Mid-Level Full-Stack Software Engineer (C#/.NET, React)

Join Gearset, the premier DevOps platform for Salesforce, where our users can seamlessly develop and manage various facets of their Salesforce projects, from intricate CI/CD pipelines to robust disaster recovery solutions.The Gearset platform operates independently of Salesforce, utilizing public APIs for integration. While our engineering team does not work directly within the Salesforce environment, we collaborate closely with domain experts to devise innovative solutions to the unique challenges they encounter, enabling rapid and secure Salesforce modifications.Our commitment to excellence is reflected in our agile practices: we release multiple updates daily and continuously enhance our observability and infrastructure tools. This allows us to swiftly identify and address issues, ensuring that we deliver timely improvements that delight our users.As a product-centric company founded by engineers, we understand the importance of fostering a vibrant engineering culture, promoting teamwork, and maintaining tight feedback loops. We are confident in our product and market potential, and we have ambitious plans for the future.

Your Impact at Lila Be a part of revolutionizing the scientific landscape! We are on the lookout for a Senior Full Stack Software Engineer to enhance our software platform team. In this role, you will partner with fellow software engineers, laboratory scientists, and machine learning experts to develop innovative tools aimed at streamlining automated scientific analyses. This position encompasses both web services and data engineering, with a robust focus on Python development tailored to scientific applications. If you excel in a collaborative, dynamic environment and apply best practices in version control, development workflows, and user-centered design, we encourage you to reach out! What You'll Be Building Design & Build Services and Front-ends: Create high-performance, secure, and well-documented code that seamlessly integrates with our existing ecosystem of services and applications. Performance & Reliability: Identify and rectify system bottlenecks, ensuring high availability and low-latency performance across extensive workloads. Cloud & Infrastructure: Utilize AWS services, Kubernetes, and contemporary DevOps practices to construct and deploy production-grade systems at scale. Cross-Functional Collaboration: Collaborate with machine learning researchers, engineers, and scientists to weave together data pipelines, APIs, and cloud infrastructure within scientific workflows and services. What You’ll Need to Succeed Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. 4-8 years of experience in software development within a commercial context. Full Stack Development: Proven experience in developing web applications across the complete stack using React, TypeScript, Monorepos like Nx, TailWind, FastAPI, SQL/NoSQL, Python, and Pydantic. Cloud & DevOps Expertise: Hands-on experience with AWS, GCP, or Azure; deep understanding of Kubernetes, containerization, infrastructure-as-code (Terraform, CloudFormation), and CI/CD pipelines (GitHub Actions). Communication & Collaboration: Excellent listening skills and a record of effective cross-functional teamwork with scientists, data engineers, and product teams; adept at conveying complex concepts to diverse audiences. Problem Solving: Established ability to tackle complex backend challenges, weighing trade-offs between scalability, performance, and maintainability.

At Cambridge Mobile Telematics (CMT), we are leading the charge in telematics solutions, dedicated to enhancing road safety globally. Our innovative AI-driven platform, DriveWell Fusion®, integrates sensor data from millions of IoT devices—ranging from smartphones and proprietary Tags to connected vehicles and dashcams—along with contextual data to provide a comprehensive view of vehicle and driver behavior. Our insights empower auto insurers, automakers, commercial mobility companies, and public sector organizations to improve risk assessment, safety measures, claims processes, and driver enhancement programs. With our headquarters based in Cambridge, MA, and additional offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, we protect and support millions of drivers worldwide each day.As a Senior Full Stack Software Engineer, you will play a pivotal role in designing, developing, and maintaining scalable web applications that fuel our telematics platform. You will navigate the entire tech stack, crafting intuitive user interfaces and robust backend systems while collaborating closely with product, design, and data teams. This dynamic role is ideal for a hands-on engineer who thrives in a fast-paced environment, fosters mentorship, and possesses a strong sense of ownership and curiosity. Your contributions will significantly impact user experience with CMT’s products, reinforcing our mission to enhance road safety globally.CMT seeks a highly collaborative, customer-focused, and innovative Senior Full Stack Software Engineer who is eager to join us in making roads safer by empowering drivers!

