Senior React Developer Jobs

MongoDB’s Marketing team in France is looking for a commercially minded and strategic Regional Marketing Manager to develop and execute account-based marketing and integrated field marketing programs for some of our largest and most strategic French accounts. This role will partner closely with Enterprise Account Executives, Solution Architects, Customer Success, Partner Marketing, Demand Generation, Developer Advocacy and other cross-functional teams to build account plans that increase awareness, engage technical champions and executive stakeholders, create and accelerate pipeline, and expand MongoDB’s footprint across France. The successful candidate will combine strategic thinking with hands-on execution. They will be comfortable translating account priorities into multi-channel programs, managing stakeholders and budgets, measuring business impact, and adapting plans based on performance and market feedback. We are looking to speak to candidates who are based in Paris for our hybrid working model. What you will do Own the France account-based marketing plan for an agreed portfolio of strategic accounts, including account selection, stakeholder mapping, priorities, tactics, budget and quarterly planning, performance reviews and analysis of programs Work closely with account teams to understand account-specific challenges, decision-making processes, business priorities and key personas Develop and execute tailored marketing strategies and messaging that address the needs of each account, engage senior leaders and buying committees, and create growth opportunities Translate sales and account-team priorities into integrated programs across executive engagement, customer advocacy, partner marketing, events, digital campaigns and developer/community activities Develop and manage targeted acquisition and engagement campaigns for digital-native organizations and AI companies, adapting messaging, channels and content to reach technical audiences, founders, developers an

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As a Manager, Customer Success Operations at GitLab, you will own the operational processes, reporting, and programs that support our Customer Success Management (CSM) function. Reporting to the Senior Manager of Sales & CX Operations, you will partner closely with CS leadership, Revenue Strategy & Operations, Finance, a

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As the Manager, Solutions Architects for our Enterprise team in the San Francisco Bay area, you'll lead a distributed group of intermediate and senior Solutions Architects serving enterprise customers in the West sales territory. You'll guide your team to act as trusted advisors to GitLab prospects and customers, helping them validate GitLab's Enterpris

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as a Staff Software Engineer where you'll shape the next generation of fraud prevention products. About the job As a Staff Software Engineer you will help develop Stytch’s fraud detection and prevention products as we bring Stytch capabilities to Twilio’s full customer base, delivering secure, developer-first identity and fraud prevention experiences. You’ll primarily work on our Device Fingerprinting product that detects bots, manual abuse, and highly sophisticated reverse engineering to help protect our customers’ from fraud and abuse. You’ll partner closely with product and engineering leadership to evolve our detection techniques to continue to stay ahead of threats. This is a rare chance to operate like a startup within Twilio: you’ll work in a high-ownership environment with startup sped, backed by Twilio’s reach and scale. Leveling & Ownership: Hiring at either the Senior or Staff level —exact leveling and scope of influ

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. As a Principal Security Software Engineer on the Production IAM team, you will set the technical direction for how identity and access work across Roblox's production infrastructure, from the mTLS-based identity that services use to authenticate to one another, to the privileged access controls that govern how engineers reach production. The team is accountable for Roblox's machine and workload identity platform, its centralized authorization engine, its production access management platform, production PKI and certificate lifecycle, and just-in-time privileged access for engineers. As an individual contributor in Production IAM, you will define multi-year strategy, drive alignment across Roblox Platform, mentor senior and staff engineers, and personally build the hardest parts of these systems. As AI agents become first-class actors in production, you will also help pioneer how they get identity, prove who they are, and receive safely-scoped access. You will Lead the architecture for production identity and access. Define and evolve the end-to-end design for machine, workload, human, and AI-agent identity across our hybrid on-prem and cloud fleet, making secure access invisible when

