Senior Software Engineer at Klaviyo | Boston, MA

About UsPerk (formerly TravelPerk) is a pioneering platform for travel and spend management, designed to alleviate the burdens of tedious manual tasks that hinder productivity. Our advanced tools streamline the entire process, automating everything from travel bookings to expense management and invoice processing, effectively combating the shadow work that consumes hours, diminishes morale, and stifles innovation. Our mission is to empower genuine work that drives significant impact.We are proud to serve over 10,000 clients globally, including prominent companies like Wise, On Running, Breitling, and Fabletics. We aim to address the staggering 7 hours of lost productivity per employee each week, a challenge that translates to a $1.7 trillion problem.Founded in 2015, Perk has rapidly expanded into a global entity with more than 1,800 employees across 12 offices, including our headquarters in Boston and London. Our commitment to innovation, control, and simplicity is reshaping the way businesses operate and enhancing the overall employee experience.At Perk, we prioritize our core values, emphasizing ownership, delivering a 7-star experience, and fostering a collaborative team environment. We cherish curiosity, purpose, and mindset, recognizing that these qualities unlock the true potential within each individual. Our talent team comprises leading professionals from the travel and SaaS sectors, representing over 70 countries. If you are eager to make a tangible impact and influence how millions of individuals engage with work, we welcome you to join our team.Discover more about us at www.perk.com.We seek intelligent individuals rather than stack experts who can integrate the best tools and processes to drive success within our US-based Spend Engineering teams.In this role, you will collaborate daily with our product team to design, architect, and implement our innovative product, transforming the business travel and spend management experience.

About UsPerk is revolutionizing travel and spend management with our intelligent platform designed to minimize the tedious manual tasks that hinder productivity. Our tools streamline everything from travel bookings to expense tracking and invoice processing, allowing companies to focus on what truly matters. By tackling the issue of shadow work, which leads to significant productivity loss, we aim to enhance workplace efficiency and morale.We proudly serve over 10,000 clients globally, including industry leaders like Wise, On Running, Breitling, and Fabletics. Our mission is to recover the 7 hours of lost productivity per employee weekly, addressing a staggering $1.7 trillion problem.Founded in 2015, Perk has expanded to a global presence with over 1,800 dedicated professionals across 12 offices, including our headquarters in London and Boston. We blend innovation, control, and simplicity to transform workplace dynamics.Our core values include ownership, delivering exceptional experiences, and teamwork. We prioritize curiosity, purpose, and mindset to unlock each individual’s potential. Our talent team is a diverse group representing over 70 countries, and we are eager to welcome those who are passionate about making a real impact in the way people experience work.For more details, visit www.perk.com.As a Senior Software Engineer, you will collaborate closely with our product team to design, architect, and implement innovative solutions for our platform. Your expertise will help us enhance the experience of booking and managing business travel and expenditures.

Join Xometry as a Senior Software Engineer, where you will play a pivotal role in developing innovative software solutions that drive our business forward. You will collaborate with talented engineers to create applications that enhance our platform’s functionality and user experience.

perk is seeking a Senior Account Executive in Boston. This position centers on building and maintaining strong client relationships. The Senior Account Executive works directly with clients to understand their needs and support their goals, while also helping the company reach its targets. Role overview Develop and manage relationships with both new and existing clients Communicate regularly to understand client objectives and priorities Work alongside internal teams to deliver effective solutions Support client success and contribute to business goals Requirements Strong communication and interpersonal skills Experience in account management or a related field Strategic thinking and problem-solving ability Dedication to delivering high-quality service This role is based in Boston, United States.

