{"id":556302,"url":"https://alion.io/job/securly-senior-rust-systems-engineer-embedded-proxy-appliance","title":"Senior Software Engineer – Virtual Network Security Appliance (C++ / Go / Rust)","company":{"id":58795,"name":"Securly","domain":"securly.com","url":"https://alion.io/company/securly","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Pune, India"],"countries":["IN"],"hiring_countries":["IN"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":16500,"max_usd":44000,"period":"year","method":"role_seniority_country_cell","sample_n":18},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"C++","optional":false},{"name":"CloudFormation","optional":false},{"name":"Docker","optional":false},{"name":"eBPF","optional":false},{"name":"Envoy","optional":false},{"name":"HAProxy","optional":false},{"name":"Linux","optional":false},{"name":"Rust","optional":false},{"name":"Terraform","optional":false},{"name":"VPN","optional":false},{"name":"Amazon CloudWatch","optional":true},{"name":"gRPC","optional":true},{"name":"MQTT","optional":true},{"name":"SLI/SLO/SLA","optional":true},{"name":"Splunk","optional":true}],"status":"live","first_seen_at":"2026-09-08T20:52:51Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-27T23:57:24Z","board_verified":true,"closed_at":null,"days_open":49,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":49},"description":"Senior Software Engineer - Virtual Network Security Appliance (C++ / Go / Rust)\nHybrid - Pune, India · Full-time, direct hire · Rust · C/C++ · Go · Linux networking · Containers · AWS\nThe role\nYou'll build and own Securly's edge proxy appliance: a virtual appliance (containers on a minimal Linux OS image) that we deliver into customers' school networks to intercept, inspect, and filter web traffic. You own it end to end: the traffic-handling datapath, how it's packaged and shipped, how it updates itself safely, how it fails without cutting off a network, and how the deployed fleet reports back to our AWS control plane.\nThis is a senior role in Pune Engineering, reporting to the SVP of Engineering.\nYou'll bring\nYou've shipped software that runs inside a customer's network, such as a proxy, firewall, secure web gateway, VPN gateway, load balancer, or network security appliance. We're open to strong C/C++ or Go engineers whose Rust is still growing, as well as Rust engineers with appliance or proxy experience.\n8+ years of software engineering in systems, networking, or security products\nProduction experience in Rust, C/C++, or Go. Rust is where the new proxy is headed, so you'll write Rust here.\nNetwork programming below the HTTP layer: TCP streams, sockets, bidirectional forwarding, transparent proxying (TPROXY), TLS, and the Linux network stack\nA shipped appliance, proxy, or network security product you can name, and the problems you solved on it\nContainerization and software delivery into customer networks: Docker image builds, minimal Linux images, container networking, installs and upgrades\nNetwork security fundamentals: TLS, mTLS, certificates, and hardening systems against tampering\nPerformance testing and profiling: load tests, CPU/memory profiling, flame graphs\nWorking knowledge of AWS and infrastructure as code (CloudFormation or Terraform)\nStrongly preferred: production Rust (async, Tokio); Linux kernel networking (eBPF/XDP, netfilter, routing); HAProxy or Envoy; OTA or fleet management at scale; high-availability design (watchdogs, VRRP/CARP failover).\nNice to have: RADIUS; fleet messaging (gRPC over mTLS, MQTT, AWS IoT Core); observability (CloudWatch, Splunk, SLO definitions); immutable OS images (Flatcar, Talos, Buildroot).\nWhat you'll build\nProxy datapath: TCP interception, transparent proxying, and TLS inspection, plus Linux network stack tuning for throughput and latency.\nAppliance packaging and delivery: Container images and a minimal, immutable OS image that installs and runs cleanly inside customer networks.\nSafe updates: Zero-downtime OTA updates with A/B swaps, automatic health-check rollbacks, and phased canary rollouts to machines you can't log into.\nFail-open and high availability: Watchdogs, failover, and bypass logic so the customer's internet keeps working if the appliance doesn't.\nFleet control plane: Secure, low-latency channels for policy updates and telemetry between deployed appliances and AWS.\nSecurity hardening: Protecting the appliance against tampering and configuration drift in environments we don't own.\n Performance baselines: Load tests that simulate sharp, predictable traffic spikes (everyone on the network coming online at the start of the school day), profiling, and written baselines.