Beacon Biosignals is transforming precision medicine for the brain, from clinical development to clinical care. For Life Sciences partners, we offer the leading at-home EEG platform for clinical development of novel therapeutics for neurological, psychiatric, and sleep disorders. Our Diagnostics business is building the most comprehensive at-home platform for precision diagnostics, combining EEG and cardiopulmonary signals to deliver reimbursable assessments for sleep and central nervous system disorders. Together, we're changing the way patients are diagnosed and treated for any disorder that affects brain physiology. As a Senior Front-end Engineer, you’ll help power Beacon's mission by building first-class web applications that drive forward new EEG analysis with data analytics capabilities manage clinical studies of novel therapeutics enable physicians to diagnose patients through at-home sleep tests This isn’t just another web app — you’ll be crafting tools that help unlock insights into neurological, psychiatric, and sleep disorders, with the potential to improve lives at scale. This role is 100% remote from anywhere in the U.S. Beacon's robust asynchronous work practices ensure a first-class remote work experience, but we also have in-person office hubs located in Boston and New York. What success looks like As part of our small, mission-driven Web Apps Team, you will: Develop our React/Typescript web applications. Design and implement UX workflows for clinical study management, data analytics, and patient diagnostics. Own the user experience, performance, reliability, and observability of the web apps and features you develop, leveraging feedback from real users in a diverse set of use cases and environments. Partner with product designers and cross-functional teams to develop user-centric capabilities that empower a wide set of user personas, both internally and externally. Help shape the roadmap and technical direction of our web applications. In your first

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Repayment UX Engineering team is growing, and we're looking for a Senior Software Engineer specializing in React Native development. We're a full-stack team located entirely in Europe within the same time zone, but culturally rooted in Silicon Valley. We directly improve the financial lives of over 20 million people. We build and own user journeys that enable them to pay back loans worth collectively over $40B each year. Our team exists to make these moments the most reliable and transparent in world-class consumer finance. Our work is agile and fast-paced, shipping new code to production every two-week sprint, and rigorously measuring the impact it has on the behavior of our users. This role rewards curiosity, ownership, and a builder's mindset. You'll know exactly what your objectives are, you'll have what you need to hit them, and you'll choose your own path to get there. You'll learn quickly from experienced teammates and grow your craft on problems that matter at scale. If you want to build something new and operate it at scale – come join us! What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. · You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. · You will support the operations and availability of your team’s artifacts by creating and m

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Repayment UX Engineering team is growing, and we're looking for a Senior Software Engineer specializing in React Native development. We're a full-stack team located entirely in Europe within the same time zone, but culturally rooted in Silicon Valley. We directly improve the financial lives of over 20 million people. We build and own user journeys that enable them to pay back loans worth collectively over $40B each year. Our team exists to make these moments the most reliable and transparent in world-class consumer finance. Our work is agile and fast-paced, shipping new code to production every two-week sprint, and rigorously measuring the impact it has on the behavior of our users. This role rewards curiosity, ownership, and a builder's mindset. You'll know exactly what your objectives are, you'll have what you need to hit them, and you'll choose your own path to get there. You'll learn quickly from experienced teammates and grow your craft on problems that matter at scale. If you want to build something new and operate it at scale – come join us! What You'll Do · You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. · You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs. · You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. · You will support the operations and availability of your team’s artifacts by creating and m

