Software Engineer II - Developer Experience

Join Klaviyo as a Software Engineer II specializing in Flows and Insight Management, where you'll contribute to building innovative solutions that empower businesses to connect with their customers. You will collaborate with cross-functional teams to design, develop, and maintain scalable software applications that enhance user experience and drive business insights.

Join Klaviyo as a Software Engineer II on our Flows Platform team! As a key contributor, you will help design and implement scalable solutions that enhance the user experience and streamline workflows. This is an exciting opportunity to be part of a dynamic team that values innovation and collaboration.

At Klaviyo, we embrace the diverse backgrounds, experiences, and perspectives that each Klaviyo (as we affectionately refer to ourselves) contributes to our dynamic workplace. We believe in providing everyone with a fair chance at success and value the unique experiences that extend beyond conventional job qualifications. If you find yourself resonating with this role but don’t meet every requirement, we encourage you to apply. Curious about life at Klaviyo? Discover how we empower creators to take charge of their destiny by visiting klaviyo.com/careers.Location: Boston Hybrid (3 days/week in office)Why You Should Join the Flows Insights & Management TeamThe Flows Insights & Management team plays a pivotal role in shaping how Klaviyo customers create, manage, and optimize their Klaviyo-driven automations. This team is also responsible for delivering insightful reporting experiences that enable our customers to evaluate the performance and impact of their Flows. By joining this team, you will have a direct influence on over 170,000 brands that rely on Klaviyo daily to engage with their customers.As the Engineering Manager for the Flows Insights & Management team, you will lead a talented group of fullstack engineers while collaborating with cross-functional engineering teams to enhance and evolve Klaviyo’s Flows product in alignment with our customers' needs.In this role, you will be tasked with steering the execution of significant new Flows features, such as expanding sending channels, implementing intelligent personalization, and driving technical advancements and scalability. This position combines technical leadership, architectural guidance, and effective people management.As the manager of one of our flagship products, strong communication and collaboration skills are essential. You will work closely with product managers, designers, support teams, and various engineering teams to extend and drive the evolution of the Flows product.

Join usm2 as a Network Engineer II, where you will play a crucial role in designing, implementing, and maintaining our network infrastructure. You will collaborate with cross-functional teams to ensure network reliability and performance, while troubleshooting and resolving issues as they arise.

Join Alarm.com as a Software Engineer II where you will be part of a dynamic team dedicated to enhancing our innovative security and home automation solutions. In this role, you will contribute to the design, development, and implementation of cutting-edge software applications that empower consumers and businesses alike. Your expertise in software development will be essential in delivering high-quality products that meet our customer needs.

Urban Compass is looking for a Senior Software Engineer II in Boston to help shape and build the next generation of its platform. This position centers on designing and implementing new software features that drive both technical progress and a strong user experience. Role overview As a Senior Software Engineer II, the work involves collaborating with colleagues from different teams to deliver solutions that improve the platform. The focus is on both technical quality and usability, keeping the product aligned with current technology trends. Key responsibilities Design and implement software features and improvements Work closely with cross-functional teams to deliver high-quality solutions Contribute to maintaining a modern, user-focused platform Location This role is based in Boston.

Join OpenGov as a Software Engineer II, where you will be at the forefront of creating innovative solutions that enhance the efficiency of government operations. You will work collaboratively with a talented team, contributing to the design, development, and maintenance of our cutting-edge software applications.As a part of our dynamic environment, you will have the opportunity to tackle complex challenges and implement scalable solutions that positively impact communities. Your expertise will help us in our mission to empower public sector organizations with modern technology.

Join CarGurus, a leading online automotive marketplace, as a Software Development Engineer II, Consumer. In this pivotal role, you will collaborate with cross-functional teams to design, develop, and maintain innovative software solutions that enhance user experience for consumers in the automotive space. You will be responsible for writing high-quality code, implementing best practices, and contributing to architectural decisions. Your efforts will directly impact our mission to make car buying and selling simpler and more efficient.

Join our dynamic team at Klaviyo as a Software Engineer II specializing in Groups. You will collaborate with talented engineers and product teams to develop scalable solutions that enhance user experiences and drive growth. Your expertise in software development will be crucial in designing, implementing, and maintaining innovative systems that empower our clients.

Urban Compass is looking for a Senior Software Engineer II in Boston. This position centers on building software that improves both user experience and operational processes in the real estate sector. Role overview As a Senior Software Engineer II, the work involves designing and developing new features and tools for Urban Compass’s platform. The team values practical solutions that make real estate transactions smoother and more efficient for users. What you will do Create and maintain software that supports the company’s mission in real estate technology. Work alongside other engineers to deliver features that improve usability and efficiency. Apply technical expertise to solve complex problems and contribute to ongoing projects. Requirements Experience in software engineering at a senior level. Ability to design and implement solutions that enhance user experience and operational workflows.

