Principal Software Engineer at Xometry | Waltham, MA

At Constant Contact, we pride ourselves on being a team of exceptional individuals who take initiative and make a real difference. With the mindset, integrity, and courage of a small business owner, our work empowers people everywhere to chase their dreams. We play a vital role in supporting business owners, entrepreneurs, non-profits, and individuals by providing the necessary tools and guidance to flourish online. We thrive on new challenges and possibilities, and we're just getting started!We are looking for a Principal Product Manager to spearhead the next generation of our revenue engine. This high-impact strategic position sits at the heart of our mobile-first evolution and AI-driven value delivery. You will lead the way in defining how Constant Contact unlocks enterprise-grade value through innovative monetization frameworks.In this role, you will act as the "Squad Leader" for Monetization, taking full ownership of value. Rather than merely creating payment pages, you will oversee broader strategic monetization levers, including packaging, pricing models, and intelligent cross-sell/up-sell logic. You will connect high-level strategy with relentless execution, driving ARPU expansion and modernizing our revenue engine for a mobile-centric audience.This position exists because we believe that incremental change is insufficient; we are transforming a legacy revenue engine for a mobile-first, AI-powered future.What You’ll DoOwn the Monetization Strategy: Develop comprehensive strategies that go beyond transactional infrastructure to effectively package, price, and sell our value. You will drive ARPU expansion through smart cross-sells, up-sells, and net retention initiatives, managing trials, paywalls, in-product upgrade moments, plan comparisons, expansion paths, downgrades, and renewals.Lead with Velocity: As the Squad Leader for the Monetization team, you will cultivate a culture of autonomy and speed. Transitioning from "output" (shipping features) to "outcomes" (driving revenue and retention), you are empowered to make impactful decisions, conduct rapid experiments, and challenge outdated monetization assumptions to enhance customer value and revenue growth.Drive the Mobile Transformation: With a legacy rooted in desktop, you will transform monetization flows for a mobile-first world, ensuring seamless purchase and upgrade experiences on any device.

Join ServiceNow as the Director of Monetization Strategy, where you will spearhead innovative approaches to maximize our revenue streams and enhance customer satisfaction. In this pivotal role, you will collaborate with cross-functional teams to develop strategic frameworks and drive our monetization initiatives. Your expertise will ensure that our products not only meet market demands but also exceed our financial targets.

At ZoomInfo, we accelerate careers by fostering an environment where innovation thrives, and where you can perform at your best. Our dynamic team is dedicated, supportive, and celebrates our collective achievements. Equipped with advanced tools and a culture that fuels your ambition, you will not just contribute—you will drive impactful change swiftly.At ZoomInfo, we take pride in integrating AI into our core products, having completely reengineered our offerings around it. Our cutting-edge multi-agent orchestration platform facilitates intelligent automation across various product surfaces, including Copilot, GTM Studio, and MarketingOS. We are in search of a visionary professional to lead the capability layer that dictates the functionalities of our agents.This role encompasses ownership of the agentic tools ecosystem, which includes MCP servers, LangChain integrations, and other composable building blocks that empower our agents. Every new capability our agents acquire is routed through your platform, and every integration that connects ZoomInfo’s intelligence with the broader ecosystem is guided by your roadmap. When our agents engage in activities such as booking meetings, enriching records, or orchestrating complex go-to-market workflows, they are utilizing the tools you've defined, optimized, and deployed.The landscape of agentic tools evolves rapidly, with new standards and integration patterns emerging regularly. You will work on the frontier of this technology, assessing what is ready for production versus what remains exploratory, and making critical decisions that shape how ZoomInfo’s agents interact with the external environment.This is a role with substantial infrastructure influence; when you build one tool effectively, every agent across all products benefits. By defining a single integration pattern accurately, you create a template for numerous future implementations. Your architectural choices do not merely deliver features—they multiply impact across the organization.