The Role Capco is seeking a Senior Software Engineer with strong expertise in C#, .NET, ASP.NET Core, and API development to join our Technology & Engineering practice in Toronto. In this role, you will design, develop, modernize, and maintain enterprise applications and APIs that support business-critical solutions for our clients. We are looking for an experienced, hands-on engineer who brings strong backend development capabilities, an understanding of modern frontend frameworks, and experience delivering secure, scalable, and reliable software. You will collaborate with cross-functional engineering teams, contribute to technical design decisions, and leverage modern development practices, including AI-assisted engineering tools, to improve software quality and delivery efficiency. Why This Role Is Open We are currently hiring for this role due to an existing or newly created vacancy within our organization. This position is open as part of our ongoing business needs, and we are actively reviewing applications to fill this role with a qualified candidate who can make an immediate impact. What You’ll Do Design, develop, and maintain scalable backend services and enterprise applications using C#, .NET, ASP.NET Core, and SQL Server. Build, enhance, and integrate secure RESTful APIs, including authentication, authorization, data validation, and error handling. Contribute to the modernization of existing applications, including refactoring legacy code, improving performance, and enhancing system reliability. Work across the application stack, collaborating on frontend development using React, Angular, or similar JavaScript/TypeScript frameworks. Apply secure coding principles and API security practices, including OAuth2, JWT, and common application security standards. Participate in technical design discussions, code reviews, automated testing, troubleshooting, and performance optimization. Support CI/CD pipelines, containerized deployments, and development

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Join us at the start of a new era in health care where technology is transforming how and where care is delivered, creating a more connected, effective care experience for all. Our mission at Signify Health is to build trusted relationships to make people healthier. We do this by transforming the home into a health hub through a combination of data, technology & people. We are building a unified technology platform for value-based care that is improving care and reducing spending by treating patients in lower-cost settings and linking providers’ payments to patient outcomes. Signify Health is driving this industry transformation and solving some of the most challenging problems in healthcare – this is where you come in! About the Role As a Senior Software Engineer, you’ll be a key member of a collaborative team responsible for design, delivery and operation of business-critical, distributed systems. We’re looking for technically strong, passionate people with an entrepreneurial spirit to build and sustain innovative solutions. Basic Qualifications 5 years of software development experience. Strong foundation in software engineering: problem solving, data structures, algorithms, patterns, concurrency. Strong understanding and demo

We take play seriously. We’re looking for curious adventurers ready to find their party, fueled by imagination and drive to build what’s never been built before. At Hasbro and Wizards of the Coast, you’ll collaborate with passionate teams to reimagine our iconic brands and create experiences that spark joy, connection, and community through the magic of play. This is your chance to shape legendary play that lasts a lifetime. At Wizards of the Coast, we connect people around the world through play and imagination. From our genre-defining games like Magic: The Gathering® and Dungeons & Dragons® to our growing multiverse, we continue to innovate and build new ways to foster friendship and connection. That’s where you come in! We are looking for a Senior Software Engineer to join our Business Systems Engineering (BSE) organization. We build the platform and applications that power the creation and production of Magic: The Gathering®, Dungeons & Dragons®, and Duel Masters®. These products drive over $2 billion in annual revenue and are beloved by millions of players worldwide. The systems we build are what make that work possible. This is a role with high impact and real stakes. You'll set technical direction, shape engineering culture, and lead others while staying hands-on. You'll work on the cutting edge of AI-driven software development, pairing technical excellence and engineering discipline with AI-accelerated delivery ensuring quality, reliability, and long-term maintainability. We're on a journey to make history, and we want you to help lead it! If you're motivated by ownership, care deeply about the craft, and want to build something that matters — join the party. What You'll Do: Design and develop services and applications on AWS that are core to our product creation platform. Influence and champion and engineering standards across the org, resulting in effective system design at both the application and service level. Leverage and enhanc

