Senior Linux Infrastructure Engineer
tastytrade2 months ago
Base Salary
$140k - $180k/yr
Responsibilities
- Diagnose and tune Linux production performance across CPU scheduling, NUMA placement, memory, page cache, disk and filesystem I/O, and network behavior.
- Lead incident troubleshooting, write postmortems, organize follow-up work, and prevent recurring production issues.
- Build and maintain reviewed, tested, version-controlled configuration management code using Salt, Ansible, Chef, or Puppet.
- Build, deploy, and operate containerized services on Kubernetes or Nomad, including scheduling, resource limits, health checks, rollouts, and failure diagnosis.
- Automate operational work using Bash and Python.
- Operate DNS, DHCP, TCP/IP, VLANs, routing, and TLS-related network services and troubleshoot application, host, and network boundaries.
- Configure and troubleshoot Nginx and HAProxy and support Redis and RabbitMQ in production.
- Provision and maintain virtual machines across VMware, Xen, or KVM, including capacity planning, host maintenance, and live migration.
- Administer Vault secrets, dynamic credentials, policies, and rotation.
- Maintain Elastic Stack log aggregation and Nagios, CheckMK, or Icinga alerting.
- Use Git and pull requests for infrastructure changes and participate in peer review.
- Create runbooks, design proposals, and incident write-ups and support change management.
Requirements
- 6+ years of experience in a Linux systems, infrastructure, or SRE role.
- Expert-level Linux knowledge, including performance analysis with tools such as perf, strace, ss, iostat, and bpftrace or equivalents.
- Strong understanding of processes, signals, systemd, cgroups, namespaces, filesystems, memory exhaustion, and file descriptors.
- Production-scale experience authoring and maintaining declarative configuration management code with Salt, Ansible, Chef, or Puppet.
- Production experience with Kubernetes or Nomad and container orchestration operations.
- Strong Bash skills and working Python knowledge.
- Foundational networking experience across VLANs, routing, DNS, DHCP, TCP behavior, and TLS.
- Experience with Nginx or HAProxy for proxying and load balancing.
- Virtualization experience with at least one of VMware, Xen, or KVM.
- Daily experience with Git and peer review, including keeping changes reviewable.
- Excellent written communication for runbooks, design proposals, and incident write-ups.
- Ability to become productive quickly in unfamiliar technical areas.
- Preferred: primary production ownership of Redis or RabbitMQ.
- Preferred: Vault administration including policies, authentication methods, and rotation at scale.
- Preferred: Elastic Stack operations involving index lifecycle, mappings, and cluster tuning.
- Preferred: experience in regulated environments or systems where downtime has direct revenue impact.
- Preferred: colocation or bare-metal experience involving hardware lifecycle, remote hands, and capacity planning.
Benefits
- Hybrid work arrangement in Chicago, Illinois.
- Base salary range of $140,000-$180,000, with a discretionary performance bonus of 10-12% of base salary.
- Stock purchase options, medical, vision, dental, and 401(k) benefits.
- 20 paid vacation days plus an additional paid vacation day during the employee's birthday month.
- 10 paid sick days.
- Gym membership reimbursement and an in-building gym.
- Commuter benefits and a shuttle to and from Metra.
- Pet insurance and wellness and mental health programs.
- Charitable donation matching and two paid volunteer days off.
- Daily catered lunch and an office kitchen with snacks and beverages.
Tech Stack
Categories
About tastytrade
tastytrade is a Chicago-based retail brokerage that builds a platform for self-directed options, futures, and equities trading, along with daily financial education via tastylive. It monetizes through trading commissions, margin interest, and other brokerage fees. Founded by the creators of thinkorswim and acquired by London-based IG Group in 2021, the company serves active individual traders in the U.S. and operates within IG North America alongside brands like tastylive and tastyfx.