Senior Software Engineer, Full Stack

We embrace a hybrid work culture, allowing most US-based roles to be performed remotely, with specific exceptions noted in the Minimum Qualifications section.Our Mission:To empower individuals by connecting them to their next remarkable opportunity.About Us:ZipRecruiter stands at the forefront of the online employment landscape. Utilizing cutting-edge AI-driven smart matching technology, we seamlessly connect millions of businesses, regardless of size, with job seekers through our innovative mobile, web, and email platforms, in addition to strategic partnerships with leading job boards. Our app is recognized as the top-rated job search application on both iOS and Android platforms.Team Overview:At ZipRecruiter, we understand the transformative power of jobs—just ask any of the millions of job seekers we assist. Our solutions bridge the gap between eager employers and talented candidates. Our engineering team is dedicated to building scalable applications that serve a vast user base, as we strive to create a revolutionary marketplace for jobs. To support this mission, we are expanding our leadership team by adding experienced Software Engineering Managers.We are seeking engineering managers who can take ownership of multiple product lines, drive business value, nurture a healthy tech stack, and mentor engineers to foster a culture of excellence, accountability, and continuous growth.Key Responsibilities:Lead your team in mission execution, maintain high morale, and ensure code quality.Collaborate effectively with product managers to adhere to and execute the product roadmap.Act as a catalyst for your team by removing barriers, identifying process enhancements, and delegating tasks efficiently.

Join Pivotal Health as a Backend Software Engineer IIPivotal Health stands at the forefront of transforming reimbursement processes for healthcare providers. Our innovative technology platform ensures that providers receive fair compensation amidst a challenging reimbursement landscape.Despite delivering exceptional care, many providers struggle with underpayment from health insurance entities. While mechanisms like Independent Dispute Resolution (IDR) aim to foster fairness, they often prove cumbersome and challenging without the right tools.At Pivotal Health, we merge cutting-edge software, comprehensive data, and dedicated service into an AI-driven platform that streamlines complex reimbursement workflows. Our mission is to empower healthcare providers to dispute underpaid claims efficiently, minimize administrative tasks, and reclaim the reimbursements they deserve—all without overburdening their teams.Our full-service IDR solution is merely the beginning; we are committed to developing tools that facilitate clarity, control, and confidence throughout the reimbursement journey.About the RoleWe are in search of a Backend Software Engineer who thrives on problem-solving, demonstrates initiative, and excels in a dynamic startup setting. You will collaborate closely with product teams, operations, and frontend engineers to deliver features from conception to deployment, enhance system reliability, and influence the architecture that drives our platform.This position is ideal for those who are naturally inquisitive, unafraid to ask questions, and willing to suggest innovative solutions when challenges arise. You will embrace a collaborative, low-ego mindset, appreciating the value of feedback and prioritizing impactful outcomes over pinpointing the perfect implementation. If you enjoy hands-on work, rapid learning, and contributing to product evolution, we would love to have you on board!Key ResponsibilitiesOwnership: Take initiative on feature development and system improvements, working alongside teammates to deliver dependable solutions.Momentum: Operate efficiently, iterate intelligently, and produce significant results without compromising on quality.Impact: Address real challenges that resonate with our team and users; concentrate on practical, scalable solutions that add value.Innovation: Leverage creativity and initiative to tackle difficult problems; propose forward-thinking strategies and enhancements.Collaboration: Engage openly and humbly with colleagues, valuing diverse expertise while sharing your insights; communicate effectively across teams.

Pivotal Health builds technology that helps healthcare providers handle reimbursement challenges. Many providers struggle with underpayment from insurers, even when delivering quality care. The company’s platform brings together software, data, and services to simplify reimbursement workflows and support providers as they dispute underpaid claims. The mission is to cut administrative overhead and help teams secure the payments they deserve. The IDR (Independent Dispute Resolution) solution is just the beginning. Pivotal Health continues to develop tools that give healthcare providers more clarity and control throughout the reimbursement process. Role overview This Backend Software Engineer II - Systems Integration role focuses on building and improving the systems that power Pivotal Health’s platform. The position involves close collaboration with product, operations, and frontend teams to deliver features from concept through deployment. Expect to play an active role in enhancing system reliability and shaping the platform’s architecture. Pivotal Health values engineers who take initiative, enjoy problem-solving, and are curious about new approaches. The team appreciates open collaboration and a focus on delivering value, rather than perfecting every detail. Those who learn quickly and want to help influence product direction will find this work engaging. Key responsibilities Drive features and enhancements: Own new capabilities and improvements, working with teammates to deliver reliable solutions. Deliver with momentum: Move quickly, iterate thoughtfully, and make sure results meet quality and reliability standards. Solve meaningful problems: Tackle challenges that affect both the team and end users, focusing on practical, scalable solutions. Propose creative solutions: Bring initiative and new ideas to address complex technical problems and advance the product. Collaborate across teams: Work constructively with colleagues, share expertise, and communicate clearly with both technical and non-technical stakeholders. Location Santa Monica, CA

