Senior Security Engineer, Klaviyo
Cloud Networking
$152-228k
3+ days a week in office
The only CRM built for B2C.
Open for applications
The only CRM built for B2C.
1001+ employees
Open for applications
$152-228k
3+ days a week in office
1001+ employees
Company mission
Klaviyo is the only CRM built for B2C brands. Powered by its built-in data platform and AI insights, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster.
Role
Who you are
- Have 4+ years of experience in network security engineering and infrastructure protection
- Security domain expertise in designing, implementing, and managing secure network infrastructures in both on-premises and cloud environments
- Achieved certifications or participated in advanced training on network security (e.g., CISSP, CCNP Security, CCIE Security, GIAC GSEC, or equivalent)
- Proven experience with enterprise-grade firewall platforms (e.g., Palo Alto Networks, Cisco ASA/Firepower), IDS/IPS technologies, and VPN solutions
- Deep understanding of network protocols and technologies, including advanced routing and switching concepts
- Experience securing cloud network environments, with hands-on knowledge of AWS networking services like VPCs, Transit Gateways, and security groups
- Familiarity with network automation and scripting, using tools like Ansible, Python, or similar to streamline security processes
- Knowledge of zero trust principles and experience implementing network segmentation strategies
- Strong analytical and problem-solving skills, with experience in threat detection, incident response, and vulnerability management
- Excellent communication and teamwork abilities, capable of articulating complex security concepts to technical and non-technical stakeholders
- Passionate about staying current with the latest network security trends and technologies, and applying them to enhance our security posture
What the job involves
- As an Infrastructure Security Engineer focused on networking you’ll be joining the Infrastructure Security Team, you can expect to be deeply involved in strategic discussions on how we secure and optimize our network infrastructure
- This includes designing and implementing robust network security solutions, monitoring network traffic for threats, and collaborating with cross-functional teams to ensure our network remains secure and resilient
- You will set the direction for Klaviyo’s engineering teams with a Security First focus on network and cloud infrastructure
- Provide technical leadership that drives technology choices and architectural decisions across multiple teams, offering solutions for complex problems around network security standards and best practices
- Design, implement, and manage network security solutions, including next-generation firewalls, IDS/IPS, and VPNs to protect Klaviyo's global network infrastructure
- Monitor and analyze network traffic using advanced tools to detect and respond to security incidents, ensuring timely mitigation of threats
- Implement and advocate for network segmentation and zero trust architectures, reducing attack surfaces and preventing lateral movement within the network
- Manage and secure cloud network infrastructures, focusing on VPC configurations, security group policies, and network access controls in AWS, GCP, and Azure
- Automate network security tasks using scripting and infrastructure as code tools to increase efficiency and reduce the potential for human error
- Conduct regular network security assessments and penetration tests, identifying vulnerabilities and driving remediation efforts
- Collaborate closely with Klaviyo's Engineering, IT, and Product teams to integrate network security into all aspects of our systems and services
- Develop and enforce network security policies and procedures, ensuring compliance with industry regulations such as PCI DSS, GDPR, and SOC 2
- Educate and mentor team members on network security best practices, fostering a culture of security awareness and continuous improvement
- Stay ahead of emerging network security threats and technologies, adapting strategies to proactively mitigate risks
Our take
Klaviyo is a marketing firm helping growth-focused eCommerce brands drive more sales with super-targeted, highly relevant email, Facebook and Instagram marketing campaigns. From personalised newsletters to automated emails when customers abandon their shopping carts, the marketing automation platform makes it easy for businesses to capture, store, analyze, and predictively use their own data to drive measurable, high-value outcomes.
Klaviyo's CEO, Bialecki, believes that the main problem with e-mail marketing today is that there is a divide between two kinds of tools: analytics tools that help you understand what people are doing on a website, such as what products they are considering, and messaging tools that send them a marketing e-mail. Operating primarily within the retail and eCommerce industry, Klaviyo aims to solve this by offering a tool that brings together analytics and messaging. This allows companies to bring all of their first-party data into a single platform to get a deep understanding of their customers and then activate that data to deliver highly-targeted, personalised communications through email and SMS. In the process, Klaviyo's customers get a deep understanding of their consumers.
Klaviyo is a fast-growing company mainly due to its business model - the firm offers a concrete ROI for Klaviyo’s clients if the software persuades customers to make purchases by treating different types of customers differently. An IPO in 2023 has led to Klaviyo's release of Klaviyo AI, which empowers businesses to unlock revenue-driving opportunities and deliver exceptional customer experiences across channels. Still in its early days of public listing, it will be interesting to see how Klaviyo fares in the years to come.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Employee endorsements
Opportunities to learn
"Not only we have a good stipend to spend on learning but we also have development days every quarter, where we can switch off and focus on the areas..."
Funding (last 2 of 6 rounds)
Aug 2022
$100m
LATE VC
May 2021
$320m
SERIES D
Total funding: $778.5m
Company benefits
- Private health care cover
- All full time employees receive equity
- Commuting allowance for when you do travel to the office,
- A very generous education allowance every year for you to spend on learning and development.
- Participation in Klaviyo ESPP
- Personal lifestyle allowance
- Flexible holiday scheme
Company values
- We always put our customers first.
- We are owners.
- We strive to make the world more equitable.
- We are ambitious.
- We are always learning.
- We collaborate radically.
- We are remarkable.
Company HQ
Financial District, Boston, MA
Articles
Leadership
Andrew Bialecki
(CEO)Previously CTO at RockTech, Senior Engineer at Performable, Lead Engineer at Applied Predictive Technologies and an SDET Intern at Microsoft
Ed Hallen
(Chief Product Officer)Currently an Advisor at Team Engine. Previously worked in Enterprise Business Development at Google, Summer Associate at Accel-KKR and Principal at Applied Predictive Technologies.
Salary benchmarks
We don't have enough data yet to provide salary benchmarks for this role.
Submit your salary to help other candidates with crowdsourced salary estimates.
Diversity, Equity & Inclusion at Klaviyo
Katelyn Nnake (Director of Diversity, Equity & Inclusion)
- At Klaviyo one of our key values is "we strive to make the world more equitable"
- In 2024 over 75% of Klaviyos participated in a Klaviyo Resource Group
Share this job
View 186 more jobs at Klaviyo