Software Engineering Intern at Tacit | San Francisco

Join Ironclad, the premier AI contracting platform that revolutionizes the way agreements are handled. Our platform accelerates contract processing, delivers instant insights, and empowers users with unparalleled control. Whether you are buying or selling, Ironclad integrates the entire process into a single intelligent platform, ensuring leaders maintain the visibility required to stay ahead of the curve. That's why leading organizations, including OpenAI, the World Health Organization, and the Associated Press, trust Ironclad to enhance their business operations.Recognized consistently as an industry leader, Ironclad has earned accolades such as being a Leader in both the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management. We are proud to be recognized by Fortune as a Great Place to Work and listed among Fast Company’s Most Innovative Workplaces. Additionally, Ironclad has been featured in Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. We are backed by top-tier investors including Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. To learn more, visit www.ironcladapp.com or follow us on LinkedIn.This position operates in a hybrid model, requiring office attendance at least twice a week on Tuesdays and Thursdays for collaboration. Additional in-office days may be necessary for team or company events.Engineering @ IroncladAs a Software Engineer Intern at Ironclad, you will collaborate with various teams to identify and tackle business challenges by designing, building, and verifying innovative solutions. Your work will contribute to a platform that empowers legal teams to scale their operations effectively, modernizing a profession that has remained largely unchanged for two millennia.You will engage with a modern technology stack that includes TypeScript, React, Node.js, Java, and Docker containers in Kubernetes on Google Cloud Platform. While experience with these specific technologies is advantageous, it is not a requirement. We prioritize a collaborative work environment that fosters inclusivity and allows interns to contribute to real projects while receiving meaningful mentorship, rather than engaging in trivial tasks.About the roleWe are seeking enthusiastic Software Engineer Interns eager to learn and make a tangible impact by shipping real features. You will be integrated into a Product Engineering Team (such as AI, core product, workflow, or platform) and will work on projects that directly influence our customers worldwide.You will partner closely with full-time engineers, product managers, designers, and quality engineers to fully understand user problems and contribute to meaningful solutions.

Ironclad stands at the forefront of the AI contracting revolution, seamlessly converting agreements into valuable assets. Our platform accelerates contract workflows, delivers instant insights, and empowers teams to drive their work forward—all while keeping you in control. Whether you're engaged in buying or selling, Ironclad streamlines the entire process on a singular, intelligent platform, giving leaders the visibility they need to stay ahead. Esteemed organizations such as OpenAI, the World Health Organization, and the Associated Press rely on Ironclad to expedite their operations.Our commitment to excellence has not gone unnoticed; we are regularly lauded as an industry leader, recognized as a Leader in the Forrester Wave and the Gartner Magic Quadrant for Contract Lifecycle Management. Additionally, we have been honored as a Fortune Great Place to Work and listed among Fast Company’s Most Innovative Workplaces. Ironclad has also earned a spot on Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. We are supported by top-tier investors including Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. For further details, visit www.ironcladapp.com or connect with us on LinkedIn.This position is hybrid, requiring in-office attendance at least twice a week on Tuesdays and Thursdays for collaboration and engagement, with potential additional days for team or company events.Engineering at IroncladIn the capacity of Staff Software Engineer, you will collaborate with cross-functional teams in engineering, product, design, and go-to-market efforts to identify impactful challenges and craft, develop, and deploy innovative solutions. You will be instrumental in shaping a platform that enables legal teams and business partners to excel at scale. As we usher a time-honored profession into the digital era, your contributions will define the future of contracting.We invite seasoned engineers from diverse backgrounds who possess robust coding skills and a proven history of delivering thoughtful, reliable products. Join our collaborative, ego-free team that values mutual learning, diverse perspectives, and an inclusive, supportive work environment. If our mission resonates with you and you are eager to help create a product that legal and business teams cherish, we would love to connect!