Join EverQuote as a Senior Full Stack Software Engineer on our B2B Agency Feature Team, a pivotal group shaping the future of our Agency business. This is more than just an engineering position; you will collaborate closely with all platform teams to design, develop, and scale agency features that fuel EverQuote's B2B growth. Your contributions will significantly impact how agencies utilize our platform and drive revenue on a large scale. Take charge of creating innovative, user-centric applications and interactive services that are quick, reliable, and built for substantial growth. Envision bold UI advancements, seamless front-end architecture, and essential experiences that agencies rely on. Become part of a dynamic, collaborative team of engineers who prioritize speed and meaningful output. You won't just contribute; you'll lead as a technical mentor, enhancing your team's capabilities through your expertise in modern front-end development, outstanding UI/UX design, and the progressive use of AI tools to boost developer efficiency. If you're eager to create impactful products, nurture a talented team, and influence a rapidly scaling platform, this position is for you. This role is hybrid, requiring in-office attendance several days a week. The base salary range for this full-time hybrid position is $150,700 to $177,300. Starting salaries will typically fall within the lower range. Depending on their specific role, level, and responsibilities, employees may qualify for company variable compensation or equity programs.

Join Cambridge Mobile Telematics (CMT), the largest telematics service provider globally, dedicated to enhancing road safety. Our innovative AI-driven platform, DriveWell Fusion®, integrates sensor data from millions of IoT devices, including smartphones and connected vehicles, with contextual information to deliver insights that empower auto insurers, manufacturers, and public sector organizations to improve risk assessment and driver safety. With our headquarters in Cambridge, MA, and global presence across cities like Budapest, Chennai, Seattle, Tokyo, and Zagreb, we protect millions of drivers daily.We are on the hunt for a talented Principal Software Engineer who possesses deep expertise in full-stack development. In this pivotal role, you will lead intricate projects, mentor teams, and contribute to the technical evolution of our platform, driving its ongoing success.If you are a collaborative, innovative thinker passionate about making roads safer through technology, we invite you to apply!

Location: Cambridge, UK – This role offers flexible working options. Candidates must be based or willing to relocate to a comfortable commuting distance from our Cambridge office for onsite attendance as needed.Are you an enthusiastic full stack engineer eager to create scalable, high-performance systems that enhance player experiences? Join our Subscriptions and Payments team at Jagex, where you will play a key role in developing and maintaining the systems that facilitate digital goods and subscription purchases across the RuneScape franchise. Your contributions will directly empower millions of player transactions globally.In this impactful role, you will help build secure, robust, and scalable services while mentoring junior engineers and continuously enhancing the reliability and performance of our subscription and payment platforms.Your Responsibilities:Engage in all phases of the Software Development Lifecycle, producing secure code supported by automated testing, peer reviews, documentation, and deployment.Develop and maintain backend services utilizing Java and Spring Boot in a microservices architecture.Create frontend applications using JavaScript/TypeScript and modern frameworks like React, Next.js, and Node.js.Design and integrate RESTful APIs and publish-subscribe messaging systems.Ensure services are monitored for scalability, high availability, and performance.Support production systems and participate in an on-call rotation.Drive system improvements, performance optimizations, and architectural advancements.Assess and implement both commercial and in-house technical solutions as appropriate.

Join Cambridge Mobile Telematics (CMT), the leading telematics service provider dedicated to enhancing road safety and driver performance. Our AI-powered platform, DriveWell Fusion®, aggregates data from millions of IoT devices, including smartphones and connected vehicles, to deliver actionable insights for auto insurers, automakers, and mobility companies. Headquartered in Cambridge, MA, with a global presence in cities like Budapest, Chennai, and Tokyo, we protect millions of drivers every day.We are on the lookout for a talented Principal Software Engineer to spearhead ambitious projects while mentoring our engineering teams in developing robust and scalable full-stack solutions. This pivotal role involves setting the technical direction for our platform and contributing to its ongoing success.If you are a collaborative, innovative, and customer-focused engineer eager to make a real impact on road safety, we invite you to apply!