Join our dynamic team at Red Bull GmbH as an Engineering Manager specializing in Streaming Applications. In this pivotal role, you will lead and mentor a talented group of engineers to create cutting-edge streaming solutions that enhance user experiences. Your expertise in streaming technologies will be crucial in driving innovation and ensuring high-quality product delivery.We are looking for a passionate leader who can inspire their team while collaborating with cross-functional teams to achieve strategic goals. If you are ready to make an impact in the fast-paced world of streaming applications, we want to hear from you!

Pivotal Health seeks a Senior Software Engineer for its Systems Integration team in Santa Monica, CA. This role centers on backend development, supporting the core infrastructure that manages financial transactions across the platform. The team is small and newly established, which means engineers have a real say in technical direction and the opportunity to work on new projects from the ground up. Independent thinking, technical expertise, and a collaborative mindset are valued here. What you will do Backend integrations: Design, build, and maintain connections with third-party systems, including ERP accounting tools and Salesforce. These integrations are essential for financial operations and client billing. Engineers take full ownership of their features, ensuring production-ready code. Financial logic: Develop precise calculations and business rules to manage the flow of funds. Responsibilities include handling client payments, IDR system transactions, provider reimbursements, and refunds. Accuracy and reliability are key. Architectural input: Participate in architecture discussions, propose new solutions, and help refine the system. Team members are encouraged to share ideas and challenge current methods. Initiative in a small team: With only two or three engineers on the project, each person is expected to identify issues, take action, and help move the project forward without waiting for direction.

As a pivotal member of our team, you will be responsible for developing cutting-edge, mission-critical applications and tools that empower Catasys colleagues in their daily efforts to transform the lives of individuals grappling with untreated behavioral health issues.Your success in this role will hinge on your ability to collaborate effectively with business leaders, product managers, architects, and fellow engineers to grasp business requirements and devise optimal solutions. You will engage in robust teamwork throughout agile development cycles, ensuring the realization of your envisioned solutions. The components you create will significantly impact both our members and healthcare providers.You will adopt a systematic approach to problem-solving, adeptly shifting between the big picture and the finer details. Your capacity to guide others through this process, while codifying best practices and tools, will help establish a foundational engineering approach in our rapidly expanding environment.Key ResponsibilitiesDesign and implement cloud-based user interface components for large-scale, highly scalable deployments.Integrate third-party tools and PaaS/SaaS services.Research and prototype innovative solutions using open-source technologies.Collaborate with subject matter experts to ensure successful transfer of complex domain knowledge.Apply software development lifecycle (SDLC) principles and methodologies such as Lean, Agile, XP, Continuous Integration (CI), and best practices in Software and Product Security.Write high-quality code that meets established standards and delivers the desired functionality using the selected technology.Assess application performance by understanding performance parameters.Work on core data structures and algorithms, implementing them with the chosen technology.Proactively share information with the team, tailoring communication to the right audience with appropriate detail and timeliness.

