Senior Platform Engineer at Duolingo | Pittsburgh

Duolingo, Inc.Pittsburgh, PA

On-site Full-time

Clicking Apply Now takes you to AutoApply where you can tailor your resume and apply.

Experience Level

Senior

Qualifications

We are looking for candidates with a strong background in software engineering, particularly in platform development. Key qualifications include:Proficient in programming languages such as Python, Java, or Go. Experience with cloud services and architectures. Strong understanding of system design and scalability. Effective communication skills and ability to collaborate in a team environment.

About the job

Join Duolingo as a Senior Platform Engineer, where you'll have the opportunity to shape the future of language learning through innovative technology. In this role, you will work closely with cross-functional teams to design, build, and scale our platform to support millions of users worldwide.

About Duolingo, Inc.

Duolingo is the world's leading language-learning platform, dedicated to making education accessible and engaging. Our innovative approach combines technology with a mission to empower users through language acquisition.

Similar jobs

Browse all companies, explore by city & role, or SEO search pages. View directory listings: all jobs, search results, location & role pages.

1 - 20 of 744 Jobs

Search for Senior Backend Software Engineer At Jacobian Pittsburgh Pa

744 results

Select all on this page (20)

Apply

Senior Backend Software Engineer at Jacobian | Pittsburgh, PA

Jacobian

Full-time|Hybrid|Pittsburgh, Pennsylvania, United States

Role Overview Jacobian is looking for a Senior Backend Software Engineer to help build and evolve our AI-powered radiology reporting platform. This role shapes the backbone of our cloud-native backend services and APIs, which support our product teams and set the bar for security, observability, and scalability. What You Will Do Design and implement backend …

Apr 14, 2026

Apply

Security Assurance Engineer

Jacobian

Full-time|On-site|Pittsburgh, Pennsylvania, United States

Join Jacobian as a Security Assurance Engineer, where you will play a crucial role in safeguarding our systems and data. You will be responsible for implementing security measures, conducting vulnerability assessments, and ensuring compliance with security regulations. Your expertise will help us maintain a secure environment for our clients and stakeholders.

Mar 31, 2026

Apply

Full-Stack Software Developer (.NET) at jacobian | Pittsburgh

jacobian

Full-time|Hybrid|Pittsburgh, Pennsylvania, United States

Become a vital member of our engineering team and play a key role in modernizing a widely utilized medical imaging platform. In this position, you will engage with the full stack of a revenue-critical product that merges cutting-edge web technologies with legacy systems, including backend services and a .NET desktop client.Your contributions will be crucial to both ongoing product development and modernization efforts, as we transition to more scalable, cloud-ready architectures while ensuring the stability of services for our existing customer base.Responsibilities Design, develop, and maintain full-stack features within a complex medical software ecosystem. Enhance existing ASP.NET services through refactoring and architectural improvements. Create backend services, APIs, and data access layers. Utilize relational databases and SQL to maintain performance and reliability. Support a .NET WinForms desktop client. Collaborate on frontend components across legacy Angular and modern React applications. Contribute to hybrid deployment environments, including on-premises and AWS. Engage in code reviews, technical discussions, and cross-functional teamwork. Ensure that solutions comply with security, performance, and regulatory standards.

