Staff Software Engineer - Data Query

MongoDB is seeking a Senior Software Engineer to join the Query Integration team in North Carolina. This role centers on advancing core database technologies and refining how queries interact with multiple data sources. Key responsibilities Analyze query execution to identify and address performance and reliability issues Design, build, and maintain high-performance systems that meet diverse client requirements Create new solutions to integrate seamlessly with a variety of data sources Collaborate with teams across the company to deliver new features and product improvements Role impact Work in this position directly shapes MongoDB products and contributes to a better experience for users worldwide.

Join Box, Inc. as a Software Engineer III where you will play a pivotal role in developing our powerful Query Platform. This is an exciting opportunity to work on cutting-edge technology that supports our mission to make the world’s information accessible and useful.

Join our dynamic team at Elastic as a Senior Software Engineer specializing in Query Engine and Database Internals. In this pivotal role, you will leverage your expertise to enhance our cutting-edge Elasticsearch technology, driving the performance and efficiency of our database systems. Collaborate with a team of talented engineers dedicated to delivering high-quality solutions that empower users to harness the full potential of their data.

Team overview The Server Query team at MongoDB develops and maintains a distributed query engine that powers the MongoDB Query Language. This group manages every phase of query processing, including parsing, optimization, plan selection, and execution. Their work also extends to geospatial search and update systems, directly influencing how users interact with and extract insights from their data. Location and work flexibility This Software Engineer III - Query Optimization position is open to candidates based in New York City, Atlanta, Boston, or remotely from the East Coast. MongoDB supports flexible hours to enable collaboration across time zones. The company’s presence spans North America and Europe, with offices in cities such as Dublin, Berlin, Paris, Amsterdam, London, Sofia, Madrid, and Milan. What you will do Design and build core components for a distributed, flexible-schema document database Tackle complex problems in query optimization and execution Enhance data processing efficiency and user experience for transactional, time-series, and analytical workloads Contribute to all stages of query handling, from parsing through execution Why this role This role offers the opportunity to address challenging technical problems that shape how organizations use and analyze data. Collaborate with engineers who value performance and usability, and help define the future of MongoDB’s distributed query capabilities.

Join Elastic as a Principal Software Engineer, where you'll play a pivotal role in shaping our Query Engine and Database Internals for Elasticsearch. We are looking for innovative minds who thrive on solving complex challenges and are passionate about building scalable systems. At Elastic, you'll collaborate with a talented team to optimize performance and ensure the reliability of our data solutions.

About Ditto:Ditto is pioneering the future of data transmission at the edge. Our vision is to empower developers to craft resilient, real-time applications that function seamlessly under any network conditions. Whether you find yourself in a stadium, on an airplane, or at a remote military base, Ditto's advanced peer-to-peer synchronization engine ensures devices remain interconnected and data remains reliable, even without internet access. Backed by over $145 million in funding and trusted by major organizations such as Chick-fil-A, Delta Airlines, and the U.S. military, Ditto facilitates mission-critical experiences across various sectors including aviation, retail, travel, hospitality, and defense. As a rapidly growing global startup, we are devoted to cultivating a diverse and inclusive workforce that embodies the diverse perspectives essential for tackling the world’s most challenging connectivity issues.About the Position: The Query Engine team is responsible for developing the primary interface that enables our customers to interact with their data and the Ditto system through the Ditto Query Language (DQL). Our team extensively utilizes DQL across both the cloud database and on-device SDKs, collaborating closely with multiple teams to ensure smooth integrations. This specialist group is dedicated to helping customers maximize their Ditto experience while providing an intuitive, SQL-like interface.Your Responsibilities:Collaborate with product managers and fellow engineers to shape the future of our technology.Troubleshoot production challenges and devise solutions that align with Ditto's mission for a high-performance, self-healing, and reliable mesh network.Design and implement subsystems for data distribution collection and index statistics collection.Create a query cost-based optimizer informed by collected data distributions, and a fallback rule-based query optimizer for scenarios with insufficient data.Contribute to the implementation of various query engine features as required.Draft RFCs, document system architecture, and collaborate with other teams at Ditto.Estimate project timelines and communicate effectively with management and the wider team regarding project progress.Foster a positive team culture by exemplifying Ditto’s values of Trust, Communication, and Continual Improvement.