Ironclad is at the forefront of revolutionizing contract management through artificial intelligence, transforming traditional agreements into dynamic assets. Our platform accelerates contract processes, instantly generates insights, and empowers teams to push projects forward while maintaining control. Whether facilitating purchases or sales, Ironclad consolidates the entire workflow onto a single, intelligent platform, granting leaders the visibility needed to stay ahead. Esteemed organizations, including OpenAI, the World Health Organization, and the Associated Press, rely on Ironclad to enhance their business operations.Recognized consistently as an industry leader, we hold prominent positions in the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management, feature as a Fortune Great Place to Work, and are listed among Fast Company’s Most Innovative Workplaces. Additionally, we've earned spots on Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. Our growth is supported by top-tier investors such as Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. Explore more at www.ironcladapp.com or connect with us on LinkedIn.This is a hybrid role based in our San Francisco office, requiring attendance at least twice a week on Tuesdays and Thursdays for collaboration. Additional in-office days may be necessary for team or company events.Engineering at IroncladAs a Senior Software Engineer, you will engage in cross-functional collaboration to identify business challenges, architect, build, and validate effective solutions. You will develop a platform that enables legal professionals to scale their effectiveness exponentially. At Ironclad, we are modernizing a two thousand-year-old profession, and your contributions will be critical to driving our mission forward.We are looking for seasoned engineers with robust coding skills and a proven history of delivering high-quality products. Our work environment is highly collaborative, promoting a positive and inclusive culture while offering flexibility for remote work. If you're interested in joining us to create a product that legal teams appreciate, we would love to hear from you!

At Ironclad, we are revolutionizing the way organizations manage their contracts through our leading AI contracting platform. Our technology transforms agreements into valuable assets, allowing contracts to move swiftly, insights to surface instantly, and agents to drive work forward—all while you maintain control. Whether buying or selling, Ironclad streamlines the entire process on a single intelligent platform, empowering leaders with the visibility they need to stay ahead of the curve. Esteemed organizations like OpenAI, the World Health Organization, and the Associated Press rely on Ironclad to enhance their business operations.We are consistently recognized as a leader in our field, being named a Leader in the Forrester Wave and the Gartner Magic Quadrant for Contract Lifecycle Management, as well as one of Fortune's Great Places to Work and Fast Company’s Most Innovative Workplaces. Additionally, Ironclad has been featured in Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. Our growth is supported by top-tier investors including Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. Visit us at www.ironcladapp.com or connect with us on LinkedIn.Please note: This is a hybrid role. Attendance in the office is required at least twice a week on Tuesdays and Thursdays for collaboration and connection, with additional in-office days for team or company events.AI Engineering at IroncladWe are accelerating our AI initiatives to reshape how legal teams operate with contracts. We are seeking a skilled AI/ML Engineer to play a critical role in defining the future of legal AI. In this position, you will utilize advanced tools such as HuggingFace, OpenAI APIs, and Rivet to develop state-of-the-art models and intelligent systems that derive structured insights from contracts and enhance product features utilized by top legal teams.You will collaborate closely with product managers and designers to convert user requirements into AI-driven product functionalities. Additionally, you will lead initiatives in model evaluation, iteration, and deployment, ensuring our systems are robust, explainable, and consistently improving. As part of our end-to-end ownership model, you will contribute to the MLOps stack to guarantee our models are scalable, reliable, and high-performing in production.

About Ironclad Ironclad is an AI contracting platform that helps organizations turn agreements into valuable assets. The platform streamlines contract processing, delivers instant insights, and enables proactive workflows, all while giving users control over their processes. Companies such as Rivian, the World Health Organization, and the Associated Press use Ironclad to improve their operations. Ironclad has received recognition in the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management. The company is named a Fortune Great Place to Work and features in Fast Company’s Most Innovative Workplaces. Ironclad also appears in Forbes’ AI 50 and Business Insider’s Companies to Bet Your Career On. Investors include Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. Learn more at www.ironcladapp.com. Role Overview: GTM Engineer, Marketing Ironclad seeks a GTM Engineer, Marketing to join the GTM AI & Systems team in San Francisco. This role partners with Marketing and Strategy to replace manual marketing tasks with intelligent, autonomous systems that drive pipeline, revenue, and company growth. What You Will Do Design and build AI agents to manage marketing workflows, including content creation, campaign execution, audience targeting, and competitive analysis. Develop foundational infrastructure for the marketing team to operate more efficiently and intelligently at scale. Collaborate with cross-functional teams to identify opportunities for automation and smarter processes. Who We’re Looking For Experience with AI tools and a strong interest in applying AI to real-world marketing challenges. Ability to create systems that go beyond configuring existing tools, focusing on scalable, foundational solutions. Comfort working in a collaborative, innovative environment. Location San Francisco

Ironclad stands at the forefront of AI contracting, revolutionizing the way agreements are viewed and managed. Our platform transforms contracts into valuable assets, streamlining processes, delivering real-time insights, and empowering agents to drive progress—all while keeping you in control. Whether facilitating purchases or sales, Ironclad integrates the entire contracting journey within a single intelligent platform, equipping leaders with the visibility necessary to maintain a competitive edge. Consequently, renowned organizations, including OpenAI, the World Health Organization, and the Associated Press, rely on Ironclad to expedite their business operations.Our accolades reflect our industry leadership: recognized as a Leader in the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management, awarded as a Fortune Great Place to Work, and featured as one of Fast Company’s Most Innovative Workplaces. Additionally, Ironclad is proud to be included in Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. We attract top-tier investors, including Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. For further details, please visit www.ironcladapp.com or connect with us on LinkedIn.This is a hybrid position based in our San Francisco office, requiring office attendance three days a week, from Tuesday to Thursday, with potential additional in-office days for team or company events.

