Product Engineer

AnythingAt Anything, we're revolutionizing the entrepreneurial landscape with our AI-driven product engineering solutions. Our innovative AI agent transforms English into fully-functional applications, equipping entrepreneurs with everything they need to thrive online—covering mobile, web, design, AI, backend, infrastructure, and payments. Since our launch o…

Join our forward-thinking team at ReTeam as a Product Engineer, where you will be instrumental in creating, enhancing, and delivering products that make a difference. This role demands strong analytical skills, innovative thinking, and a commitment to excellence in product development. As a valued member of our team, you will collaborate with various stakeholders to identify opportunities, implement effective solutions, and drive ongoing product enhancements.

About Us:At Parafin, our mission is to empower small businesses by providing them with the financial support they need to thrive. Small businesses play a crucial role in our economy, yet they often face challenges in accessing traditional banking services. We develop innovative technology that simplifies access to essential financial tools through the platforms they already use for sales. By partnering with industry leaders like DoorDash, Amazon, Worldpay, and Mindbody, we deliver fast and adaptable funding solutions, spend management, and savings tools to small business users via seamless integrations. Parafin manages the complexities of capital markets, underwriting, servicing, compliance, and customer support on behalf of our partners.Our team of dedicated innovators comes from top-tier organizations such as Stripe, Square, Plaid, Coinbase, and Robinhood, all driven by a shared passion for creating solutions that foster the success of small businesses. Backed by prominent venture capital firms including GIC, Notable Capital, Redpoint Ventures, Ribbit Capital, and Thrive Capital, Parafin is a Series C company with over $194M raised in equity and $340M in debt facilities.Join us in shaping a future where every small business has the financial tools they deserve.About the Position:As a Staff Product Engineer at Parafin, you will be the go-to expert for our implemented products. You will collaborate across design, product, and backend teams to ensure that everything functions seamlessly. Our focus extends beyond specifications; we prioritize understanding the purpose of features, identifying users, and solving their problems. You will take ownership of the entire frontend experience, addressing every transition, edge case, and state change that occurs between user actions and screen outputs.While familiarity with our specific stack is not required, a strong foundation in JavaScript and experience shipping real products using React and TypeScript are essential.Your Responsibilities:Create Scalable, High-Quality User Experiences: Collaborate with design to deliver exceptional UI/UX while also managing critical aspects such as page performance, cross-browser compatibility, and mobile responsiveness.Gain In-Depth Product Knowledge: Develop a strong understanding and perspective on the products we build. Work closely with product and design teams to contribute to the development process, rather than merely executing specifications.Monitor and Enhance Performance: Implement observability for user interactions, core web vitals, and overall perceived performance.Build Frontend and Product Infrastructure: Participate in the development of build systems, developer tools, and deployment pipelines. Advocate for improvements in the developer experience and create internal tools to streamline processes.

Join our dynamic team at kinelo as a Senior Product Engineer. In this role, you will leverage your extensive engineering skills to design and implement innovative product solutions that meet our customers' needs. You will collaborate closely with cross-functional teams to drive product development from concept to launch, ensuring high quality and performance standards.

Anthropic is hiring a Productivity Engineer to help improve how teams work across the company. This position focuses on making operations run more smoothly by designing and refining tools and workflows. Role overview Work closely with colleagues from different departments to identify areas where productivity can be increased. The goal is to create and implement solutions that boost efficiency and support ongoing innovation. What you will do Collaborate with cross-functional teams to understand their needs and challenges Design and implement productivity tools and streamlined processes Continuously optimize workflows to help teams perform at their best Location This role is based in San Francisco, CA or New York City, NY.

Coframe seeks a Product Engineer / Product Manager based in the SF Bay Area. This hybrid position is open to candidates with proven experience building and shipping products, whether as product managers, engineers, designers, or founders. An engineering background is helpful but not required. The person in this role will take ownership of key product metrics and shape both product direction and user experience. Key responsibilities Engage with users daily to collect feedback, review usage recordings, and analyze user funnels Deliver improvements to live products on a rapid timeline Develop first versions of new products and delegate complex features when necessary Create solutions that address both technical and process challenges Ensure product development stays aligned with Coframe’s vision and business goals Support teams across the company in adopting AI development skills Requirements Skill in identifying user problems and evaluating solutions Drive to deliver value efficiently Hands-on experience with AI tools such as Claude Code, Cursor, Devin, or similar Strong sense for product quality and design Ability to communicate clearly with both technical and non-technical audiences Comfort managing several projects and setting priorities Benefits Unlimited paid time off Medical, dental, and vision coverage for employees and families Life insurance and disability benefits 401k plan with Coframe matching Meals provided in the office Gym membership included