\nThe technical challenges\nTraffic you have to handle correctly, every time. The proxy sits in the path of all web traffic on the network. Latency, memory use, and correctness under load all matter.\nMachines you can't touch. Appliances run inside networks we don't control. Updates, rollbacks, and debugging all have to work remotely, through telemetry and careful rollout design.\nFailure has to be safe. If the appliance crashes or an update goes wrong, traffic must keep flowing. Designing fail-open behavior and failover is core to the job.\nEvery environment is different. Customer networks vary widely in hardware, firewall setups, and configuration. The appliance has to install and run cleanly across all of them.\nArchitecture decisions are yours. Many design choices, standards, and documents for the appliance are still to be defined. You'll make those decisions and write them down.\nWhat you'll gain\nProduction Rust systems experience on a high-throughput network proxy, one of the most in-demand and hardest-to-get skill sets in systems engineering. If you're coming from C/C++ or Go, you'll make that move on real production work.\nEnd-to-end ownership of an appliance platform: datapath, OS image, update pipeline, HA, security, and fleet control plane. Most engineers only ever own one of these layers.\nArchitecture experience, with your design decisions and written docs shaping how the platform is built.\nHands-on depth in Linux networking and security: TPROXY, TLS inspection, eBPF/XDP, mTLS, and hardening.\nClose work with a Distinguished Engineer on architecture, plus mentoring other engineers on the team.\nA path toward technical leadership across the proxy and filtering platform. [confirm path]\nCompensation and benefits\nCompetitive compensation, based on experience.\nComprehensive health insurance (employee, spouse, children, and parents)\nAccidental and term life insurance\nLearning and development reimbursement\nPaid time off, plus 10+ public holidays per year\nRetirement benefits (EPF and gratuity)\nParental leave (as per statutory norms)\nStructured onboarding and ongoing coaching\nWhy Securly\nThe appliance you build filters web traffic for students in schools. Securly's technology has been credited with helping save 2,400+ student lives, and Pune engineering is where core infrastructure like this gets built, not a satellite team.\nSecurly is the market leader in AI-powered student safety and wellness, trusted by 20M+ students across 20,000+ schools. Since launching the first cloud-based K-12 web filter in 2013, we've combined AI and human insight to help schools spot and respond to bullying, self-harm, and violence. TIME named us one of America's Top EdTech Companies 2026, and we're a GSV 150 honoree and an EdTech Top 40 \"Most Used Product.\"\nOur people-first culture shows in the numbers (Source: Securly Qualtrics Employee Survey, 2025; WSA Global Benchmark):\n82% employee engagement, vs. a 73% global benchmark\n94% of employees are proud to work here\n91% rate manager effectiveness above benchmark\nSecurly is an Equal Opportunity Employer committed to a diverse, inclusive workplace.\n#LI-Hybrid #LI-DO1","description_format":"text","description_chars":6425,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Health insurance","Life insurance","Parental leave"],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Network Security","EdTech Platforms"],"lifecycle":[{"event":"open","at":"2026-09-08T22:01:51Z"}],"visa":[],"liveness":{"score":62,"band":"ok","label":"Likely open","p_open":1,"p_active":0.825,"p_room":0.75,"age_days":48,"expected_fill_days":49,"reasons":["conf:0","win:late"],"computed_at":"2026-10-27T05:46:45Z"},"pay":null,"html_url":"https://alion.io/job/securly-senior-rust-systems-engineer-embedded-proxy-appliance","json_url":"https://alion.io/job/securly-senior-rust-systems-engineer-embedded-proxy-appliance.json","meta":{"generated_at":"2026-10-28T00:16:30Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":269,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":58795},"rest":"https://alion.io/mcp/rest/get_company?id=58795"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsecurly-senior-rust-systems-engineer-embedded-proxy-appliance"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsecurly-senior-rust-systems-engineer-embedded-proxy-appliance"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsecurly-senior-rust-systems-engineer-embedded-proxy-appliance"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/securly-senior-rust-systems-engineer-embedded-proxy-appliance\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsecurly-senior-rust-systems-engineer-embedded-proxy-appliance"}]}