At Klaviyo, we celebrate the diverse backgrounds, experiences, and viewpoints that our team members—whom we affectionately call Klaviyos—bring to our workplace daily. We believe everyone deserves an equitable chance at success and value the unique experiences each individual offers beyond conventional job qualifications. If you feel you are a close match for this role, we encourage you to apply. To learn more about life at Klaviyo, visit klaviyo.com/careers to discover how we empower creators to take charge of their own destinies.Why You Should Join the Onboarding TeamThe Product Expansion team at Klaviyo is dedicated to enhancing the initial experience of our platform for new users. We are committed to optimizing the setup process for customers, ensuring they quickly realize the value of our tools. As engineers, we leverage data to identify improvement opportunities, conduct A/B tests to validate our hypotheses, and collaborate across departments to continually enhance user experience while minimizing obstacles for newcomers. We seek versatile software engineers who are enthusiastic about refining user experiences and have an interest or experience in expanding a user base through effective onboarding strategies.How You Will Make a DifferenceImplement user-experience enhancements throughout the Klaviyo product, with a focus on the new customer journey.Design and execute A/B tests to validate concepts, analyzing results to guide product improvements.Collaborate with marketing, data science, sales, and engineering teams to identify enhancement opportunities and engage directly with customers to understand their needs better.Contribute to refining our experimentation and development methodologies while mentoring fellow engineers.Clearly define objectives, constraints, and context for AI implementations, ensuring accuracy with a focus on security, performance, and maintainability.

Role Overview Klaviyo is hiring a Software Engineer II focused on Analytics Data Engineering in Boston, MA. This position centers on building and maintaining data systems that support analytics across the company. What You Will Do Work with teams from different disciplines to design and implement data pipelines. Create scalable solutions that help drive data-informed decisions throughout Klaviyo. Use modern technologies to support analytics initiatives and improve data infrastructure.

At Klaviyo, we celebrate the diverse backgrounds, experiences, and perspectives that our team members, whom we affectionately call Klaviyos, contribute to our vibrant workplace. We believe in providing everyone with an equal opportunity for success and value the unique experiences that go beyond conventional job expectations. If you feel you are a close match for this role, we encourage you to apply. To discover more about life at Klaviyo, visit klaviyo.com/careers and learn how we empower creators to take charge of their own futures.About the TeamThe Klaviyo Billing & Monetization team is far from the traditional billing department you might envision. We manage the payments and enforcement infrastructure that enables hundreds of thousands of businesses to send billions of emails and texts, especially during peak periods like Black Friday Cyber Monday. Our team is tasked with tracking product usage for billing purposes, managing customer subscriptions and payments, and strategizing pricing for both new and existing products. As Klaviyo continues to grow, our team will be pivotal in capturing revenue across domestic and international markets, developing features that enhance user understanding of their spending, ensuring compliance with regulations, facilitating internationalization, and implementing all pricing-related changes at Klaviyo.About the RoleWe are looking for a Software Engineer II to join our Billing & Monetization team and help propel Klaviyo's mission to provide entrepreneurs with top-notch tools at unbeatable prices. In this role, you will influence key decisions that impact Klaviyo’s expansion into international markets, manage relationships with large clients that have unique payment needs, and shape how new products are priced and packaged.Your ImpactLead the development of customer-facing products that enhance transparency in billing.Innovate methods to accurately and reliably track billions of product usage events.Collaborate with Klaviyo customers and stakeholders to create a platform that maximizes value for users and Klaviyo alike.Contribute to building robust features that clarify billing processes and pricing strategies.

Join Klaviyo as a Software Engineer II specializing in Identity & Access Management within our Core Infrastructure team. In this role, you will contribute to the development of cutting-edge solutions that enhance our security and user management capabilities, ensuring a seamless experience for our customers. Collaborate with cross-functional teams to design, implement, and optimize identity management solutions that align with Klaviyo’s mission of empowering businesses through data-driven insights.

Empower decision-makers with timely insights at Code Metal. Here, real-time physics simulations, AI-driven insights, and operational actions coalesce into expansive data streams. As the lead for our Visualization & Frontend team, you will transform this overwhelming influx of information into sophisticated, impactful experiences that inform multi-billion-dollar strategic choices in force design, guided by wargaming principles. We seek a hands-on architect to construct a modular UI stack, navigate complex geospatial and temporal data, and mentor a select group of talented engineers to deliver high-quality products swiftly.Your Responsibilities Architect an innovative UI framework: Create a component library and plugin architecture that enables internal teams and future partners to enhance visualizations without altering the core codebase. Render data at scale: Develop responsive visualizations that combine live simulation outputs, AI insights, and historical data into a seamless, interactive timeline. Integrate smoothly: Utilize FastAPI/ZeroMQ endpoints from the backend and provide well-versioned client APIs for mission planning and dashboards. Collaborate with stakeholders and UX design leads: Continuously refine user experience based on performance metrics and feedback from Air Force wargamers and UX specialists. Lead by example: Promote UI/UX best practices, conduct code reviews, participate in design critiques, and implement automated testing; support team members in becoming force multipliers. Continuous deployment: Manage the CI/CD pipeline for web and desktop applications, with a focus on DoD accreditation and cross-domain distribution. Why Join Code Metal? Impactful mission: Your visualizations will contribute to discussions that shape the future of military force structure. Agility: Work in tight iterations with small teams—design in the morning and deploy by evening. Ownership: No bystanders here—every engineer plays a crucial role in shipping meaningful code.