ABOUT SPHEREAt Sphere, we believe that transformative advancements in trade infrastructure drive market expansion and reduced transaction costs. Just as containerization revolutionized goods transport and SWIFT transformed money transfers, we are tackling one of the last frontiers: compliance. With over 190 sovereign jurisdictions constantly evolving and interacting, navigating trade rules is a complex challenge.Our cutting-edge AI system, TRAM, intelligently processes global trade law, expertly resolves jurisdictional conflicts, and delivers compliance determinations that outperform human experts. We manage the entire compliance lifecycle—calculation, registration, filing, and remittance—with unmatched speed and reliability.Backed by a16z and Y Combinator. With a $21M Series A funding round and over 30% month-over-month growth, our esteemed clientele includes ElevenLabs, Replit, Deel, Runway, and Lovable.A small, agile team with a global impact. Each team member possesses ownership over a domain that would represent an entire team at a larger company. We operate out of our San Francisco HQ, requiring in-office presence five days a week.The challenge is continuously evolving. As we expand into areas such as input tax, withholding, e-invoicing, and tariffs, the complexity multiplies. Today, we handle tens of millions of transactions, with billions on the horizon.THE ROLECustomer experience (CX) is pivotal at Sphere. Trust is paramount when it comes to managing payments and tax obligations for our clients. Every aspect of the user experience—from modals and buttons to exports—must be executed flawlessly. Would you trust a payment platform filled with bugs and inconsistencies?We are seeking a passionate founding product engineer to enhance our CX, elevate it to new heights, and contribute to the development of innovative features and products aligned with our roadmap.In this role, you will work closely with customers, collaborate with our design and engineering teams, and engage directly with our CEO and Founder to actualize Sphere’s vision of creating a unified global market.WHAT YOU'LL DOWithin your first few weeks:Engage with numerous customers to identify their core pain points and prioritize features that address their needs.Collaborate intensively with design teams to bring those features to fruition.Consistently execute and launch features from start to finish on a daily basis.Participate in customer support as needed to deepen your understanding of our users and their challenges.

About Vapi:Join us in revolutionizing voice technology as the primary interface for human interaction.We provide the most versatile platform for deploying voice agents.In just two years, we have welcomed over 600,000 developers, with an addition of 2,000 new developers daily.Engage with Vapi today!Why This Role is Important:We receive a feature request every 30 minutes.We are on the lookout for a talented Product Engineer to help us deliver even more innovative solutions.Your Responsibilities:First 30 Days: You will familiarize yourself with our voice agent pipeline, a challenging yet rewarding experience.Next 60 Days: You will take ownership of major projects, such as developing WhatsApp voice agents or implementing auto reinforcement learning loops.After 90 Days: You will engage with customers and design lasting APIs that exceed their expectations.Who You Are:You have experience from Series B to F funding rounds.You have a track record of creating impressive products that we admire.Bonus: You have founded your own startup.Why Choose Vapi:Generational Impact: Help build the human interface for all businesses.Ownership Culture: 70% of our team members are former founders.Supportive Team: Our founders, Jordan and Nikhil, bring a warm Canadian spirit to our workplace.Prestigious Investors: Backed by Y Combinator, KP Seed, and Bessemer Series A.What We Offer:Equity and Compensation: We provide a competitive salary and substantial equity ownership.Health Benefits: Comprehensive medical, dental, and vision coverage.Team Culture: We enjoy team bonding activities, including quarterly off-site events.Flexible Time Off: Take the time off you need.Additional Perks: Enjoy catered meals, transportation support, gym memberships, and an annual $10,000 learning and development budget.