Mar 10, 2026

Apply

Senior Software Engineer at Woolpert | Pittsburgh, PA

Woolpert

Full-time|$118.2K/yr - $147.8K/yr|On-site|Pittsburgh, PA

Join us in shaping the future through innovative solutions.Woolpert is a globally recognized leader in architecture, engineering, and geospatial services, celebrated for our blend of design excellence and advanced technology. Our dedicated team is passionate about driving progress and fostering the next generation of industry leaders. As a certified Great Place to Work® , we are committed to innovation and creating boundless opportunities for professional development.Position OverviewWoolpert is seeking a Senior Software Engineer to become a part of our dynamic Atlas Labs team, focusing on our Geospatial sector. This role reports to the Director of Product and AI. Atlas Labs is responsible for advancing technology within Woolpert’s Geospatial sector, encompassing AI model development, research and development, software infrastructure, and user-facing products.Note: We are unable to provide visa sponsorship for this position. Applicants must have existing work authorization in the United States.What You Will Do:Engage in the planning, research, design, architecture, development, and testing of software features for Atlas Labs. Daily coding is essential, primarily in Python, with potential use of C++ or JavaScript.Collaborate within a cross-functional Scrum team alongside experts in AI/ML, Geospatial Data, Software Engineering, and GIS.Work closely with both internal and external users to ensure the accuracy, quality, and availability of Atlas Labs software products.What You Will Bring:Substantial experience with commercial software products.Proficient in writing production-level code in Python, ideally with large datasets.Proven experience or academic background in key areas such as:Geospatial Data ProcessingComputer VisionAI & Machine LearningLiDARRobotics/Self-Driving/AutonomyFamiliarity with relevant technologies including:Linux, Docker, and GitHubAI/ML frameworks (TensorFlow, PyTorch)Cloud platforms (Azure, AWS, Google)Nice to Have:Experience with GIS applications such as ESRI, QGIS.

Feb 19, 2026

Apply

Senior Electrical Engineer - Pittsburgh, PA

Hudson Manpower

Full-time|On-site|Pittsburgh, Pennsylvania, United States

Join our dynamic team as a Senior Electrical Engineer based in Pittsburgh, PA, where you will spearhead the design and enhancement of electrical systems that drive our vital infrastructure, including pipelines, compressor stations, and storage facilities. Utilizing your extensive technical knowledge, you will integrate cutting-edge technologies such as automation, real-time monitoring, and energy storage solutions to optimize performance and reduce operational costs.Your role will be pivotal in ensuring safety by implementing effective measures like arc flash mitigation and fault detection systems, adhering to the highest regulatory and environmental standards. You will oversee complex engineering projects from concept through to execution, ensuring alignment with business objectives and timelines. This high-impact position will leverage your leadership and problem-solving abilities, directly contributing to our operational reliability, safety, and strategic growth.With our Core Values guiding your work, you will face challenges that offer opportunities for rapid learning and professional growth.

Mar 31, 2026

Apply

Platform Engineer II at Duolingo | Pittsburgh, PA

Duolingo

Full-time|On-site|Pittsburgh, PA

Join Duolingo as a Platform Engineer II, where you will be integral in building robust solutions that enhance our user experience. You will collaborate with cross-functional teams to develop and maintain our platform infrastructure, ensuring it is scalable and efficient.

Mar 5, 2026

Apply

Senior / Staff EDS Engineer at Waabi | Pittsburgh, PA

Waabi

Full-time|$155K/yr - $230K/yr|On-site|Pittsburgh, PA

Join Waabi, a cutting-edge organization founded by AI innovator Raquel Urtasun, leading the way in Physical AI technology. Our expert team is pioneering the future of autonomous transportation, powering commercial autonomous trucks and robotaxis. Backed by esteemed partners in AI, automotive, logistics, and deep tech, we are at the forefront of innovation.With rapidly expanding offices in Toronto, San Francisco, Dallas, and Pittsburgh, we are seeking diverse, innovative, and collaborative candidates eager to make a positive global impact. For more insights, visit: www.waabi.aiYour Role:- Collaborate within a dynamic team of engineers and research scientists employing an AI-centric approach to facilitate safe, large-scale self-driving solutions.- Spearhead the design and development of automotive-grade electrical distribution systems, encompassing wire harnesses, connectors, load analysis, pinouts, and vehicle networking.- Craft intricate 3D CAD assemblies that integrate both commercial off-the-shelf (COTS) and proprietary hardware across varying vehicle zones.- Customize integration strategies for a range of vehicle platforms, from passenger cars to heavy-duty trucks, while meeting specific technical criteria.- Produce production-ready 2D and 3D CAD packages, implementing GD&T and detailed specifications to ensure precision in fabrication, including development and maintenance of device transmittals.- Leverage extensive knowledge in injection molding, machining, sheet metal, and casting to enhance part design for manufacturability.- Oversee technical execution from initial prototyping to final vehicle launch, collaborating with build technicians to validate hardware functionality.- Diagnose and resolve complex electromechanical interface challenges between proprietary technology and OEM platforms through rigorous analysis.- Manage comprehensive subsystem details, including bills of materials (BOMs) and mass roll-ups, ensuring compliance with safety and regulatory standards.

