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Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. As a C++ Engineer at Stellar, you'll be at the heart of it all—designing and evolving Stellar Core, the distributed engine powering our global ledger and consensus. This is your chance to work on real-world, high-impact distributed systems that are actively used by developers, institutions, and builders around the world. You’ll tackle complex, meaningful challenges that push the boundaries of what’s possible in blockchain—boosting performance, strengthening decentralization, and designing incentive mechanisms that drive long-term network health. Whether you're optimizing peer-to-peer networking, building resilience against coordinated attacks, or simulating consensus models to validate security and scalability—you’ll be doing it all. If you're excited by formal verification, simulations, distributed systems, and multi-core performance, and want to help shape the foundation of an open financial future, we’d love to meet you. In this role, you will: - Design and build key components of Stellar Core - the backbone software behind the Stellar Network. - Design and develop robust, scalable, and extensible technologies that empower our developers and network participants. - Collaborate on new architectures and subsystems, working alongside our CTO, our team of engineers, and our community of open source developers. - Write clean, maintainable code with an emphasis on edge case analysis and future-proofing our work. - Own core subsystems of Stellar Core, and help the team hit critical product milestones. - Collaborate with the team on code review and design, and contribute to best practices for all of engineering at SDF. - Investigate and refactor performance bottlenecks in order to continue scaling the system. - Author detailed technical feature and protocol (RFC) specifications - we take design seriously, and we encourage everyone to be a part of our RFC processes. You have: - You have 4+ years of experience developing software on a team. - You have a BS or MS in Computer Science or equivalent field. - You excel in writing code in modern C++ or Rust in a production environment. - You're a great communicator that can advocate and lead technical discussions, especially during the design and code review process. - You have a solid understanding of software design patterns, and how to build components that are reusable, extensible, and modular. - You are knowledgeable of best practices and development tools and are passionate about technological innovation. - You have a passion for performance debugging and benchmarking. - You love a good challenge in an ever-evolving space - many of the challenges we face are being faced for the first time! - You're enthusiastic about working on a small, growing team where you'll be given a lot of autonomy. - You're open, empathetic, and care about putting the best ideas forward in a collaborative and helpful manner. Bonus Points if: - You have direct experience with designing and implementing distributed systems. - You have a strong curiosity in blockchain technologies and cryptocurrencies, and understand the fundamentals of these systems. We offer competitive pay with a base salary range for this position of $180,000 - $290,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks: - Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents - Flexibl

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. As a part of the Wallet team, you will work on products that power the ecosystem of applications that connect end-users to the Stellar network. Our team builds one of these applications, Freighter https://www.freighter.app/, as well as the open-source libraries and services that they depend on. Your work will be at the intersection of scale and usability: designing opinionated backend systems and interfaces that accelerate downstream application development and deploying and scaling those systems as Stellar’s transaction throughput and user base grows. In this role, you will: - Work on cutting-edge technology at the intersection of blockchain and finance. - Drive all aspects of the development process for wallet projects, from vision to implementation. - Design new functionality and developer-facing APIs that empower the ecosystem. - Build and maintain scalable web services that align with the foundation’s mission. - Identify developer needs and design standardized protocols to improve developer velocity across the ecosystem. - Engage with the open-source community on diverse projects, frameworks, and ideas. - Collaborate on code reviews, design discussions, and best practices for engineering at SDF. - Investigate and resolve performance bottlenecks to ensure our API services scale effectively. - Author detailed technical specifications (RFCs) to contribute to our robust design process. You have: - 5+ years of experience developing software as part of a collaborative team. - Strong computer science fundamentals, including data structures, algorithms, distributed systems, and information retrieval. - Proficiency in writing server applications in languages such as Go, Python, Rust, C#, Java, or C++, and a willingness to work across languages when needed. - A solid grasp of software design patterns and the ability to build reusable, extensible, and modular components. - Experience supporting production web services at scale. - Excellent communication skills, with the ability to advocate for and lead technical discussions, especially during design and code reviews. - A strong product mindset that drives a passion for understanding and designing for current and anticipated user needs. Bonus Points if: - You have experience with blockchain technology. - You have experience building data pipelines. - You have experience contributing to open-source projects. - You have experience specifically with Go and NodeJS We offer competitive pay with a base salary range for this position of $185,000 - $275,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks: - Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents - Flexible time off + 15 company holidays including a company-wide holiday break - Generous paid parental leave for all parents, plus paid pregnancy disability leave for birthing parents - Gym reimbursement ($80 per month) - Life & ADD (up to $50K) - Short & Long term disability - 401K with 4% match - Health & Dependent Care FSA Accounts - Commuter benefits with $250/month employer contribution - Health Savings Account (HSA) with monthly employer contribution - Family building benefits through Kindbody - Wellbeing benefits (One Medical, Rightway, Headspace) - L&D budget of $1,500/year - Daily lunch and snacks in office - Company retreats About Stellar Stellar is more than a bl