At Constant Contact, we pride ourselves on being a team of dynamic individuals who take ownership and create meaningful impacts, embodying the integrity and courage of small business owners. There is immense satisfaction in knowing that your efforts are empowering individuals everywhere to chase their dreams. We play a vital role in supporting business owners, entrepreneurs, non-profits, and individuals by providing the necessary tools and assistance for their online growth. Energized by fresh challenges and new possibilities, we are just getting started!As the Principal Product Designer, you will hold the highest design position within the product organization, responsible for leading the strategy and execution of our most intricate and high-impact product initiatives. Operating at the intersection of product vision, engineering constraints, and user needs, you will tackle complex problems that define the future of our platform. This role demands a leader capable of establishing a design strategy for an entire product pillar and influencing design decisions across various teams. Depending on your expertise and organizational requirements, you may function as a strategic Individual Contributor (IC), emphasizing high-leverage design and vision work, or take on the role of managing and mentoring a small team of senior designers.

Join Acorn Product Development, a leading innovator in product design and engineering dedicated to enhancing global manufacturability. With offices strategically located in Silicon Valley, Boston, Denver, and China, we pride ourselves on our dynamic and collaborative environment.Every year, top-tier Fortune 100 and 500 companies, alongside exciting start-ups, engage Acorn to assist in the design of their latest product innovations. Our expertise spans across robotics, industrial applications, life sciences, medical devices, and consumer products.At Acorn, working as a Mechanical Engineer is not just a job; it's an opportunity to learn, grow, and make meaningful contributions within an exceptional team. If your background aligns with our needs, we are eager to connect! This is an onsite role based in our Waltham, MA office.

At ZoomInfo, we are dedicated to accelerating careers. Our fast-paced environment encourages bold thinking and empowers you to produce your best work. You will collaborate with passionate teammates who challenge one another and celebrate achievements together. With tools that enhance your contributions and a culture that supports your aspirations, you won’t just be part of the team—you’ll be instrumental in driving results. Principal Software Engineer, Applied AILocation: Remote or HybridTeam: Applied AILevel: PrincipalJoin Us in Reimagining B2B IntelligenceAt ZoomInfo, we are building the future of B2B marketing intelligence—and we’re seeking engineers who are eager to help shape that future.As a Principal Engineer on our Advertising, Company Intelligence, and Intent team, you will design and implement the fundamental systems powering our real-time marketing platform. From high-throughput advertising infrastructure to large-scale identity resolution and intelligent systems enhanced by LLMs, you will push the limits of scale, intelligence, and speed—delivering tangible business impact.Join a team engaged in a diverse array of ambitious, technically challenging projects—from APIs that process tens of billions of events daily to innovative buyer intent algorithms powered by LLMs, and a unified B2B identity graph. Based on your strengths and interests, you will be aligned with initiatives where you can make the most significant impact.This is a high-growth, high-ownership environment operating at the forefront of modern software engineering, data infrastructure, and applied AI.What You’ll DoDesign and build distributed systems capable of processing, enriching, and responding to billions of behavioral events in real-time.Develop high-performance APIs and services that support advertising, identity, and intent functionalities across the Marketing Platform.Utilize machine learning and large language models (LLMs) to analyze behavioral data, classify content, extract signals, and facilitate intelligent decision-making.Construct intelligent agents using frameworks like LangGraph or MCP to reason over data and power user-facing insights.Design and manage data pipelines employing tools such as Kafka, Kinesis, and ClickHouse to support both streaming and batch workloads.Ensure quality, performance, scalability, and observability across all systems you oversee.Collaborate cross-functionally with product managers, data scientists, and engineers to deliver customer-facing features.

At Xometry (NASDAQ: XMTR), we connect visionary thinkers with the manufacturers who make their ideas a reality. Our digital marketplace equips manufacturers with essential resources for growth while enabling Fortune 1000 companies to access global manufacturing capabilities seamlessly.Xometry is on the lookout for a Senior Product Manager, Post-Order Experience to take charge of refining the customer journey following order placement. From the moment an order is confirmed to its delivery and subsequent support interactions, your role will be pivotal in ensuring that every buyer feels informed, confident, and pleased throughout their engagement with Xometry.