At Xometry (NASDAQ: XMTR), we are at the forefront of innovation, bridging visionary ideas with the manufacturers capable of actualizing them. Our digital marketplace equips manufacturers with essential resources to expand their business, facilitating seamless access to global manufacturing capabilities for Fortune 1000 clients.We are currently in search of a Senior Software Engineer to join our dynamic software engineering team. In this pivotal role, you will collaborate within a talented group to develop and enhance solutions for the Post Order/Order Management team. Your contributions will be vital in ensuring the reliability, scalability, and security of the Xometry platform.

deleteme is hiring a Senior Software Engineer in Boston, MA. This position centers on building software that helps clients manage their online privacy. The work involves designing, developing, and refining applications in close partnership with colleagues from different specialties. Role overview This role focuses on creating and improving advanced software solutions. Collaboration is key: expect to work alongside teams across the company to ensure applications are reliable and effective. Who succeeds here Strong interest in technology and privacy-focused products Comfort working on complex problems Ability to adapt and contribute in a changing environment If solving tough technical challenges and making a difference for users motivates you, consider joining the team at deleteme.

Join Via as a Senior Software Engineer, a vital position that will allow you to shape the future of secure and scalable software solutions. As part of our team, you'll be directly engaged in architecting innovative software that aligns with our mission and enhances the protection and sharing of critical data through cutting-edge Web3 and quantum-resistant technologies.About the Role:In this pivotal role, you will develop high-quality, secure software while addressing complex data challenges. This position is ideal for individuals who are passionate about innovation and committed to excellence.

About UsPerk, formerly known as TravelPerk, is a leading intelligent platform dedicated to travel and expense management. Our innovative solutions are designed to alleviate tedious manual tasks that hinder productivity, automating processes such as travel bookings, expense management, invoice processing, and more. By reducing this shadow work that consumes valuable time and dampens morale, we aim to empower professionals to engage in meaningful work that makes a real difference.We proudly serve over 10,000 companies globally, including renowned brands like Wise, On Running, Breitling, and Fabletics, addressing the staggering 7 hours of lost productivity per employee each week, a challenge that represents a $1.7 trillion issue in the workforce.Founded in 2015, Perk has rapidly expanded to a diverse global team of more than 1,800 employees across 12 offices, with headquarters in both London and Boston. Our mission is to blend innovation, control, and simplicity to revolutionize workplace dynamics and enhance employee satisfaction.At Perk, our core values drive us towards excellence; we strive to be owners of our work, deliver a 7-star experience, and collaborate as a unified team. We prioritize curiosity, purpose, and mindset, empowering individuals to unlock their full potential. Our talent team comprises top professionals from the travel and SaaS sectors, representing over 70 countries. If you are passionate about making a significant impact and transforming the work experience for millions, we want you on our team.Explore more at www.perk.com.

Together, we enhance the streaming experience. Join Roku in transforming the television landscapeRoku stands as the leading TV streaming platform across the U.S., Canada, and Mexico, with aspirations to empower every television globally. As pioneers in streaming technology, we aim to be the central platform connecting the entire TV ecosystem. Our mission is to bridge consumers to their favorite content, assist content publishers in growing and monetizing their audiences, and provide advertisers with unique engagement tools.From your first day at Roku, your contributions will be impactful and recognized. As a rapidly expanding public company, every team member plays a crucial role. You will have the chance to delight millions of TV streamers worldwide while gaining valuable experience across multiple disciplines. About the Team Our Advertising Engineering team develops the user interfaces and APIs powering Roku’s advertising initiatives, facilitating growth for Roku and strategic content partners like The Roku Channel. We function as a highly agile, service-oriented team that continuously ships updates—enhancing existing systems while improving usability, quality, performance, and scalability. Collaborating closely with UX, Product, and Commercial teams at Roku, as well as with external strategic partners, you'll deliver exceptional web applications and backend services at scale. We value relentless curiosity, a global perspective with local execution, and proactive problem-solving, combined with strong interpersonal skills and adaptability to evolving business demands. About the Role We are seeking a seasoned developer to join our team, specializing in building user interfaces and APIs to support advertising campaigns. The ideal candidate will possess endless curiosity and the ability to blend a global outlook with localized execution. You should be a determined problem solver and self-starter capable of driving initiatives in collaboration with product and commercial teams at Roku, as well as with external strategic partners. The successful candidate will exhibit a balance of technical and interpersonal skills, demonstrating agility in responding to shifting business requirements.