Waymo is pioneering the future of transportation with its cutting-edge autonomous driving technology, striving to become the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, Waymo has dedicated itself to developing the Waymo Driver—The World's Most Experienced Driver™—to enhance mobility access and prevent traffic-related fatalities. With over ten million rider-only trips powered by the Waymo Driver, which has autonomously traveled over 100 million miles on public roads, we are transforming the way people experience transportation across 15+ U.S. states.Your Role:Design, develop, test, and launch innovative features for SQL-based query APIs and systems to assess and generate metrics for Waymo Driver evaluations.Analyze and enhance the performance and scalability of the query execution engine.Craft clean, testable, and maintainable code in C++ and SQL, adhering to industry best practices.Monitor system health and performance, proactively resolving issues as they arise.Collaborate with data scientists, product managers, and engineers to identify data requirements across Simulation, Planner, Behavior, Perception, and Commercialization, ensuring alignment with analytical needs.

At Vertex Sigma Software, we envision a world where everyone can engage seamlessly with technology through natural conversation. Our innovative Voice AI solutions span various languages and applications, enhancing user experiences in cars, restaurant ordering, and beyond. We empower our clients to elevate their brands in profound and impactful ways.We are seeking a Senior Software Engineer to become a vital member of our Menu Services team. In this role, you will be instrumental in developing and optimizing systems that facilitate restaurant menus and point-of-sale integrations. Your contributions will enable efficient AI-driven ordering and management solutions, directly influencing millions of voice AI interactions annually and transforming restaurant operations.If you have a passion for AI-driven services, large-scale backend systems, and functional programming, we invite you to connect with us!Key Responsibilities:Tackle ambiguous and complex technical challenges.Align customer requirements with technical design for rapid value delivery.Enhance our onboarding and operational excellence capabilities continuously.Collaborate with product and platform teams to create world-class systems.Contribute to systems managing millions of voice AI conversations each year.Identify and eliminate inefficiencies within systems and processes.Qualifications:We would love to hear from you if you possess:• At least 5 years of experience in software engineering.• A strong interest in functional programming, with experience in Clojure being a significant advantage.• Excellent system design capabilities, focusing on standardizing processes, data, and interfaces.• Proven experience in architecting scalable backend projects.• Strong problem-solving abilities and a growth mindset—open to learning, feedback, and new challenges.• Experience in gathering customer feedback to enhance systems.Preferred Qualifications:• Background in AI-driven or voice-enabled applications.• Experience in designing RESTful or GraphQL APIs for high-traffic applications.• Familiarity with backend infrastructure, APIs, or cloud platforms.• Experience utilizing LLMs to develop software.Why Join Us?• Engage with groundbreaking AI products that influence how users interact with technology.• Develop applications on a substantial scale, affecting millions of real-world interactions.• Enjoy the flexibility of a 100% remote position (US hours).