Location: Cambridge, MA (Eastern Time / UTC -4)Relocation package: AvailableStart date: ASAPLanguages: English (required)About the RolePragmatike is collaborating with an innovative AI startup, acknowledged as a Top 10 GenAI company by GTM Capital, founded by researchers from MIT CSAIL. We are looking for a Principal Full Stack Engineer specializing in Node.js + React who possesses extensive hands-on expertise in crafting scalable, high-performance web applications that support intricate, data-driven AI solutions utilized by Fortune 500 clients.This position is perfect for those who relish taking ownership of features from inception to completion—encompassing backend architecture and refined frontend delivery. The ideal candidate will be adept at designing APIs, constructing scalable services, developing user-friendly interfaces, and deploying production-ready features at scale.ResponsibilitiesDesign, develop, and maintain scalable full stack applications using Node.js, React, and TypeScript.Architect and create robust backend services, APIs, and data models.Build modern, production-grade web interfaces with React.Own features throughout the entire lifecycle, from technical design and implementation to deployment and production support.Enhance performance across the stack, including frontend rendering, API latency, and database queries.Collaborate closely with product, design, and AI/ML teams to deliver user-centered features.Establish best practices for testing, code quality, observability, and CI/CD processes.Enhance overall system architecture, scalability, and developer experience.Diagnose and resolve production issues spanning both frontend and backend systems.QualificationsMinimum of 5 years of experience as a Full Stack Engineer.Strong expertise in Node.js (including frameworks such as Express, NestJS, or similar).Proficient in React and TypeScript in production settings.Experience designing RESTful APIs and working with databases like PostgreSQL or MongoDB.Solid understanding of modern web architecture and principles of distributed systems.Proven experience in building scalable applications and deploying them effectively.Exceptional problem-solving skills and a passion for technology.

Your Impact at Lila Sciences Become a pivotal part of the scientific revolution! We are looking for a Principal Software Engineer with extensive full-stack expertise to join our innovative software platform team. In this collaborative role, you will partner with software engineers, lab scientists, and machine learning experts to develop advanced tools for automated scientific analysis and beyond. Your responsibilities will encompass web services and data engineering, with a strong focus on Python development tailored for scientific applications. If you excel in a teamwork-oriented, fast-paced setting and adhere to best practices in version control, development workflows, and user-centered design, we would love to connect with you! Key Contributions You Will Make Design & Build Services and Front-ends: Create high-performance, secure, and well-documented code that seamlessly integrates with our existing services and applications. Performance & Reliability: Identify and resolve system bottlenecks, ensuring high availability and low-latency performance across large-scale workloads. Cloud & Infrastructure: Utilize AWS services, Kubernetes, and contemporary DevOps methodologies to build and deploy production-ready systems at scale. Cross-Functional Collaboration: Collaborate with machine learning researchers, engineers, and scientists to integrate data pipelines, APIs, and cloud infrastructure into scientific workflows and services.

Collaboration Fuels Our Innovation. Join Roku, Revolutionizing Television ViewingRoku stands as the leading TV streaming platform across the U.S., Canada, and Mexico, with aspirations of transforming every television globally. As pioneers in TV streaming, our mission is to serve as the platform that unites the entire TV ecosystem, linking consumers to beloved content, enabling publishers to cultivate and monetize extensive audiences, and equipping advertisers with unique tools for consumer engagement.From day one at Roku, your contributions will be recognized and valued. We are a fast-evolving public company where every team member plays a significant role. Embrace the opportunity to delight millions of TV streamers globally while gaining invaluable experience across diverse disciplines. Role Overview At Roku, you will work on a platform utilized by real users. Showcase your achievements to friends and family, and see your work in leading electronics retailers.As a senior member of the Roku Core OS team, you will take part in designing and developing the core/system components of Roku OS. We seek a senior software engineer with profound expertise in embedded Linux development and integration.Roku boasts a proven history of creating successful products based on value SoCs, relying on our talented software engineers to optimize limited resources.We genuinely mean it when we say that Roku is a place where everyone contributes. If you aspire to work with top talent, developing products used by millions, and thrive in a tech culture that excels, we invite you to contact us. Join us in creating the next generation of cost-effective streaming players and TVs for our customers. Your Responsibilities Design and develop OS features within a multi-process environment that prioritize speed, efficiency, and platform flexibility.Exhibit excellence in C++ development to deliver high-performance and ultra-reliable software, focusing on optimization, performance, and memory management.Implement features with the necessary abstractions to ensure compatibility across various hardware.

