# Nicole Dalcin > Senior Software Engineer at 2U Location: Miami, Florida, United States Profile: https://flows.cv/nicoledalcin Senior Software Engineer with 6+ years of experience building scalable backend systems, streamlining complex data pipelines, and modernizing legacy platforms. At 2U, I work on the Core Systems team, leading high-impact initiatives involving Salesforce integrations, asynchronous processing, and service architecture using tools like AWS, Kubernetes, and Datadog. I enjoy untangling complexity, documenting decisions clearly, and partnering across teams to build systems that last. My journey into software engineering was shaped by diverse experiences that honed my adaptability, communication, and problem-solving skills. Teaching English in Tokyo taught me to convey complex ideas across language barriers; coordinating operations at a nonprofit sharpened my organizational and stakeholder management abilities; and mentoring aspiring developers at Flatiron School deepened my commitment to clear, empathetic communication. Outside of work, you’ll find me at the gym, hopping on a plane to visit friends and family around the world, and putting Sriracha on just about everything. ## Work Experience ### Senior Software Engineer @ 2U Jan 2021 – Present | Florida Remote As a senior engineer on the Core Systems team, I lead efforts to modernize critical backend systems that process large-scale enrollment and CRM data. I drive architectural decisions, lead cross-team initiatives, and improve performance and maintainability using modern cloud infrastructure. - Architect and maintain a high-volume data ingestion platform processing 100K+ records biweekly as part of large-scale Salesforce org migrations - Refactor legacy Python-based systems, reducing tech debt remediation time by 60% and improving fault tolerance through Datadog alerts, retries, and Kubernetes autoscaling - Design and launch an AWS Lambda-based microservice to decouple lead-sharing logic, increasing clarity between engineering and data science teams and reducing production bugs - Partner with Percona consultants to optimize SQL schema performance and reduce read latency for complex multi-org queries - Develop and maintain Buildkite pipelines for 20+ Kubernetes services supporting high-volume asynchronous processing - Create real-time dashboards in Datadog for monitoring record flow and system health during cross-team Salesforce data migrations ### Software Engineer @ 2U Jan 2020 – Jan 2021 | Brooklyn, New York, United States Focused on performance, system stability, and cross-functional collaboration to support critical data infrastructure and backend services tied to student enrollment and lead handling. - Reduced system error rates by 90% and increased data throughput by 20x using AWS SQS, SNS, and retry mechanisms - Led backend implementation of OneLogin authentication integration for internal tools supporting enrollment workflows - Served as SME for data ingestion related to university lead intake, ensuring correctness across multiple internal and external systems - Developed and tested cross-service Salesforce syncs, improving stability during critical intake periods - Designed and ran interviews for senior IC hiring and helped onboard new engineers with a focus on backend reliability ### Junior Software Engineer @ 2U Jan 2018 – Jan 2020 | Brooklyn, New York Gained hands-on experience with CI/CD, asynchronous task management, and service ownership. Contributed to both development and infrastructure improvements on the Core Systems team. - Managed Kubernetes deployments and CI/CD pipelines using Buildkite, leading to smoother release cycles and fewer regressions - Automated AWS SQS dead-letter queue retries with custom scripts, reducing manual intervention and increasing data integrity - Rewrote and stabilized core data pipelines handling lead and enrollment data, improving resilience and reducing failure rates - Maintained multiple Celery async workers responsible for Salesforce data syncing and field validation across orgs - Independently shipped production features and fixes early in tenure, contributing across Python, SQL, and bash-based tooling ### Technical Coach @ Flatiron School Jan 2018 – Jan 2018 | Washington, District of Columbia, United States As a Software Engineering Coach at Flatiron School, I mentored and instructed a cohort of 50 students in software development fundamentals, focusing on Ruby on Rails and JavaScript with React. My responsibilities included: - Conducting code reviews and providing consistent feedback, which enhanced student understanding and performance. - Collaborating with lead instructors to develop and refine lesson plans and lab exercises, leading to improved educational outcomes. - Facilitating a supportive learning environment that encouraged student engagement and success. ### Administrative Coordinator @ Esophageal Cancer Action Network Jan 2017 – Jan 2018 | Baltimore, Maryland As the Administrative Coordinator at ECAN, I managed front-desk operations, serving as the primary point of contact for in-person visitors and telephone inquiries. My responsibilities included: - Overseeing the receptionist area to ensure a welcoming environment for all stakeholders. - Tracking orders and managing the organization's bank account and calendar to maintain operational efficiency. - Organizing and maintaining mailing lists to support outreach and communication efforts. - Utilizing Salsa CRM to interact with donors through phone calls, emails, and written correspondence, ensuring accurate record-keeping and donor engagement. - Maintaining the organization's website and social media accounts, including content design and development, to enhance online presence. - Assisting with the planning and execution of fundraising events, demonstrating the ability to manage multiple projects simultaneously. ### ESL Teacher @ Belgrave International School Jan 2015 – Jan 2017 | Tokyo, Japan As an ESL Teacher in Tokyo, I was responsible for introducing Japanese students to the English language through carefully developed curricula and engaging educational activities. My key responsibilities included: - Delivering English instruction to students of various age groups, utilizing interactive methods to enhance language acquisition. - Modifying existing lesson plans based on class performance and creating new curricula tailored to classes that did not align with conventional Japanese instruction materials. - Collaborating with colleagues from diverse cultural backgrounds to develop effective teaching strategies and share best practices. - Maintaining flexibility and adaptability to overcome challenges associated with working in a foreign country, ensuring a positive learning environment for students. ## Education ### Full Stack Web Development Program Flatiron School Jan 2017 – Jan 2018 ### Bachelor of Science (B.S.) in Biology University of Maryland Jan 2009 – Jan 2013 ## Contact & Social - LinkedIn: https://linkedin.com/in/nicoledalcin --- Source: https://flows.cv/nicoledalcin JSON Resume: https://flows.cv/nicoledalcin/resume.json Last updated: 2026-03-22