About Allego:At Allego, our mission is to revolutionize modern sales enablement. As a rapidly expanding SaaS technology firm located in the heart of metro Boston, we have consistently achieved double-digit growth each year over our ten-plus year journey. We are proud to be recognized as a leading revenue enablement platform that sales, marketing, and enablement teams rely on and endorse. Allego empowers teams to close deals, achieve revenue targets, and maintain alignment amid changing circumstances by clarifying the next best actions. Our platform integrates learning, content, coaching, digital selling, and secure AI into everyday workflows, enabling consistent actions and results in complex sales environments. Our clients report significant benefits, such as 50% shorter sales cycles, 45% higher win rates, and considerable reductions in software expenses.We are honored to serve a diverse customer base, including major players from the Dow Jones Industrial Average, the largest U.S. banks, insurance companies, and global medical device and pharmaceutical firms. Our impressive growth has earned us accolades from The Boston Business Journal, The Boston Globe, and Inc. Magazine as one of the best places to work.Your Role:This is a unique opportunity to join a high-growth organization and influence the market presence of an emerging category leader. We are seeking a dynamic and experienced product marketer who excels in fast-paced environments and is passionate about making a measurable difference. You will be pivotal in enhancing Allego's market leadership and empowering revenue teams to succeed.As the Senior Manager of Product Marketing, reporting directly to the VP of Marketing, you will take charge of the positioning and go-to-market strategy for the Allego Revenue Enablement Platform. Your responsibilities will include defining target markets, developing buyer personas, and establishing competitive positioning to create clear differentiation and customer value. You will transform product features into engaging messaging, content, and sales tools that facilitate product launches, drive pipeline growth, and support the closure of significant deals.Lead the development of the product narrative by collaborating with Executive Leadership, Sales, Product, and Marketing to deliver compelling positioning and messaging across all channels.Empower revenue teams to excel by providing Sales and Customer Success with insights, tools, and messaging that enhance discussions and boost win rates.Translate product value into market impact by crafting messaging and content for the website, campaigns, launches, webinars, sales materials, and social media that effectively communicates customer value.

At Xometry (NASDAQ: XMTR), we drive innovation in the manufacturing industry by seamlessly connecting visionary thinkers with the manufacturers capable of bringing their ideas to fruition. Our digital marketplace empowers manufacturers with essential resources for growth while simplifying the procurement process for Fortune 1000 companies seeking global manufacturing solutions. We are in search of a dedicated and customer-centric Staff Product Manager to revolutionize the buyer journey within our marketplace. In this pivotal role, you will enhance user experience, boost engagement, and optimize conversion rates across the storefront, focusing on mechanical engineers and procurement managers (buyers) seeking instant quotes for their manufacturing projects. Your contribution will be essential in defining and executing a product vision that ensures a seamless, intuitive, and efficient buyer experience. Collaborating closely with design and engineering teams, you will streamline buyer interactions from discovery through checkout, maximizing value at every stage. This position requires a robust understanding of buyer needs and marketplace dynamics, coupled with strong product management capabilities. You will play a key role in shaping product strategies, fostering cross-functional collaboration, and delivering customer-focused solutions aligned with Xometry’s mission and growth objectives.

Location: Waltham, MA (hybrid) At ERGO NEXT, our mission is to empower entrepreneurs to succeed. As a pioneering technology-driven, full-stack provider of small business insurance, we are transforming the customer experience by taking on the entire value chain. Since our inception in 2016, we have provided tailored and affordable coverage to hundreds of thousands of small business clients across the United States. Backed by industry leaders in both insurance and technology, we continue to expand our reach—and that's where you come in. We are seeking a dynamic and passionate Insurance Product Manager to join our innovative team. This role is highly visible and involves collaboration across various functions, with a primary focus on delivering exceptional insurance products tailored for small businesses in diverse sectors. We recognize that the current market offerings often fall short of meeting small business needs, and we are dedicated to redefining SMB insurance. If you are enthusiastic about analyzing and redesigning pricing strategies, enjoy exploring risk management, and are eager to contribute to initiatives that significantly impact the industry and our customers, we want to hear from you!

