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As a Principal Software Engineer at Huntress, you will be responsible for leading a feature delivery team in the design, development, and high-quality release of software features for the Huntress SIEM Platform that provides for automated detection and human-powered threat hunting. • Collaborate closely with the team engineering manager, product manager, security research, platform, and architect on strategic initiatives and technical designs.

Huntress

Principal Software Engineer, SIEM (Ruby/Rails)

Ivy Exec

General knowledge of Active Directory (AD) or other LDAP Directory Services, Intrusion Detection, Security Policies / GPOs, Operating System (OS) hardening, Single Sign-on (SSO), Federation (SAML and/or OIDC), Multi-Factor Authentication (MFA), Certificates/Public Key Infrastructure (PKI), Identity Management concepts, Cloud Technology and device authentication a plus. In this role, the Senior IAM Engineer will focus on pBAC / PBAC (Policy-Based Access Control) capabilities, including centralized policy decisioning, distributed policy enforcement integration, attribute/context aggregation, and auditability to meet security and compliance expectations.

EPAM Systems

Senior PBAC Engineer

You should be equally comfortable building Go-based CLIs, TypeScript developer tooling, release automation, update mechanisms, and analytics pipelines that help teams understand how tooling is used in production. • Instrumentation & Observability: Experience implementing telemetry, analytics, and usage instrumentation within developer tools, with a strong knowledge of OpenTelemetry, metrics collection, logging, and observability best practices.

Senior Full-stack Engineer

This role is 100% on-site in Beverly, MA (5 days/week) with no remote or hybrid option, due to the client’s need for fast, co-located delivery. NET Full Stack Engineer with strong Angular, Azure, C#, and SQL expertise to join a rapid development initiative for an IoT platform.

.NET Full Stack Engineer

Leveraging JavaScript/TypeScript, Node.js, SQL and NoSQL cloud-native databases, and AWS, you will develop innovative solutions for user, group, and membership management while ensuring the highest levels of security and reliability. • Strong knowledge of security architecture, LDAP, Active Directory, SAML, SSO, OAuth2, OpenID Connect and web protocols like XML, SOAP, JSON, and REST.

Vercel

Software Engineer, Backend

This is a high-impact, ownership-heavy role: youll define IAM architecture from the ground up, migrate Okta fully behind Terraform, and serve as the subject matter expert who levels up the entire organization on IAM best practices. Were looking for a Security Software Engineer to join our Security team and own Vercels Identity and Access Management strategy - across both corporate and production environments.

Security Software Engineer, IAM

Youll play a key role in making security a core part of how we build, deploy, and scale our systems, while helping the company grow securely and confidently. We are building the platform for that future, trusted by companies like OpenAI, PayPal, Ramp, Supreme, and millions of developers worldwide.

Security Engineer, Cloud

This globally distributed, fully remote team of experienced engineers develops core storage and query technologies for observability workloads, including improving storage efficiency, advancing ES|QL query processing and performance, and optimizing data layouts for object storage. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

Elastic

Principal Software Engineer - Storage Engine

In this role, success goes beyond ticket counts; you will streamline critical revenue processes, scale platform architecture, and leverage AI to build smart automations that eliminate manual work, serving as a key technical partner driving meaningful business impact. • Proficiency in modern frontend technologies (JavaScript/TypeScript, HTML, CSS, modern frameworks) and backend development (object-oriented programming, RESTful API design, databases/SQL, data modeling).

Lead Salesforce Full Stack Engineer

Leveraging your deep distributed systems expertise to design, build, and operate core pieces of our next-generation Serverless Elasticsearch offering, directly impacting the experience of customers worldwide. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

Principal Java Engineer - Distributed Systems, Serverless

Senior Salesforce Engineer

We also own the orchestration of Elasticsearch in serverless, the CI/CD workflows, and enable Elasticsearch developers to deliver Elasticsearch to customers - serverless, cloud, and on-premise alike. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.

