Title: Apartments.com - Senior Software Engineer Location: US-TX Austin time type: Full time job requisition id: R38618 Job Description: CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate information and online marketplaces for over 35 years, giving us the perspective to create truly unique and valuable offerings to our customers. We’ve continually refined, transformed, and perfected our approach to our business, creating a language that has become standard in our industry, for our customers, and even our competitors. We continue that effort today and are always working to improve and drive innovation. This is how we deliver for our customers, our employees, and investors. By equipping the brightest minds with the best resources available, we provide an invaluable edge in real estate. Apartments.com is the nation’s #1 rental marketplace for owners, property managers and consumers. Apartments.com is the network that millions of renters rely on every year to find their new place, is continuing to grow our industry-leading sales force. We provide apartment Property Managers and Owners with a platform to market their property listings and the industry’s most comprehensive virtual tools to attract the highest-quality renters. The Apartments.com Network includes Apartments.com, ForRent.com, ApartmentFinder.com, ApartmentHomeLiving.com, and eight other leading rental sites. Our suite of services includes digital advertising, social and reputation management, and market analytic solutions which delivers innovative tools for our customers. Our Apartments.com team in Austin, TX is currently seeking a Full-Stack Senior Software Engineer to join us in supporting continual growth and development of our industry leading websites. Work together with a ‘startup-minded’ development team delivering innovative web and business applications. Work is conducted using Ruby on Rails, C#, Python, and JavaScript, with most project code running on Linux. Applications are backed by SQL Server, ETL processes, data caching, and application support architecture. This role will be based in our Austin, TX office, offering a schedule of Monday-Thursday in office and the option to work from home on Friday. Responsibilities: - Development of website and software using Ruby on Rails. - Best-practice software engineering for performance, maintainability, and stability. - Competence with Git or similar version control system and experience with SDLC. - Use of AI tools in software development. - Ability to work well in a team environment. - AI product development using Amazon Bedrock. Basic Qualifications: - Bachelor’s Degree required from an accredited, not-for-profit university or college. - A track record of commitment to prior employers - 5+ years of web development experience on any platform. - 3+ years of experience using a language such as Ruby on Rails, C#, Python, or PHP. - Competence on a Linux development stack. - Experience using cloud components/Amazon EC2 - Demonstrated competence with T-SQL/general SQL - Demonstrated creativity and problem solving - Proficiency with JavaScript - A track record of commitment to prior employers. Preferred Qualifications and Skills: - Strong opinions about software design and architecture - Ability to visualize and explain complex ideas and build agreement around those ideas with an experienced technical team. - High level proficiency in web applications development. - Strong knowledge of technical ecosystems & architecture (dev-ops, caching strategies, networking, performance optimization, network topologies, load balancing, SDLC practices) - Strong JavaScript development skills. - Flexibility to move back and forth between detailed collaboration or independent engineering work. What’s in it for you? When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed. We offer you generous compensation and performance-based incentives. CoStar Group also invests in your professional and academic growth with internal training, and tuition reimbursement. Our benefits package includes (but is not limited to): · Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug · Life, legal, and supplementary insurance · Virtual and in person mental health counseling services for individuals and family · Commuter and parking benefits · 401(K) retirement plan with matching contributions · Employee stock purchase plan · Generous paid time off · Tuition reimbursement · On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes · Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups · Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks We welcome all qualified candidates who are currently eligible to work full-time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position. #LI-AV1 #Apartments.com CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing

• Lead and manage a team of engineers, supporting their growth and performance • Define and drive quarterly, release, and sprint planning • Ensure stability and reliability of services in production • Contribute hands-on to backend development (mainly in Golang) • Design and evolve scalable distributed systems • Review and challenge technical designs with a focus on risk, scalability, and testability • Define and improve testing strategies in collaboration with QA • Continuously improve CI/CD pipelines, tooling, and development practices • Collaborate closely with Product Owners and other teams

Own and enhance core backend systems for financial transactions, design scalable microservices and APIs, and lead system architecture decisions to ensure reliability and performance in a high-scale environment.

