backend

Senior Backend Engineer - Onramp

posted by: spj_bot

Backend Engineer - High-Throughput FinTech/Crypto Infrastructure

Location: New York City (Office)

Compensation: $250K - $300K

We are a high-growth software company contributing to one of the world's largest crypto social networks, moving fast and redefining what is possible in the FinTech and crypto space. We are seeking an elite Backend Engineer to design and scale the complex systems powering seamless fiat-to-crypto flows, real-time risk decisions, and rock-solid financial records for a 24/7 system.

You will own mission-critical systems and services at the core of our platform, working on high-throughput, low-latency distributed systems. This role requires deep technical expertise at the intersection of payments, compliance, risk, and on-chain infrastructure.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Senior Backend Engineer (Kotlin - Crypto)

posted by: spj_bot

Senior/Lead Backend Engineer - FinTech & Crypto Innovation

Location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

Compensation: $120K - $140K

We are looking for a Senior/Lead Backend Engineer obsessed with good architecture, efficiency, and resilience to help us revolutionize the FinTech and crypto industry. This role is for a pillar of our engineering team who thrives in a fast-paced environment, solving complex banking and crypto problems with speed and elegant, resilient solutions.

You will work directly with the product team, owning the design, development, and deployment of mission-critical services that power our next-generation financial platform. Your focus will be on building scalable, robust backend systems that handle core banking functions, blockchain integrations, and serve data to our mobile and web applications.

What You'll Be Working On:

Job Skills

View the job post & apply
Login/Signup

Senior Backend Engineer

posted by: spj_bot

Protocol Backend Engineer - Stablecoin Platform

Location: Remote - Preference for US but would consider Europe if candidates can work on a slight overlap with EST working hours

Compensation: $180K - $250K

We are a pioneering stablecoin platform that provides developers with a superior digital-dollar building block ($\$M$) to extend and create customized stablecoins in minutes. Our platform empowers businesses to monetize their digital dollar use cases while maintaining control over their money tech stack. We are seeking an experienced Protocol Backend Engineer to join our growing team and enhance our stablecoin ecosystem and core projects.

You will be instrumental in designing and deploying high-availability, secure solutions for on-chain finance and cross-chain liquidity management. This role requires strong engineering leadership, technical mastery of backend systems, and an understanding of decentralized financial logic. You will also mentor mid-level engineers and drive a culture of excellence and compliance.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Front-End Engineer

posted by: spj_bot

Front-End Engineer - Institutional DeFi Liquidity Layer

Location: Remote - US - Would consider South America & Canada (Preference for onsite/hybrid in LA)

Compensation: $ Competitive

We are an on-chain financial infrastructure company building the liquidity layer for the tokenized economy, backed by leading investors. Our flagship protocol connects tokenized assets and high-quality stablecoins to enable 24/7, real-time, compliant capital movement across blockchains. We are seeking a Front-End Engineer to design and build the user experiences that power institutional DeFi, working with production partners including major financial institutions.

You will lead the development of user interfaces for our protocol's web and mobile products and dashboards, spanning swaps, liquidity management, and analytics. This role requires translating complex blockchain and financial interactions into beautiful, intuitive, high-performance interfaces for sophisticated financial users. You'll join a small, high-velocity team, shipping code daily and defining the future of on-chain institutional finance.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Founding Engineer

posted by: spj_bot

Founding Engineer - High-Growth DeFi Mobile Trading App

Location: Remote - US Remote (Must be able to travel to NYC 2 weeks at a time, every 1-2 months for in person collaboration)

Compensation: $200K - $300K

We are a rapidly growing mobile app—the “Robinhood for DeFi”—that allows anyone to trade cryptocurrencies on-chain through a user-friendly interface. Since our launch, we have attracted 1.5+ million users. We are a lean, mission-driven team dedicated to making decentralized finance open and accessible to the world. We are looking for a Founding Engineer to assume a hands-on role in designing, building, and maintaining the production features that power our platform.

You will have end-to-end feature ownership across both our mobile and backend systems, shaping the core user experience for millions of users. This role demands rapid iteration, a security-first mindset, and the ability to design robust, scalable features. You will be a decision-maker and implementer, directly influencing the technical direction of the company.

What You'll Be Doing:

Job Skills

View the job post & apply
Login/Signup

Senior Software Engineer

posted by: spj_bot

Senior Backend Engineer - High-Volume Fintech & Payments Platform

Location: Remote - Based in LATAM / EST /Europe

Compensation: $130K - $180K

We are a technology company building the next generation of money and financial products. We are seeking a Senior Backend Engineer to design and build the core backend systems that power our fintech and payments platform. This role requires deep technical expertise in high-scale transaction systems and strong product awareness to deliver reliable, secure, and impactful solutions.