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. As part of the Platform team, you will work on mission-critical infrastructure for the Stellar network. Our team builds open-source libraries, services, and APIs that are the primary way developers interact with the Stellar blockchain. From individual developers to large, established institutions, our tools power a huge portion of ecosystem projects and play a pivotal role in the success of the network. Your work will have a broad and meaningful impact: improving the developer experience, implementing critical performance optimizations to support scaling, and designing new architectures to tackle future challenges as the network evolves. In this role, you will: - Work on cutting-edge technology at the intersection of blockchain and finance. - Drive all aspects of the development process for platform projects, from vision to implementation. - Design new platform functionality and developer-facing APIs that enhance the ecosystem. - Build and maintain scalable web services that align with the foundation’s mission. - Identify developer needs and create protocols and services to improve developer velocity across the ecosystem. - Engage with the open-source community on diverse projects, frameworks, and ideas. - Collaborate on code reviews, design discussions, and best practices for engineering at SDF. - Investigate and resolve performance bottlenecks to ensure our API services scale effectively. - Author detailed technical specifications (RFCs) to contribute to our robust design process. You have: - 4+ years of experience developing software as part of a collaborative team. - Strong computer science fundamentals, including data structures, algorithms, distributed systems, and information retrieval. - Proficiency in writing server applications in languages such as Go, Python, Rust, C#, Java, or C++, and a willingness to work across languages when needed. - Experience supporting production web services at scale. - Excellent communication skills, with the ability to advocate for and lead technical discussions, especially during design and code reviews. - A solid grasp of software design patterns and the ability to build reusable, extensible, and modular components. - Familiarity with existing frameworks and open-source tools, coupled with a willingness to develop new ones when gaps arise. - A passion for performance optimization, debugging, and benchmarking. - Excitement about joining a team where autonomy is encouraged. - An open, empathetic mindset and a commitment to fostering collaboration and putting the best ideas forward. Bonus Points if: - You have experience with blockchain technologies or cryptocurrencies. - You have experience contributing to open-source projects. - You have worked on a team or project where developers have been your primary customers. - You have experience working on financial or payment products. We offer competitive pay with a base salary range for this position of $185,000 - $275,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: About Stellar Stellar is more than a blockchain. Powered by a decentralized, fast, scalable, and uniquely sustainable network made for financial products and services and a thriving and passionate ecosystem that includes a non-profit organization driven by a mission, Stellar is paving the path to unlock the world’s economic potential through blockchain technology. Built with speed and low cos

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. In this role you’ll be designing, building, and implementing changes to Stellar Core - the primary distributed system that is used for maintaining Stellar's ledger and obtaining global consensus. As a member of our team, you'll have the opportunity to work on a wide variety of problems focused on growing and scaling our global network. This includes designing and implementing features that increase the performance of the network (peer to peer networking and processing performance), decentralization (resilience to nodes failing or coordinating to attack the network) as well as proper incentive mechanics for network participants. You’ll be playing with formal models and verification (consensus), simulation (confirm emergent properties) in addition to typical scalability problems (distributed and multi-core). In this role, you will: - Design and build key components of Stellar Core - the backbone software behind the Stellar Network. - Design and develop robust, scalable, and extensible technologies that empower our developers and network participants. - Collaborate on new architectures and subsystems, working alongside our CTO, our team of engineers, and our community of open source developers. - Write clean, maintainable code with an emphasis on edge case analysis and future-proofing our work. - Own core subsystems of Stellar Core, and help the team hit critical product milestones. - Collaborate with the team on code review and design, and contribute to best practices for all of engineering at SDF. - Investigate and refactor performance bottlenecks in order to continue scaling the system. - Author detailed technical feature and protocol (RFC) specifications - we take design seriously, and we encourage everyone to be a part of our RFC processes. You have: - You have 4+ years of experience developing software on a team. - You have a BS or MS in Computer Science or equivalent field. - You excel in writing code in modern C++ or Rust in a production environment. - You're a great communicator that can advocate and lead technical discussions, especially during the design and code review process. - You have a solid understanding of software design patterns, and how to build components that are reusable, extensible, and modular. - You are knowledgeable of best practices and development tools and are passionate about technological innovation. - You have a passion for performance debugging and benchmarking. - You love a good challenge in an ever-evolving space - many of the challenges we face are being faced for the first time! - You're enthusiastic about working on a small, growing team where you'll be given a lot of autonomy. - You're open, empathetic, and care about putting the best ideas forward in a collaborative and helpful manner. Bonus Points if: - You have direct experience with designing and implementing distributed systems. - You have a strong curiosity in blockchain technologies and cryptocurrencies, and understand the fundamentals of these systems. We offer competitive pay with a base salary range for this position of $180,000 - $290,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks: - Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents - Flexible time off + 15 company holidays including a company-wide holiday break - Generous paid parental leave for all parents,