Teamwork makes the stream work. Join Roku as we transform the way the world experiences television!Roku is the leading TV streaming platform in the U.S., Canada, and Mexico, with a vision to power every television globally. We have revolutionized streaming to the TV and our goal is to connect consumers with the content they love while providing robust tools to content publishers and unique engagement opportunities for advertisers.From day one at Roku, you’ll be a vital part of our mission. We are a rapidly growing public company where every team member's contributions are recognized. This is your chance to delight millions of TV streamers worldwide while gaining invaluable experience across various fields. About the TeamThis team focuses on enhancing the UI framework and components that shape the Roku user experience. Our roadmap is designed to accelerate growth and scalability, delivering innovative features to millions of Roku users globally.Our developers and engineers take ownership of their projects, driven by an internal motivation to tackle challenges. Collaboration is key, as they work alongside different engineering teams, UI designers, product teams, and business leaders. Here, engineers thrive by balancing independent initiative with teamwork, driving innovation in the streaming media landscape. About the RoleAs a Software Engineer specializing in UI Infrastructure, you will play a pivotal role in advancing our embedded UI framework. Collaborating closely with system architects, you will develop and enhance features to boost system stability and performance. Additionally, you will create tools to support the wider development community at Roku. A demonstrated history of delivering high-quality software on embedded platforms is a key requirement for this role.

Collaborative Innovation for a Seamless Streaming Experience. Join Roku in Revolutionizing TelevisionRoku, the leading TV streaming platform across the U.S., Canada, and Mexico, is on a mission to power every television worldwide. As pioneers of streaming to the TV, we aim to connect consumers with their favorite content, empower content publishers to grow their audiences, and provide advertisers with unique tools to engage viewers.From day one, your contributions at Roku will be significant and cherished. As a fast-growing public company, we ensure that every team member plays an active role in delighting millions of TV streamers globally while gaining invaluable experience across diverse fields. About Our TeamOur team is dedicated to building and enhancing the UI framework and components that create remarkable Roku user experiences. Our roadmap is designed to accelerate growth and scalability, delivering exciting new features to tens of millions of Roku users worldwide.We empower our developers and engineers to take ownership of their projects, motivated to tackle challenges that need solutions. Collaboration with different engineering teams, product designers, and business leaders is key to our success, fostering an environment where independent thinkers thrive. Role OverviewAs a Senior Software Engineer focusing on UI Infrastructure, you will play a pivotal role in the ongoing development of our embedded UI framework. Collaborating closely with system architects, you will innovate new features and enhance existing functionalities to boost system stability and performance. Additionally, you will contribute to the development of tools that benefit the broader Roku development community. A solid history of delivering high-quality software on embedded platforms is required for this role. This is an excellent opportunity for a seasoned professional eager to shape the future of streaming media.

Teamwork makes the stream work. Join Roku in Revolutionizing TV StreamingRoku is the leading TV streaming platform across the U.S., Canada, and Mexico. We are on a mission to empower every television worldwide. As pioneers in streaming technology, we connect viewers with the content they adore, enable publishers to grow and monetize their audiences, and equip advertisers with unique tools to engage consumers effectively.Your journey at Roku begins with you making significant contributions from day one. As a rapidly growing public company, we ensure that every team member plays an active role. Here, you will have the chance to delight millions of TV streamers globally while acquiring invaluable experience across various fields. About the TeamAt Roku, our Device Monetization and Themed Experiences (DMTE) team, part of the Advertising organization, is where we create the magic behind the scenes. We are the engineers responsible for developing high-performance graphics and UI foundations that drive the FRAME engine, enabling seamless and visually stunning experiences on millions of devices worldwide. Our contributions are vital, impacting user interactions every time they navigate menus, view animated ads, or engage with custom content for the latest TV shows and movies. We embrace tackling complex technical challenges—optimizing UI rendering and refining memory usage—using BrightScript or JavaScript-like languages to deliver robust, high-performance solutions. We thrive in a collaborative, trust-oriented environment where innovative ideas can originate from anywhere, working closely with firmware, UI, and product teams to ensure our platform is fast, reliable, and poised for the next wave of streaming innovation. If you are passionate about building the invisible frameworks that create exceptional user experiences, this is the place for you. About the RoleAs a Senior Software Engineer within the DMTE team, you will be integral to Roku's platform innovation, responsible for designing, implementing, and enhancing cutting-edge UI solutions.