Join Pivotal HealthPivotal Health is a pioneering technology platform dedicated to ensuring fair reimbursement for healthcare providers navigating an increasingly complex financial landscape.Healthcare providers often face substantial underpayment from insurance companies, despite their commitment to delivering top-tier care. While mechanisms like Independent Dispute Resolution (IDR) aim to foster fairness, they frequently become cumbersome, intricate, and challenging to manage without the right resources.At Pivotal Health, we merge software, data, and exceptional service into a cohesive, AI-powered platform that streamlines complex reimbursement processes. Our mission is to empower providers to effectively dispute underpaid claims, minimize administrative burdens, and reclaim rightful reimbursements without overloading their already stretched teams.Our comprehensive IDR solution is merely the beginning. We are committed to developing innovative solutions that grant providers clarity, control, and confidence throughout their reimbursement journey.About the OpportunityWe are seeking a Lead Software Engineer to develop the backend systems and APIs that drive our core platform. In this critical role, you will collaborate closely with our product, data, and frontend teams to design scalable, reliable services that facilitate swift and accurate out-of-network reimbursement for healthcare providers. Your contributions will be instrumental in shaping the backend architecture of our dynamic healthcare startup.If you thrive on designing systems that tackle complex challenges and appreciate witnessing the immediate impact of your work, this position is tailor-made for you.Your ResponsibilitiesCreate and sustain backend systems: Design and implement scalable backend services that manage high-throughput data workflows and enable real-time decision-making.Develop resilient APIs: Construct secure, high-performance APIs that power our platform and integrate seamlessly with both internal and external systems.Collaborate across teams: Partner with Product to deliver features from inception to launch. Translate ambiguous requirements into technical solutions that yield tangible business results.Shape our architecture: Influence decisions regarding system design, performance optimization, and scalability. Establish patterns and best practices for our expanding engineering team.Oversee the entire development lifecycle: From design and implementation to testing, deployment, and post-release support — you will guide your projects from start to finish.

Join our dynamic team at ZipRecruiter in a hybrid work environment, where you can work flexibly from home or in our Santa Monica office. Our mission is to connect individuals with their next great opportunity, and as a Senior Machine Learning Software Engineer, you will play a vital role in making that happen.About Us: ZipRecruiter is a premier online employment marketplace powered by advanced AI-driven smart matching technology. We facilitate connections between millions of diverse businesses and job seekers through our innovative mobile, web, and email services, alongside collaborations with leading job boards. Our job search app is rated #1 on both iOS and Android platforms.Your Impact: At ZipRecruiter, you will leverage a vast universe of data, including over a billion archived job postings and tens of millions of job seekers, to innovate and develop impactful, data-driven features that connect people to their dream jobs. You will face exhilarating challenges, such as designing systems to predict salaries for new job postings, while diving deep into data gathering, cleaning, analysis, and insight extraction.Key Responsibilities:Design, develop, and maintain robust machine learning models and algorithms to tackle complex business challenges.Identify patterns, trends, and anomalies in datasets, visualizing insights through appropriate analytical tools.Evaluate the performance of machine learning models using established metrics, validation techniques, and comprehensive testing datasets.Collaborate with cross-functional teams to integrate machine learning solutions into our core products.Stay abreast of industry trends and advancements in machine learning technologies.

Kixie develops a comprehensive sales engagement platform designed to simplify sales workflows. The platform connects directly with CRMs, providing automated outreach tools, live analytics, and in-depth reporting. Sales teams use Kixie to reach prospects, communicate more effectively, and close deals with greater efficiency. The engineering team is based in Santa Monica and works closely together to maintain and improve the product. Collaboration shapes daily work, with each team member contributing to the company’s goals. Creative problem solving and a willingness to take on new challenges are highly valued within the group.

At TWG Global Holdings, LLC (“TWG Global”), we are at the forefront of innovation and business transformation across various sectors, including financial services, insurance, technology, media, and sports. Our commitment to leveraging data and artificial intelligence as essential assets allows us to deliver an AI-first, cloud-native approach that provides real-time intelligence and interactive business applications. This empowers informed decision-making for both our customers and employees.We emphasize responsible data and AI practices, ensuring compliance with ethical standards and regulations. Our decentralized organizational structure allows each business unit to operate autonomously, backed by a central AI Solutions Group. Strategic partnerships with leading data and AI vendors drive transformative initiatives in marketing, operations, and product development.In this role, you will collaborate closely with management to propel our data and analytics transformation, enhance productivity, and foster agile, data-driven decisions. By utilizing relationships with top technology startups and academic institutions, you will help cultivate competitive advantages and stimulate enterprise innovation.Your contributions will be vital in supporting TWG Global’s objectives of sustained growth and exceptional returns, delivering unique value and impact across our diverse business landscape.The Role:We are searching for an Executive Director of Software and AI Engineering who will act as a hands-on technical leader and enterprise architect, driving TWG Global’s AI and software initiatives. This pivotal role entails overseeing architecture, engineering execution, and technical decision-making across multiple concurrent projects, functioning as both a senior individual contributor and a leader. You will ensure systems are designed for scalability, delivered on schedule, and aligned with business outcomes.Key Responsibilities:Lead the architectural direction and hands-on engineering efforts across various TWG Global AI and software initiatives, making critical decisions regarding system design, technology selection, and integration within complex environments.Act as the senior technical authority for projects, providing guidance and oversight while directly engaging in core engineering tasks in high-impact areas, including AI-driven workflows, digital employee systems, and complex data platforms.Manage and mentor a small team of engineers (typically 4-5), ensuring high standards of execution, accountability, and delivery in fast-paced, deadline-driven environments across diverse industries.