Join datacurve as we revolutionize data collection with Shipd, our innovative gamified platform that turns mundane annotation tasks into thrilling challenges. With over 16,000 contributors engaged by the promise of competitive coding, we aim to create an environment where coding becomes not just a job, but a rewarding adventure. We are on the lookout for a Product Engineer to help us evolve Shipd into the ultimate platform for coding bounties, akin to the 'Duolingo for coding' or 'Kaggle but paid'.Your ResponsibilitiesDevelop the Quest Builder system: Design reusable components and multi-step pipelines that streamline quest setup from a week to just a day.Enhance developer experience tools: Expand our customized VS Code fork, browser extension (Moody Blues), and trace viewer to improve observability across coding workflows.Optimize the data flywheel: Innovate features that engage users, promote quality through competition, and support diverse data formats seamlessly.Ensure quality at scale: Refine our evaluation system, incorporate real-time feedback, and empower top contributors to provide reviews.Create engaging experiences: Integrate game mechanics, development tools, and marketplace dynamics to transform lengthy data tasks into rewarding activities.Qualifications for SuccessProven product engineering experience across the entire development lifecycle from frontend to backend and data management.A talent for building scalable systems, creating infrastructure and pipelines that cater to various use cases.Familiarity with developer tools (e.g., IDEs, extensions, SDKs, CLIs) and platforms noted for their telemetry and observability.A genuine interest in game design, marketplaces, or community products with a focus on user motivation and engagement.Strong communication skills and product intuition, enabling you to articulate trade-offs and design with users and teams in mind.Comfort in navigating ambiguity—ready to prototype, iterate quickly, and adapt based on user feedback.Desired AttributesA proactive builder’s mindset: resourceful, driven, and passionate about solving complex problems.

Accordion is seeking a Senior Production Support Engineer to help maintain and improve the reliability of production systems. This position is based in one of several major cities, including Atlanta, Boston, Charlotte, Chicago, Dallas, Los Angeles, New York, or San Francisco. Role overview This role focuses on keeping production environments stable and high-performing. The Senior Production Support Engineer will handle complex technical issues, deliver solutions, and monitor system health to prevent disruptions. What you will do Troubleshoot and resolve technical problems affecting live systems Work with cross-functional teams to address incidents and drive improvements Optimize system performance and reliability through careful analysis and proactive measures Provide ongoing maintenance and support for production applications Collaboration and impact This position works closely with teams across Accordion to ensure clients receive dependable service. A proactive mindset and strong technical skills are key to continuously refining support processes and delivering consistent results.

Join Crusoe Energy as a Principal Production Engineer and play a crucial role in our mission to revolutionize energy production through innovative technology. You will lead projects that optimize production processes and drive efficiency across our operations.

At Netic, we are pioneering the AI revenue engine that powers essential services, forming the backbone of the American economy.With a robust $43 million in funding from prominent investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who led our Series B, we have empowered our clients to secure hundreds of thousands of jobs across various service industries throughout North America. Today, numerous companies are operating entirely through an AI-first approach on the Netic platform.Joining our team means collaborating with passionate builders from renowned organizations such as Scale, Databricks, HRT, Meta, and prominent academic institutions like MIT, Stanford, and Harvard. Together, we are advancing frontier AI technologies within the physical economy, where challenges are complex, data is intricate, and the impact is both immediate and significant.As a Software Engineer on our Product team, you will develop innovative features that seamlessly integrate AI into real-world business applications. This role emphasizes technical excellence and a deep understanding of customer needs, enabling us to create products that simplify complex AI technologies and deliver immediate value to essential service industries.

Join our dynamic team at fal as a Product Engineer, where your engineering expertise will shine in creating and deploying exceptional user experiences. You will leverage your strong knowledge of both backend and frontend technologies to take ownership of product features from conception through to launch. Your skills in developing robust APIs, managing databases, and designing interactive user interfaces will be critical as you focus on delivering high-quality, scalable, and maintainable products.

Join Us as a Product EngineerAt Variance, we are at the forefront of teaching machines to navigate complex decision-making processes at scale. Our mission involves developing AI agents designed to combat fraud, scams, and abuse with high precision.Based in San Francisco, our small but highly skilled team is dedicated to solving challenges that impact billions of events and entities. We proudly serve a diverse clientele, including Fortune 500 companies and global marketplaces, as we strive to save millions of hours of human labor. If you excel in environments that demand ownership, speed, and collaboration with founders, you'll thrive here.Who You Are:You possess a deep passion for craftsmanship and have clear opinions about your work.You are familiar with our technology stack: React/Next.js, TypeScript, MySQL, and ClickHouse. However, we prioritize foundational skills over specific technologies.You thrive on owning features from backend development to a polished user interface and deployment.You are excited by the opportunity to create AI interfaces that have the potential to save lives.Your Responsibilities:Deliver end-to-end features with iteration cycles that are measured in hours, rather than months.Expand our product into new sectors and workflows through swift pilots and live demonstrations.Collaborate directly with the founders on large-scale, pioneering challenges.Design systems where AI algorithms make real-time decisions, ensuring a balance between accuracy, speed, and user confidence.Our Culture:We foster a culture of ownership, urgency, and craftsmanship. We encourage spirited discussions, innovative ideas, and creating work we take pride in. Our team operates fully in-person in San Francisco.What We Offer:A competitive salary accompanied by meaningful equity.Comprehensive healthcare options, including platinum-level medical, dental, and vision coverage.Unlimited paid time off (PTO), sick leave, and parental leave.Monthly reimbursement of up to $100 for personal health and wellness expenses.401(k) retirement plan.