About LogRocketFounded in 2016, LogRocket is dedicated to enhancing the web experience for users everywhere. We address significant challenges faced by product managers and developers in grasping the nuances of user experience. As the pioneering platform, LogRocket provides teams with unparalleled insight into customer interactions through impeccable replays of user sessions, comprehensive logs, error tracking, and network activity analysis. Our impressive clientele includes over 2,800 esteemed organizations such as ClassPass, Capital One, Cisco, and Rippling, highlighting our commitment to excellence in software craftsmanship. Our engineering blog posts showcase our dedication to high-quality software development.Supported by prominent investors like Matrix Partners, Battery Ventures, and Delta-V Capital, we have successfully secured $55M in funding. We are excited to bring on talented professionals to fuel our growth as we strive to enhance society's interaction with software—this is where you come in.

Join InvoiceCloud as a Senior Software Engineer, where you will play a pivotal role in developing innovative solutions that simplify the payment process for customers. You will collaborate with a dynamic team of professionals who are dedicated to leveraging technology to enhance customer experience. This position offers the chance to work on cutting-edge projects in a fast-paced environment.

About UsPerk (formerly TravelPerk) is the innovative platform designed for comprehensive travel and spend management. Our mission is to eliminate the tedious, manual tasks that hinder productivity by automating processes including travel bookings, expense management, and invoice handling. By addressing the shadow work that consumes valuable hours and diminishes morale, we aim to empower teams to focus on impactful work.We proudly serve over 10,000 clients globally, including renowned companies such as Wise, On Running, Breitling, and Fabletics, tackling the staggering issue of lost productivity that amounts to $1.7 trillion per year due to inefficiencies.Established in 2015, Perk has expanded to a global workforce of over 1,800 employees across 12 offices, with main offices situated in London and Boston. We blend innovation with simplicity to revolutionize workplace dynamics and enhance employee satisfaction.At Perk, our core values drive us: we act as owners, deliver exceptional experiences, and function as a unified team. We foster a culture of curiosity and purpose to unlock the full potential of our talent. Our team consists of top professionals from the travel and SaaS sectors, representing more than 70 nationalities. If you are passionate about making a significant difference and influencing how millions engage with their work, we would love for you to join us.For more information, visit www.perk.com.

About Man GroupMan Group is a leading global alternative investment management firm dedicated to delivering superior returns for our discerning clients through our Systematic, Discretionary, and Solutions offerings. Our unique blend of talent and cutting-edge technology drives our investment strategies, which are based on extensive research and encompass both public and private markets across all major asset classes, with a significant emphasis on alternatives. We adopt a partnership model with our clients, fostering deep relationships and crafting customized solutions to meet the investment objectives of the millions of retirees and savers we serve.With our headquarters in London, we manage $227.6 billion* in assets and have a global footprint with multiple offices worldwide. Man Group plc is publicly traded on the London Stock Exchange under the ticker EMG.LN and is included in the FTSE 250 Index. For more details, please visit www.man.com.* As of 31 December 2025The RoleAs a Senior Software Engineer within the Front-office Engineering team at Man Numeric, you will collaborate closely with Quantitative Researchers and Portfolio Managers. You will face a diverse range of challenges, including integrating new datasets, implementing innovative trading signals, developing portfolio optimization tools, constructing data visualization frameworks, enhancing our research platform, and optimizing the performance of existing code through efficient numerical algorithms and cluster-computing solutions.Our TechnologyOur technology stack predominantly operates on Linux, with most of our development taking place in Python, utilizing the complete scientific stack including NumPy, SciPy, Pandas, statsmodels, and scikit-learn among others. Java is employed for systems requiring high data throughput. We rely heavily on MongoDB and MS SQL for data storage.We utilize Control-M and Airflow for workflow management, Kafka for data pipelines, Bitbucket for source control, Jenkins for continuous integration, Grafana + Prometheus for metrics collection, ELK for log shipping and monitoring, Docker for containerization, OpenStack for our private cloud, Ansible for architecture automation, and Slack for internal communications. Our technology landscape is dynamic; we continuously assess new tools and libraries.

