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Experience Level
Experience
Qualifications
Experience in software development with proficiency in languages such as Java, Python, or JavaScript. Strong understanding of software development methodologies and best practices. Ability to work collaboratively in a team-oriented environment. Excellent problem-solving skills and attention to detail. Experience with version control systems like Git.
About the job
Klaviyo is hiring a Software Engineer II focused on Developer Experience in Boston, MA. This role centers on improving the tools and systems that support developers across the company. The goal: make it easier for engineers to build and ship strong products.
What you will do
Work with teams from different disciplines to refine and enhance developer workflows
Contribute to the design and delivery of software solutions that raise the bar for developer productivity
Help maintain and evolve internal tools and systems to support a smooth engineering experience
About Klaviyo
Klaviyo is a leading marketing automation platform designed to help online businesses grow by delivering personalized experiences through data-driven insights. Our innovative solutions empower brands to build meaningful customer relationships and drive revenue growth.
Full-time|$149K/yr - $198.5K/yr|On-site|Boston, Massachusetts, United States
Mission Overview: We are seeking a highly skilled Senior Software Engineer to spearhead the development and execution of automated workflows, advanced tooling, and insightful analytics that will empower our autonomy stack to achieve unparalleled scalability. Your expertise will be crucial in transforming vast datasets into actionable engineering insights, ensuring that our software releases are resilient, thoroughly validated, and prepared for real-world deployment. Key Responsibilities: Design Intelligent Tooling: Lead the design and implementation of sophisticated automation systems aimed at categorizing and elucidating complex system behaviors using advanced data modeling techniques to expedite solution delivery. Drive Analytical Initiatives: Take charge of developing impactful performance visualization tools that convert raw metrics into clear, actionable insights related to on-road performance. Enhance Release Engineering: Leverage your experience to refine our release processes, steering the team towards a highly automated deployment framework that upholds quality while boosting efficiency. Advance Simulation Techniques: Play a pivotal role in enhancing our virtual testing environments, ensuring our simulation suites deliver the high-fidelity feedback necessary to accurately interpret releases. Collaborate Across Disciplines: Engage within a large, multi-disciplinary codebase to facilitate seamless integration between planning, motion, and control teams. Qualifications: Substantial experience in building production-grade applications, tools, and pipelines using Python. Proficient in navigating and contributing to large, complex codebases where modularity and thorough documentation are essential. Demonstrated success in delivering software in a production environment, with familiarity in CI/CD practices, version control at scale, and rigorous release cycles. Strong curiosity about data, with the capability to extract meaningful patterns from complex, high-dimensional datasets. A deep passion for a driverless future, with an understanding of the critical nature of deploying software that interacts with the physical environment. Bonus Qualifications (not mandatory): Experience with C++ in a Linux environment. Familiarity with Machine Learning frameworks or Large Language Model (LLM) integration. A background in robotics middleware (ROS, DDS) or autonomous systems.
FieldAI is at the forefront of revolutionizing the interaction between robots and the real world. Based in Boston, our dynamic R&D team is dedicated to developing AI systems that are risk-aware, reliable, and ready for field deployment. Our solutions address some of the most challenging problems in robotics, unlocking the full potential of embodied intelligence. We pride ourselves on a pragmatic approach that combines cutting-edge research with practical deployment, moving beyond standard data-driven methods and transformer-only architectures. Our systems are already deployed worldwide, and we are committed to continuous improvement through rapid iterations based on real-world applications.We are looking for enthusiastic engineers to join our team and contribute to the advancement of our humanoid robot software stack. In a fast-paced environment, you will collaborate with a focused team to integrate various subsystems such as perception, planning, locomotion, and manipulation into a seamless, reliable system that operates effectively in unstructured real-world environments. A key responsibility will be to transition research-grade capabilities into robust, production-quality systems. The ideal candidate will possess a solid understanding of robotic software systems and demonstrate the practical skills necessary for delivering high-quality, maintainable code within a small, dedicated team.
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.
NOBULL is a vibrant wellness community that encourages and motivates individuals to enhance their mental, emotional, and physical well-being. Through our innovative footwear, stylish apparel, nutritious offerings, and a mindset geared towards success, we equip you with the tools and strategies necessary for your personal journey of self-improvement. Our tight-knit team is comprised of dedicated, bright, and passionate individuals committed to making a positive impact in people’s lives.The Integration Engineering Manager plays a pivotal role in architecting, executing, and sustaining comprehensive systems and data integrations throughout our enterprise ecosystem. This position merges technical know-how with leadership, serving as a liaison between IT, business systems, and data engineering. The manager will supervise API development, EDI workflows, and iPaaS platforms including Celigo, Workato, Fivetran, and SPS Commerce, along with custom scripting utilizing Python, SQL, and cloud functions (AWS Lambda, Azure). This role is essential for fostering new integrations, enhancing existing ones, and managing Tier 2/3 support in conjunction with IT Helpdesk, data teams, and business stakeholders.Ensuring smooth data flow and system interoperability is crucial for providing precise and timely information that guides business decision-making. Our operational landscape features NetSuite ERP, Shopify eCommerce, Snowflake Data Warehouse, and WMS platforms interconnected through APIs, EDI, and iPaaS tools. Future projects include the implementation of an Order Management System (OMS) to facilitate omnichannel order lifecycle and fulfillment workflows.
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.
Full-time|On-site|Boston, Massachusetts, United States
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 Our Team at Merlin Labs:At Merlin Labs, we are pioneering the future of aviation as a venture-backed aerospace startup dedicated to developing a non-human pilot system. Our mission is to enable both reduced crew and uncrewed flight operations, addressing some of the most pressing challenges in the aviation industry. Supported by leading global investors, we are on a trajectory of growth that empowers our clients to harness the power of autonomy today.All of the sky, none of the limits!Who You Are:Are you an innovative and skilled mechanical engineer with a deep passion for advancing aviation technology? Do you thrive in a dynamic environment and believe in the power of agile and robust development methodologies? Are you eager to take ownership of critical components in new product development? If you answered yes, then you could be the perfect addition to our Mechanical Engineering team at Merlin Labs.
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.
Role overview Klaviyo is hiring a Software Engineer II focused on Developer Experience in Boston, MA. This role centers on improving the tools and systems that support developers across the company. The goal: make it easier for engineers to build and ship strong products. What you will do Work with teams from different disciplines to refine and enhance developer workflows Contribute to the design and delivery of software solutions that raise the bar for developer productivity Help maintain and evolve internal tools and systems to support a smooth engineering experience
Full-time|On-site|Boston, Massachusetts, United States
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.
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.
At WHOOP, our mission is to enhance human performance and extend healthspan. We empower our members to optimize their performance and longevity through profound insights into their bodies and daily routines. A critical aspect of our mission is safeguarding our members' data while ensuring our systems scale securely and reliably. We are seeking a talented Software Engineer II specializing in backend development to build and refine the systems that fuel our platform. This pivotal role will play a direct part in delivering scalable and secure services that support millions of members globally. While backend development expertise is essential, familiarity with cybersecurity principles (such as data privacy, authentication, and authorization) or cloud infrastructure concepts (including AWS, Infrastructure as Code, and Kubernetes) will be highly regarded. This position offers a unique opportunity to align with either our Product Security team, focused on security compliance and data privacy, or our Application Infrastructure team, which emphasizes scalability, reliability, and developer support. In either capacity, you will help shape core platform practices and contribute to WHOOP's growth trajectory.
Sep 24, 2025
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