Jan 12, 2026

Apply

Senior Platform Engineer at Duolingo | Pittsburgh

Duolingo, Inc.

Full-time|On-site|Pittsburgh, PA

Mar 5, 2026

Apply

iOS Core Product Software Engineer - Join Speechify in Pittsburgh, PA

Speechify

Full-time|On-site|Pittsburgh, PA, USA

Role Overview Speechify is looking for an iOS Core Product Software Engineer in Pittsburgh, PA. This role focuses on building and improving the core features of our mobile applications. The work centers on creating software that feels intuitive and reliable for users. What You Will Do Collaborate with product managers, designers, and fellow engineers to deliver updates and new features for Speechify's iOS app Develop software that enhances user experience and encourages engagement Apply iOS development expertise to help shape the direction and quality of our mobile products Location This position is based in Pittsburgh, PA, USA.

Apr 25, 2026

Apply

Senior Supplier Quality Engineer at Motional | Pittsburgh, PA

Motional

Full-time|On-site|Pittsburgh, Pennsylvania, United States

Join Motional as a Senior Supplier Quality Engineer, where you will play a crucial role in ensuring the highest quality standards for our suppliers. You will be responsible for leading quality assurance initiatives, collaborating with cross-functional teams, and driving continuous improvement across our supply chain. Your expertise will help us deliver exceptional products that enhance the safety and reliability of autonomous vehicles.

Apr 1, 2026

Apply

Full Stack Software Engineer at Teraswitch | Pittsburgh, PA

Teraswitch

Full-time|On-site|Pittsburgh, PA

About Teraswitch Teraswitch delivers infrastructure services for critical workloads, operating over 20 data centers worldwide. Our low-latency global backbone supports high-performance bare metal hosting, and we are expanding into new infrastructure offerings. Role Overview Join the Software Engineering team in Pittsburgh, PA as a Full Stack Software Engineer. This role focuses on building and improving the systems behind Teraswitch’s customer portal, APIs, billing platforms, and internal tools. Most work centers on backend development, but a broad understanding of the technology stack and attention to user experience are valued. Collaboration with Infrastructure, Operations, Support, and other teams is essential to deliver secure, scalable, and reliable software. What You Will Do Design, develop, and maintain backend services and APIs using C# and modern .NET frameworks. Own features across customer-facing platforms, billing systems, and internal applications. Build APIs and workflows to support account management, permissions, billing, and service lifecycle tasks. Work on front-end features using React and TypeScript, and contribute to internal tools built with Blazor. Integrate with third-party systems and infrastructure platforms that support business and operational needs. Develop applications using asynchronous, real-time, and event-driven patterns. Support analytics and data workflows in high-volume transactional environments. Improve software quality through code reviews, testing, documentation, and adherence to engineering standards. Promote production readiness by enhancing observability, troubleshooting, and operational processes. Work closely with engineering, product, and other teams to support ongoing improvement.

Apr 17, 2026

Apply

Mechanical Engineer at Waabi | Pittsburgh, PA

Waabi

Full-time|On-site|Pittsburgh, PA

Join Waabi as a Mechanical Engineer, where you will be at the forefront of innovation in autonomous vehicle technology. In this role, you will collaborate with a dynamic team to design, develop, and optimize mechanical systems that drive our cutting-edge products.