Location: Waltham, MA (Hybrid) At ERGO NEXT, our mission is to empower entrepreneurs to thrive. We are pioneering the only technology-driven, full-stack provider of small business insurance in the industry, transforming the customer journey by managing the entire value chain. Our presence extends wherever small businesses operate. Since our inception in 2016, we have assisted hundreds of thousands of small business owners across the U.S. in obtaining fast, tailored, and affordable coverage. Supported by leading figures in the insurance and technology sectors, we continue to expand our reach — and we want you to be a part of this growth. We are seeking a dynamic and innovative Insurance Product Manager to join our Property team. This pivotal role involves collaborating across functions to deliver top-notch products tailored for small businesses across various sectors. We recognize that existing insurance products often fall short of meeting small business needs, and we are determined to lead the reimagining of small business insurance. If you are passionate about understanding and reshaping pricing structures, enjoy analyzing risk, and aspire to work on initiatives that make a significant impact on the industry and our customers, we would love to connect with you! Your Responsibilities: Serve as the subject matter expert for one of our core insurance products, managing coverage, pricing, underwriting, and compliance. Lead initiatives from inception to completion, including problem definition, analysis, execution, rollout, and post-launch performance evaluation. Conduct industry research, competitive analysis, and interviews with small business owners to identify and prioritize critical customer needs. Drive the growth and profitability of the product line by optimizing pricing strategies, shaping insurance offerings, and supporting geographic or segment expansions. Collaborate closely with various teams within NEXT, including Technical Product, Engineering, Data Science, Analytics, Claims, Compliance, Customer Operations, and Legal. Utilize customer insights and product performance data to pinpoint opportunities for enhancing experience, pricing, and underwriting, and implement those improvements. Act as the ambassador for the line of business with both internal stakeholders and external partners (e.g., reinsurers, agents, and strategic partners).

At ZoomInfo, we believe in accelerating careers through innovation and collaboration. We operate with agility, challenge conventional thinking, and empower you to produce exceptional work. You will join a team that values support, challenges norms, and celebrates collective achievements. With the right tools and a culture that nurtures your ambitions, you will not just contribute; you will drive impactful change swiftly.The Opportunity:ZoomInfo has established the most advanced Go-To-Market (GTM) data acquisition infrastructure in the industry. We are now applying that same meticulous approach to the field of context engineering—an emerging discipline that determines whether AI systems yield transformative value or merely incremental enhancements.This role is pivotal in architecting the context layer that powers our AI intelligence across products such as Copilot, GTM Studio, and MarketingOS. You will revolutionize how ZoomInfo's agentic workflows access, compress, and deliver precise information at critical moments. Your work will have a profound impact across the organization: every AI interaction, every intelligent recommendation, and every autonomous agent action will rely on the context infrastructure you develop.As we transition to an AI-first product approach across the company, the context pipelines are still in their infancy, offering a unique opportunity to establish architectural standards and platform practices that will enhance value for multiple product teams in the coming years.What You'll Do:Design Context Acquisition Pipelines: You will create and optimize the methods by which ZoomInfo retrieves, transforms, and delivers context from our semantic data layer, memory systems, and various data sources. Your focus will be on balancing retrieval quality with latency and cost, utilizing hybrid search strategies, intelligent caching, and context compression techniques that maintain information density while adhering to token budgets.Manage the Context Layer Platform: You will build infrastructure that serves multiple product teams—Copilot, GTM Studio, MarketingOS—as internal clients. You will set API standards, enhance developer experiences, and establish integration patterns that expedite feature delivery. You will maintain a delicate balance between providing flexible building blocks and crafting opinionated solutions that integrate best practices.Implement Quality Through Measurement: You will develop evaluation frameworks utilizing RAGAS metrics and custom benchmarks. You will monitor retrieval accuracy, context relevance, hallucination rates, and system performance in production. You will translate quality signals into architectural enhancements, collaborating closely with machine learning engineers.

Xometry (NASDAQ: XMTR) is at the forefront of innovation, bridging visionary thinkers with the manufacturers capable of turning their concepts into reality. Our digital marketplace empowers manufacturers with essential tools for growth while enabling Fortune 1000 companies to leverage global manufacturing capabilities seamlessly.Xometry is searching for a Product Manager II, Post-Order Experience who will take charge of enhancing the customer journey post-order placement. From order confirmation to delivery and support, your contributions will ensure that every customer feels informed, confident, and satisfied throughout their interaction with Xometry.