Ironclad stands at the forefront of AI contracting solutions, revolutionizing how organizations manage agreements by transforming contracts into valuable assets. Our platform accelerates contract processes, provides instant insights, and empowers agents to progress their work efficiently—all while keeping you in control. Whether you're navigating a purchase or a sale, Ironclad seamlessly integrates the entire contracting process into one intelligent platform. This grants leaders the visibility they need to maintain a competitive edge. That's why renowned organizations, including OpenAI, the World Health Organization, and the Associated Press, rely on Ironclad to propel their business forward.We are consistently recognized as an industry leader, named a Leader in the Forrester Wave and Gartner Magic Quadrant for Contract Lifecycle Management, a Fortune Great Place to Work, and one of Fast Company’s Most Innovative Workplaces. Ironclad has earned spots on Forbes’ AI 50 and Business Insider’s list of Companies to Bet Your Career On. Our growth is backed by top-tier investors such as Accel, Y Combinator, Sequoia, BOND, and Franklin Templeton. For more information, visit www.ironcladapp.com or connect with us on LinkedIn.This is a hybrid position based in our San Francisco office. Attendance is required three days a week from Tuesday to Thursday, with potential additional in-office days for team or company events.Position Overview:We are seeking an outstanding Sales Development Representative (SDR) to contribute to our revenue growth by identifying and qualifying sales opportunities for our sales team!This role is ideal for a motivated and dynamic sales professional at the beginning of their career, eager to help scale a groundbreaking software company and advance their sales expertise. The ideal candidate possesses excellent communication and relationship-building skills, along with the ability to present our offerings compellingly. You will play a key role in delivering our mission and actively engaging with both prospective and existing customers.Objectives of this role:Serve as Ironclad's first point of contact for prospective customers, ensuring an exceptional customer experience in every interaction.Conduct qualification calls with a consultative approach, leveraging in-depth knowledge of our products and services to demonstrate how our solutions can provide value to their businesses.Manage and nurture a pipeline of interested prospects to identify potential opportunities to engage our sales executives.

Sieve is an AI research lab based in San Francisco, focused on large-scale video data. The team builds and maintains infrastructure capable of handling exabyte-scale video, while developing advanced methods for video understanding. Sieve also curates extensive and diverse datasets to support new approaches in video modeling. With video now accounting for a significant portion of internet traffic, the company aims to remove barriers to high-quality training data for fields like creativity, communication, gaming, AR/VR, and robotics. The company recently completed its Series A and is backed by investors including Matrix Partners, Swift Ventures, Y Combinator, and AI Grant. Sieve has worked with leading AI labs and continues to grow, generating $XXM last quarter with a small team of 15. Role overview The Software Engineering Intern at Sieve works across the stack to help build and scale data pipelines that deliver video datasets to clients. This role involves taking full ownership of projects, from sourcing and curating video data to developing machine learning filters, improving system efficiency, and building internal dashboards for quality assurance and delivery. The work directly impacts the timely delivery of high-quality data to customers. What you will do Build and scale data pipelines for delivering video datasets Source and curate video data for a range of applications Develop and refine machine learning filters to enhance data quality Improve system efficiency and reliability Create internal dashboards for quality assurance and delivery tracking Who thrives here This internship is well suited to those who enjoy solving complex technical problems, want to collaborate directly with customers at the forefront of Video AI, and seek meaningful challenges in a high-performance setting.

Netic stands at the forefront of artificial intelligence innovations, empowering essential services that serve as the backbone of the American economy.With an impressive $43 million in funding from renowned investors such as Founders Fund, Greylock, Hanabi, and Dylan Field, who spearheaded our Series B, we've enabled our clients to secure numerous jobs across various service industries in North America. Today, there are businesses that operate solely on an AI-first approach using Netic.Join our dynamic team comprised of relentless builders from top companies like Scale, Databricks, HRT, Meta, along with graduates from prestigious institutions like MIT, Stanford, and Harvard, as we integrate frontier AI into the physical economy, tackling complex challenges with immediate and tangible impacts.At Netic, we create features that empower businesses through AI. As an intern, you will receive dedicated mentorship guiding you through the entire process of supporting customers, launching features, and iterating swiftly.This internship spans 12 weeks and is set to commence in the Summer of 2026 or earlier.

