Full - Stack Engineer enhancing engineering productivity at Fidelity. Building internal tools for SRE teams to improve operational efficiency and reliability.
About the role
- Senior Site Reliability Engineer managing VPN and DNS services to ensure performance and reliability. Collaborating with application teams to maintain security and quality across global infrastructure operations.
Responsibilities
- Deploy and manage globally distributed VPN and DNS services
- Ensure connection quality, stability, and performance across the entire node fleet
- Collaborate with application teams on client connectivity and protocol behavior
- Optimize VPN service performance — kernel tuning, flamechart analysis, profiling
- Manage security posture — firewalls, PKI, certificate lifecycle, hardening
- Manage authentication and authorization infrastructure
- Own configuration management and automated provisioning of infrastructure
- Clear written incident communication and postmortem ownership
Requirements
- Own critical VPN services end-to-end including architecture, scalability, security and monitoring
- Deliver OKRs and key commitments within agreed timelines
- Write RFCs/ADRs for new features, refactors, etc
- Raises engineering quality through standards, design reviews, knowledge sharing and mentorship
- Balances reliability, security and delivery speed with strong operational judgment
- Advanced networking - VPN protocols, tunneling, routing, DNS
- Linux at depth - kernel internals, tuning, module management
- Firewall management
- Performance analysis - flamecharts, profiling, bottleneck identification
- OSI model fluency - L2 through L7, TCP/IP stack, SSL/TLS
- Security fundamentals - PKI, certificate management, hardening
- Authentication and authorization - RADIUS, access control
- Configuration management and automated deployments
- Load balancing and failover for distributed services
- Docker
Benefits
- Free-of-charge 24/7 gym access
- Onsite and online workouts
- Consultations led by in-house Physical Well-Being experts
- Free psychologist consultations
- Dedicated mental health events
- Premium access to top-rated wellness apps like Calm, Headspace, and Mindletic
- Private health insurance
- Additional vacation days
- Extra days for sick leave, special occasions, or parenting needs
- Special gifts for birthdays, anniversaries, or major events
- Company events
- Team-building activities
- Workation opportunities
Job title
Job type
Experience level
Salary
Degree requirement
No Education Requirement
Tech skills
Location requirements
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