Backend Software Engineer at Castle | Harvard Square

Join Castle, the innovative finance app designed to save homeowners both time and money.Castle empowers homeowners to manage all their home expenses seamlessly in one platform. By tracking transactions, Castle identifies money-saving opportunities, enabling users to save an average of over $10,000.As housing affordability becomes increasingly challenging across the U.S., Castle aims to provide homeowners with superior data for managing their largest asset. We are developing payment infrastructure for the biggest consumer category in the U.S., helping individuals automate, consolidate, and reduce their expenses.In this role, you will be a vital and adaptable member of our engineering team, dedicated to crafting a more intuitive and streamlined experience for homeowners. You will work closely with our Head of Engineering, Head of Design, and fellow engineers to create a user-friendly application that simplifies complex home expense management and fosters long-term trust with our customers. This position is ideal for someone who is enthusiastic about tackling intricate challenges and shaping a compelling product experience in a fast-paced, early-stage company.Your Key Responsibilities Will Include:Develop and maintain RESTful APIs using the Django framework.Manage and optimize our cloud infrastructure.Oversee CI/CD pipelines along with monitoring, logging, and alerting systems.Build pivotal features such as:A bill payment system for processing ACH and check payments;An AI-powered system for recording payments made outside of the Castle environment;A data pipeline that transforms customer data into actionable insights.To Succeed in This Role, You Will Need:Proficiency in Python and the Django framework.Expertise in RESTful API design.Experience with distributed systems architecture.Strong background in cloud infrastructure and associated tools.Familiarity with CI/CD practices and tools.

Join Castle: The Innovative Finance App for Homeowners!At Castle, we empower homeowners to efficiently manage and track all their home expenses in one convenient platform. Our app not only simplifies payments but also identifies opportunities for savings. On average, our users save over $10,000.With housing affordability being a pressing issue in the U.S., we are committed to providing homeowners with superior data management for their most significant asset. Our mission is to create advanced payment infrastructure for the largest consumer sector in the country, helping people streamline and reduce their expenses.As a vital member of our engineering team, you will contribute to crafting simpler, smarter, and more intuitive experiences for our users. Working closely with our Head of Engineering, Head of Design, and fellow developers, you will help create a user-friendly application that demystifies home expense management and fosters long-term trust with our customers.This position is ideal for individuals who are eager to tackle complex challenges and keen on learning new technologies. You will play a key role in shaping a powerful product within an early-stage, high-growth company.

Join Professor Goel’s Computational Policy Lab at the Shorenstein Center, Harvard Kennedy School, where we are on the cutting edge of software development, generative AI, and data science. As a Software Engineer, you will contribute to a dynamic environment focused on media, politics, and public policy through innovative teaching and impactful research initiatives.Application RequirementsTo ensure a complete application, please include:Your resumeA cover letter that includes:A link to your GitHub code demonstrating your technical skills, ideally a project you would enjoy discussing in an interviewA concise description of the linked projectConfirmation of your legal authorization to work in the United States without sponsorship for a minimum of two yearsDuties and ResponsibilitiesAs a Software Engineer, your core responsibilities will include:Executing complex applications and web development tasks for large-scale projects.Designing and developing advanced software systems tailored for extensive research initiatives, focusing on educational technology and generative AI tools.Utilizing the latest advancements in machine learning and natural language processing to create, test, and deploy sophisticated algorithmic tools that support rigorous empirical research.Leading collaborative projects involving AI, machine learning, natural language processing, and large-scale experimentation.Assisting in the design and execution of randomized controlled trials and empirical methods to assess the effectiveness of AI-driven interventions.Working collaboratively with researchers to translate theoretical models into high-performance, production-ready systems.Co-authoring academic publications and technical reports for peer-reviewed journals and conferences.Staying updated on emerging technologies and research developments in AI, computational social science, and causal inference.Adhering to Harvard University’s IT standards, policies, and Code of Conduct.You will engage in projects such as:AI in Education: Designing and testing innovative AI technologies that provide personalized learning experiences for students, exemplified by our flagship tool, PingPong, currently undergoing evaluation in a large-scale randomized experiment across universities.