Overview At Abax Health, we are dedicated to bridging the gaps in care and enhancing the connectivity of healthcare data to elevate patient and provider outcomes. We are in search of a proficient Senior Database Engineer who will spearhead the design, optimization, and management of enterprise-level data systems that drive our analytics, reporting, and business intelligence initiatives. This pivotal role combines extensive technical database expertise with architectural leadership, ensuring performance, scalability, and data integrity throughout our data ecosystem. The Senior Database Engineer will operate at the crossroads of engineering and business operations, tasked with maintaining fast, reliable, and scalable data pipelines and warehouses as we transition from an early-stage client base to a multifaceted enterprise. Key Responsibilities Architect and enhance data warehouse platforms and the supporting database systems. Design and implement efficient data ingestion and transformation pipelines (ETL/ELT) utilizing tools such as ADF, DBT, or equivalents to guarantee reliable data ingestion from diverse sources (SFTP, HL7, FHIR, etc.). Develop and sustain logical and physical data models that back internal analytics, dashboards, and client-facing reporting applications. Optimize database performance, scalability, and reliability through tuning, indexing strategies, and proactive monitoring across both production and staging environments. Lead strategic data initiatives by establishing architectural standards that promote scalability, efficiency, and cost-effectiveness across the data platform. Collaborate with software engineering, implementation, operations, and business teams to ensure alignment on data requirements and governance practices. Administer, maintain, and monitor database systems to uphold availability, integrity, recoverability, and secure access in compliance with disaster recovery and business continuity best practices. Implement source control and DevOps methodologies (e.g., GitHub, ADO, etc.) for database change management, CI/CD automation, and deployment of database alterations. Mentor junior engineers in SQL development, reporting, analytics, and performance tuning best practices. Establish and enforce data governance standards for security, compliance, and consistency across all environments. Qualifications Over 10 years of experience in database engineering, architecture, or administration, particularly with production-grade SQL Server environments. Demonstrated experience in designing and automating ETL pipelines and data warehouse solutions that support analytics, reporting, and business intelligence platforms (e.g., Power BI, Tableau). Deep expertise in database performance tuning, optimization, and maintenance. Solid understanding of data governance standards and best practices. Effective communication skills for cross-functional collaboration.

bpcs is hiring an AI Query Evaluation Specialist to support Copilot Competitive Intelligence. This position is fully remote. Role overview This role centers on evaluating AI-generated queries and refining how competitive intelligence is gathered and assessed. The work directly supports the quality and accuracy of AI-driven solutions within the company. Key responsibilities Assess AI query results related to competitive intelligence. Contribute to improving evaluation processes for AI outputs. Help ensure solutions meet high standards for accuracy and effectiveness. Requirements Experience or strong interest in AI query evaluation. Ability to work independently in a remote setting. Keen attention to detail and quality standards.

Join our dynamic team at dstaff as a Senior Software Engineer. We are searching for a talented individual who is passionate about technology and thrives in a collaborative environment. You will have the opportunity to work on cutting-edge projects, contribute to innovative solutions, and enhance your skills in a supportive atmosphere.

Join our innovative team at Aevexa Aerospace as a Senior Software Engineer, where you will play a pivotal role in the development of cutting-edge aerospace technologies. We are looking for a dynamic and experienced software engineer who is passionate about transforming ideas into reality through advanced software solutions.

Company OverviewEdgesource Corporation has been at the forefront of innovative technology solutions for over 25 years, catering to clients including the Department of Defense (DOD), Department of Homeland Security (DHS), Department of State (DOS), the U.S. Intelligence Community, law enforcement agencies, and various federal, state, and commercial entities. Our mission ranges from delivering specialized technical support for the DOD Counter Unmanned Aerial Systems (CUAS) efforts to tackling pressing cybersecurity challenges as a prime contractor with the DHS Cybersecurity & Infrastructure Security Agency (CISA). Joining Edgesource means embracing an opportunity to engage in meaningful, interesting, and impactful work.Position OverviewWe are on the lookout for a highly skilled Senior Software Engineer to become an integral part of our Agile development team. You will play a key role in supporting mission-critical enterprise systems within a secure environment. This position demands a hands-on technical leader capable of designing, developing, and modernizing software solutions using .NET Core, while facilitating the transition of legacy systems to a cloud-first architecture.