Xometry (NASDAQ: XMTR) is at the forefront of innovation, transforming industries by linking visionary thinkers with manufacturers capable of turning ideas into reality. Our digital marketplace equips manufacturers with essential resources for business growth while simplifying access to global manufacturing capabilities for Fortune 1000 companies.We are on the lookout for a Senior Principal, Machine Learning & Artificial Intelligence to join our dynamic team. In this pivotal role, you will lead the charge on significant, cross-functional ML/AI initiatives, driving substantial and enduring business impact. Your responsibilities will include steering a comprehensive 18- to 24-month technical roadmap that harmonizes cutting-edge innovation with tangible business value. Collaborating closely with engineering, product, design, manufacturing operations, and business leadership, you will influence partner roadmaps and resource allocation. As a respected subject-matter expert, you will proactively eliminate obstacles for teams and tackle challenges beyond your immediate domain. Your focus will be on identifying and spearheading initiatives that foster revenue growth, reduce costs, enhance efficiency, and establish competitive differentiation—particularly in areas such as 2D/3D part understanding, generative AI, and advanced machine-learning platforms.

Join ZoomInfo as the Director of Product Strategy, where you will lead our product vision and strategy to drive product innovation and customer satisfaction. You will collaborate with cross-functional teams to define and execute product roadmaps, ensuring alignment with business goals and market needs.

Join Xometry, a leading manufacturing marketplace, as a Staff Product Manager focused on enhancing the Post-Order Experience. You will play a pivotal role in shaping the customer journey post-purchase, ensuring seamless service delivery while driving user satisfaction. Collaborate with cross-functional teams to identify improvement areas, implement innovative solutions, and optimize processes for better outcomes.

At Xometry (NASDAQ: XMTR), we are at the forefront of innovation, connecting visionary individuals with manufacturers capable of turning their concepts into reality. Our digital marketplace empowers manufacturers with essential resources to expand their operations while facilitating seamless access for Fortune 1000 companies to global manufacturing capabilities.We are actively seeking a Staff Product Manager to lead the strategic direction of our customer data and marketing technology platforms. In this pivotal role, you will manage the roadmap for capturing, organizing, and activating customer data through our customer data platform (CDP), event collection pipelines, and attribution services. You will serve as a crucial individual contributor, reporting to the Senior Director of Product Management for MarTech, while directly influencing multiple engineering teams and collaborating with various partner teams. As a Staff-level manager, you will also mentor other Product Managers, contributing to the development of our product culture and paving the way for future leadership opportunities. Your influence will be instrumental in enhancing Xometry's ability to acquire, engage, convert, and retain customers—critical objectives for our growth strategy. By ensuring our marketing and customer data systems deliver actionable insights, you will help optimize growth initiatives, improve ROI on marketing investments, and elevate the overall customer experience.

The Principal Customer Success Manager at ServiceNow works directly with clients to help them achieve their goals using ServiceNow’s solutions. This senior role centers on building strong relationships and understanding each customer’s unique needs. Role overview This position focuses on supporting clients throughout their journey with ServiceNow. The Principal Customer Success Manager ensures customers gain the most value from the platform and remain satisfied with their experience. What you will do Engage with clients to understand their business objectives and challenges Guide customers in using ServiceNow products effectively Foster long-term partnerships by providing ongoing support and insights Location This role is based in Waltham.

Join Acorn Product Development, a leading product engineering services firm, dedicated to empowering global companies through innovative engineering solutions. Our collaborative approach enables us to tackle complex engineering challenges, streamline supply chains, and optimize manufacturing and delivery processes. With our extensive expertise and established relationships, we assist clients in launching innovative, reliable, and cost-effective products that make a significant impact in their respective markets.We are currently seeking experienced Mechanical Engineers (contractors) to join our dynamic team in Waltham, MA. Local candidates are preferred.