Weekend Performance Engineer Jobs in Boston, MA (NOW HIRING)

• Performance Engineer
• W2 Contract

Performance Strategic Advisors Technology (SAT) is seeking a Software Engineer with strong expertise in Java and hands-on experience building enterprise-scale, cloud-ready distributed systems. We are looking for engineer with expertise in Performance testing. We are looking for engineers who strive for engineering excellence, deliver high-quality solutions, and are passionate about advancing modern technology practices.

The Expertise We’re Looking For

• 6–8 years of full stack development experience with a strong focus on Java and backend engineering
• Proficiency with Java EE, Spring Boot, Spring MVC, and RESTful API development
• Experience building scalable microservices and distributed systems
• Solid understanding of domain driven design utilizing object-oriented programming principles, secure coding, and best engineering practices
• Hands-on experience designing, developing, and operating event-driven systems using Apache Kafka.
• Design & execute performance tests (load, stress, soak, spike, capacity) using Apache JMeter; build reusable test plans and data strategies.
• Instrument and analyze end-to-end system performance with Dynatrace (or similar APM)—trace hotspots across services, JVM/CLR, DB, caches, and external dependencies.
• Engineer for scalability & resiliency—profile bottlenecks, optimize code paths, tune JVM/GC, threads, DB queries, connection pools, caches, and message brokers.
• Automate performance pipelines—integrate tests into CI/CD (e.g., GitHub Actions, Jenkins, GitLab CI) with pass/fail gates based on thresholds.
• Exposure to Docker/Kubernetes and cloud platforms such as AWS or Azure
• Knowledge of CI/CD pipelines (Jenkins, uDeploy or equivalent)
• Strong communication and collaboration skills in Agile environments (Scrum/Kanban)
• Self-driven, detail-oriented, and comfortable operating independently in a fast-paced environment

The Purpose of Your Role

You will play a hands-on role in designing, developing, and enhancing backend services using Java, while also supporting front-end development in Angular as needed. You will collaborate across engineering, product, and architecture teams to build solutions that align with business priorities and technical strategies. Critical thinking, problem solving, and translating requirements into working software are central to this role.

The Value You Deliver

• Designing and implementing backend services, microservices, and APIs using Java
• Supporting and enhancing user experiences through Angular-based front-end development
• Building solutions that meet functional and non-functional requirements, including performance, scalability, and security
• Participating in design reviews, code reviews, and quality initiatives
• Contributing to CI/CD improvements, cloud readiness, and engineering best practices
• Engaging in automated testing and ensuring high-quality, maintainable code
• Collaborating with global teams to drive modern engineering standards

How Your Work Impacts the Organization

Your work enables Fidelity Asset Management Technology to deliver robust, scalable, and innovative tools that support Portfolio Management, Research, Trading, and Investment Operations globally. By building secure and reliable systems, you help the business gain strategic advantage through technology that powers decision-making and operational excellence.

Donato Technologies Inc. is a trusted IT staffing, consulting, and software development partner headquartered in Dallas, Texas. We support clients across industries by understanding their unique business needs and delivering tailored technology and workforce solutions. Our focus is on connecting the right talent with the right opportunity-ensuring clients receive dependable, skilled professionals and candidates receive meaningful career growth and support. We work closely with small to mid-sized organizations to provide flexible, high-quality services that drive performance, innovation, and long-term success.