About Stellar Health:In the evolving landscape of US Healthcare, the traditional fee-for-service reimbursement model has often prioritized the volume of patient interactions over quality outcomes. At Stellar Health, we are dedicated to changing this paradigm by enabling primary care providers to prioritize patient health. Our innovative platform integrates technology, human expertise, and analytics to deliver real-time patient information and empower care teams through actionable insights and incentives that reward their efforts in maintaining patient wellness. The Stellar App serves as a user-friendly, web-based tool that provides practices with a checklist of recommended actions to optimize care quality. By completing these actions, providers and care teams receive monthly compensation while payors benefit from reduced healthcare costs.Stellar is a US-based health-tech firm supported by prominent venture capitalists, including General Atlantic, Point72, and Primary Venture Partners. With a proven product and operating model, we have demonstrated our ability to make a significant impact on physician practices and their patients.About the Role:As a Senior Software Engineer, you will play a pivotal role in constructing and maintaining critical components of our data and application platform. Join a seasoned engineering team that fosters a culture of collaboration and innovation, where every engineer’s contributions are valued and directly influence the company’s success.The mission of the Platform team is to provide Stellar with state-of-the-art, reliable, and user-friendly infrastructure for data ingestion, storage, processing, and analysis. Your work will be integral in helping us enhance patient access to healthcare.The Platform TeamOur team manages external integrations, data ingestion, normalization, and transformation. Collaborating with our technical implementation and analytics teams, we ensure data quality and performance metrics while enabling advanced analytics and data science initiatives.On this team, you will configure and manage ETLs, orchestrating complex workflows that process billions of claims for millions of patients. You will also create foundational data models that empower our analytics partners to develop rapidly and securely on a robust data infrastructure.

At Crusoe, our vision is to enhance the availability of energy and intelligence. We are at the forefront of developing solutions that empower individuals to innovate boldly with AI, all while ensuring that we uphold principles of scalability, speed, and sustainability.Join us in driving the AI revolution through sustainable technology at Crusoe. You will play a pivotal role in fostering innovation, making a significant impact, and collaborating with a team that is leading the way in responsible and transformative cloud infrastructure.About the RoleWe are on the lookout for a Senior Software Engineer to take on the role of founding engineer within our new Enterprise Software Engineering team in IT. You will work closely with the Director to develop internal tools, automation processes, and integrations that remove manual tasks and address critical operational challenges across the organization.This role transcends traditional enterprise IT positions. You will leverage AI-assisted development as your primary method, delivering production-quality software within days instead of months, while laying the groundwork for future team members. As you grow in this role, your primary contributions will focus on defining specifications, context, and reusable patterns to guide AI agents, while still engaging in hands-on coding for the most complex challenges.Your ResponsibilitiesDesigning and deploying internal tools, automation, and integrations that provide measurable benefits across Finance, Operations, HR, and other business functions.Utilizing AI-assisted development as your standard workflow, which includes drafting specifications, creating prompts, reviewing AI-generated code, and iterating quickly.Establishing foundational technical patterns such as coding standards, project conventions, reusable components, and context files that facilitate AI-driven development.Creating and managing integrations between enterprise systems through APIs, middleware, and data pipelines.Developing solutions across a versatile environment that combines cloud application platforms with internal GPU compute for AI workloads.Collaborating with business teams during rapid prototyping sessions, then refining prototypes into production-ready systems complete with testing, monitoring, and documentation.Setting up CI/CD pipelines, automated testing, and quality assurance measures for all solutions delivered.Taking ownership of solutions from end to end, covering everything from specification and implementation to deployment and production support.

At Justworks, we foster a collaborative and laid-back work environment where innovation thrives. As a Senior Software Engineer, you will take ownership of significant projects, work alongside talented teams, and contribute to solutions that enhance customer experiences. Your role will focus on building and maintaining robust applications while ensuring the security and efficiency of our systems.