Mar 16, 2026

Apply

Staff Backend Software Engineer

Aurora Innovation

Full-time|$171K/yr - $273K/yr|On-site|Pittsburgh, Pennsylvania

About UsAurora is dedicated to advancing the benefits of self-driving technology in a safe, swift, and widespread manner.Discover the Aurora Driver which aims to usher in a new era of mobility and logistics, enhancing safety, efficiency, and accessibility for all.At Aurora, you will collaborate with a team of passionate and intelligent individuals, tackling complex challenges while furthering your expertise. Stay updated on our latest developments by visiting aurora.tech or following us on LinkedIn.Aurora seeks talented individuals from diverse backgrounds who are eager to contribute to the future of transportation, aiming to enhance road safety, deliver essential goods efficiently, and promote accessible mobility for everyone. We are currently looking for a highly skilled Staff Backend Software Engineer to join our Aurora Services Engineering team, playing a pivotal role in developing our fleet management tools.The Aurora Services Engineering team builds comprehensive solutions, including backend services, web applications, mobile apps, and real-time onboard code, facilitating the large-scale commercial operation of autonomous vehicle fleets. Our goal is to create software that manages the commercial aspects of our platform, including task assignment for autonomous vehicles, remote support, fleet management, and customer order processing. As we prepare to significantly expand our fleet and integrate with partners on an API level, our tools are essential for the smooth daily operations of our business.As a Staff Backend Software Engineer, you will be part of a team that develops solutions for autonomous vehicle terminal operations, overseeing the launch and landing of vehicles at locations owned by Aurora and our major clients. You will enhance existing products and design entirely new features, making substantial contributions to the efficiency of terminal operations at Aurora.

Feb 24, 2026

Apply

Senior Software Engineer at Gray Swan AI | Pittsburgh

Gray Swan AI

Full-time|$146K/yr - $210.9K/yr|On-site|Pittsburgh

About Gray Swan AIAt Gray Swan AI, we are dedicated to safeguarding organizations from the evolving threats in AI security. Our innovative solutions focus on real-time threat detection, automated validation, and adaptive defenses tailored for AI labs and enterprises. With a compact yet skilled team of approximately 25 individuals, we are well-funded and rapidly expanding.Our strong market presence and globally recognized clientele empower our employees with significant responsibilities and meaningful equity from the start. This is a high-ownership environment where you will tackle challenging problems, work swiftly, and contribute to shaping both our products and the company’s future.Many join Gray Swan AI because our mission resonates deeply. We engage in practical, impactful work in AI safety, and this sense of purpose is a key reason why engineers and researchers are drawn to our team.Discover more about our work culture.The RoleWe are seeking a passionate Senior Software Engineer eager to engage in full-cycle development. You will work across the entire stack—frontend, backend APIs, and databases—transforming ideas into tangible products and enhancing existing solutions.While you may not have experience with all the tools we utilize, having a robust full-stack background, the ability to quickly learn new technologies, and the willingness to own your projects without excessive process or oversight is essential. As we are still in our growth phase, individuals who thrive on autonomy, responsibility, and speed will find this opportunity appealing!What You’ll Do:Design and develop web applications utilizing modern frontend frameworks such as Svelte.Create intuitive and user-friendly interfaces that enhance user experience.Develop and maintain backend APIs with tools like FastAPI.Optimize and manage database systems such as MongoDB.Collaborate with our machine learning research team to integrate AI functionalities into our products.Who You Are:Proficient in TypeScript or JavaScript.Experience with frontend frameworks like React, Vue, or Svelte.Strong grasp of HTML and CSS.Hands-on experience in building backend APIs.Familiarity with database systems (SQL or NoSQL; MongoDB experience is a plus).

Mar 9, 2026

Apply

Test Automation Engineer at Hudson Manpower | Pittsburgh, PA

Hudson Manpower

Contract|On-site|Pittsburgh, Pennsylvania, United States

Position: Test Automation EngineerType: W2 Contract OnlyLocation: Pittsburgh, PennsylvaniaEligibility: Only U.S. Citizens or Green Card HoldersJob Overview:As a Test Automation Engineer, you will play a pivotal role in ensuring the quality and reliability of our software products. Your responsibilities will encompass understanding project requirements, developing test plans, selecting appropriate automation tools, designing frameworks, scripting for automation, executing tests, and collaborating closely with business and development teams. This role is perfect for candidates passionate about technology, finance, and software testing, providing the opportunity to work with cutting-edge technologies.

