Senior Software Engineer II

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.

At WHOOP, we are dedicated to revolutionizing human performance and extending healthspan. Our mission is to empower individuals to reach their optimal potential by providing comprehensive insights into their physiological well-being through our cutting-edge wearable technology. By continuously monitoring vital metrics, we deliver personalized recommendations that enhance fitness, health, and recovery.The Growth Team at WHOOP embodies a dynamic, fast-paced, and experimentation-focused environment. Our primary objective is to drive user acquisition, activation, and retention through a data-driven approach. We rigorously evaluate the performance of our features and iterate based on quantifiable results.As a Software Engineer II on the Growth Team, you will play a pivotal role in developing features that significantly influence our business metrics and member growth. Your collaboration with cross-functional teams will be essential in designing, measuring, and refining high-impact mobile experiences that resonate with our users.

Join Klaviyo as a Senior Software Engineer focused on Growth, where you'll play a pivotal role in enhancing our platform's capabilities. You will work closely with cross-functional teams to design, develop, and implement innovative solutions that drive user engagement and expand our customer base. This is an exciting opportunity to leverage your technical expertise in a dynamic environment.

About SunoSuno is a transformative music company dedicated to unleashing creativity. With our cutting-edge AI music model, we provide an innovative platform featuring Suno Studio, a revolutionary generative audio workstation. Whether you are a casual shower-singer, an aspiring songwriter, or an established artist, Suno enables a diverse global community to create, share, and explore music, making the joy of musical expression accessible to everyone.About the RoleWe are seeking a dynamic Growth Engineer to become an integral part of our innovative team. This role is ideal for individuals who are enthusiastic about leveraging engineering skills to enhance user acquisition and engagement. You will collaborate closely with our product and growth teams, employing data and technology to create compelling experiences that introduce Suno to millions of new users.Discover more about this opportunity at Suno!Your ResponsibilitiesDesign and refine features that propel growth, enhance onboarding, and boost engagement for Suno’s music applications.Conduct data-driven experiments aimed at optimizing user acquisition, retention, and conversion rates.Collaborate with product and marketing teams to create systems for analyzing user behavior, identifying growth opportunities, and driving Suno’s expansion.Build scalable, high-performance systems and integrations to support growth initiatives and marketing campaigns.Your QualificationsA minimum of 5 years of experience in engineering, growth, or a related technical field.In-depth experience in full-stack development, preferably with a focus on growth engineering or analytics.Demonstrated expertise with data pipelines, analytics platforms, and user tracking tools (experience with Segment, Amplitude, Mixpanel, Statsig, and/or Snowflake is advantageous).Ability to transform data into actionable insights and strategies.Web development experience (React, Typescript, NextJS) is beneficial.A strong passion for rapid iteration and a commitment to delivering exceptional user experiences.A genuine love for music and a spirit of experimentation is a significant plus.Bachelor's degree or equivalent is required.

Role Overview Whoop is looking for a Senior Frontend Software Engineer to work on growth-focused projects in Boston, MA. This role centers on improving user experience and increasing engagement across our platform. What You Will Do Work closely with teams from different disciplines to design and deliver new features and improvements. Develop scalable, efficient, and visually polished frontend applications. Apply frontend expertise to create solutions that support Whoop’s mission and meet user needs. What We’re Looking For Strong background in frontend technologies. Experience building user-facing applications with attention to performance and design. Ability to collaborate effectively with engineers, designers, and product managers.