Join Pivotal HealthPivotal Health stands at the forefront of technology, revolutionizing the way healthcare providers navigate the complexities of reimbursement. Our innovative platform ensures that providers are compensated fairly for the exceptional care they deliver.In a landscape where underpayment from insurance companies persists, our solution simplifies the often cumbersome and confusing reimbursement processes. With our AI-powered tools, we equip providers to efficiently challenge underpaid claims, alleviating administrative burdens and maximizing rightful reimbursements.Our comprehensive IDR solution is just the beginning. We strive to empower healthcare providers with clarity and control throughout their reimbursement journey.About the PositionWe are seeking an experienced Senior Software Engineer to enhance our backend systems and API architecture that underpin our core platform. In this role, you will collaborate closely with product, data, and frontend teams to develop scalable and reliable services, enabling swift and accurate out-of-network reimbursements for our clients. This position offers you the opportunity to make a significant impact in a dynamic healthcare startup.If you are passionate about designing systems that tackle intricate challenges and enjoy witnessing the direct effects of your contributions, this role is tailored for you.Your ResponsibilitiesBackend Systems Development: Design and build scalable backend services that accommodate high-volume data processing and real-time decision-making.API Development: Create secure, high-performance APIs that drive our platform and integrate with various internal and external systems.Cross-Team Collaboration: Partner with Product and other teams to deliver features from conception to deployment, turning vague requirements into impactful technical solutions.Architectural Influence: Contribute to the design, performance, and scalability decisions, establishing best practices for our engineering team.Full Development Lifecycle Ownership: Manage the entire process from design and implementation to testing, deployment, and ongoing support.

Pivotal Health develops technology that helps healthcare providers secure fair payments in a complex reimbursement system. Many providers struggle with underpayment from insurers, and traditional solutions like Independent Dispute Resolution (IDR) are often slow and difficult to manage without the right tools. The company’s AI-driven platform streamlines reimbursement workflows, allowing providers to contest underpaid claims, cut administrative work, and gain more control over payments. The platform is expanding to offer greater transparency and support throughout the reimbursement process. Role overview The Staff Software Engineer - Systems Integration will join a small, highly technical team focused on financial transactions and how they move through the Pivotal Health platform to providers. This role centers on greenfield projects: building new integrations from the ground up, making foundational architectural decisions, and establishing patterns that will shape the team’s work for years ahead. The position is well-suited for engineers who enjoy solving complex problems, value ownership, and want to grow professionally alongside a skilled group. What you will do Architect and develop new integrations: Design and build ERP and Salesforce integrations from scratch. Make key architectural decisions, weigh trade-offs, and document the reasoning behind choices. Create systems that are scalable and maintainable as the platform evolves. Lead technical direction for financial transactions: Develop business logic for fund distribution, including client payments, IDR process management, and handling post-billing refunds. This work is central to the platform and directly affects provider payments. Drive technical standards and documentation: Set technical standards for the team, create supporting documentation, and ensure decisions are well-documented. Establish best practices for development within the group. Location Santa Monica, CA