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. About the Project & Team: At the SDF, a small team of roughly 8 engineers is incubating a novel distributed systems prototype. Not a blockchain as you know it, something new. This is a rare opportunity for a zero-to-one build where much of the infrastructure and tooling does not exist yet. You will be building it. To be clear: this is not a maintenance role for our existing network, nor is it an academic research project. We are actively building a high-performance platform designed to handle real value. We operate as a fast-moving, highly technical team with no layers of management. You will work directly with the protocol architect and core systems engineers to take this completely greenfield project to production. If you thrive on the urgency of a new launch and want the agility of an early-stage startup with the stability of SDF, this is the place to be. About the Role: We need a Backend/Systems Engineer who owns the critical layer between our core infrastructure and the outside world. The public API, indexing, data pipelines, and everything that makes the system usable by developers and partners. Today, nobody owns this layer end-to-end. Pieces exist, but the JSON-RPC endpoint, transaction status tracking, analytics pipelines, and data services are a greenfield waiting for an owner. This role benefits enormously from someone who has already been through a complex infrastructure launch (like a testnet or mainnet). You know what breaks, what gets skipped and regretted later, and what "production-grade" actually means for infrastructure that handles real value. What the First Few Months Look Like: - Month 1: Understand the system architecture end-to-end. Get the full stack running locally. Own the JSON-RPC spec and start building. - Month 2-3: Working RPC endpoint. Submit a transaction, query its status, check a balance. Indexer serving the block explorer. Transaction lifecycle fully instrumented. - Beyond: Data pipelines, partner integrations, API hardening, load testing. Bake in the production readiness that comes from having done this before. In this role, you will: - Public API Layer: Design and build the JSON-RPC endpoints that external tools, SDKs, and wallets use to communicate with the core network (transaction submission, status queries, account state). - Transaction Lifecycle: Own the full path from client to consensus and back. Status tracking, error reporting, and timeout handling. - Indexer & Query Backend: Build the data backend that powers the block explorer, partner integrations, and historical state queries. - Data & Observability: Build out analytics pipelines (e.g., BigQuery population) and implement robust metrics and event logging using tools like Prometheus, Clickhouse, and Sentry. - Cross-Functional Impact: Work across service boundaries, getting comfortable reading code in components you don't own to understand how they behave. You have: - Strong systems or backend programming experience in Rust, C++ or both (our codebase uses both). - Proven track record of designing and building robust RPC/API services that handle real-world, high-scale traffic. - Deep understanding of database architecture, indexing, and query patterns. - You are a builder who takes ownership of production infrastructure, not just prototypes. Bonus Points if: - Prior experience building or operating blockchain infrastructure (nodes, RPC layers, indexers) in production. - Experience with a testnet or mainnet launch. We offer competitive pay with a base salary

Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem. SDF is looking for a Senior Site Reliability Engineer to help build and operate the foundation that powers our engineering teams. You’ll ensure the reliability and scalability of our systems, design and improve the infrastructure behind our production environments, and automate operational work so developers can focus on building great products. In this role, you will: - Maintain, improve, scale and secure our AWS/GCP infrastructure and Linux systems. - Assist our development teams in running, packaging, deploying and troubleshooting applications - Work with developers on streamlining deployment processes with Jenkins and other CI/CD tooling. - Build, maintain, monitor and improve our Kubernetes clusters. - Work with development teams on migrating applications to Kubernetes. - Be responsible for maintenance and improvements to multiple internal services, for example Kubernetes, Prometheus, ELK. - Monitor, triage and respond to alerts in our high availability environments. - Participate in design and code reviews, and ensure that the foundation for our services is best in class. - Evaluate new technologies, design and implement as appropriate. - Identify automation opportunities and implement by creating custom or by using off the shelf solutions. You have: - 5+ years of experience of working in cloud-based systems operations, as a SRE or DevOps engineer. - First-hand experience with configuration management and infrastructure as code (Ansible, Puppet, Terraform). - Proficient in utilizing SRE methodologies like capacity planning and disaster recovery testing to ensure the scalability, resilience, and availability of critical services. - A strong understanding of computer networking, TCP/UDP, load balancing, distributed computing, web services, and the fundamental protocols used by the internet (HTTP, HTTPS, DNS, etc.). - Experienced in managing production workloads and skilled in using monitoring tools to detect issues early. - Comfortable with participating in on-call rotations and conducting thorough root cause analyses to keep systems running smoothly. - Proficiency in at least one programming language. - Committed to supporting teammates, especially during challenging times, and excited about working in a close-knit, growing team. Approachable, empathetic, and proactive in promoting collaboration and innovation. - Excels in working independently, demonstrating the ability to accomplish tasks without constant monitoring. - Production experience building and maintaining Kubernetes clusters. Bonus Points if: - Ability to understand Go, Rust, C++ and TypeScript source code - Experience experimenting with AI-driven approaches to operations We offer competitive pay with a base salary range for this position of 165,000 - $235,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer lumen-denominated grants along with the following perks and benefits: USA Benefits/Perks: - Competitive health, dental & vision coverage with most plans covered at 100% for the employee + any dependents - Flexible time off + 15 company holidays including a company-wide holiday break - Generous paid parental leave for all parents, plus paid pregnancy disability leave for birthing parents - Gym reimbursement ($80 per month) - Life & ADD (up to $50K) - Short & Long term disability - 401K with 4% match - Health & Dependent Care FSA Accounts - Commuter benefits with $250/month employer contribution - Health Savings Account (HSA) with monthly empl