Compass creates technology that supports residential real estate agents and their clients. Since 2012, the company has focused on building a platform to help people find their place in the world, with the goal of making the buying and selling experience better for everyone involved. The Senior Software Engineer II role is based in Boston. This position focuses on developing and maintaining core components of the Compass platform, including search, user authentication, and transaction management. The work impacts both agents and end users, influencing how they interact with Compass daily. Key responsibilities Design and build microservices that support essential areas of the platform Lead development efforts to enhance consumer-facing features Work on projects that improve search, authentication, and transaction management Collaborate with engineering peers to deliver scalable and reliable solutions Support Compass’s growth as a technology-driven brokerage Requirements Strong experience with microservices architecture Background in building scalable products or platforms Ability to lead technical projects and deliver results Interest in advancing consumer and agent experiences in real estate technology This position offers the chance to solve meaningful technical challenges and influence how people use the Compass platform every day.

About Hike MedicalHike Medical is revolutionizing musculoskeletal care, beginning with foot health. Our innovative AI-driven vision platform transforms a quick 30-second web-based foot scan into custom-engineered, 3D-printed insoles that help prevent pain before it occurs. We are already safeguarding the well-being of on-their-feet workforces at Fortune 50 companies, significant health systems, and manufacturers across middle America. Recently funded by top-tier venture capitalists, we maintain a fast-paced, no-nonsense execution culture from our Boston Seaport headquarters as we aim for $100M ARR and to support 10 million Americans in their daily lives.First and only PDAC-approved 3D printed custom insole globally Three proprietary AI models enhancing the user experienceTwo product lines: one for employers & health plans, and another for clinics to provide affordable foot care, creating a beneficial cycle of clinician-validated data.Expanded access to care for over 100,000 Americans to dateRevenue growth of 10x from 2023 to 2024, with projections to continue this trend in 2025. Consistently profitable month-over-month.The RoleAs a Senior Software Engineer, you will develop and deploy the essential systems behind Hike’s AI healthcare platform. Serving as the backbone of Hike's rapidly growing, mission-driven initiative, you will design scalable services, implement production-ready AI, and create user experiences that enhance patient outcomes. From your first day, you will enjoy significant autonomy and a direct impact on transforming the US healthcare landscape.Why This Opportunity is Career-Defining:Your code will empower individuals to move without pain.You will have complete autonomy to create, deploy, and witness the outcomes—transitioning from concept to production in mere hours or days.You’ll collaborate with a high-performing team of elite engineers and AI researchers, where every addition substantially influences our mission.You'll thrive in a culture that rejects bureaucracy, discourages unnecessary complexity, and values trust as our core principle.What You'll Work On:Architect, build, and refine high-performance, scalable systems that drive AI-based solutions.Design resilient, serverless architectures within a TypeScript and AWS environment.Create developer-friendly APIs and SDKs to enhance integration and usability.

About Speechify Speechify turns articles, documents, and books into audio, making it easier for people to absorb information in ways that fit their lives, at a desk, on the move, or whenever suits them. As a leader in audio information, Speechify continues to grow quickly, shaping how users learn and access content. Role Overview: Senior Software Engineer – Core Experiences The Core Experiences Team builds and maintains the essential services and SDKs that power Speechify’s user experience across platforms. This role suits engineers who enjoy working where product and infrastructure meet, think strategically, and care about designing clear APIs and systems that are easy to use and maintain. What You Will Do Collaborate with Product Teams to define project scopes, improve processes for faster customer feedback, and manage integration and UX decisions. Deliver solutions through Speechify’s cross-platform SDK. Optimize existing features by improving performance, speeding up load times, and enhancing intelligent parsing with better algorithms and abstractions. Develop and deploy cloud functions, lightweight backend services, and background jobs using Kotlin. What We Look For Strong systems thinking, with an eye for simple and effective design. Ability to quickly generate ideas, prioritize tasks, and recognize which efforts need more time versus those that can move fast. Focus and adaptability in a high-growth startup setting, balancing teamwork with independent work. Excellent collaboration skills, able to work with designers, marketers, and product managers to move projects forward. Location Boston, MA, USA

