Senior Security Engineer

Want to help us help others? We’re hiring! Halcyon Labs is the world’s most powerful community for good, dedicated to helping people help each other. By uniting individuals and nonprofits in one place, Halcyon Labs makes it easy and safe for people to ask for help and support causes—for themselves and each other. Together, our community has raised more than $40 billion since 2010. Join us! The Halcyon Labs team is searching for our next Senior Security Engineerto help build a secure platform for giving. We are looking for a generalist within this specialty to swarm with as a team. Candidates considered for this role will be located remotely but are expected to overlap with Pacific Time. Already part of our team? We ask that internal candidates apply via the internal job board to ensure your application is reviewed appropriately. The Job Partner with engineering teams to improve security through consultation, education, tooling, and process improvements. Throughout the Secure Development Lifecycle, perform targeted code reviews and security assessments when investigating high-risk designs, vulnerabilities, or security-sensitive features. Help evaluate emerging AI technologies and development practices, helping engineering teams adopt them securely through practical guidance, guardrails, and risk assessments. Notice recurring security challenges and contribute to scalable solutions that reduce risk across the organization. Help handle application vulnerability reports received through third-party sources. Review, prioritize, and work with the relevant engineering teams to remediate them. Command incidents and facilitate post-mortem investigations. Participate in on-call rotation and take your turn shouldering operational toil for the team. You Demonstrate growing judgement skills. Dedicated to delivering work in security while setting high expectations for our users and coworkers. Demonstrate an inclusive mindset and enjoy working with people from a wide range of backgrounds and experiences. 3+ years contributing to secure outcomes with engineering teams. Experience with OWASP Top 10 and other industry standards. Experience with application security and security testing. Experience in secure code review, including basic skills in one or more of PHP, Python, Kotlin, JavaScript, and TypeScript. Excellent written and verbal communication skills. Why you’ll love it here Make an Impact : Be part of a mission-driven organization making a positive difference in millions of lives every year. Innovative Environment : Work with a diverse, passionate, and talented team in a fast-paced, forward-thinking atmosphere. Collaborative Team : Join a fun and collaborative team that works hard and celebrates success together. Competitive Benefits : Enjoy competitive pay and comprehensive healthcare benefits. Holistic Support : Enjoy financial assistance for things like hybrid work, family planning, along with generous parental leave, flexible time-off policies, and mental health and wellness resources to support your overall well-being. Growth Opportunities : Participate in learning, development, and recognition programs to help you thrive and grow. Commitment to DEI : Contribute to diversity, equity, and inclusion through ongoing initiatives and employee resource groups. Community Engagement : Make a difference through our volunteering program. We live by our core values: impatient to be great , find a way , earn trust every day , fueled by purpose . Be a part of something bigger with us! Halcyon Labs is proud to be an equal opportunity employer that actively pursues candidates of diverse backgrounds and experiences. We do not discriminate on the basis of race, color, religion, ethnicity, nationality or national origin, sex, sexual orientation, gender, gender identity or expression, pregnancy status, marital status, age, medical condition, mental or physical disability, or military or veteran status. The annual U.S. salary range for this full-time position is $124,500.00 - $186,500.00 . The company also offers equity and other benefits to employees, including healthcare, dental, vision, life insurance and 401(k) saving program. In addition to this wage, there are geolocation differentials that will increase pay depending on the work location. Additionally pay may vary depending on other factors including skills, experience, education, or training. Your recruiter can share more about the specific total compensation package based on your location during the hiring process. If you require a reasonable accommodation to complete a job application or a job interview or to otherwise participate in the hiring process, please fill out this accommodation form . Global Data Privacy Notice for Job Candidates and Applicants: Depending on your location, the General Data Protection Regulation (GDPR) or certain US privacy laws may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the applicat