Senior Software Engineer - Backend - Growth Platform
The Senior Software Engineer will design and maintain internal tooling, services, and developer platforms for the Growth Platform team, enabling faster and more reliable shipping for Growth engineering teams. Key responsibilities include architecting and building SDKs, CLIs, APIs, and shared backend services, while also owning reliability and performance improvements. This role focuses on building developer experiences, reliability, and scalability multipliers for business impact.
Senior Software Engineer - Backend - Growth Platform
The Senior Software Engineer on the Growth Platform team will design and maintain internal tooling, services, and developer platforms to empower Growth teams to move faster and ship reliably. Key responsibilities include architecting and building SDKs, CLIs, APIs, and backend systems, as well as evolving scalable backend infrastructure. This role is focused on improving developer experience, reliability, and scalability for products serving millions globally.
Data Engineer - Staked
The Data Engineer at the Staked team (now part of Kraken Institutional) will play a crucial role in extracting and organizing data from various proof-of-stake blockchains. Key responsibilities include developing software for data collection and indexing, maintaining a reliable API for account histories, and tracking public blockchain sources. The role requires strong experience with Python and SQL to ensure high standards for data integrity for institutional staking solutions.
Data Engineer - Staked
The Data Engineer will join the Staked team (now part of Kraken Institutional) to extract and organize data from various blockchains, preparing it for analysis. Key responsibilities include developing software for data collection/indexing, maintaining reliable APIs for account histories, and tracking public blockchain sources. This role requires strong experience in Python, SQL, and software engineering principles to ensure high data integrity for institutional staking solutions.
Full-Stack Engineer - Custody
The Institutional Engineering Team is seeking an engineer to build secure, high-performance custody and settlement systems for institutional clients. Key responsibilities include developing backend microservices using TypeScript/Node.js, integrating with blockchain networks, and building event-driven systems with Kafka. This role requires strong expertise in secure system design, distributed architectures, and backend technologies.
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Principal Full-Stack Engineer, AI Platform & Agents
As a Principal Full Stack Engineer for AI Platform & Agents, you will develop a GenAI platform powering critical decisions in healthcare, legal, tax, and compliance industries. This remote-first role involves designing and implementing full-stack applications, AI agents, and platform components, while leading architectural decisions and mentoring engineers in a globally distributed team.
Senior Full-Stack Engineer, AI Platform & Agents
This Senior Full Stack Engineer, AI Platform & Agents role involves building a GenAI platform that enables rapid development and deployment of AI agents across healthcare, legal, tax, and compliance industries. The engineer will design and implement full-stack applications, AI agents, and platform components, directly contributing to impactful, scalable, and safe decision-making at a global scale.
Smart Contract Engineer
DoubleZero seeks a Smart Contract Engineer to develop novel smart contracts and software systems for the DoubleZero protocol, focusing on Solana/SVM and other chains. Key responsibilities include building secure code with thorough testing, understanding blockchain concepts, and developing complementary software components. Candidates should have 2+ years of smart contract experience, substantial Rust knowledge, and thrive in an early-stage, mission-driven environment.
Senior Full-Stack Engineer Unified Platform Solutions (remote)
Machinify is seeking a Staff or Senior-level Fullstack Engineer (backend leaning) to design and build scalable, reliable web application systems, contributing to both backend and frontend development of complex AI/ML-powered applications. Responsibilities include balancing customer features with technical debt cleanup and architecting systems that simplify labor-intensive processes. Candidates must bring 10+ years of experience across frontend/backend programming with expertise in Java, TypeScript, and JavaScript, and ideally Scala or Rust.
Product Engineer (nyc)
The Product Engineer will work directly with Tempo's design partners to build and deliver production-ready applications and integrations for moving money on-chain. This deeply technical, high-ownership role involves architecting and owning full-stack partner applications across frontend, backend, and on-chain components. Key responsibilities include collaborating across Product, Partnerships, and Engineering to deliver high-impact features and providing quick technical support and feedback from the field.
