Senior Site Reliability Engineer

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Open Systems

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 1990

🔒 Cybersecurity

📡 Telecommunications

🤝 B2B

💰 $1M Venture Round - Open Systems on 2000-07

Cybersecurity • Telecommunications • B2B

Open Systems is a managed security and networking provider that delivers a native Managed SASE (Secure Access Service Edge) platform combining SD-WAN, SSE (Security Service Edge), and global connectivity with 24x7 NOC/SOC operations. The company emphasizes high availability and tight SLAs, proactive incident detection and escalation, Level‑3 engineering support, and an AI operator (Lucy) to automate network and security operations. Open Systems targets enterprise customers across industries (manufacturing, financial services, healthcare, etc. ) and positions itself as a B2B managed cybersecurity and networking partner.

📋 Description

• Building Operational Automation: Design, build, and evolve the automation framework and tooling that powers the MC platform — primarily in Golang — with a strong focus on maintainability, scalability, and reliability. • Developing Self-Service APIs: Build and maintain the service APIs and self-service operational tooling of the MC platform that enable customers and teams to safely and efficiently operate services in production without manual intervention. • Applying Site Reliability Engineering (SRE) Principles: Define, implement, and continuously improve Service Level Indicators (SLIs), Service Level Objectives (SLOs), error budgets, and SLA measurements so that reliability is measurable and actionable across the MC platform and the services it operates. • Owning Reliability and Operations Initiatives: Take ownership of reliability, automation, and Mission Control projects, driving them independently from problem identification through implementation and long-term operation. • Collaborating with AI Engineering: Work closely with our AI team and tooling, integrating AI-assisted capabilities into our automation and operational workflows. • Incident Response and Learning: Participate in incident response and the on-call rotation, leading root cause analysis and driving sustainable corrective and preventive actions. • Lead midsize to large automation and reliability initiatives, from early concept and design through production deployment and ongoing operations.

🎯 Requirements

• Strong software engineering background, ideally with production-grade Go (Golang) experience — proficiency in another modern language is fine if you are a quick learner and willing to adapt, as Go is our primary language. • Solid understanding of distributed systems and scalable architecture. • Proven experience designing, building, and operating services and their APIs (e.g. REST, gRPC) in production. • Experience operating production systems, including incident response, on-call, and root cause analysis. • Experience with SRE, DevOps, platform engineering, or reliability-focused roles. • Hands-on experience with infrastructure and operations tooling, such as: Kubernetes Terraform / Infrastructure as Code GitOps principles and CI/CD tooling Prometheus, Loki, Tempo, and modern observability stacks. • Major cloud platforms (AWS, Azure, GCP). • Knowledge of Linux system administration, networking concepts, and major Internet protocols (TCP/IP, IPsec, SSL , SSH, SMTP, HTTPS, DNS). • Ability to think in terms of systems, failure modes, and trade-offs. • Strong communication skills and the ability to build trust across engineering and operations teams. • A proactive mindset: you see problems, propose solutions, and take responsibility for delivering them. • University degree in Computer Science or similar educational level.

🏖️ Benefits

• Caring PASSIONATELY about keeping our customers safe – We’re dedicated to solving problems. Whatever it takes. • Thinking UNCONVENTIONALLY to stay ahead – The world never fails to surprise us. So let’s surprise it first. • Doing the hard work to make things SIMPLE – Craft and hone something that delights in its simplicity. • Working COLLABORATIVELY to build success – The power of the team will always make us faster and better. • Open Systems has been recognized as an outstanding place to work. • Surrounded by smart teams who enrich your experience and provide opportunities you will need to develop your skills and advance your career.