Join Tapcart, the premier mobile app platform empowering the fastest-growing Shopify brands globally. Our mission is to help marketers and eCommerce teams elevate their brands and foster unique customer experiences via a direct mobile channel.We proudly power mobile shopping for over 50 million consumers and manage an impressive $8 billion in annual revenue. Esteemed brands like Béis, Grove Collaborative, and Ruggable depend on Tapcart to transform mobile traffic into lasting, high-growth relationships — launching mobile apps in mere hours instead of months.THE ROLEAs a Senior Software Engineer within the CMS Team, you will craft the authoring experience that empowers our merchants to manage their accounts, build and deploy their apps, create marketing campaigns, and analyze their app’s performance across essential metrics. This includes developing a robust graphical editor (React/Next.js) and command-line tools that allow developers to customize and enhance apps from the terminal. You'll be at the forefront of app development tools, integrating advanced AI solutions throughout the journey from sign-up to design, launch, optimization, and ongoing maintenance.You will take full ownership of projects from prototype to production, collaborating closely with product, design, and solutions engineering while maintaining close ties with merchants to deliver value rapidly and iterate efficiently.HOW YOU WILL MAKE AN IMPACTDesign an intuitive, drag-and-drop editor that visualizes app composition in real-time.Incorporate AI across our features to unlock exceptional productivity.Develop command-line tools for scaffolding, custom code integration, version control, and CI/CD pipelines.Prototype new editor features in weekly sprints, validate with live merchants, refine, and deploy to thousands of apps.Write and maintain clean, testable code alongside comprehensive documentation for both the editor and CLI.WHAT SKILLS YOU’LL NEED5-7 years of software engineering experience.3+ years of full-stack development with React and Next.js (TypeScript).Strong grasp of state management (Redux, Zustand, Recoil) and familiarity with drag-and-drop libraries.Exceptional problem-solving skills and a passion for delivering high-quality software.Experience with CI/CD practices and agile methodologies.

About the Role Speechify is looking for an iOS Core Product Software Engineer based in Santa Monica, CA. This role focuses on building and improving iOS applications that help users interact with text in new ways. What You Will Do Develop and enhance core features for Speechify’s iOS apps Work closely with product and engineering teams to deliver reliable software Help create user experiences that make a difference for people engaging with text Location This position is based in Santa Monica, CA.

Pivotal Health creates technology to help healthcare providers secure fair payment for their work. Many providers struggle with underpayment, even when delivering high-quality care. The company’s platform uses artificial intelligence to simplify the Independent Dispute Resolution (IDR) process, making it easier for clients to dispute underpaid claims and easing administrative demands. Role overview The Senior Software Engineer - IDR Core will be based in Santa Monica, CA. This role focuses on designing and maintaining the backend systems and APIs that power Pivotal Health’s platform. The engineer will work closely with product managers, data specialists, and frontend engineers to deliver services that help healthcare providers receive timely and accurate out-of-network reimbursement. What you will do Design, build, and maintain backend services and APIs for the IDR platform Work with cross-functional teams to deliver scalable and reliable solutions Support ongoing improvements to boost efficiency and reduce administrative work for clients Requirements Experience developing backend systems and APIs Ability to collaborate with product, data, and frontend teams Interest in tackling complex technical challenges with practical impact Location This position is based in Santa Monica, CA.

Join Tapcart, the premier mobile app platform designed for the world's fastest-growing Shopify brands. We empower marketers and eCommerce teams to enhance their brands and deliver unique customer experiences through a direct mobile channel.Our platform drives mobile shopping for over 50 million consumers and facilitates more than $8 billion in annual revenue. Renowned brands like Béis, Grove Collaborative, and Ruggable rely on Tapcart to convert mobile traffic into high-retention, thriving relationships, with mobile apps launched in a matter of hours, not months.THE ROLEAs a Senior Software Engineer on the Content Team, you will take ownership of our component library, UI blocks, and the in-app features utilized by millions of shoppers daily. You will be responsible for delivering end-to-end solutions, from problem identification to production-ready features, design patterns, and architectures that ensure our applications are fast, scalable, and extensible. Collaboration with other teams will be essential to introduce new building blocks and drive the next generation of AI-enhanced productivity in mobile app development.You will truly own the process, from prototyping to production, working closely with product, design, and solutions engineering teams, while maintaining close contact with merchants to deliver early value and iterate rapidly.HOW YOU WILL MAKE AN IMPACTDesign, develop, and maintain a reusable, type-safe React/Next.js component system.Prototype innovative UI and features during weekly sprints, validate with live merchants, and iterate to roll out to thousands of apps.Optimize bundle size, server-side rendering, client-side performance, and ensure WCAG compliance.Develop tools (CLI, CI pipelines, linting) that enable external developers to extend our product without limitations.WHAT SKILLS YOU’LL NEED5-7 years of experience in software engineering.3+ years of full-stack development experience with React Native and React + Next.js (TypeScript).Proven experience in building and maintaining design systems/component libraries.Familiarity with cloud deployments and hosting environments.Capability to deliver production-ready code in a dynamic, cross-functional setting.BONUS IF YOU HAVE:

