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Senior Security Infrastructure Engineer

SezzleIndia, RemoteDV-Development
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Posted
9 Apr 2026
Status
Open · checked 7d ago

About this role

The Senior Security Infrastructure Engineer role at Sezzle is a remote position based in India designed for an experienced professional looking to enhance cloud security and developer workflows. This opportunity suits an autonomous doer who enjoys tackling complex security challenges at scale within a fast-paced fintech environment.

Role Overview

Sezzle is hiring a hands-on Senior Security Infrastructure Engineer to reinforce the security framework across applications, cloud infrastructure, and developer pipelines. This role requires heavy ownership and active participation in vulnerability management, incident response, supply chain security, and detection engineering. The professional in this position will operate both strategically and tactically, balancing day-to-day security operations with the design of robust, scalable defenses.

Key Responsibilities

Lead vulnerability management initiatives across platforms, applications, and infrastructure, coordinating remediation efforts with engineering teams.
Build, mature, and operate SIEM and XDR systems, including log ingestion, alert tuning, and detection rule design.
Investigate security incidents across cloud and application environments, executing root cause analysis and permanent fixes.
Implement detection strategies for suspicious behaviors, including data exfiltration patterns utilizing database and application telemetry.
Direct threat modeling activities and security architecture design reviews to catch risks early.
Harden infrastructure and CI/CD pipelines to mitigate software and container supply chain vulnerabilities.
Establish and scale dependency and container risk detection controls, aligning practices with PCI DSS and SOC 2 standards.
Automate security operations, detection, and response workflows using modern tooling and artificial intelligence.

Requirements

Minimum of 6 years of professional experience in software, infrastructure, or security engineering focused on production cloud systems.
Proven background in vulnerability management, scanning, triage, validation, and remediation tracking.
Practical knowledge of SIEM tools such as Wazuh, Splunk, or ELK for detection and incident response.
Strong expertise in AWS, Linux, and Kubernetes security architecture, operational hardening, and best practices.
Experience securing CI/CD workflows and reducing software supply chain risks using tools like Snyk, Trivy, or Grype.
Familiarity with compliance standards including PCI DSS and SOC 2.
Demonstrated capability utilizing Claude or equivalent large language model tools to enhance productivity and research.

Nice to Have

Experience designing and refining detection rules to reduce noise in investigation workflows.
Deep understanding of cloud-native security controls such as network segmentation and IAM.
Background in aligning technical security measures with regulatory compliance requirements.
Experience leveraging automation and AI to reduce manual workloads at scale.

Skills and Tools

Languages and Frameworks: Python, Golang, TypeScript, React
Cloud and Infrastructure: AWS, Kubernetes, Linux
Security Tools: SIEM, Snyk, Trivy, Grype, Wazuh, Splunk, ELK
Emerging Tech: Claude and other large language models

Salary and Benefits

Monthly Compensation: $5,000 - $9,500 USD gross per month based on experience level.

About the Company

Sezzle is a mission-driven organization revolutionizing the retail and fintech landscape by providing interest-free installment plans that financially empower consumers and increase merchant sales. The company values individuals who embrace calculated risks, earn trust, disagree and commit, and relentlessly raise the bar to deliver impactful results.

How to Apply

Interested candidates should apply directly on the official company careers page to submit their application for this remote position.

Skills and tech stack

PythonAWSKubernetesReactTypeScriptGolang

Questions candidates ask

What is the location requirement for this role?

This is a remote position based in India.

What is the monthly salary range for the Senior Security Infrastructure Engineer?

The gross monthly compensation ranges from $5,000 to $9,500 USD, determined by the candidate's experience level.

How many years of experience are required?

Candidates must have 6+ years of experience in security, software, or infrastructure engineering.

Are there specific technology proficiencies required for this job?

Yes, candidates need strong knowledge of AWS, Linux, and Kubernetes, along with experience using AI tools like Claude and programming languages such as Python, Golang, or TypeScript.

What compliance frameworks are relevant to this position?

The role involves supporting and implementing security controls aligned with compliance frameworks such as PCI DSS and SOC 2.

Ready to apply?

The application is on the official Sezzle careers page.

Apply on company site