About CeribellCeribell is at the forefront of medical technology, dedicated to revolutionizing the diagnosis and management of patients with serious neurological conditions. Our innovative Ceribell System is a cutting-edge, point-of-care electroencephalography (EEG) platform that meets the critical needs of patients in acute care settings. Already in use at hundreds of community hospitals, large academic institutions, and major integrated delivery networks across the nation, our team shares a collective mission to enhance critical care with our rapid seizure detection technology. Join us in making a difference!Position Overview:We are seeking a talented Senior Software Engineer with a strong backend focus to join our dynamic team in developing the next generation of EEG web applications that cater to vital medical use cases. In this role, you will be instrumental in designing, maintaining, and enhancing the backend systems for our EEG Portal web application, which is essential for healthcare providers, researchers, and clinical teams to access, monitor, and analyze EEG data. You will collaborate closely with fellow engineers, product managers, and stakeholders to ensure that our backend systems are robust, secure, and scalable within a medical environment.Key Responsibilities:Backend Development & Maintenance:Design, develop, and maintain backend systems to support the EEG Portal application, ensuring dependable performance and adherence to healthcare standards.Implement new features and enhancements to meet clinical and research demands, prioritizing efficiency and scalability.Troubleshoot, debug, and optimize backend systems to guarantee maximum uptime and reliability for users.Database Management:Write optimized database queries and execute data migration strategies.Monitor and fine-tune database performance, including indexing, replication, and backup processes.API Development & Integration:Develop and maintain RESTful APIs that interact with the frontend and other systems.Ensure APIs are secure, well-documented, and capable of handling large volumes of sensitive medical data.Integrate third-party services and platforms as needed to enhance functionality.Ensure backend services comply with regulatory standards, including data encryption, authentication, and auditing.

Join our team at avalore as a Senior Software Engineer, where you'll be instrumental in developing, maintaining, and enhancing sophisticated software systems. Your expertise will contribute to various areas, including processing-intensive analytics, novel algorithm development, large data set manipulation, real-time systems, and business management information systems.In this role, you'll work both independently and collaboratively within a team. You'll review and test software components to ensure they meet design requirements, document your findings, and resolve software issues efficiently. Leveraging appropriate software development and design methodologies, you will provide critical input on system design, including hardware/software trade-offs and the use of Commercial Off-the-shelf (COTS) and Government Off-the-shelf (GOTS) solutions.Analyze user requirements to derive software design and performance specifications.Debug existing software and rectify defects.Recommend enhancements to documentation and software development process standards.Design and code new software or modify existing applications to integrate new features.Integrate existing software into new or modified systems or operating environments.Develop basic data queries for existing or proposed databases or data repositories.Write or review software and system documentation.Lead a team when appropriate, based on the software development process used for each project.Design or implement complex database interfaces and queries.Develop and implement algorithms that meet or exceed system performance and functional standards.Assist in developing and executing test procedures for software components.Analyze system performance standards, confer with users or system engineers, assess systems flow, data usage, and work processes, and investigate problem areas to develop software solutions.Modify existing software to correct errors, adapt to new hardware, or enhance performance.Utilize scientific analysis and mathematical models to design, develop, and modify software systems.Implement complex algorithms while adhering to stringent timing, system resource, or interface constraints.Perform quality control on team outputs.Implement recommendations for improving documentation and software development process standards.Oversee software development teams and ensure adherence to project constraints.

About GenScriptGenScript Biotech Corporation (Stock Code: 1548.HK) is a leading global biotechnology group, established in 2002, with a robust presence across North America, Europe, Greater China, and Asia Pacific. Our operations are built around pioneering gene synthesis technology, offering services in Life Science CRO, enzyme and synthetic biology products, biologics development and manufacturing, and cell therapy.At GenScript, we are driven by our mission to be the most trusted biotech company worldwide, enhancing health for both people and nature through our innovative biotechnology solutions.Description:As a Senior Software Engineer, you will architect and develop essential software for cutting-edge automated oligo synthesizers, facilitating exact control over mechanical, fluidic, and electrical systems. You will manage the entire software stack, from low-level hardware communication (USB/SPI/serial) and embedded firmware integration to GUI development, data analysis tools, and database management, ensuring smooth operations for our scientific users.