Join Cambridge Mobile Telematics (CMT), the world's leading telematics service provider, dedicated to enhancing road safety and improving driver behavior. Our cutting-edge AI platform, DriveWell Fusion®, integrates sensor data from millions of IoT devices—including smartphones, proprietary Tags, connected vehicles, dashcams, and third-party devices—melding it with contextual information to deliver a comprehensive analysis of vehicle and driver interactions. Our insights empower auto insurers, automotive manufacturers, mobility companies, and public sector organizations to optimize risk assessment, safety protocols, claims processing, and driver improvement initiatives. Based in Cambridge, MA, with global offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, CMT actively monitors and safeguards millions of drivers worldwide every day.As a Principal Software Engineer within our Trip Processing team, you will play a crucial role in delivering innovative technical solutions at the core of our advanced telematics pipeline. Collaborating closely with product and research teams, you will design, develop, and implement new features while mentoring junior engineers and enhancing our codebase. Your contributions will be vital in upholding our high standards of software quality to meet the expectations of our insurance partners.We seek a collaborative, customer-focused, and imaginative Principal Software Engineer II - Backend who is eager to help make roads safer and drivers more responsible!

Organizational Context/Position Summary:The Engineering & Utilities (E&U) department is responsible for the management and operation of energy supplies, district energy plants, and utility infrastructures across the Cambridge and Allston campuses. This includes a 24/7 facilities-related call center, alarm monitoring, and dispatch services, as well as providing engineering and technical support.This role encompasses senior-level electrical engineering responsibilities for the planning, design, technical support, operation, maintenance, and upgrades of the University’s utility infrastructure. This includes electric, steam, hot water, chilled water, energy/building management, and utility metering systems. The position will also involve executing special short- and long-range projects as directed.Duties & Responsibilities:Collaborate with E&U leadership to develop, refine, and uphold campus utility systems while coordinating with the needs of the University’s Schools and Units. Supervise the installation and relocation of underground utility infrastructures with minimal disruption to the University community. Assume full engineering accountability for utility distribution systems, ensuring capability, flexibility, reliability, safety, economic operation, and expansion considerations. Formulate and manage long and short-range plans and budgets regarding utility distribution upgrades. Generate distribution system statistics, records, and drawings, and contribute to the documentation of utility infrastructure for record-keeping.Maintain effective communication and relationships with governmental agencies to ensure the University’s interests are addressed safely, reliably, economically, and with minimal disruption. Stay updated with relevant government standards concerning employee environmental health and safety. Keep abreast of federal, state, municipal, industry, and University codes, regulations, practices, trends, and guidelines, along with the latest innovations in electrical design and equipment.Engage and work alongside E&U staff and partner groups to leverage systems, data, and reporting for E&U’s KPI monitoring and operational analysis. As stewards of university energy and utility systems, provide technical assistance to Campus Services personnel and support for the operation and maintenance of central energy and utility production/distribution systems as needed. Evaluate and recommend enhancements for preventive maintenance, inspection, and testing programs for the University’s electrical distribution systems, central chilled water and steam plants, and related electrical systems and equipment. Identify and develop cost control opportunities and system cost planning.

Join Harvard University as a Research Infrastructure and Software Engineer, where you will play a pivotal role in enhancing research capabilities through innovative software solutions. Collaborate with cross-functional teams to design, implement, and maintain robust infrastructure that supports diverse research initiatives. Your expertise will enable researchers to focus on their work while you ensure seamless access to data and resources.

Join Harvard University as a Senior Research Software Engineer, where you will play a pivotal role in advancing research through innovative software solutions. You will collaborate with researchers across various disciplines, design scalable systems, and contribute to cutting-edge projects that impact the academic community and beyond.

Harvard University’s Campus Services - Engineering & Utilities department seeks an Operations and Maintenance Analyst to join the team in Cambridge. This full-time position centers on reviewing and refining operational processes that help ensure reliable and efficient campus services. Key Responsibilities Examine current operations and maintenance procedures to understand existing workflows. Pinpoint opportunities for process improvement and greater efficiency. Contribute to efforts that maintain dependable campus services. Work Environment This Cambridge-based role offers the opportunity to support Harvard’s mission and develop professional skills while working alongside a collaborative team.

Join the prestigious team at Harvard University as a High Tension Technician, where you will play a vital role in maintaining and servicing high voltage electrical systems. This position involves working with a variety of electrical equipment and systems, ensuring that they operate safely and efficiently.As a High Tension Technician, you will collaborate with a dedicated team in the Campus Services - Engineering & Utilities department. Your expertise will contribute to the reliable delivery of power across the campus, enhancing the operational effectiveness of our facilities.