Title: Senior Software Developer, Scheduling Location: Remote, Canada Department: Engineering Job Description: Category Engineering Position Type Full-Time Remote Yes About Kinaxis Are you looking to join an innovative, market-leading company where you can truly elevate your career? At Kinaxis we are serious about culture, we are serious about technology, we are serious about customers, and we are serious about not taking ourselves too seriously. If you are looking to be part of an incredible growth story, then we might just be the place for you! In 1984, we started out as a team of three engineers. Today, we have grown to become a global organization with over 2000 employees around the world, 6 global office and a best-in-class HQ in Ottawa, Canada. As winners of several Top Employer awards globally, we are proud to work with our customers and employees towards solving some of the biggest challenges facing supply chains today. Kinaxis is a global leader in modern supply chain orchestration, powering complex global supply chains, and supporting the people who manage them. Our powerful, AI infused platform provides full transparency and visibility across end-to-end supply chains, enabling our customers to make faster, better decisions. We are trusted by renowned global brands to provide the agility and predictability needed to navigate today’s volatility and disruption. With more than 40,000 users in over 100 countries, we are expanding our team as we continue to innovate and revolutionize how we support our customers. Location Ottawa and Toronto, Canada - Hybrid Other Canadian locations - Remote About the team Production Scheduling is the process of arranging, controlling, and optimizing work and workloads in a manufacturing environment. Kinaxis Enterprise Scheduling unifies production planning and detailed scheduling on a single, concurrent platform—allowing planners and schedulers to immediately understand the impact of demand and supply changes, from long-term plans down to the shop floor schedule. The Enterprise Scheduling team builds and scales an enterprise-grade scheduling application with the flexibility of a site-level scheduler. We focus on developing fast, scalable algorithms, applying heuristic and optimization techniques where they deliver the most value, and ensuring our solutions are configurable, extensible, and production-ready. Our challenges are complex, our data is large, and our customers rely on us to deliver correctness, performance, and explainability at scale. Salary Range Annual cash compensation ranges from $102,000 to $150,000, plus a discretionary 10% company bonus. The final offer within this range will reflect the successful candidate’s skills and experience. Vacancy Status This is an existing job vacancy What you will do - As a Senior Algorithm Developer, you will contribute across the full lifecycle of algorithm backed product development, working at the intersection of real-world scheduling problems and enterprise software delivery. You will: - Design, implement, and test production scheduling models, constraints, heuristics, and meta heuristics - Translate real-world manufacturing and scheduling constraints into robust computational and mathematical models - Investigate and apply advanced scheduling techniques, including targeted use of AI/ML where appropriate - Lead or contribute to the design, implementation, and evolution of core scheduling logic in a commercial, enterprise-grade product - Define and contribute to test strategies, including unit, integration, regression, and performance testing, to ensure correctness and scalability - Collaborate closely with agile team members across engineering, product, QA, and support throughout design, implementation, and delivery - Participate actively in design discussions, code reviews, and scrum rituals, helping maintain a high bar for quality and maintainability - Support product stability by triaging defects, explaining product behaviour, suggesting workarounds, and fixing and validating moderate issues - Identify opportunities to improve and accelerate the SDLC through better tooling, automation, or AI- assisted workflows, while maintaining architectural consistency, secure design, and code quality - Review AI-generated code with rigor, ensuring correctness, architectural fit, integration safety, and edge-case coverage What we are looking for - Deep knowledge of production scheduling algorithms, optimization techniques, and/or heuristics - Strong software engineering skills with experience delivering enterprise-grade commercial software - 5+ years of algorithm development experience in a production environment - Proficiency in Java, C++, C#, or similar object-oriented languages, including unit testing and design patterns - Experience translating real-world planning or scheduling problems into computational or mathematical models - A passion for algorithms, data structures, and problem solving, with a desire to see solutions used in the real world - Ability to design and contribute to automated testing for functional correctness and performance - Comfort working across the full SDLC, from design through delivery and ongoing support - Strong communication skills, with the ability to explain complex behaviour clearly to both technical and non-technical stakeholders - Bachelor’s or Master’s degree in Industrial Engineering, Operations Research, Computer Science, or a related field Nice to Have - Background or understanding of supply chain management or manufacturing domains - Exposure to automation and infrastructure that supports reliable development, testing, performance validation, and production support - Familiarity with commercial solvers (e.g., Gurobi, CPLEX, Xpress) - Exposure to machine learning or AI techniques applied in optimization or planning contexts Work With Impact: Our platform directly helps companies power the world’s supply chains. We see the results of what we do out in the world every day, when we see store shelves stocked, when medications are available for our loved ones, and so much more. Work with Fortune 500 Brands: Companies across industries trust us to help them take control of their integrated business planning and digital supply chain. Some of our customers include Lockheed Martin, Unilever, P&G, ExxonMobil, Cisco and more. Social Responsibility at Kinaxis: Our Diversity, Equity, and Inclusion Committee weighs in on hiring practices, talent assessment training materials, and mandatory training on unconscious bias and inclusion fundamentals. Sustainability is key to what we do and we’re committed to a long-term net-zero operations strategy. We are involved in our communities and support causes where we can make the most impact. People matter at Kinaxis and here are some of the perks and benefits we offer, which may vary by location and employee: - Flexible vacation and Kinaxis Days (company-wide days off) - Flexible work options - Physical and mental well-being programs - Regularly scheduled virtual fitness classes - Mentorship programs, training, and career development - Recognition programs and referral rewards - Hackathons For more information, visit the Kinaxis website at www.kinaxis.com or the company’s blog at http://blog.kinaxis.com. Kinaxis welcomes candidates to apply to our inclusive community. We provide accommodations upon request to ensure fairness and accessibility throughout our recruitment process for all candidates, including those with specific needs or disabilities. If you require an accommodation, please reach out to us. This contact information is for accessibility requests only and cannot be used to inquire about the status of applications. Kinaxis is committed to ensuring a fair and transparent recruitment process. We use artificial intelligence (AI) tools in the initial step of the recruitment process to compare submitted resumes against the job description to identify candidates whose education, experience, and skills most closely match the requirements of the role. After the initial screening, all subsequent decisions regarding your application, including final selection, are made by our human recruitment team. AI does not make any final hiring decisions.