JOB DESCRIPTION Job Description: Full Stack Software Engineer (5+ Years Experience) Position Overview We are seeking a highly motivated Full Stack Software Engineer with 5+ years of professional software development experience to join our engineering team. The ideal candidate will have strong expertise in C# backend development, Object-Oriented Design, and modern desktop application development using WPF. Experience with multithreaded programming using the Task Parallel Library (TPL) and database technologies such as Oracle and PostgreSQL is required. Exposure to TimeSeriesDB solutions is considered a strong plus. This role requires a collaborative team player with a passion for learning new technologies, solving complex technical challenges, and contributing to the continuous improvement of our software platform. Key Responsibilities Design, develop, test, and maintain full-stack software applications using modern software engineering practices. Develop scalable and maintainable backend services using C# and .NET technologies. Implement robust multithreaded and asynchronous solutions utilizing Task Parallel Library (TPL). Design and develop rich desktop user interfaces using WPF (Windows Presentation Foundation). Apply Object-Oriented Design (OOD) principles and design patterns to create clean, extensible, and maintainable code. Design, optimize, and maintain database solutions using Oracle and PostgreSQL. Collaborate with cross-functional teams including software engineers, QA engineers, product owners, and stakeholders. Participate in design reviews, code reviews, and technical discussions. Troubleshoot and resolve software defects, performance bottlenecks, and reliability issues. Contribute to software architecture decisions and continuous process improvements. Document technical designs, implementation details, and development best practices. Required Qualifications Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent practical experience). 5+ years of professional software development experience. Strong proficiency in C# and .NET development. Solid understanding of Object-Oriented Design (OOD) and design patterns. Experience developing multithreaded and asynchronous applications using TPL. Experience building desktop applications with WPF and MVVM architecture. Hands-on experience with Oracle and/or PostgreSQL databases. Strong debugging, troubleshooting, and performance optimization skills. Experience with source control systems such as Git. Excellent written and verbal communication skills. Preferred Qualifications Experience working with TimeSeriesDB technologies or time-series data architectures. Experience developing distributed systems and service-oriented architectures. Familiarity with REST APIs and modern application architectures. Knowledge of automated testing frameworks and CI/CD pipelines. Experience with cloud platforms and container technologies is a plus. Understanding of software security best practices. Soft Skills & Personal Attributes Strong team player with a collaborative mindset. Positive attitude and willingness to learn new technologies and tools. Self-motivated with a strong sense of ownership and accountability. Ability to adapt quickly in a fast-paced development environment. Strong analytical and problem-solving skills. Passion for delivering high-quality, reliable software. What We Offer Opportunity to work on challenging and innovative software solutions. Collaborative and supportive engineering culture. Continuous learning and professional development opportunities. Exposure to modern technologies, architecture, and development practices. Competitive compensation and benefits package. Location: Beverly, MA Job Type: Full-Time Experience Level: Mid-Senior (5+ Years) This position is ideal for an engineer who enjoys both backend and UI development, values clean software design, and has a growth mindset with a passion for learning and teamwork. EQUAL OPPORTUNITY STATEMENT It is the policy of Axcelis to provide equal opportunity in all areas of employment for all persons free from discrimination based on race, sex, religion, age, color, national origin, disability status, medical condition (including pregnancy), veteran status, sexual orientation, marital status, or any other characteristic protected by federal, state or local law. Axcelis will provide reasonable accommodation necessary to enable a disabled candidate or employee to perform the essential functions of the position, unless the accommodation would create an undue hardship for the Company. U.S. BASE SALARY RANGE $122,133.07 - $183,199.61 This base salary range reflects the typical compensation for this role across U.S. locations. Our salary ranges are determined by role and level; individual pay is determined based on multiple factors, including job-related skills, experience, relevant education or training, work location, and internal equity. The range provides the opportunity for growth and progression as you develop within the role. Base pay is one part of our U.S. total compensation package which includes eligibility in the Axcelis Team Incentive bonus plan, and comprehensive benefits package (for regular employees working 20+ hours a week). Want to discover just how far your intellectual curiosity can take you? You’re in the right place. For more than four decades, Axcelis Technologies has been at the forefront of innovation in semiconductor manufacturing technology. Chipmakers around the globe rely on our tools and process expertise to deliver the semiconductors that power modern life—from smartphones and computers to cameras and cars. Our influence is global, with over 30 locations, an installed base of thousands worldwide and a customer list that includes the world’s largest semiconductor manufacturers. Ready to unleash your full potential? Discover just how far you can go, at Axcelis.

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