Your Contribution at Lila Sciences Be a part of our mission to revolutionize science! We are on the lookout for a skilled Senior Backend Software Engineer to become a vital member of our software platform team. In this role, you will work alongside talented software engineers, laboratory scientists, and machine learning engineers to develop advanced tools for automated scientific analysis and beyond. Your focus will be on Python development, web services, and data engineering, creating impactful scientific applications. If you excel in a dynamic, collaborative environment and advocate for best practices in git, development workflows, and user-centered design, we invite you to apply! Your Projects Service Design & Development: Craft and build high-performance, secure, and well-documented code that seamlessly integrates with our existing services and applications. System Optimization: Identify and resolve system bottlenecks, ensuring high availability and low-latency performance across extensive workloads. Cloud Infrastructure: Utilize AWS services, Kubernetes, and modern DevOps methodologies to construct and deploy scalable production-grade systems. Collaborative Integration: Partner with ML researchers, engineers, and scientists to incorporate data pipelines, APIs, and cloud infrastructure into scientific workflows and services.

The Computational Policy Lab at the Shorenstein Center at Harvard Kennedy School is on the lookout for a Senior Software Engineer with deep expertise in software development, generative AI, and data science. This role is embedded within the Shorenstein Center, which focuses on critical areas of inquiry at the intersection of media, politics, and public policy. As part of our team, you will play a vital role in advancing teaching and research initiatives that strive to make a meaningful impact.Application RequirementsTo be considered, applications must include:A detailed resumeA cover letter that includes:A link to a code sample on GitHub that showcases your technical abilities, ideally a project you would enjoy discussing in an interviewA brief description of the linked projectVerification of your legal authorization to work in the United States without sponsorship for a minimum of two yearsJob-Specific Responsibilities:Your main duties will include:Independently managing complex applications/web development for large-scale projectsDesigning and implementing sophisticated software systems geared towards large-scale research projects, focusing on educational technology and generative AI tools.Utilizing recent advancements in machine learning and natural language processing to create, test, and deploy cutting-edge algorithmic tools that support empirical research.Leading and collaborating on projects that involve AI, machine learning, natural language processing, and extensive experimentation.Contributing to the design and implementation of randomized controlled trials and other empirical methodologies to assess the effectiveness of AI-driven interventions.Working closely with researchers to convert theoretical models into high-performance, production-ready systems.Co-authoring or contributing to academic papers and reports for peer-reviewed journals, conferences, and broader audiences.Keeping up with emerging technologies and research in AI, computational social science, and causal inference.Adhering to Harvard University’s IT technical standards and Code of Conduct.Projects you may be involved in include, but are not limited to:AI in Education: We are developing AI-powered technologies that exceed standard tools by providing customized support for student learning. Our flagship tool, PingPong, is currently being evaluated through a large-scale randomized experiment.

Join Harvard University as a Security Manager, reporting to the Director of Safety and Security. In this pivotal role, you will oversee and coordinate security operations, ensuring the safety of staff, visitors, collections, and physical assets at the Harvard Art Museums. As the front-line supervisor, you'll manage security staff during your shifts, applying your expertise with autonomy and sound judgment.Core Responsibilities:Oversee daily security operations at the Harvard Art Museums, managing staffing levels, post coverage, emergency responses, special events, and group visits.Supervise security personnel by scheduling shifts, monitoring performance, providing training, and addressing issues, with a professional approach focused on customer service.Act promptly in emergencies, including medical, fire, and life safety incidents, documenting incidents according to established protocols.Participate in the recruitment and training of new security personnel.Continuously enhance skills to effectively handle a variety of challenges.Optimize resource deployment for efficient operations.Plan daily workflows and support clerical duties, including payroll and timekeeping.Contribute to policy implementation and procedure development for the Security Department, making recommendations to the Director as needed.Assist in creating and applying new security measures to enhance visitor experiences.Utilize Microsoft Office to maintain records, compose communications, and manage statistical databases.Review video footage as needed for investigations and maintain security databases.Support event-related security activities, managing budgets and suggesting operational improvements.

Join the dedicated Facilities Maintenance Operations team at Harvard University as a Refrigeration Mechanic. In this vital role, you will be responsible for the installation, maintenance, and repair of refrigeration systems across campus. Your expertise will ensure that our facilities operate efficiently and effectively, contributing to our commitment to providing a comfortable and conducive environment for learning and research.

Join the prestigious Harvard University as a Property Administrator in beautiful Cambridge, Massachusetts. In this pivotal role, you will be responsible for overseeing the management and operational efficiency of university housing and real estate properties. Your expertise will ensure that our residents experience the highest standards of living and that our facilities meet the needs of the university community.

