc).

On the frontend side, you are capable of developing web applications in TypeScript (or JavaScript) and dealing with HTML/CSS. You have worked with at least one of the popular frontend frameworks (such as React, Angular, or Vue.js), and build tools (like grunt, gulp, bower, npm, or webpack).

And when it comes to the backend, you have prior experience in building data-intensive applications and working knowledge of database modeling and design. You feel comfortable when dealing with message queues, streams, caching layers, and REST APIs, as well as likely have some experience integrating with external APIs too.

On top of all that, you're familiar with version control workflows, as well as have a good understanding of security and best practices for developing secure applications (e.g., the “Twelve-Factor App” principles sound to you at least familiar and fairly logical). Automated testing and testability are not an afterthought for you either.

Our tech stack:

• Client-side: TypeScript / React / SCSS

• Server-side: TypeScript / NodeJS / AWS Lambda (Serverless) / DynamoDB / Snowflake

We offer:

Onramper is a pre-SeriesA startup going through a stage of tremendous growth. As such, you have an opportunity to help build a unicorn with a close-knit talented team, while enjoying wide autonomy, ownership, and responsibilities over the products and solutions you will be working on.

Benefits & Perks:

• Competitive compensation
• Become a part-owner! We offer equity as part of your compensation package
• Top-notch MacBook Pro and other necessary gear
• Awesome office in the heart of Amsterdam. We don’t have a mandatory work-from-office policy, being remote-first. Yet you are always welcome to enjoy its facilities
• Team events 
• Thursday drinks (optional) and intra-team table tennis championship
• An international team with diverse nationalities/backgrounds

Location:

While we have a preference for those that can join our office in Amsterdam, we're open to applicants from countries in timezones ranging from CEST to UTC+4. Longer term, there's possibilities of Visa Sponsorship.

Apply Now:

Are you looking to be part of an early-stage venture and have proven experience in web3 content creation?

Location: Remote. Your team is based in Europe, India, and Canada.

Working Language: English

About the project

The #1 Crypto rewards platform where daily rewards meet smart investing.

Klink is a leading crypto wealth creation platform that innovatively combines quest-based task rewards with strategic investing opportunities on its multi-service platform. Klink provides a unique opportunity for its users to earn cryptocurrencies starting from $0 of personal investment and has already partnered with some of the leading companies in web3.

The company is backed by top-tier VCs in the US & Asia.

Tasks

We are now looking for an ambitious Fullstack Engineer to join the team. You will be joining a team of 20 (12 with technical background) with a live product with over 400,000 users already. As you work on building an innovative solution competing with products on a global scale, you will always be up to date on all the latest technologies and best practices, especially regarding the web3 space.

You will:

• Collaborate on the development of highly scalable Node.js products hosted on cloud-based infrastructure, facilitating access to DeFi opportunities for CeFi users.
• Construct and maintain internal and external RESTful APIs, ensuring swift and seamless updates to our products.
• Develop diverse platforms, optimizing for high throughput and faultlessness in execution.
• Integrate external providers from the FinTech and Blockchain industry to enhance our product offerings.
• Engage in regular communication with the technical lead and the entire team to discuss solutions and innovations.
• Actively participate in code reviews to uphold code quality, maintainability, and adherence to best practices.

Requirements

We do not focus on the time you have spent sitting in the lecture halls of this world but we want to understand what makes you feel comfortable, extraordinarily motivated and suitable to take over this position. We are looking for a team member who feels comfortable working remotely and in English in an international environment with a self-driven “Get stuff done” mindset.

• Experience in serverless architecture and microservices.
• Proven understanding of Blockchain and Web3 solutions.
• Proficiency in Javascript frameworks, with a focus on Typescript (Nest.js, Next.js, Node.js).
• Strong MVP-focused coding skills in any modern programming language.
• Solid understanding of cloud solutions, specifically Amazon Web Services (AWS).
• Good knowledge of data structures, algorithms, and relational databases.
• Familiarity with security best practices in cloud environments.
• Full-stack development experience with a strong proficiency in React.js, Next.js, and NestJS. Expertise in building dynamic, scalable, and high-performance web applications, ensuring seamless integration between front-end and back-end technologies for optimized user experiences and efficient server-side rendering.

Benefits

• Join at an early stage and be involved in decisions that shape the company’s future and the opportunity to build your own success story
• You will have a lot of autonomy and freedom in your role to innovate, test and fail
• Take a trip with an international team of highly skilled individuals who will always support you on this journey

If you want to know more about this opportunity please complete this application with your most recent work profile and we will get back to you ASAP.

We are excited to meet you!

Apply Now:

Today, more than 20 industries are already being positively shaped by this next generation of apps built on the peaq network. This is an opportunity to join a team of performance-driven entrepreneurs, engineers, and creatives, on a mission to unlock the Age of Abundance.

We’re looking for a skilled and detail-oriented Full Stack Developer to join our tech team and help build products that meet the highest quality standards and contribute to an exceptional user experience.

Responsibilities

• Develop and maintain Web3 applications using Next.js (frontend) and Node.js (backend).

• Build decentralized applications (dApps) that integrate with smart contracts.

• Work with Ethereum, Polygon, and other blockchain networks to interact with smart contracts using Web3.js, Ethers.js, or Viem.

• Implement and integrate ERC-20, ERC-721 (NFTs), and ERC-1155 token standards.

• Optimize frontend and backend performance for scalability, security, and usability.

• Build robust APIs and services using RESTful APIs and GraphQL.

• Collaborate with blockchain engineers, designers, and product teams to create seamless user experiences.

• Write clean, modular, and well-documented code following SOLID principles and Web3 best practices.

• Stay updated with the latest trends in Web3, blockchain development, and smart contract integration.

Basic Qualifications & Requirements

• 3+ years of experience as a Full Stack Developer.

• Proven experience working with JavaScript & TypeScript.

• Some experience working with Next.js, React.js, and Node.js for full stack development.

• Hands-on experience with blockchain and Web3 development.

• Proficiency with Web3.js, Ethers.js, or Viem to interact with smart contracts.

• Understanding of Ethereum Virtual Machine (EVM), Solidity, and smart contract development.

• Experience working with ERC-20 tokens, NFTs (ERC-721, ERC-1155), and DeFi protocols.

• Backend experience with Express.js, Nest.js, or similar frameworks.

• Familiarity with IPFS, The Graph, Moralis, or Alchemy for blockchain data access.

• Strong understanding of security best practices in Web3 applications.

• Experience with databases such as PostgreSQL, MongoDB, or Firebase.

• Version control with Git/GitHub and CI/CD pipelines.

Preferred Skills & Experience

• Experience with Solidity and smart contract development.

• Familiarity with Layer 2 solutions (Arbitrum, Optimism, zkSync, etc.).

• Knowledge of DeFi, DAOs, or NFT marketplaces.

• Understanding of decentralized storage solutions (IPFS, Arweave, Filecoin).

• Experience working with Python for blockchain data processing.

• Cloud services expertise (AWS, GCP, Azure).

Benefits

• Remote first. You’ll be joining a team working from all over the world.

• Flexible working arrangements. Create your own journey with flexible working schedules and locations.

• The opportunity to build and contribute to high-impact projects in a new industry that will positively shape the lives of hundreds of millions of people.

• High growth potential. Room to grow professionally, while learning new skills and working at the cutting edge of the decentralized Machine Economy.

• A warm and open culture at an international organization with team members from all four corners of the globe.

• An environment that values autonomy, team spirit and open communication.

We look forward to building the future with you.

Apply Now: