Senior Backend Engineer - Intents API
The Senior Backend Engineer will lead the development and scaling of LI.FI's core off-chain coordination service (Intents - Order Server), which manages the entire Intent lifecycle. Key responsibilities include designing high-throughput, low-latency APIs using TypeScript/NestJS, developing rigorous security and validation logic, and optimizing real-time data distribution infrastructure. This critical infrastructure role requires 5+ years of backend experience and deep expertise in TypeScript/Node.js and blockchain security primitives to ensure a robust, trustless cross-chain experience.
Senior Developer - Platform And Infrastructure
Arctic Wolf is seeking a Senior Developer - Platform and Infrastructure to enable development teams by designing, implementing, and supporting systems, tools, and practices for software delivery. This role focuses on enhancing the developer experience and evolving the internal developer platform and build/deployment infrastructure. The successful candidate will contribute to a company committed to ending cyber risk and shaping the future of security operations.
Senior Backend Application Engineer - Product & Platform
The Senior Backend Application Engineer will be responsible for designing and scaling high-performance web services and ETL architecture to handle high transaction throughput. Key responsibilities include architecting robust, fault-tolerant systems, driving performance improvements, and developing new platform features used by critical global organizations. This role involves close collaboration with engineering, product management, and designers to ensure alignment and maintain high engineering standards.
Senior Backend Application Engineer - AI
Manifest is hiring a Senior Backend Engineer - AI to lead the design and scaling of backend services and data pipelines that support AI/ML workflows and intelligent automation. Key responsibilities include architecting AI-native infrastructure, bringing machine learning models into production at scale, and designing high-throughput systems for intelligent APIs. Candidates must possess 8+ years of backend experience, proven success scaling distributed systems, and deep understanding of data pipelines and API design.
Full-stack Engineer
The Full-Stack Engineer will design and implement scalable architecture by turning product ideas into reality, focusing on building responsive, accessible, and performant frontend experiences. Key responsibilities include working full stack to design APIs, integrating data pipelines, instrumenting features with telemetry, and contributing to engineering excellence through code reviews and documentation. The role involves constant evaluation of emerging technologies to deliver cost-effective solutions that increase efficiency and reliability.
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Senior Software Engineer - Tools And Infrastructure
The Senior Software Engineer for Internal Tools & Infrastructure will be responsible for developing software infrastructure, developer tooling, and data processing capabilities at Radiant. Key responsibilities include hands-on development of internal platforms for real-time monitoring and Digital Twin visualizations, building CI/CD pipelines, and designing integration platforms for seamless data flow across engineering systems. This deeply technical role supports the design and iteration of mass-produced nuclear reactor designs in a highly interdisciplinary environment.
Senior Software Engineer (austin, Tx)
LibLab is seeking Senior Software Engineers to build core internet infrastructure. Responsibilities include designing, developing, and maintaining software primarily using TypeScript, collaborating cross-functionally, troubleshooting complex issues, and mentoring other engineers. Candidates should have 5+ years of experience, preferably in a startup, and proficiency in multiple languages including TypeScript.
Senior Software Engineer, Atlas Clusters Security
The Senior Software Engineer will join the Atlas Clusters Organization, responsible for building MongoDB Atlas, their fastest-growing database-as-a-service product. Key responsibilities include building and designing new features, leading complex technical projects related to cluster networking and data encryption, and collaborating with product/design teams. Candidates must have at least 5 years of experience developing large-scale, distributed backend systems in a compiled language.
Senior Android Engineer
The Senior Android Engineer will be responsible for architecting, building, testing, and deploying real-time, map-based user interface applications for controlling Electronic Warfare (EW) assets through the Android Tactical Assault Kitâs (ATAK) plugin ecosystem. Key activities include defining network communication APIs and helping shape foundational software architectures while working closely with cross-functional teams and end-users. This role requires proficiency in modern Android technologies and the ability to iterate quickly based on feedback to ensure systems are scalable and reliable.
Senior Site Reliability Engineer
The Senior Site Reliability Engineer at MoonPay will be responsible for providing a resilient, secure, and production-ready platform, focusing on increasing the resiliency of the current PaaS solution in the short term through IaC maintenance and monitoring implementation. In the medium to long term, the role involves implementing new technologies on Kubernetes, developing automated reliability solutions, and owning deployment pipelines. The engineer will work alongside engineering functions to support faster and safer software delivery in a company focused on democratizing the decentralized economy.