About SimpliSafe At SimpliSafe, we are an innovative home security company dedicated to safeguarding the life you've built. Our mission is to ensure that Every Home is Secure. We foster a culture that values your professional growth as much as our commitment to our customers. With an ego-free environment that encourages collaboration and innovation, we welcome individuals who are passionate about making a significant impact in the home security industry. We don’t just want you to work here; we want you to flourish and succeed. We embrace a hybrid work model, allowing our teams to balance their time between the office and home. Our hybrid approach typically requires in-person collaboration on two core days, often Tuesday, Wednesday, or Thursday, while providing the flexibility to work remotely the rest of the week. This model enables us to leverage the best of both worlds for our productivity. Why Join Us? As we continue to grow, we seek talented, intelligent, and humble individuals who align with our values and are eager to join us in revolutionizing the home security landscape while pursuing our mission of keeping Every Home Secure. Your Role You will be part of SimpliSafe’s Device Cloud Services team, striving to enhance cloud-based systems that allow customers to manage their home security from anywhere globally. We are in search of a driven and experienced Senior Software Engineer to architect, develop, maintain, and take ownership of software solutions. As a backend team, we tackle large-scale distributed challenges, ensuring our customers enjoy real-time access and control over their security systems. Our core principles revolve around life safety, reliability, simplicity, and performance. Key Responsibilities: Design and develop robust solutions, mentoring junior engineers to grasp product requirements and create scalable, reliable systems. Implement and maintain tests to ensure high-level functionality and safe refactoring of solutions. Engage in long-term support and maintenance tasks, including performance optimization, bug fixes, feature enhancements, design improvements, and automation. Document the systems you develop to facilitate future maintenance and upgrades by subsequent developers. Act as an on-call first responder for software under your team's purview.

At Veeva Systems, we are dedicated to our mission and are recognized as trailblazers in the industry cloud, empowering life sciences companies to expedite the delivery of therapies to patients. As one of the fastest-growing SaaS companies in history, we achieved over $2 billion in revenue in our previous fiscal year, with immense growth opportunities on the horizon.Our core values—Do the Right Thing, Customer Success, Employee Success, and Speed—are the foundation of our culture. Distinctively, we made history in 2021 by becoming a public benefit corporation (PBC), committed to balancing the interests of our customers, employees, society, and investors.As a Work Anywhere company, we offer the flexibility to choose between working from home or in the office, allowing you to thrive in your preferred environment.Join us in our mission to transform the life sciences industry and make a positive impact on our customers, employees, and communities.The RoleWe are seeking a talented Senior Site Reliability Engineer to join our Vault Platform team. In this role, you will be pivotal in ensuring the scalability and reliability of our enterprise applications. You will face complex challenges on a global scale, leveraging your extensive knowledge in Java and modern open-source technologies to significantly enhance our production systems.The ideal candidate will possess substantial experience with Java applications and the latest open-source technologies, particularly from enterprise software development or high-growth technology firms. As a Senior SRE, you should be naturally inquisitive and possess exceptional problem-solving skills. You will bring a unique engineering mindset, comprehending how systems integrate in production to function seamlessly for hundreds of customers across North America, Europe, and Asia.

Perk seeks an Account Executive to join the team in Boston. This position centers on building new business and supporting current client accounts. Success depends on understanding what clients need and connecting them with the right solutions from Perk’s suite of offerings. Key responsibilities Identify and pursue new sales opportunities to grow the client base Develop and maintain strong, long-term relationships with clients Work directly with clients to understand their goals and recommend suitable solutions Maintain a high standard of client satisfaction throughout the sales process Location This position is based in Boston.