Senior Java Engineer - Core/Infra

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. We are on the lookout for a Senior Software Engineer to join our Elasticsearch - Distributed Systems team and focus on how Elasticsearch provides scale, performance, and resilience, especially in the context of our Serverless offering.

Senior Java Engineer - Distributed Systems, Serverless

CONTRACTOR

HOUR

While an hourly range is posted for this position, an eventual hourly rate is determined by a comprehensive salary analysis which considers multiple factors including but not limited to: job-related knowledge, skills and qualifications, education and experience as compared to others in the organization doing substantially similar work, if applicable, and market and business considerations. Take ownership of our core server estate, Integrating, managing and optimizing physical and virtual servers — including cutting ‐ edge hypervisors like VMware and Hyper-V and integrating their hosted applications to OT systems for monitoring and security.

The Computer Merchant, Ltd

IT Infrastructure Engineer

While an hourly range is posted for this position, an eventual hourly rate is determined by a comprehensive salary analysis which considers multiple factors including but not limited to: job-related knowledge, skills and qualifications, education and experience as compared to others in the organization doing substantially similar work, if applicable, and market and business considerations. · Build a Proof of Concept (POC) for rebuilding the legacy Java/J2EE application using modern AWS services (e.g., Lambda, ECS/EKS, S3), micro services to improve scalability, reliability, and cost-efficiency.

System Admin/DevOps Engineer

Optimize HTTP requests, balancing reuse vs usability, reducing wasted re-renders, smaller code bundles, faster CI/CD pipelines, maximizing automated testing, and effective support tooling are our daily focus, that drives us to design and code great user experiences. We are looking to hire a Lead Frontend Engineer to join our Frontend team that focuses on building immersive experiences, empowering many personas to manage the Application traffic of complex network infrastructure across cloud providers and on-premise deployments.

Tetrate

Lead Frontend Engineer

Abnormal AI is looking for an Application Security Engineer II to secure the AI-powered systems at the core of our AWS-based platform (LLM-integrated features, agentic workflows, MCP connectors, and the model supply chain) against threats like prompt injection at production scale. • Lead threat modeling and security architecture reviews with engineering teams by translating security risks into concrete development actions, with particular focus on AI-powered features (LLM integrations, agentic workflows, MCP connectors).

YEAR

Abnormal

Application Security Engineer II

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. • You have a solid comprehension of distributed systems architecture, including partition tolerance, cluster state propagation, and scaling challenges in large-scale data stores.

Senior Software Engineer - Performance Tuning

By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. This includes deep experience with benchmarking tools (e.g., flamegraphs, JMH, Rally), identifying performance regressions, and implementing algorithmic or hardware-aware optimizations.

Principal Software Engineer - Performance Tuning

This is a hands-on technical leadership role: youll lead major workstreams, set direction that other engineering teams build against, and write and review production code every week. Youll lead major workstreams across both and own the validation approach that proves a reworked pipeline still behaves like the one it replaces, so we can turn old paths off knowing we havent lost anything.

Reading Instructor Jobs in Illinois

Principal Software Engineer, SIEM (Ruby/Rails) Huntress

Senior PBAC Engineer EPAM Systems

Senior Full-stack Engineer EPAM Systems

.NET Full Stack Engineer EPAM Systems

Software Engineer, Backend Vercel

Security Software Engineer, IAM Vercel

Security Engineer, Cloud Vercel

Principal Software Engineer - Storage Engine Elastic

Lead Salesforce Full Stack Engineer Elastic

Principal Java Engineer - Distributed Systems, Serverless Elastic

Senior Salesforce Engineer Elastic

Senior Java Engineer - Core/Infra Elastic

Senior Java Engineer - Distributed Systems, Serverless Elastic

IT Infrastructure Engineer The Computer Merchant, Ltd

System Admin/DevOps Engineer The Computer Merchant, Ltd

Lead Frontend Engineer Tetrate

Application Security Engineer II Abnormal

Senior Software Engineer - Performance Tuning Elastic

Principal Software Engineer - Performance Tuning Elastic

Staff Software Engineer - Detection Platform (GoLang) Huntress

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