Jun 6, 2025

Apply

Senior Software Engineer - Test Infrastructure

Latitude

Full-time|On-site|Pittsburgh, PA, Palo Alto, CA, Detroit, MI

Role Overview Latitude is looking for a Senior Software Engineer focused on Test Infrastructure. This role centers on strengthening testing frameworks to help deliver reliable software. The position is available in Pittsburgh, PA, Palo Alto, CA, or Detroit, MI. What You Will Do Work closely with teams across engineering, product, and QA to support development efforts. Design, build, and maintain test infrastructure that supports software quality. Help improve and extend frameworks used for automated and manual testing.

Apr 16, 2026

Apply

Test Engineer at Gather AI | Pittsburgh, PA

Gather AI

Full-time|Remote|Pittsburgh, PA; Open to Remote (US)

About Us At Gather AI, we are on a mission to revolutionize the supply chain industry through innovative technology. Our cutting-edge, vision-powered platform harnesses the power of autonomous drones and existing equipment to capture real-time data, effectively digitizing workflows that have traditionally been manual and prone to errors. This transformation allows warehouses to operate with enhanced intelligence, safety, and efficiency, thus redefining the standards for timely delivery. If you are eager to contribute to groundbreaking technology and have a meaningful impact in a crucial sector, Gather AI is the perfect fit for you. We are at the forefront of the rapidly advancing robotics field, and we invite you to join us as we reshape the global supply chain, one intelligent warehouse at a time. About the Team You will collaborate closely with systems engineers on our MHE Vision platform, engage with the MHEV team for integrated system testing and debugging, and work alongside the ML team to validate model outputs against ground truth data. You will also liaise with Customer Support and Product Management to address field-reported edge cases and quality priorities. About the Role We are seeking a dynamic Test Engineer to join our Pittsburgh team, enhancing the testing and validation framework for our MHE Vision platform. You will engage with real data and systems, analyzing large transaction datasets to derive ground truth, building and maintaining regression test infrastructure, and participating in integrated system tests within our lab environment. This is a high-impact, early-career opportunity that offers significant ownership and visibility. Your analyses will directly enhance product quality for our customers, and you will have the chance to advance into roles focused on test automation, systems engineering, or QA leadership as the company grows. What You’ll Do Manually analyze extensive transaction datasets (100+ records) to extract ground truth, detect anomalies, mismatches, and edge cases, and validate system outputs against expected behavior. Construct and manage regression test infrastructure, incorporating new edge cases identified from field deployments into the existing test suite. Engage in integrated system tests in our Pittsburgh lab alongside systems engineers, executing test procedures and documenting results. Conduct first-level root cause analysis (RCA) on test failures, clearly communicating issues to the respective engineering teams. Develop structured processes for collecting and cataloging field edge cases into repeatable test cases. Contribute to the continuous improvement of testing methodologies and practices.