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Software Engineering Intern
The Software Engineering Intern at Sift will gain hands-on experience building and testing new product features impacting real customers, working alongside experienced mentors. Responsibilities include designing reliable systems for real-time data processing, participating in code reviews, and growing skills in distributed systems and data engineering. Candidates should be actively pursuing a STEM degree and eager to learn modern engineering practices.
Forward Deployed Engineer, Infrastructure
The Forward Deployed Engineer, Infrastructure, will maintain cloud, VPC, and on-premise deployments, bridging infrastructure capabilities with customer deployment challenges. Responsibilities include deploying resilient infrastructure solutions, partnering with customers on technical challenges, and implementing robust monitoring and logging systems. This role requires 3+ years of distributed systems experience and strong communication skills to act as a technical partner to customers.
Software Engineer, Full-Stack
Sift is seeking an early Software Engineer to help build and maintain full-stack features for their real-time observability platform, which originated from work on SpaceX projects. Responsibilities include building web application features, creating intuitive user interfaces for data exploration, and implementing efficient real-time data streaming APIs. Candidates should have 3+ years of experience with relevant modern web and backend technologies like React, NextJS, Go, and Rust.
Senior Software Engineer, Full-Stack
Sift is seeking a Senior Software Engineer to build and maintain full-stack features for their web application, focusing on complex telemetry data exploration and optimization. Responsibilities include creating intuitive UIs, implementing efficient APIs for real-time data streaming, and collaborating on service design. Candidates should have 8+ years of experience building production applications using technologies like React, NextJS, TypeScript, Go, Rust, and Python.
Full-Stack Engineer (san Francisco, Ca)
The Full Stack Engineer will be responsible for the end-to-end design and deployment of HYDRA’s user interface, focusing on building the core control plane features like link management and real-time dashboards. Key responsibilities include building a robust backend interface for telemetry and routing software, and experimenting with AI features for network configuration. The role requires translating ambiguous technical requirements into intuitive, low-code workflows for network configuration and monitoring.
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Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will help shape the future of email by building systems and infrastructure for Thunderbird using leading-edge technologies like JMAP. Key responsibilities include leading technical initiatives, designing and maintaining services in Python and Typescript, and optimizing email deliverability. This role requires 7+ years of software engineering experience, including significant hands-on work in web infrastructure, service architecture, or DevOps.
Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will help shape the future of email by building systems and infrastructure to power Thunderbird's evolution into a suite of privacy-respecting productivity tools. Key responsibilities include leading technical initiatives, influencing product vision based on user needs, and designing, building, and maintaining services in Python and Typescript. The role requires analyzing complex email delivery issues, optimizing infrastructure for performance, and supporting service stability through occasional on-call rotation.
Senior Software Engineer, Web Services
The Senior Software Engineer, Web Services will build systems and infrastructure powering Thunderbird and develop innovative web products using leading-edge technologies like JMAP. Key responsibilities include leading technical initiatives, shaping product vision based on user needs, and designing, building, and maintaining services primarily in Python and Typescript. Candidates need significant experience in web infrastructure/service architecture, direct experience with email delivery, and the ability to own features from ambiguous requirements through to final delivery.
Senior Software Engineer
The company is seeking very senior backend software engineers to join the engineering team, focusing on building and scaling their stablecoin platform. Initial work involves onboarding to systems, shipping small features, and improving documentation. Over time, engineers will take ownership of services, lead medium-scope projects, and drive cross-service initiatives impacting technical direction and system reliability.
Backend Engineer Us & Canada
Stedi is seeking an experienced Backend Engineer to develop healthcare APIs and extend existing systems for their programmable healthcare clearinghouse product. The role involves designing and developing large-scale web applications using serverless technologies primarily on AWS, with application logic written mostly in Rust. The engineer will contribute to engineering excellence and help build the broadest commercial trading network.