Company OverviewRed 6 is a pioneering startup in the Augmented Reality (AR) sector, revolutionizing synthetic air combat training for pilots. Our flagship technology, integral to the ATARS product, allows for realistic and scalable training in dynamic outdoor environments, simulating the cognitive challenges associated with aviation.The RoleWe are on the lookout for a seasoned Senior Backend Software Engineer to join our vibrant team in Santa Monica, CA. In this pivotal role, you will be responsible for developing the services, APIs, and essential system components that drive the ATARS augmented reality system, enhancing fighter pilots' live flight training with synthetic, threat-relevant scenarios.Your focus will be on constructing the backend systems that enable desktop applications for planning, configuring AR training scenarios, and conducting debriefs post-ATARS flights. Your contributions will include developing production services that manage scenario planning, real-time session state, telemetry ingestion, and the data platforms essential for post-flight review and analysis.In addition to your core backend engineering duties—such as authentication, data modeling, performance optimization, and system monitoring—you will also integrate LLM-enabled features where suitable. These capabilities could encompass tool and action execution, workflow orchestration, retrieval systems, and tracing for AI-assisted workflows. Collaboration with cross-functional engineering teams will be key to delivering dependable, secure, and high-performance backend systems that support critical pilot training environments.

Company OverviewRed 6 is a pioneering startup in the Augmented Reality (AR) sector, transforming synthetic air combat training. Our flagship technology underpins the ATARS product, allowing pilots to engage in realistic, scalable training simulations that replicate the cognitive challenges of flying in dynamic outdoor settings.The RoleWe are on the lookout for a seasoned Senior Frontend Software Engineer to bolster our vibrant team in Santa Monica, CA. This pivotal role involves creating applications for operators and instructors that drive our ATARS augmented reality system, seamlessly integrating synthetic, threat-relevant training into real flights for fighter pilots.Your primary focus will be on developing desktop applications that facilitate the planning and configuration of AR training scenarios, as well as debriefing ATARS flights. You will craft real-time user interfaces that enhance training operations by visualizing live system states, managing scenario controls, and executing telemetry visualizations, including post-flight review and replay workflows.In addition to core frontend engineering tasks, such as optimizing performance, enhancing accessibility, and ensuring maintainable UI architecture, you will also help integrate LLM-driven functionalities, focusing on creating trustworthy copilot user experiences, guided workflows, approval mechanisms, and transparent output processes. This position requires close collaboration with cross-functional engineering teams to deliver robust, mission-critical software that supports advanced pilot training systems.ResponsibilitiesDevelop and enhance operator- and instructor-facing frontend applications to support ATARS training operations.Design and implement desktop user interfaces for planning, configuring, and debriefing AR training scenarios.Create real-time UI systems that visualize live state, telemetry, and scenario controls during training sessions.Develop workflows for post-flight analysis and replay to facilitate training review and performance evaluation.Implement LLM-driven product features utilizing effective UX patterns, including structured outputs and transparent execution processes.Design copilot-style workflows that provide action approvals, guided steps, and clear user feedback.Ensure frontend applications maintain high standards of performance, accessibility, stability, and maintainability.Collaborate with backend and product teams to integrate functionalities and ensure seamless operation.

Join our innovative team at ZipRecruiter as a Senior Software Engineer specializing in Big Data. You will play a pivotal role in developing high-performance applications and data solutions that serve millions of job seekers and thousands of employers. Our hybrid work environment offers flexibility while you contribute to building a scalable marketplace that connects individuals with their next career opportunity. Your expertise in creating efficient, evolvable code will be vital as we leverage data-driven insights to enhance our platform. Collaborate with a talented group of engineers to design and implement data processing pipelines, machine learning infrastructure, and cloud-based technologies that power our intelligent systems.