You will be responsible for the full lifecycle of our backend services, focusing on architecting, building, and operating systems that handle high-volume financial transactions securely and reliably. You will act as a technical leader, driving feature delivery and raising the engineering bar across the team while ensuring our systems align with business priorities.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Senior Fullstack Engineer

posted by: spj_bot

Senior Fullstack Engineer - DeFi Trading & Yield Platform

Location: Remote - NYC or SF based candidates heavily preferred

Compensation: $150K - $175K

We are building the leading trading and yield platform for DeFi, founded by former industry leaders with deep expertise in algorithmic trading. Backed by top-tier institutional investors from both traditional finance and crypto, we are creating cutting-edge, crypto-native technology. We are seeking a Senior Fullstack Engineer excited to work on a complex backend managing billions of dollars in crypto transactions while delivering exceptional user experiences.

You will have the opportunity to build across the entire stack, integrating multiple DeFi protocols and connecting with various blockchains. This role demands full ownership of features, requiring you to balance implementation speed with long-term quality and scalability. You will be a key player in shaping our success by designing and building systems capable of high-throughput execution.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Senior Fullstack Engineer

posted by: spj_bot

Senior Fullstack Engineer - Web3 User Acquisition Platform

Location: Remote - US (EST Preferred)

Compensation: $150K - $200K

We are a leading web3 user acquisition platform that has powered user onboarding for over 500 protocols since 2021, facilitating over 500 million transactions and serving over 3 million users across 40+ chains. Our platform, which includes gamified activations and unique on-chain credentials, is infrastructure for major players across DeFi, gaming, AI, and NFT ecosystems. Backed by $21M in total funding, we are seeking a highly experienced Senior Fullstack Engineer to own end-to-end feature delivery across our core platform and new initiatives.

In this high-impact role, you will take full ownership of major product features from conception through deployment. You will be instrumental in driving architectural decisions for both frontend and backend systems, ensuring performance and scalability across our complex, multi-chain platform. You will collaborate directly with the Head of Product and Founders to shape product strategy, establish best practices, and mentor other engineers.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Senior Backend Engineer

posted by: spj_bot

Senior Backend Engineer - Decentralized Perpetual Exchange

Location: Remote - US or EU if willing to overlap 6+ hours with ET

Compensation: $180K - $300K

We are the largest decentralized perpetual exchange on a leading Ethereum Layer 2 solution, processing over $20 billion in cumulative trading volume. Our mission is to bring global markets on-chain, enabling leveraged trading of real-world assets (commodities, forex, indices, stocks) alongside crypto, all with full self-custody. Backed by top-tier investors, we are a small team scaling critical infrastructure handling billions in volume and are seeking an exceptional Senior Backend Engineer who deeply understands crypto infrastructure.

You will build and scale the high-reliability systems that power our exchange, directly impacting billions in trading volume. This role requires navigating the entire stack, from reading blockchain state and decoding oracle message signatures to building high-performance APIs and data pipelines. You will be comfortable working close to the protocol layer while owning critical infrastructure that processes thousands of trades daily.

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup

Protocol Lead

posted by: spj_bot

Protocol Lead - Rule Enforcement for Regulated Blockchains

Location: remote - north and South America and the EU

Compensation: $180K - $220K

We are building a platform that sets the standard for how regulated blockchain applications enforce transaction rules directly at the smart contract layer. Our system empowers teams to create modular, programmable policies (like AML/CFT checks or off-chain collateral requirements) enforced with cryptographic guarantees before a transaction executes on-chain. We are seeking a Protocol Lead to own the entire smart contract suite, driving robust, scalable risk management for real-world use cases.

As the Protocol Lead, you will have full ownership of the architecture, development, and maintenance of our core smart contract suite. You will be the team's blockchain subject matter expert, defining security best practices, managing audits, and building tooling for seamless integration. This role requires a balance of hands-on coding, security leadership, and cross-ecosystem research (EVM and non-EVM).

Key Responsibilities:

Job Skills

View the job post & apply
Login/Signup
Subscribe to backend

SPJ is not just a platform; it's a transformative force in the maritime sector. We reinvent job discovery and collaboration, leveraging cutting-edge AI to create a space where careers thrive and innovations set sail.

Featured Posts

Contact