Staff Software Engineer

Our Mission: 6sense's mission is to multiply what matters: growth, retention, and efficiency. We envision a future where companies, teams and people reach their full potential. Our People: People are the heart and soul of 6sense. We serve with passion and purpose. We live by our Being 6sense values of Win as One Team, Stay Curious, Do The Right Thing, Own the Outcome, and Create Belonging. Every 6sensor plays a part in defining the future of our industry-leading technology. 6sense is a place where difference-makers roll up their sleeves, take risks, act with integrity, and measure success by the value we create for our customers. We want 6sense to be the best chapter of your career. Role Summary We are building a next-generation Core Infrastructure platform focused on: • Zero-trust security and identity-based access • Multi-region and multi-account scalability (multi cloud in future) • Highly automated, self-service infrastructure • Reliable and observable systems at scale This role will own foundational infrastructure systems —networking, identity, compute platforms, and automation frameworks—that power all services. Core Areas of Ownership [1] Core Infrastructure & Cloud Platform • Design and evolve infrastructure on: • Amazon Web Services • Kubernetes • Build and scale: • Multi-region and multi-account architectures • Secure and scalable service connectivity (VPC, cross-account, cross-region) [2] Security & Zero Trust • Drive adoption of: • Identity-based access (eliminate shared credentials) • Implement: • Secrets management using HashiCorp Vault • Policy enforcement using Open Policy Agent • Design: • Secure service-to-service communication • Fine-grained IAM and access control systems [3] Infrastructure as Code & Automation • Build infrastructure using: • Terraform • Pulumi • Ansible • Create: • Reusable modules and abstractions • Fully automated provisioning workflows • Integrate with CI/CD: • GitHub Actions • Jenkins [4] Cluster & Infrastructure Lifecycle • Own lifecycle of: • Kubernetes clusters (e.g., EKS) • Databases (eg, rds/aurora/elastic cache. etc) • Automate: • Cluster upgrades and migrations • Node scaling and patching [5] Multi-Region & Migration Engineering • Design: • Region-agnostic infrastructure patterns • Enable: • Automated regions bootstrap and failover • Lead: • Migration initiatives (region, account, or cloud) [6] Observability & Reliability • Build and operate: • Metrics, logging, and tracing systems using: • Prometheus • Grafana • ELK stack • Datadog • Improve: • System reliability, alerting, and incident response [7 ] Governance & Standards • Define and enforce: • Resource tagging strategies • Data classification policies • Ensure: • Cost visibility and auditability [8] Developer Productivity & Platform • Build: • Self-service infrastructure workflows • Improve: • Developer experience through automation and tooling • Contribute to: • Internal platform evolution Responsibilities • Architect, build, and scale core infrastructure systems • Automate infrastructure lifecycle to minimize human intervention • Design secure connectivity across services, VPCs, accounts, and regions • Debug and resolve complex production issues across the stack • Write production-quality code, tools, and frameworks • Collaborate with engineering teams to standardize infrastructure usage Minimum Qualifications • 10+ years in a Software Engineering role or equivalent experience • 5+ years of experience in infrastructure engineering • Strong hands-on experience with: • Amazon Web Services • Kubernetes • Terraform or Pulumi • Strong understanding of: • Networking (VPC, routing, DNS, connectivity) • IAM and access control • Experience with: • Automating infrastructure workflows • High-availability and scalable systems • Proficiency in: • Python / Go / Bash Preferred Qualifications • Experience with: • Multi-region or multi-account architectures • Automating infrastructure migrations and upgrades (e.g., EKS upgrades) • Secrets management platforms (e.g., HashiCorp Vault) • Familiarity with: • Policy-as-code (e.g., Open Policy Agent) • Observability systems (Prometheus, Grafana, datadog) • Exposure to: • Data infrastructure (Hadoop, Trino, Spark) • Service mesh (e.g., Istio) Our Benefits: Full-time employees can take advantage of health coverage, paid parental leave, generous paid time-off and holidays, quarterly self-care days off, and stock options. We’ll make sure you have the equipment and support you need to work and connect with your teams, at home or in one of our offices. We have a growth mindset culture that is represented in all that we do, from onboarding through to numerous learning and development initiatives including access to our LinkedIn Learning platform. Employee well-being is also top of mind for us. We host quarterly wellness education sessions to encourage self care and personal growth. From wellness days to ERG-hosted events, we celebrate and energize all 6sense employees and their…