CoStar Group (NASDAQ: CSGP), is a leading provider of online real estate marketplaces, information, and analytics in the property markets. Founded in 1987, CoStar conducts expansive, ongoing research to produce and maintain the largest and most comprehensive database of commercial real estate information. Our suite of online services enables clients to analyze, interpret and gain unmatched insight on commercial property values, market conditions and current availabilities. STR provides premium data benchmarking, analytics, and marketplace insights for the global hospitality industry. Ten-X provides a leading platform for conducting commercial real estate online auctions and negotiated bids. LoopNet is the most heavily trafficked commercial real estate marketplace online. Apartments.com, ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, Westside Rentals, AFTER55.com, CorporateHousing.com, ForRentUniversity.com and Apartamentos.com form the premier online apartment resource for renters seeking great apartment homes and provide property managers and owners a proven platform for marketing their properties. Homesnap is an industry-leading online and mobile software platform that provides user-friendly applications to optimize residential real estate agent workflow and reinforce the agent-client relationship. Homes.com is the fastest growing online residential marketplace that connects agents, buyers, and sellers. BureauxLocaux is one of the largest specialized property portals for buying and leasing commercial real estate in France. Business Immo is France's leading commercial real estate news service. CoStar Group's websites attract tens of millions of unique monthly visitors. Headquartered in Washington, DC, CoStar Group maintains offices throughout the U.S., Europe, Canada, and Asia.

Co-Star is seeking a trusted right-hand to our CEO &amp; COO. This role blends executive support with personal operations, ensuring our leadership can focus on what matters most. What You’ll Do Act as the primary support for the CEO &amp; COO, managing priorities, logistics, and time across both work and life Provide calendar, travel, communications, and operational support Anticipate needs and create systems that keep personal and professional commitments running smoothly Maintain flexibility to assist across a wide range of responsibilities with discretion and judgment What We’re Looking For NYC-based professional with flexibility for both in-person and remote work Highly organized, adaptable, and able to manage sensitive matters with absolute discretion Tech-savvy with strong communication skills Previous experience in lifestyle management, executive assistance, or hospitality preferred Position Details 10–20 hours per week, flexible scheduling Freelance position $25-30/hour&nbsp; Opportunity to support a dynamic team at a growing company We’re building tools that help millions of people understand themselves better. If you’re interested in supporting that work by ensuring our executives are set up for success across all aspects of their lives, we’d love to hear from you.

Assistant

+++ We're expanding rapidly, so if you don't see a role that fits your expertise now, you can submit your resume here and include a brief note on how your background and experience would add value to Co-Star. When we open a role that matches your experience, our recruiting team will reach out. While we respond to all people who apply through defined open roles, applications through this link may not receive a response. If there is an open job you're interested in, apply directly to that role.&nbsp; +++

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In Dr Joseph Lstiburek’s essay “A Perfect Wall”, he analyzes the elements that enable a wall to perform its core function–separating the inside from the outside. He calls the most solid type of wall a “five hundred year wall”, referring to the five centuries of construction knowledge that went into its making (and the five hundred years it could endure). Capacity accumulates across generations, bringing perfection within reach. Randy Williams’ “A Practical Perfect Wall” takes Lstiburek’s ideal principles of wall-building and clearly outlines modern procedures for making them into real walls.&nbsp; A perfect wall and perfect code are similar. In applying best practices, we experience perfection not as a mystical ideal, but as a practical exercise of our expertise. Perfection is not about pushing a meaningless metric to 100%. Code is perfect when it achieves its intended purpose. We are looking for a highly competent engineer with a deep appreciation for the practical perfectibility of everyday, tangible experience, and a desire to make constant improvements over time. Someone who shares our standards for a perfect system: one that is built with a specific end use in mind, and reliably fulfills that need.&nbsp; The engineering team at Co-Star values communication, collaboration–and most importantly, delivery. We prioritize making as much contact with reality as possible, to find out directly from users what they want and need. Like walls make buildings that hold human life within them, the systems we create together are containers of intimacy, humor and connection. What you'll do You’ll release features weekly to millions of people. Every launch is an experiment in making astrology feel more accessible, and your work will be in users’ hands almost immediately. You’ll collaborate closely with product and design to turn ambitious concepts into practical, reliable code. We’re a small, nimble team: you won’t just be handed tickets, you’ll have real input into how we build and you’ll influence the future of our iOS codebase. What you'll bring 4+ years of iOS experience, solid frontend fundamentals like animation, caching, and state management. You’re solution oriented–every problem has a fix, and you enjoy finding the best path to it. Thoughtfulness and intentionality in how you work: You plan ahead, coordinate with your team, and work together to get projects across the finish line and into the hands of our users. You’re driven to improve&nbsp; systems. To you, good code means “easy to use, hard to break” and you make it happen through collaborative planning, thorough testing, and strategic experimentation. What we offer Fully covered $0 deductible healthcare + vision, dental, and therapy 401(k) + 5% matching Unlimited vacation + 2 week company-wide recharge at the end of each year&nbsp; Equipment budget&nbsp; 12 weeks 100% paid parental leave Readings with in-house astrologers A competitive total rewards package, including base salary, equity (stock options), and benefits. Our salary and equity ranges are highly competitive within the tech industry and are regularly updated using the most reliable compensation survey data. Offers are crafted based on a candidate’s experience, expertise, location, and internal equity relative to peers. Our target new hire base salary ranges for this role is $135,000-$190,000.