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Senior DevSecOps Engineer
The Senior DevSecOps Engineer will join the SG2 Team to manage Ethereum infrastructure at scale, focusing on strengthening security posture by leading security-focused DevOps initiatives, primarily using Kubernetes and HashiCorp Vault. Key responsibilities include designing secure CI/CD pipelines, scaling production infrastructure, driving collaboration between DevOps and Security, and participating in on-call rotations to ensure system reliability.
Senior Software Engineer
The Senior Software Engineer will be responsible for designing, writing, and delivering software to enhance Cloudflare's Internal and External platforms, focusing on improving reliability and velocity through automation of highly distributed systems. Key duties include building services and APIs to maximize availability and performance, while participating in knowledge sharing and introducing cutting-edge technologies. This systems reliability engineering role requires a strong focus on frontend systems, including expertise in React, TypeScript, and modern testing frameworks.
Security Engineer
The Security Engineer will be responsible for securing the infrastructure where billions of AI agents execute untrusted code daily, focusing on maintaining sub-200ms performance standards. Key tasks involve building defense-in-depth security for Firecracker microVM infrastructure and implementing real-time threat detection across sandboxes. This role requires deep expertise in systems security, Linux primitives, and experience securing distributed systems at massive scale.
Platform Engineer
The Platform Engineer will design and build the E2B backend and core infrastructure for running AI software, focusing on performance and optimization. Key responsibilities include working with VM hypervisors, developing runtimes/sandboxes for LLMs, and solving infrastructure challenges at scale. This role requires significant experience in building distributed systems and deep knowledge of Linux administration.
Senior Full-Stack Node Developer
Mitratech is seeking a Mexico-based Senior Full-stack Software Engineer to architect solutions and contribute high-quality, well-tested software for their learning management SaaS products. Key responsibilities include writing production-ready code, participating in an on-call rotation, writing secure code, and leading sprint planning activities within an agile model. Candidates must possess a minimum of 5 years of experience, with proficiency in Node.js being mandatory.
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Senior Data Engineer (solana)
The Senior Data Engineer will be responsible for leading the creation and execution of data models and strategies feeding Blockworks' products. Key responsibilities include owning data sourcing pipelines, architecting data warehousing, and implementing ETL solutions, often involving accessing blockchain nodes. This role requires technical leadership and cross-functional collaboration to improve data workflows and drive operational efficiency.
Product Manager, Agent Development
The Product Manager, Agent Development will be responsible for partnering with engineers and customers to build and ship enterprise-grade AI agents handling high volumes of customer conversations. Key responsibilities include engaging with customers to assess requirements, developing virtual agents to meet business needs, and shaping the product roadmap based on customer feedback. The role requires 5-7+ years of experience in highly technical product development and the ability to communicate technical concepts to diverse audiences.
Software Engineer- SRE
The Site Reliability Engineer at OnePay will ensure the stability, scalability, and security of financial product systems by driving reliability practices across infrastructure and platform teams. Key responsibilities include designing and maintaining scalable infrastructure, evolving the observability stack, developing automation/monitoring, and leading postmortems to improve resiliency. This role requires 5+ years of experience with building reliable distributed systems and operational experience with observability tooling.
Senior Software Engineer, Safety
The Senior Software Engineer will join the Safety Applications team to build cutting-edge, AI-powered coaching products for fleet management, focusing on driver safety solutions across web, mobile, and API surfaces. Responsibilities include owning the success of full-stack solutions through architecture, building, and testing, while collaborating closely with product, design, and ML/AI engineering teams. The role requires solving complex problems and contributing to core architecture while ensuring the operational health of production systems at scale.
Senior Infrastructure Engineer
The Senior Infrastructure Engineer will architect distributed systems crucial for scaling AI-powered phone conversations, focusing on real-time voice processing and ML inference serving. Key responsibilities include designing scalable Kubernetes architectures, building ML infrastructure, and ensuring high reliability and security across enterprise telephony integrations. This role requires deep expertise in building and scaling distributed systems, anticipating exponential call volume growth.