At Klaviyo, we celebrate the diverse backgrounds, experiences, and perspectives that each Klaviyo (as we refer to ourselves) contributes to our workplace daily. We firmly believe that everyone deserves an equal opportunity for success and value the unique experiences each individual brings beyond traditional job qualifications. If you find yourself closely aligned with our job description but not a perfect match, we encourage you to apply. Curious about life at Klaviyo? Discover how we empower creators to take charge of their own journey by visiting klaviyo.com/careers .Klaviyo is rapidly expanding, and we are seeking talented individuals at all skill levels to join our diverse teams. To learn more about our engineering culture, visit https://klaviyo.tech. We thrive on solving complex engineering challenges and seek Engineers who not only specialize in specific areas but are also enthusiastic about building, owning, and scaling features from the ground up while overcoming any obstacles or technical hurdles that arise. We inspire one another to step outside our comfort zones, learn new technologies, and continuously improve our day-to-day experiences. Klaviyo operates a high-performance real-time data platform designed for massive scalability on Amazon Web Services (AWS). Our Engineers come with diverse backgrounds and expertise across various programming languages and disciplines.ResponsibilitiesAs part of the Data Platform team, you will engage with large-scale distributed systems and databases to drive essential Klaviyo functionalities and generate insightful, data-driven conclusions. Your role will involve designing, building, and maintaining systems that support various engineering teams at Klaviyo. Collaborating with a cross-functional team, you will contribute to system design, write high-quality code, create infrastructure, and manage large-scale systems in a production environment.Team Tech StackAWSPythonKubernetesMySQLClickhouseKafkaSparkFlinkIcebergTerraformAirflow

Join our innovative Social Team as a Software Engineer II at Klaviyo, where you'll play a pivotal role in enhancing our platform's capabilities. We are looking for a passionate individual who thrives in a collaborative environment and is eager to tackle complex challenges in software development. You will work closely with cross-functional teams to design, implement, and improve features that impact our users directly.

About 1upHealth At 1upHealth, we are dedicated to transforming healthcare by unlocking health data and enhancing interoperability through our cutting-edge, cloud-native data infrastructure. Our platform empowers payers, providers, and digital health companies to securely and reliably ingest, normalize, and exchange clinical and claims data at scale, all while maintaining robust compliance standards. As a remote-first U.S. company, we cultivate a culture centered around collaboration, transparency, and making a meaningful impact. Role Overview We are in search of a dynamic and experienced Software Engineering Manager to spearhead our talented development teams in delivering exceptional products and platforms. In this pivotal role, you will lead people management, ensure delivery excellence, and shape technical strategies in collaboration with Tech Leads, Product partners, and cross-functional teams. Your contributions will be vital in executing our product roadmaps while addressing technical debt effectively. Key Responsibilities Leadership & Team Development Guide, mentor, and nurture engineers through regular one-on-one sessions, coaching, performance evaluations, and management processes. Cultivate an inclusive, collaborative, and high-performance engineering culture. Recruit, onboard, and retain exceptional engineering talent. Process & Delivery Management Collaborate with Product and Engineering leadership to establish clear, attainable roadmaps and objectives, ensuring timely delivery. Identify and implement continuous improvements for our Agile practices and delivery workflows across the team. Monitor and enhance engineering metrics, focusing on code quality and reducing technical debt. Advocate for robust Software Development Life Cycle (SDLC) practices, including testing, CI/CD, security evaluations, and operational readiness. Architecture & Technical Strategy Provide technical guidance and partake in architectural decision-making for both product and platform development. Collaborate with Tech Leads to design scalable systems that handle high-volume healthcare data workloads. Champion principles of reliability, observability, security, and cost-effective architecture across all services and products. Ensure compliance with privacy and secure development standards. Cross-Functional Collaboration

Role Overview CarGurus is hiring a Software Engineer II to focus on developer experience in Boston, Massachusetts. This position centers on making life easier for fellow engineers by improving the tools and frameworks they use every day. What You Will Do Work with cross-functional teams to identify and address pain points in the software development process Design and implement solutions that streamline workflows for engineering teams Build and maintain internal tools and frameworks that help teams deliver reliable, high-quality products About the Team This group collaborates closely with engineers across CarGurus to support efficient, effective software delivery. The focus is on practical improvements that make a real difference in daily development work.