Collaborate to Innovate in Streaming. Join Roku in Shaping the Future of TelevisionRoku, the leading TV streaming platform across the U.S., Canada, and Mexico, is on a mission to connect every television around the globe. As pioneers in the streaming industry, we empower consumers to access their favorite content, assist publishers in expanding their audience, and offer advertisers unique engagement opportunities.From your first day, you’ll play a crucial role at Roku, a dynamic public company where every voice matters. Experience the excitement of delighting millions of global TV streamers while gaining invaluable experience across various domains. About the TeamOur team focuses on developing and enhancing the UI framework and components that drive Roku's user experiences. Our strategic roadmap accelerates growth and scalability, delivering innovative features to tens of millions of Roku users worldwide.At Roku, our developers and engineers take ownership of their projects, driven by an intrinsic motivation to solve problems and deliver results. Collaboration with different engineering teams, UI design, product management, and business leaders is key to our success, creating an environment where independent spirit thrives alongside teamwork. We are innovators redefining the streaming media landscape. About the RoleAs a Senior Software Engineer specializing in UI Infrastructure, you will significantly contribute to the development of our embedded UI framework. Collaborating closely with system architects, you will create new features and enhance existing ones to boost system stability and performance. Additionally, you will be instrumental in developing tools that benefit the broader development community at Roku. Your proven success in delivering high-quality software on embedded platforms will be essential to our ongoing innovation.

Teamwork makes the stream work. Join Roku and be part of a transformative journey in television.As the leading TV streaming platform across the U.S., Canada, and Mexico, Roku is on a mission to revolutionize how the world experiences television. Our pioneering technology connects viewers to their favorite content while empowering content publishers to cultivate and monetize vast audiences. Additionally, we provide advertisers with unparalleled tools for consumer engagement.From your very first day at Roku, you will play a crucial role in shaping the future of streaming. We are a dynamic public company where your contributions will be recognized and celebrated. This is your opportunity to impact the lives of millions of TV streamers globally while gaining invaluable experience across various disciplines. About the TeamAt Roku, we are at the forefront of television innovation. Our success in shaping the future of streaming media is driven by talented embedded software engineers like you, who will join the Roku OS, OS Extensions, and Apps Team. About the RoleIn this position, you will be an integral part of a team dedicated to developing core features that facilitate streaming applications such as Netflix, YouTube, and BBC on the Roku platform. This role will leverage your expertise in NDK development, DRM, browser technologies, audio-video streaming standards, and optimization of graphics and application performance within embedded systems. The features and performance enhancements you deliver will impact millions of users daily. This is an excellent opportunity for a seasoned professional with innovative solutions for complex challenges, capable of translating concepts into highly reliable software.

Join Cambridge Mobile Telematics (CMT), the leading provider of telematics solutions worldwide, dedicated to enhancing road safety for drivers everywhere. Our innovative AI-driven platform, DriveWell Fusion®, aggregates sensor information from millions of IoT devices—including smartphones, connected vehicles, dashcams, and proprietary Tags—along with contextual data to deliver an integrated perspective on vehicle and driver behavior. Our insights empower auto insurers, automakers, commercial mobility firms, and government entities to enhance risk assessment, safety protocols, claims management, and driver improvement initiatives. With headquarters in Cambridge, MA and additional offices in Budapest, Chennai, Seattle, Tokyo, and Zagreb, we protect and monitor millions of drivers globally every day.CMT is seeking a talented and experienced Senior Software Engineer to contribute to the development and scalability of our on-device Machine Learning systems within the Mobile SDK. This pivotal team is responsible for the core C/C++ runtime that enables real-time sensor data processing and machine learning across a multitude of mobile devices. Our platform facilitates swift updates and deployment of driving behavior algorithms while ensuring optimal performance, battery efficiency, and operational accuracy.If you are a collaborative, customer-focused, and innovative individual eager to help us improve road safety by enhancing driver behavior, we invite you to apply!