We take play seriously. We’re looking for curious adventurers ready to find their party, fueled by imagination and drive to build what’s never been built before. At Hasbro and Wizards of the Coast, you’ll collaborate with passionate teams to reimagine our iconic brands and create experiences that spark joy, connection, and community through the magic of play. This is your chance to shape legendary play that lasts a lifetime. At Wizards of the Coast, we connect people around the world through play and imagination. From our genre-defining games like Magic: The Gathering® and Dungeons & Dragons® to our growing multiverse, we continue to innovate and build new ways to foster friendship and connection. That’s where you come in! We are looking for a Senior Software Engineer to join our Business Systems Engineering (BSE) organization. We build the platform and applications that power the creation and production of Magic: The Gathering®, Dungeons & Dragons®, and Duel Masters®. These products drive over $2 billion in annual revenue and are beloved by millions of players worldwide. The systems we build are what make that work possible. This is a role with high impact and real stakes. You'll set technical direction, shape engineering culture, and lead others while staying hands-on. You'll work on the cutting edge of AI-driven software development, pairing technical excellence and engineering discipline with AI-accelerated delivery ensuring quality, reliability, and long-term maintainability. We're on a journey to make history, and we want you to help lead it! If you're motivated by ownership, care deeply about the craft, and want to build something that matters — join the party. What You'll Do: Design and develop services and applications on AWS that are core to our product creation platform. Influence and champion and engineering standards across the org, resulting in effective system design at both the application and service level. Leverage and enhanc

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary The Senior Engineer will be responsible for delivering high-quality web applications, interactive dashboards, and backend integration services through collaboration with our engineering, data, product and DevOps teams in a fast-paced, agile environment. You will be instrumental in building modern user interfaces, integrating backend systems with complex data objects, and embedding AI capabilities into our application ecosystem. The position is on a software engineering team responsible for creating intuitive data visualizations, building resilient APIs, leveraging DevOps automation, and scaling modern application features across the enterprise. Required Qualifications 5&#43; years of professional full stack software development experience. 3&#43; years of experience with modern frontend frameworks (e.g., React, Angular, Vue) and data visualization libraries (e.g., D3.js, Chart.js, Recharts) to build interactive dashboards. 3&#43; years of experience with backend development (e.g., Node.js, Python, Java, C#) and API design (REST, GraphQL). <li styl

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary: CVS Health Enterprise Digital seeks to change the way individuals manage their healthcare by focusing on the features that matter to our customers, building software in a modern, lean way, and deploying continuously into the cloud. As part of an engineering team building the Aetna Health website, we help our members effectively find the care they need. What you'll do: The web teams are responsible for building the best experience possible for the millions of members using our Aetna Health website. You will work alongside other engineers and with the product and design teams to consistently deliver new features. You will also work to refactor existing code in order to bring greater stability and scalability for our application as our membership continues to increase. This Senior Web Software Engineer II can expect to design, develop and implements digital solutions and systems by applying advanced technical expertise to architect and code software applications, conduct system testing and debugging, collaborate with cross-functional teams and contribute to the overall technical direction and innovation of digital engineering projects. In any given day you will: Contribute code and tests according to criteria established by our product an

Location Details: At GoDaddy the future of work looks different for each team. Some teams work in the office full-time; others have a hybrid arrangement (they work remotely some days and in the office some days) and some work entirely remotely.​ This is a remote position, so you’ll be working remotely from your home. You may occasionally visit a GoDaddy office to meet with your team for events or meetings. Join our team When GoDaddy's customers are considering a new venture, it often starts with a name. The Search Results team (SERP) plays a key role in that mission by building the discovery experience that helps customers find the right domain name and products for their idea. We're a small team that moves quickly, holds a high bar for craft, and ships work that impacts millions of customers. We’re looking for a Senior Software Engineer to help shape our search and discovery experiences. This is a hands-on individual contributor role. You’ll lead by example through the quality of your code, the decisions you make, and the way you help others succeed. You’ll have opportunities to lead projects, influence technical direction, mentor peers, and speak up when you see a better path. What you'll get to do... Build and ship frontend experiences that help customers find the right domain, including match quality, smart alternatives, favorites, and AI-enabled experiences Lead projects from problem definition through technical design, implementation, launch, measurement, and production ownership Improve how the team ships by building internal tools, automation, and reusable engineering patterns Your experience should include... 7+ years of professional software development experience Strong proficiency building modern web applications with React, JavaScript, and Node.js Practical experience with deployment, CI/CD, observability, and production ownership Experience using AI-assisted development tools such as Claude Code, Cursor, Copilot, or similar tools wi