Senior iOS Developer

SOCIAL WRITING &amp; CONTENT CREATION INTERN Work on projects with our brand team. June–August in NYC (hybrid), full-time or part-time. Paid.

Social Writing & Content Creation Intern

In the 1940s a wealthy American businessman, known simply as “Collector,”&nbsp; commissioned Anaïs Nin, Henry Miller, and other famous writers to produce erotic fiction for his private consumption, at a rate of one dollar per page. “This started an epidemic of erotic journals. Everyone was writing up their sexual experiences. Invented, overheard, researched from Krafft-Ebing and medical books. We had comical conversations. We told a story and the rest of us had to decide whether it was true or false. Or plausible. Was this plausible? Robert Duncan would offer to experiment, to test our inventions, to confirm or negate our fantasies.” Nin never met the collector herself. But occasionally she received a phone call. “Less poetry,” said the voice over the telephone. “Be specific.” Writing horoscopes is a little like writing erotica. You must write about your own life and everyone you have ever known. You must look directly at the most uncomfortable bits of life: our perversions, shadows, embarrassing insecurities, and describe them as plainly as possible, with generosity and care for our tender hearts and fragile dreams. Doing it well is arduous but can also be pleasurable. A practice for all the other types of writing you will do.&nbsp; We’re looking for this kind of writer to join the Co–Star Content team. You’ll help tens of millions of people connect with each other and themselves—through astrology—in real, meaningful ways. What you'll do Express complex human experience with simplicity and nuance, compassion and objectivity. Wield the horoscope to find new ways to make people feel seen. “Recover the sensation of life; make us feel things, make the stone stony.” Rewrite what feels tired and trite. Cut everything unnecessary. Internalize the brand, and make it come alive in your own words. What you'll bring A strong voice and internal compass. Keen observational skills. You perform psychological brain surgery on yourself and others.&nbsp; Piercing knowledge of human behavior—whether through academia, astrology, therapy, or a lifetime of careful observation. You’re emotionally intelligent and generally give good advice. Excellent communication skills and confidence presenting your work. Precise writing. Your metaphors are unvarnished and your style is deep without being pretentious. 6+ years of professional writing experience. 4+ years of collaborative work experience.&nbsp; What we offer Fully covered $0 deductible healthcare + vision, dental, and therapy 401(k) + 5% matching Unlimited vacation + 2 week company-wide recharge at the end of each year&nbsp; Equipment budget&nbsp; 12 weeks 100% paid parental leave Readings with in-house astrologers A competitive total rewards package, including base salary, equity (stock options), and benefits. Our salary and equity ranges are highly competitive within the tech industry and are regularly updated using the most reliable compensation survey data. Offers are crafted based on a candidate’s experience, expertise, location, and internal equity relative to peers.Our target new hire base salary ranges for this role is $87,000-$132,000.

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