About SunoSuno is a visionary music company dedicated to enhancing creativity and imagination. Leveraging cutting-edge AI music technology, we provide a unique creative platform, featuring Suno Studio—a revolutionary generative audio workstation. Whether you're a casual shower singer, an aspiring songwriter, or an established artist, Suno empowers a diverse global community to create, share, and explore music, making the joy of musical expression accessible to everyone.About the RoleWe are seeking a passionate Growth Engineer to join our innovative team of early-stage generalists. This role is pivotal in driving user acquisition and engagement through engineering excellence. You will collaborate closely with our product and growth teams, harnessing data and technology to enhance the user experience and expand Suno's reach to millions of new users.What You’ll DoDesign and optimize features that promote growth, onboarding, and user engagement for Suno’s music applications.Conduct data-driven experiments to enhance user acquisition, retention, and conversion rates.Collaborate with product and marketing teams to develop systems that analyze user behavior, uncover opportunities, and fuel Suno’s growth.Build scalable and high-performance systems and integrations that support our growth initiatives and marketing campaigns.What You’ll Need5+ years of experience in engineering, growth, or a closely related technical field.Extensive knowledge of full-stack development, especially in growth engineering or analytics.Demonstrated experience with data pipelines, analytics platforms, and user tracking (familiarity with tools like Segment, Amplitude, Mixpanel, Statsig, and/or Snowflake is advantageous).Ability to transform data into actionable insights and strategic plans.Proficiency in web technologies (React, Typescript, NextJS) is a plus.A strong desire to iterate rapidly and a commitment to providing an exceptional user experience.A genuine passion for music and experimentation will be beneficial.A Bachelor’s degree or equivalent experience is required.Additional Notes: All applicants must be eligible to work in the United States.

Join WHOOP on our mission to enhance human performance and extend healthspan. We empower our members with insights drawn from advanced wearable technology that translate complex physiological data into personalized experiences, fostering improved fitness, health, and recovery.The Growth Team is a dynamic, fast-paced unit dedicated to driving user acquisition, activation, engagement, and retention. As a Software Engineer I on this team, you will play a vital role in developing and optimizing user-facing web experiences that influence key business and member metrics. Collaborating closely with seasoned engineers, product managers, and designers, you will help deliver high-quality features, conduct experiments, and continuously enhance the member journey.

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.

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.

At Klaviyo, we celebrate the diverse backgrounds, experiences, and perspectives that each Klaviyo (what we call ourselves) brings to our dynamic workplace. We believe that every individual deserves an equitable chance at success and we value the unique experiences each person contributes beyond conventional job prerequisites. If you feel you are a close but not an exact match for our requirements, we encourage you to apply. To learn more about life at Klaviyo, visit klaviyo.com/careers to discover how we empower creators to shape their own futures.Team Overview The Integrations team plays a crucial role in developing and maintaining Klaviyo's connections with various third-party vendors across diverse industries such as eCommerce, point of sale, payment processing, advertising, and fundraising. Our mission is to provide our customers with seamless interfaces that facilitate easy integration setup and management, while efficiently handling data transfer through robust pipelines. Collaborating closely with internal stakeholders, we enjoy significant exposure to Klaviyo’s customers, including businesses, partners, and third-party developers.***Must be able to work onsite in the Boston office at least three days per week***How You’ll Make an ImpactAs a Software Engineer on the Integrations team, you will be at the forefront of developing scalable, reliable, and maintainable integration solutions. Your contributions will help us create thousands of integrations across multiple verticals, enhancing both customer and developer experiences. Key components of our integration landscape include Klaviyo’s V3 APIs, third-party vendor APIs, as well as inbound and outbound data pipelines, and data mapping and transformation processes. You will have the opportunity to deepen your understanding of our end-to-end integration workflow and assist in scaling it to support Klaviyo’s growth into new verticals beyond eCommerce. You’ll collaborate with a talented team of software engineers, data scientists, product managers, and UX/UI designers, all dedicated to optimizing the integration experience with Klaviyo.

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.

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 WHOOP in our quest to revolutionize human performance and enhance healthspan. We empower our members to elevate their potential through a profound understanding of their bodily functions and daily habits.We are seeking a talented iOS Engineer II to become an integral part of our dynamic product teams focused on AI Experiences, Growth, and Ecosystem. In this role, you will develop features that not only scale our systems but also boost reliability, enhance user experiences, and provide our members with clinical-grade insights to support their physical, emotional, and hormonal health. From constructing shared frameworks and refining growth experiments to launching health-centric features, your contributions will significantly impact the lives of our members. You will collaborate with cross-functional teams, write clean and efficient code, and play a pivotal role in a platform dedicated to improving health outcomes and unlocking human potential on a large scale.

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.

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.