About CartesiaAt Cartesia, our vision is to create the future of AI—an intelligent, interactive system that seamlessly integrates into your daily life. Today, even the most advanced models struggle to process and analyze vast streams of audio, video, and text data—1 billion text tokens, 10 billion audio tokens, and 1 trillion video tokens—especially on-device.We are at the forefront of developing the model architectures that will make these capabilities a reality. Our founding team, who met as PhD candidates at the Stanford AI Lab, pioneered State Space Models (SSMs), a novel approach for training efficient, large-scale foundational models. Our diverse team combines deep expertise in model innovation and systems engineering with a design-oriented product engineering team to create and deliver cutting-edge models and experiences.With support from leading investors such as Index Ventures, Lightspeed Venture Partners, Factory, Conviction, A Star, General Catalyst, SV Angel, Databricks, and others, along with guidance from an exceptional group of advisors and over 90 angel investors across various industries, we are well-positioned to redefine the AI landscape.About the RoleWe are seeking a passionate Product Software Engineer to join our team, focusing on building and scaling the platform infrastructure that supports Cartesia's voice AI products. In this role, you will develop composable platform components that enhance feature delivery across our API and conversational AI systems.Your ImpactDevelop and scale product platform components to facilitate Cartesia's growth.Take ownership of critical product infrastructure end-to-end, including real-time systems.Collaborate with product teams to identify common needs and create platform primitives that enhance their development speed.What You BringA minimum of 3 years of experience as a backend or platform engineer with a focus on building scalable systems.A customer-centric mindset that prioritizes outcomes over technical specifications.A proactive approach to owning your work, tackling ambiguous challenges, and achieving results.Strong decision-making skills regarding when to expedite development and when to invest in scalability.Familiarity with our technology stack: TypeScript for frontend, Python and Go for backend. Expertise in all three is not required, but a willingness to learn is essential.Nice-to-HavesExperience with AI or machine learning systems.Background in working with real-time data processing.

Why Choose Numeric?Accounting is the backbone of every business. Unfortunately, many software solutions in this field were designed in the early 2000s — cumbersome, slow, and outdated in terms of AI capabilities. Today, accountants are grappling with an escalating, unresolved data challenge stemming from complexity, data overload, and fragmented systems — leaving them without adequate tools for resolution. These challenges are significant, complex, and increasingly urgent. But they are solvable.Welcome to Numeric — the future of accounting and finance. We are developing a platform that embodies the vision of real-time, comprehensive, and reliable data and insights for organizations to enhance their decision-making and execution.Our mission addresses the foundational issues necessary for automating data ingestion, transformation, matching, projection, and reporting, creating a seamless graph of financial data. By integrating data, automation, workflows, and AI-driven experiences, we empower accounting teams to maintain a continuous view of their company’s financial health and activities.With strong product-market fit and a growing customer base that includes leaders such as Anthropic, Brex, OpenAI, Plaid, and Wealthfront, we are backed by top-tier investors including IVP, Menlo Ventures, Founders Fund, and 8VC, alongside founders and executives from Ramp, Segment, and other pioneering firms.About the RoleAs a Product Software Engineer at Numeric, you will take charge of the entire product lifecycle, directly influencing our product strategy and direction. We seek innovative, dynamic builders with robust foundational skills and a commitment to enhancing user experiences and addressing key challenges.Potential ResponsibilitiesYou may work on our advanced data platform, which includes:Ingestion processes, metadata management, lineage tracking, and transformation for thorough analysis and insights while ensuring source traceability.Our reporting tools, enabling end-users to create flexible, highly-structured financial projections that can be saved as reports and seamlessly integrated into their workflows. These reports are both traceable and composable, allowing users to delve into transaction-level details and beyond.Monitoring systems, empowering clients to identify and rectify data issues at the source and prevent errors...

