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Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companies, corporations, healthcare systems, colleges/universities, and large infrastructure programs throughout the U.S. and around the world. Our employees collaborate seamlessly among 50+ offices and gain valuable hands-on experience that fosters career growth. Langan culture is entrepreneurial from advancing innovative technical solutions, to participating in robust training and knowledge sharing, to making progressive change within the communities we live and work.Consistently ranked among the top ten "Best Firms to Work For" and Engineering News-Record's top 50 firms worldwide, Langan attracts and retains the best talent in the industry. Employees thrive at Langan, a firm that fosters an inclusive and supportive work environment for all; prioritizes wellbeing, health, and safety; encourages volunteerism and philanthropy; offers workplace flexibility, along with carbon-neutral office spaces; and empowers individuals to contribute their skills and knowledge to make impactful contributions.Job Summary We are seeking a Lead GIS Software Developer to guide a team of developers building geospatial applications on the Esri ArcGIS platform. Join a growing team that excels at innovative and cutting-edge solutions. This role combines hands-on development, project leadership, and technical strategy across the full software development lifecycle. The ideal candidate brings strong experience with React, ArcGIS JavaScript SDK, Python, and modern DevOps practices, with the ability to translate technical vision into delivered solutions. Job Responsibilities Team Leadership & Project Management * Lead a team of software developers, providing technical mentorship, code review, and task prioritization; * Manage project scope, schedule, and deliverables in Jira, ensuring work aligns with organizational priorities and client requirements; * Coordinate development sprints, and progress tracking; report on project milestones and risks; * Work with the Product Manager and Product Owner to coordinate work planning; and * Collaborate closely with PMs and stakeholders to ensure product quality and performance. Software Development * Architect, design, and develop ArcGIS-based web and desktop applications using React and the ArcGIS Maps SDK for JavaScript; * Implement map visualization, geoprocessing, and spatial analysis features in scalable, performant applications; * Develop and maintain APIs and services, integrating with ArcGIS Enterprise, ArcGIS Online, and external systems; and * Apply best practices in secure, testable, maintainable software development. System Integration & DevOps * Oversee CI/CD pipelines, build and deployment automation, and version control workflows using Git, GitHub Actions, and other DevOps tooling; * Collaborate with infrastructure and DevOps engineers to optimize environments for performance, scalability, and reliability; and * Participate in release management and post-deployment validation. Quality & Technical Governance * Define and enforce coding standards, documentation expectations, and peer review processes; * Conduct performance tuning, debugging, and problem resolution for complex system issues; and * Ensure data integrity and integration with SQL Server, PostgreSQL, or other relational databases. Corporate/Organizational * Develops and recommends new approaches and ideas that continuously improve efficiency and services performed; * Promotes the Applied Technologies team throughout Langan by giving demos, presentations, and training to technical and non-technical users; * Works with GIS Analysts to develop new tools to assist in daily workflows; * Works with GIS Manager and Corporate Leader to design and maintain client GIS websites; * Provides programming support to the Digital Solutions team(s) as needed; * Actively participates in a technical professional association; * Pursues advanced training, certification, or graduate school programs; and * Performs other duties as requested. Qualifications * Bachelor's Degree in GIS, Engineering, Computer Science, Information Systems, Business or other related discipline is required; Master's degree a plus; * 7+ years of work related experience with Esri products, including ArcGIS Pro, ArcGIS Enterprise, and ArcGIS Online; * Expert in JavaScript, React, and the ArcGIS JavaScript SDK; * Proficiency in Python for automation and geoprocessing; * Familiarity with .NET (C#) and API development; * Strong understanding of relational databases and best practices (SQL Server/PostgTo view the full job description, click hereApply here: https://www.aplitrak.com/?adid=YmJnZW5lcmljLjc0MjczLjEwNDEyQGxhbmdhbmVuZ2luZWVyaW5nY29tcC5hcGxpdHJhay5jb20