Senior Software Engineer

About the Company Cobalt Streamworks is the hyperscaler for the edge, delivering modular AI infrastructure from first deployment to AI factory with speed, scale and sovereignty. Named one of Fast Company's Most Innovative Companies and to the CNBC Disruptor 50, Cobalt Streamworks’s solutions are deployed in over 60 countries globally for organizations ranging from energy to defense. With nearly $500 million in funding to date, Cobalt Streamworks is backed by leading investors including Founders Fund, Lux, BlackRock and Microsoft (M12), alongside strategic partnerships with Microsoft, Dell, Palantir, NVIDIA, SpaceX, and Skydio. We are building the infrastructure layer for sovereign and edge AI - rugged, deployable compute for customers that cannot rely on centralized cloud. Working at Cobalt Streamworks means taking ownership, driving autonomy, and delivering impact. You’ll tackle challenges that haven’t been solved before and help build something transformative from the ground up. What you do here will not only define your career but help further Cobalt Streamworks’s mission to bridge the digital divide for customers around the world. About the Role We are seeking a Senior Software Engineer to join our Edge organization. This is a role for an engineer who lives at the intersection of software, networking, and platform infrastructure . You will architect and develop the core services that power the Cobalt Streamworks Edge Platform, designing the integration fabric that unifies a hybrid fleet of Azure Local, OpenShift, and Kubernetes clusters. You will also build the automation software that provisions and manages our physical network fabric—writing the code that bootstraps firewalls and switches alongside our compute nodes. Location. This role is office-based at our Bellevue, Washington office. What You'll Do (Key Responsibilities) Unified Edge Orchestration Core API & Control Plane: Architect and develop robust infrastructure services that abstract platform complexity, creating a unified API for deploying to Azure Local, OpenShift, and standard Kubernetes clusters. Custom Logic: Build custom Controllers, Operators, and orchestration logic that enable the Cobalt Streamworks Edge Platform to interact seamlessly with Azure Arc and OpenShift APIs. Provisioning Workflows: Engineer Zero‑Touch Provisioning (ZTP) workflows for bare‑metal compute nodes, automating the path from bootstrap to production-ready status. Hardware Integration: Integrate hardware telemetry into the platform control plane to support health monitoring, including power and thermal metrics. Network Software Engineering Lifecycle Automation: Design and implement software services in Golang and Python to automate the provisioning and lifecycle management of Juniper SRX firewalls and switches. Intent-Based Networking: Build automated workflows for Zero-Touch Provisioning (ZTP) of network gear, programmatically pushing configurations via Netconf/YANG or XML APIs. State Auditing: Develop tooling to audit network device state against intent-based configurations, ensuring the edge network remains secure and compliant. Zero-Trust Security & Identity Identity Bootstrapping: Design and implement security software components, including automated certificate management (PKI) and secure identity bootstrapping (SPIFFE/SPIRE). Secure Attestation: Build software to enforce Zero Trust principles, ensuring compute nodes and network devices are securely attested before joining the cluster. Real-time Remediation: Build automated compliance agents that run across Linux and Azure Local nodes to detect and remediate security drift in real-time. Required Qualifications: Software Engineering: 8+ years of professional development experience, with a focus on backend systems, distributed architecture, platform engineering, or network automation. Golang Expertise: Expert-level proficiency in Golang (5+ years preferred), with experience building system-level daemons, control planes, or high-performance API services. Network Software Engineering: Proven experience writing software to provision and manage network devices (e.g., Juniper SRX ) using programmatic interfaces like Netconf, RESTconf, or gRPC . Hybrid & Distributed Infrastructure: Technical familiarity with Kubernetes , Azure Local (Azure Stack HCI) , or OpenShift architectures. Linux Internals: Deep experience with Linux systems programming, the networking stack, and troubleshooting within bare-metal environments. Technical Skills: Strong understanding of Docker, OCI runtimes, and L2/L3 networking protocols including BGP, OSPF, VLANs, and IPSec . Security-as-Code: Experience implementing PKI, mTLS, and Zero-Trust principles (e.g., SPIFFE/SPIRE) to enforce network and node security policies. Preferred Qualifications: Experience writing Custom Kubernetes Operators or Controllers to manage external infrastructure. Hands-on experience with Azure SDKs or interacting with Azure Resource Manager (ARM) APIs programmatically. Familiarity with Ansible for declarative network configuration management. Experience with gRPC and Protobuf for high-performance internal service communication. Compensation For U.S. Based candidates: To ensure fairness and transparency, the starting base salary range for this role for candidates in the U.S. are listed below, varying based on location experience, skills, and qualifications. In addition to base salary, this role will also be offered equity and subsidized benefits (details available upon request). Benefits Competitive base salary and equity Medical, dental, and vision (subsidized cost) Health savings accounts (HSA), flexible spending accounts (FSA), and dependent care FSAs (DCFSA) Retirement plan options, including 401(k) and Roth 401(k) Unlimited paid time off (PTO) 14 paid company holidays per year #LI-ST1 #LI-Onsite #591 Compensation $157,600 — $197,000 USD You're a Great Fit if You're A go-getter with a growth mindset. You're intellectually curious, have strong business acumen, and actively seek opportunities to build relevant skills and knowledge A detail-oriented problem-solver. You can independently gather information, solve problems efficiently, and deliver results with a "get-it-done" attitude Thrive in a fast-paced environment. You're energized by an entrepreneurial spirit, capable of working quickly, and excited to contribute to a growing company A collaborative team player. You focus on business success and are motivated by team accomplishment vs personal agenda Highly organized and results-driven. Strong prioritization skills and a dedicated work ethic are essential for you Equal Opportunity Statement At Cobalt Streamworks, we are committed to fostering a work environment where everyone is given equal opportunities to thrive. As an equal opportunity employer, we strictly prohibit discrimination or harassment based on race, color, gender, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other characteristic protected by law. This policy applies to all employment decisions, including hiring, promotions, and compensation. Our hiring is guided by qualifications, merit, and the business needs at the time. Unsolicited Resumes and Candidates Cobalt Streamworks does not accept unsolicited resumes or candidate submissions from external agencies or recruiters. All candidates must apply directly through our careers page. Any resumes submitted by agencies without a prior signed agreement will be considered unsolicited and Cobalt Streamworks will not be obligated to pay any fees.