Be a part of the groundbreaking journey to develop Gram, our latest product, and influence the future of agentic development.About SpeakeasyInitially focused on creating robust toolchains for high-quality SDKs for APIs, we have evolved to offer agentic tools and MCPs with the introduction of Gram. Our rapid growth has been fueled by the demand from enterprise clients such as LaunchDarkly, Fivetran, and Verizon, alongside agile startups innovating and deploying MCP tools and applications on the Gram platform. To meet this demand, we are expanding our team rapidly.Our development process is transparent—check out our GitHub repository. We collaborate closely with a diverse range of clients, from small startups to large Fortune 500 companies.About GramGram empowers both enterprises and dynamic startups to securely and efficiently connect their data to AI. The platform simplifies the process of deploying code and integrating APIs to create agentic tools, combining them into cohesive toolsets, which can be delivered as hosted MCPs. These specialized MCP servers drive our clients' agents, coding agents, and chat clients.About the RoleThis is an exceptional opportunity to join a passionate team dedicated to enhancing the developer experience, making it an intuitive craft that tackles complex challenges. You will engage with an early-stage product alongside a proven team, collaborating daily with founders and customers. While experience in architecting and scaling modern web infrastructure, designing user-friendly developer interfaces, or developing web services in Golang is valuable, we prioritize finding versatile generalists and product engineers who are enthusiastic about enhancing developer experiences.You are an ideal candidate if...You are eager to join a talented team composed of former founders and experts in various developer tools, languages, and infrastructure (with over a quarter of the team fitting this description).You thrive on ownership throughout the entire development lifecycle: building, shipping, supporting, and assessing impact.You have a proven track record of significantly enhancing customer experiences and contributing to company growth.You possess an exceptional capacity for learning, adapting to new frameworks, and navigating the full technology stack from backend to frontend.

Join Parafin as a Staff Product Engineer and play a pivotal role in designing and building innovative products that make a difference. You will collaborate with cross-functional teams to deliver high-quality solutions that exceed customer expectations.

At Composio, we are revolutionizing the way agents interact with the essential tools they use daily, including Github, Gmail, Notion, Salesforce, and over 500 others. As a dynamic and agile team, we tackle challenges ranging from authentication to orchestration, creating a powerful connection between your agents and their tools. Recently, we secured a $29 million Series A funding round led by Lightspeed, with notable angel investors such as Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of HubSpot), and Gokul Rajaram. Just this year, we've tripled our annual recurring revenue (ARR), and our clientele includes esteemed names from Y Combinator, AWS, Glean, Zoom, and more.Why are we looking for an Enterprise Product Engineering Lead?The enterprise landscape is being transformed by agents, and many companies have yet to realize this shift. Currently, our enterprise operations rely heavily on the founders' time. Every customer interaction, design document, and scope negotiation is funneled through our co-founders and the Head of Engineering. We seek an individual who can take full ownership of the enterprise product from start to finish—not merely acting as an intermediary between customers and engineering, but as the decision-maker who defines what gets built, defends technical choices, and ensures successful deployment. This person will help us expand our enterprise client base from 5 to 50 and drive us toward achieving $20 million in enterprise revenue.What will you be responsible for?- Oversee all enterprise customer interactions—conduct weekly syncs, provide pre-sales technical validation, and support POC initiatives while making real-time product decisions.- Engage deeply with the codebase to write design specifications, assess build complexity, and identify architecturally unsound customer requests.- Prioritize and triage enterprise requests against the backlog, weigh trade-offs, and commit to defensible timelines.- Communicate effectively with customers when their requests are impractical, ensuring trust is built through transparency.- Set high standards for enterprise quality: while features may be released at a different pace than product-led growth (PLG), nothing should be shipped in a broken state.- Develop the enterprise playbook, establish escalation paths, and create processes that are currently lacking.- Collaborate daily with the Head of Revenue, Head of Engineering, and the solutions team to translate customer pain points into engineering priorities.“Key qualifications” for candidates:- Proven experience in shipping products and the capability to engage in architectural discussions that earn the respect of engineering teams.- Demonstrated ability to make difficult product decisions under pressure, such as discontinuing a feature mid-development or advising a key customer against a flawed approach.- A level of confidence that instills trust among enterprise buyers and senior engineers alike.- A systematic thinking approach that prioritizes trade-offs over mere feature requests.- Experience in initiating projects, driving sales, or managing a P&L.- Background in developer tools or infrastructure.- Sufficient technical knowledge to navigate codebases, estimate timelines, and present credible technical opinions.