Position Overview:The Executive Director (ED) of the Fairbank Center for Chinese Studies (FCCS) and the Harvard China Fund (HCF) is instrumental in creating cohesive research programs that enhance Harvard’s engagement with China. The ED will report directly to the faculty director of the Fairbank Center, ensuring the successful execution of interdisciplinary research initiatives within the humanities and social sciences. Additionally, the ED will coordinate efforts with the faculty chair of the Harvard China Fund to support research and teaching endeavors university-wide, particularly those connected to the Harvard Center Shanghai (HCS).The ED will serve as the face of FCCS and HCF, effectively communicating their mission and initiatives to both internal and external stakeholders. This role will involve outreach to alumni, affiliates, and colleagues to strengthen academic collaborations.Key Responsibilities at the Fairbank Center:As the administrative and programmatic leader of the FCCS, the ED will oversee budgets and lead staff in aligning with the Center’s strategic objectives. Specific responsibilities include:Managing FCCS programs, seminars, and eventsInitiating and overseeing new programs and initiativesFostering relationships to promote Chinese studies at Harvard and beyondConsulting with faculty on project organization and proposal developmentProviding guidance to FCCS visiting scholars, postdoctoral fellows, and graduate student associatesOverseeing the Critical Issues Confronting China website and video productionsManaging the creation of annual reports and communications for executive committee meetingsHiring, training, and managing FCCS staffManaging the FCCS budget and facilitiesCoordinating the Harvard Taipei Academy Summer School programKey Responsibilities at the Harvard China Fund:As the administrative and programmatic leader for the HCF, the ED will work closely with the Executive Director for University Programs at the Harvard Center Shanghai. Responsibilities include:Overseeing local HCF programs and eventsCoordinating meetings of the Harvard China Fund Steering CommitteeBuilding relationships with Chinese institutions and Harvard faculty engaged in ChinaFacilitating connections between US-based Harvard faculty/staff and the Harvard Center ShanghaiManaging the HCF budget from the Cambridge office

**Note: This position will remain open until filled, but candidates are strongly encouraged to submit their applications by Tuesday, March 31, 2026.**Position Overview: The Harvard-Yenching Library is seeking a dynamic, collaborative, and user-focused Librarian for Japanese Studies. Reporting directly to the Librarian of the Harvard-Yenching Library, this role involves the development and management of the Japanese language collection; offering reference and research assistance related to Japanese studies for faculty, students, and researchers; engaging in classroom instruction; and delivering additional services to support the Japanese Studies community at Harvard and beyond.Key Responsibilities: Collaborate closely with faculty to identify current and emerging research and curriculum needs to inform decisions regarding collections and services.Engage with vendors and donors to acquire and ensure the accessibility of primary source materials and scholarly publications in Japanese studies across various formats for both the general and special collections of the Harvard-Yenching Library.Assist colleagues in acquiring relevant Japanese-language scholarly publications for the Chinese, Korean, and Vietnamese studies collections.Partner with faculty and stakeholders to develop and deliver educational programs and classroom instruction related to Japanese studies.Work with Access Services staff and other colleagues to ensure effective management of the Japanese holdings within the Harvard-Yenching Library.Provide comprehensive reference and research support services in Japanese studies for faculty, students, and the wider scholarly community.Regularly update and manage online resource guides specific to Japanese studies.Collaborate with the Special Collection Librarian and Archivist to create and maintain finding aids for Japanese materials in the Special Collection.Coordinate with the Digital Scholarship Librarian and Harvard Library Imaging Services to facilitate the digitization of unique and rare holdings within the Japanese collection.Work alongside Harvard Library Preservation Services to ensure the conservation and preservation of Japanese collection materials.Engage with librarians from other Harvard libraries (e.g., Widener Library, Houghton Library, Fine Arts Library, Law School Library) to develop and promote resources related to Japanese studies.Monitor the acquisition of non-Japanese language materials relevant to Japanese studies throughout Harvard libraries, providing recommendations as needed.Actively participate in relevant committees, working groups, and task forces across Harvard Library.Promote the Japanese Collection through conference presentations and other outreach activities.