Mar 4, 2026

Apply

Machine Learning Engineer at Aquabyte | Pittsburgh, PA

Aquabyte

Full-time|On-site|Pittsburgh, PA

Aquabyte is on the lookout for a talented and passionate Machine Learning Engineer to spearhead the development and deployment of cutting-edge algorithms for fish farms globally. In this role, you will be integral to the software and machine learning model development for our on-camera and cloud-based solutions.Our MissionAt Aquabyte, we aim to transform the aquaculture industry by enhancing its sustainability and efficiency. This ambitious mission is not only fulfilling but essential in promoting environmentally friendly practices in fish farming, ultimately contributing to the reduction of climate change impacts. As the fastest-growing food production sector, we are at the forefront of determining the technological advancements needed to responsibly harvest and conserve our marine ecosystems for future generations.We pride ourselves on our diverse, mission-driven team and are excited to collaborate with individuals who share our passion. If our vision resonates with you, we would love to hear from you!Our ProductCurrently, our focus is on empowering salmon farmers with deeper insights into their fish populations to facilitate environmentally conscious decision-making. Utilizing custom underwater cameras, advanced computer vision, and sophisticated machine learning techniques, we can accurately measure fish weights, assess health conditions, and create optimal feeding strategies in real-time. Our product encompasses three integral components: on-site hardware for image acquisition, cloud-based data processing pipelines, and a user-friendly web application. This multifaceted approach presents numerous exciting challenges across all areas of our technology stack.At Aquabyte, customer satisfaction drives our product development, as we prioritize the needs of fish farmers in every aspect of our work. We are committed to fostering a collaborative, global team.The RoleAs a Machine Learning Engineer, you will play a key role in developing machine learning models and pipelines while also engaging with databases and data infrastructure. Your responsibilities will include conducting comprehensive data analytics and building statistical inference models to understand biological processes. Working within the AI team, you will develop image and video inference pipelines to evaluate the weight, health, and behaviors of both individual fish and larger populations. You will collaborate closely with experienced engineers who bring a wealth of industry and academic expertise to the table.

Dec 5, 2025

Apply

Senior Deployment Specialist at Agility Robotics | Pittsburgh, PA

Agility Robotics

Full-time|On-site|Pittsburgh, PA

Agility Robotics is at the forefront of robotics innovation. Our flagship robot, Digit, is the first of its kind to be deployed in workplaces worldwide. Our dedicated team excels in envisioning, engineering, and delivering robots that possess advanced mobility, dexterity, intelligence, and efficiency—designed specifically to operate alongside humans in environments tailored for them. We tackle engineering challenges daily, inventing novel solutions that will ultimately make robots a common and approachable presence in everyday life. This mission fuels our passion and commitment: enhancing business productivity and enriching people's lives.About The Role:As a Senior Deployment Specialist, you will play a pivotal role in executing Agility's deployment strategy while handling on-site robot operations, general repairs, troubleshooting, and support. Your responsibilities will encompass all technical services across both Agility and client locations, ensuring success in Deployment, Break-Fix Support, Help Desk services, and other critical areas to drive business objectives and promote year-on-year growth. You will be instrumental in defining, implementing, and monitoring the processes and procedures essential for seamless service delivery and fleet management.We seek an individual who thrives under pressure and excels in dynamic, high-stakes situations where plans may need to adapt on-site. You will maintain composure, adaptability, and a solution-focused mindset in the face of unexpected changes. This role requires confidence in engaging with executive leadership, media representatives, clients, and other high-profile stakeholders, while consistently exhibiting professionalism and poise. Opportunities for advancement in our rapidly growing company are abundant.About The Work:Oversee daily robot operations and service delivery, including troubleshooting and repair.Lead all robotic activities during media events and customer demonstrations.Collaborate with cross-functional teams to conduct root cause analyses.

Feb 10, 2026

Apply

Senior Chair Yoga Instructor - Pittsburgh, PA

Svetness Corp

Part-time|On-site|Pittsburgh, PA

Are you a compassionate and motivated personal trainer eager to transform lives? Join our team at Svetness Corp, where we deliver personalized fitness experiences in the comfort of our clients' homes. As a part of our dynamic community, you'll enjoy flexibility and support for your professional growth.We are looking for an experienced Senior Chair Yoga Instructor to conduct safe, engaging, and accessible chair yoga classes specifically designed for senior citizens. Your role will include:Leading chair yoga classes tailored for seniors and beginnersCreating a safe and supportive environment for all participantsModifying exercises and poses to accommodate various mobility levelsPromoting flexibility, balance, and overall well-beingArriving prepared with structured and effective class plans

Apr 13, 2026

Create account — see all 744 results

Browse all companies, explore by city & role, or SEO search pages. View directory listings: all jobs, search results, or location & role pages.