Join our innovative team at dev2 as a C# Developer. You will play a pivotal role in designing, developing, and maintaining robust software solutions using C#. Your expertise will help us enhance our product line and deliver exceptional value to our clients.

Collaboration Fuels Innovation at Roku. Join Roku, a Leader in Television Streaming TechnologyRoku is the premier TV streaming platform across the U.S., Canada, and Mexico, with a vision to enhance every television worldwide. We were the pioneers in streaming technology, and our goal is to serve as the central hub for the entire TV ecosystem. We connect viewers to their favorite content, empower content creators to reach vast audiences, and offer advertisers unmatched engagement opportunities.From day one at Roku, your contributions will be impactful and recognized. As a rapidly growing public company, we ensure that every team member plays an essential role. You will have the chance to enrich the experience of millions of TV viewers globally while acquiring valuable expertise across various fields. About the TeamThe UI Systems team at Roku is responsible for developing high-performance engines and foundational graphics infrastructure that power millions of devices. We manage the low-level C++ frameworks, rendering pipelines, and system architectures that facilitate seamless navigation and dynamic animations. Our work sits at the intersection of hardware and software, where we optimize graphics rendering, memory management, and layout engines to deliver a consistently fast experience across our device range. We foster a collaborative, high-trust environment, working closely with firmware and silicon teams to push the limits of embedded hardware capabilities.About the RoleAs a Senior Software Engineer, you will play a crucial role in architecting the core systems that enhance Roku's user experience. You will design and develop performance-critical code within our UI engine, focusing on graphics primitives, memory efficiency, and hardware acceleration. This position involves addressing complex systems-level challenges, including optimizing frame rates on resource-constrained hardware and creating robust APIs for higher-level frameworks. This role is perfect for engineers passionate about low-level systems programming, with a keen interest in performance metrics and a desire to innovate the future of television.Your ResponsibilitiesArchitect and optimize core C++ UI frameworks for Roku devices.

Teamwork makes the stream work. Roku is transforming the way the world experiences television.As the leading TV streaming platform in the U.S., Canada, and Mexico, Roku is on a mission to power every television globally. We are pioneers in streaming technology, connecting viewers with the content they love. Our platform empowers content publishers to grow and monetize their audiences while offering advertisers unique ways to engage consumers.From day one at Roku, you will make a significant, appreciated contribution. We are a rapidly growing public company where every individual plays a critical role. Join us to delight millions of TV streamers worldwide while gaining invaluable experience across various areas. About the RoleBecome part of our team as a Software Engineer Intern, where your enthusiasm for technology and innovation will propel our success. This is a paid 12-week internship set to start in Summer 2026.We will customize your project to ensure the best experience during your time with us. One exciting idea on the table is the creation of an AI-driven development workflow for designing and testing new APIs. This initiative would facilitate rapid prototyping of new interface definitions and implementations, including automated testing and documentation, while gathering insights to evaluate design concepts. Your ResponsibilitiesLead a project that contributes to the effectiveness of our development team.Utilize C++ in Linux-based systems, employing debugging and analysis tools to reproduce, isolate, and resolve issues.Collaborate with engineers from firmware, platform services, and quality assurance to ensure reliable delivery. We Would Love to SeeEnrollment in a Computer Science/Engineering degree program or a related field.Demonstrated modern C++ proficiency through coding outside of your academic curriculum.Experience in developing/debugging on Linux-based embedded platforms.Understanding of Linux kernel concepts, multi-threading primitives, Linux tools, libraries, and open-source development.Proficiency in scripting languages like Python or Bash.