Top Cyber Security Jobs in Portland, ME

The Senior Security Engineering Manager leads security practices across application, infrastructure, and product security, setting strategic priorities and managing a team of engineers to enhance security posture and reduce risk.

As a Principal Security Engineer in Data Security, you will spearhead Upstart's data security program, architect software solutions, partner cross-functionally, and mentor teams while ensuring effective protection of sensitive data.

Lead AppSec efforts across product, platform, and AI features by owning secure SDLC, performing threat modeling and deep code reviews, driving vulnerability management and remediation, building AppSec tooling and automations (including AI-assisted workflows), and enabling engineering teams with secure design guidance and training.

Manage and coach a security operations team responsible for detection, investigation, and incident response. Perform hands-on work designing/tuning detections, operating SIEM/SOAR, leading incident response, improving automation and runbooks, and managing vendor relationships to protect patient and provider data.

Lead the Application Security Practice, overseeing team performance and business growth while delivering high-quality security consulting services and fostering innovation through AI integration and research contributions.

The Security Software Engineer will design and implement security controls for MongoDB Atlas, collaborating across engineering teams and ensuring adherence to high security standards.

The Senior Site Reliability Engineer will lead security design and implementation for cloud infrastructures, mentor teams, and automate security solutions.

The Network Security Architect will assess network security, guide teams, enhance security policies, design network solutions, and mentor engineers while aligning with a Zero Trust Strategy.

Lead product vision and strategy for security operations services, defining outcomes for managed investigation, response, threat hunting, and advisory services. Partner with customer security ops, product, and marketing teams to deliver AI-driven, automated features, represent Zscaler to customers, and drive measurable security outcomes and operational alignment.

Sell Zscaler's data security portfolio (DLP, CASB, DSPM) to commercial accounts. Act as the specialist for customers and partners, build account-based strategies, collaborate with solution engineers and sales leadership, and close complex deals with stakeholders from technical practitioners to C-suite.

The CISO will develop and manage the Bank's information security programs, ensuring compliance and protecting customer data while mitigating risks. They will also lead a security team, oversee third-party risk, and promote a culture of security awareness across the organization.

As a Security Architect, you will build secure agent runtimes and systems, ensuring robust security capabilities in agentic AI solutions while conducting security evaluations.

The role involves managing the security incident response team, handling incidents, coaching team members, and improving security processes, aiming for operational excellence in threat response.

The Security Analyst II will enhance Garner's security posture by monitoring threats, conducting risk analysis, ensuring compliance, and communicating effectively with stakeholders.

The Senior Application Security Engineer ensures the security of systems and data by monitoring vulnerabilities, responding to incidents, and promoting security best practices within the organization.

Act as the technical lead for enterprise pre-sales: deliver product demonstrations, own Proof of Value outcomes, support Account Executives, research competitive/technical issues, and drive customer success for complex email security engagements.

Design, build, and scale vulnerability management systems across cloud and application environments, automate vulnerability detection, and support offensive security initiatives.

The fellowship provides military spouses and separating service members with cybersecurity training and hands-on experience through projects and vendor training, aimed at enhancing their security skills.

Part-time remote cybersecurity internship (Aug 31–Nov 20, 2026) providing hands-on technical development, security response, collaborative projects, shadowing, vendor-led training and certifications. Interns complete in-house training, work 25–29 hrs/week (majority 11am–4pm EST), must be U.S.-based, and be available for full-time hire by 2027. Paid at $20/hr.

Lead security initiatives by establishing secure development practices, conducting security reviews, as well as managing threat modeling and security assessments.

The Embedded Detection Analyst will enhance detection performance for strategic customers, resolve security issues, and analyze incident patterns using various detection tools and methodologies.

The Senior Security Engineer will design detection logic, investigate alerts, automate responses, and collaborate on threat detection with team members. Responsibilities include triaging alerts, writing detection code, and defining best practices for detection frameworks.

Design and execute integration and security-focused test plans for PAM and Keeper Secrets Manager. Validate integrations across cloud providers, IAM, CI/CD, and OS/databases; perform reliability and security testing; analyze logs and defects; contribute to automation and collaborate with engineering, product, and security teams to ensure reliability and compliance.

The Security Engineer will design and maintain automation frameworks, manage security processes, optimize infrastructure, and integrate security automation while collaborating across teams.

Lead proactive threat hunts and complex incident investigations across cloud and SaaS (AWS, Azure, GCP, Okta, M365). Convert intelligence into hunt leads, detections, and customer narratives; triage alerts, mentor peers, and act as Incident Commander when needed. Leverage automation and AI to scale detection and response and drive improvements to processes and tooling.