Harvard University is seeking a visionary and seasoned fundraising executive to spearhead its Gift Planning program within University Development. With a rich legacy of excellence, Harvard's Gift Planning program is recognized as a leader in the field, managing the largest portfolio of trusts in the industry.The Harvard Gift Planning (HGP) team serves as the primary strategists for planned giving, collaborating with eight schools and several non-school units. HGP is a vital resource for developing policies, generating leads, capturing knowledge, coordinating marketing efforts, training staff, and fostering discussions on best practices across the university.Reporting directly to the Senior Executive Director of University Development, the Executive Director will formulate, implement, and supervise a proactive fundraising strategy for planned gifts. This role will continue to set industry benchmarks while enhancing fundraising efforts across all Harvard schools and units, ensuring top-notch donor relationship management. The Executive Director will act as a programmatic leader, team manager, and frontline fundraiser, particularly for principal gift-level contributions. Additionally, this position will foster collaborative partnerships with the Directors of planned giving teams across the Harvard Schools and enhance the department's relationships with various school and unit partners.Key Responsibilities:Design and implement a comprehensive strategy to expand the University-wide planned giving initiative, establishing measurable objectives to identify, engage, and solicit prospective donors.Oversee a cohesive and effective communication, marketing, and recognition program for donor engagement.Facilitate university-wide meetings for planned giving professionals to discuss innovations and best practices, assessing industry trends to inform Harvard's strategies.Ensure a robust infrastructure for managing the health and impact of Harvard's planned gifts.Lead the integration of the Faculty of Arts and Sciences (FAS) gift planning program into HGP, restructuring teams to align with FAS priorities while maintaining critical processes for FAS-specific needs.

The Office of Physical Resources & Planning (OPRP) at Harvard University is dedicated to providing comprehensive planning, design services, and construction management. We ensure the maintenance, renewal, and operational efficiency of the physical resources across the Faculty of Arts and Sciences (FAS) campus.The Facilities Coordinator for the Harvard College Observatory (HCO) Building Operations team plays a pivotal role in managing daily support functions related to building systems, maintenance, and services for the Observatory.Key Responsibilities:Conduct daily inspections of all buildings and mechanical areas, alongside regular tours of the Harvard College Observatory.Oversee daily maintenance operations and manage the work order system effectively.Coordinate with trades and service providers to address building system repairs and customer requests.Assist with the planning and execution of various maintenance and renewal projects.Engage with building occupants daily to promptly resolve any issues or requests.Deliver exceptional customer service to faculty, staff, and visitors at the Observatory.Maintain key distribution lists and manage access systems requests.Implement safety and security measures for the decommissioned Oak Ridge Observatory in Harvard, MA.Support the maintenance of building databases.Collaborate closely with OPRP and the Office for Sustainability to adopt best practices for operations and maintenance, contributing to FAS's greenhouse gas and energy reduction objectives.Perform other related tasks as required.Working Conditions: This position is essential and critical during emergencies and severe weather, based in Cambridge, MA.Physical Requirements: Must be able to walk throughout facilities, navigate stairs, mechanical rooms, roofs, etc., and lift up to 30 pounds.

Job Overview: As an integral member of the Finance team, the Accounting Assistant plays a pivotal role in the efficient management of accounts payable for the Harvard Radcliffe Institute. Reporting directly to the Associate Director of Financial Operations, this position is crucial for ensuring the accurate and prompt processing of vendor invoices and payments, including those for honoraria and independent contractors.This role involves extensive interaction with the institution's financial systems to ensure that all transactions are accurately coded, thoroughly documented, and comply with both University and Institute policies. The Accounting Assistant will be responsible for managing a considerable volume of routine, time-sensitive transactions and will receive cross-training for various financial processing tasks as necessary.Key Responsibilities: Accounts Payable and Invoice Management:Efficiently processes a large volume of invoices, honoraria, and other payables within the financial systems, ensuring accuracy and timely execution.Reviews invoice submissions for proper coding, required approvals, and necessary supporting documentation in adherence to established policies.Guarantees that payments to vendors, independent contractors, and other individuals are executed in line with contractual obligations and internal timelines.Monitors outstanding invoices and proactively communicates with departments and approvers to resolve issues and mitigate delays.Generates basic reports to track transaction statuses, pinpoint unresolved items, and assist with month-end or year-end closing activities as instructed.Regularly enters, reviews, and tracks accounts payable transactions in institutional financial systems.Processes employee business expense reports, validating receipts, categorizing expenses, addressing discrepancies, and utilizing Concur for accurate and timely reimbursements.Compliance and Documentation:Ensures that all transactions conform to University, Institute, and departmental policies, including procurement and reimbursement guidelines.Guarantees that all necessary backup documentation (contracts, W-9s, receipts, etc.) is collected, organized, and stored according to recordkeeping policies.Aids in identifying and rectifying discrepancies, errors, or missing information, and prepares correcting entries or journals under supervision.Coordination and Customer Interaction:Acts as a primary contact for departments regarding inquiries about invoices and payments, required documentation, and basic policies and procedures.Maintains professional and clear communication with all stakeholders.

Join the prestigious Criminal Justice Institute at Harvard University as a Clinical Instructor. In this role, you will engage with students and contribute to the development of future leaders in criminal justice. Your expertise will help shape the curriculum and provide valuable insights into practical applications of criminal justice theory.