This position offers flexibility for both Remote (US) and in-person roles based in San Francisco, CA.About OliveAt Olive, we’re revolutionizing how companies develop internal tools by enabling them to articulate their needs using natural language.From dynamic sales dashboards to comprehensive trust & safety workflows, internal tools serve as the operational backbone for today’s enterprises. However, creating these tools has traditionally been a slow and tedious process that drains engineering resources.Olive changes the game by transforming simple prompts into fully functional, full-stack internal tools connected to organizational data in mere minutes. Our innovative platform harnesses the power of large language models (LLMs) and advanced code generation techniques to deliver production-ready tools that provide unprecedented insights and operational efficiency.With a successful $2.1M seed funding round from top-tier investors and angel backers, we are on an exciting trajectory to scale our talented team.This role presents an exceptional opportunity to contribute to a challenging yet impactful project, characterized by speed and a strong focus on delivering results. If this sounds exciting to you, we encourage you to apply.The RoleWe are seeking a highly motivated Software Engineering Intern to join our team for the upcoming summer (or fall/spring semester). You will collaborate closely with our founders, engage across the tech stack, and explore the boundaries of robust full-stack software development leveraging AI. This is a paid internship.In this role, you will play a critical part in building on our LLMs and agentic workflows to facilitate code generation, deployment, and tool utilization for enterprise applications. By the end of the internship, you will have developed significant features and functionality that will make a tangible difference.Our team is vibrant, hardworking, and supportive, always prioritizing the customer experience to craft delightful product interactions.

Join our dynamic core engineering team at AfterQuery, where you'll play a pivotal role in developing cutting-edge data infrastructure that will influence the advancement of frontier AI models. This position offers substantial responsibility, allowing you to oversee entire projects from inception to completion—providing immediate visibility of your contributions.Company OverviewAfterQuery is an innovative research lab at the forefront of artificial intelligence, exploring its limits and potential through unique datasets and experiments. Our primary clientele consists of foundation model labs, making us a vital partner for leading AI research labs worldwide.Headquartered in San Francisco, CA, we have garnered support from top-tier investors including Y Combinator, BoxGroup, and former partners from Lightspeed and Index Ventures, as well as prominent figures from Google DeepMind and Meta GenAI.Our founding team is composed of experts from prestigious organizations such as Jane Street, Meta, Citadel Securities, Google, Goldman Sachs, Morgan Stanley, Silver Lake, and leading AI research institutions like Berkeley AI Research (BAIR) and Stanford AI Laboratory (SAIL).Why You Should ApplySignificant Growth Potential: As one of the fastest-growing YC companies, we are poised to set records in our sector.Founding Role: Take charge of our data infrastructure from day one and leave your mark.Exceptional Team: Collaborate with a founding team that boasts experience from top firms like Citadel Securities, Meta, and Google.Key ResponsibilitiesDesign and implement complex data capturing workflows across web (Next.js) and desktop (Python) environments.Architect and enhance data pipelines to handle high throughput and heavy loads efficiently.Work closely with the founding team to shape product strategy and rapidly deploy features.Establish engineering best practices and prepare for future team expansion.Essential QualificationsMust be able to take a gap semester and work on-site in San Francisco.Proficient in JavaScript (Next.js) and Python, with a proven track record of developing full-stack web applications.Experience with serverless architecture and cloud services (GCP/AWS) for intensive data processing.Familiarity with caching (Redis), indexing (Elasticsearch), and message queues (Kafka) is a plus.

Join Exa, a pioneering company dedicated to revolutionizing the AI landscape by developing an advanced search engine from the ground up. Our mission is to create robust infrastructure that efficiently crawls the web, trains cutting-edge embedding models for indexing, and builds high-performance vector databases in Rust for rapid searches. We proudly operate a $5M H200 GPU cluster that powers tens of thousands of machines, demonstrating our commitment to excellence in technology.As a Software Engineering Intern, you will be an integral part of our innovative projects, contributing your skills to a variety of tasks. We value flexibility and encourage you to choose projects that align with your strengths and interests.

About CluelyAt Cluely, we are revolutionizing the way people interact with AI by providing unparalleled advantages in diverse situations. Our innovative desktop assistant leverages screen, microphone, and audio context to deliver insights and suggestions that traditional models fail to offer due to contextual limitations.Our success hinges on two key factors:1) Chatbots are not the ideal interface for multi-modal AI.2) We possess the ability to make anything go viral.About the RoleAs an Engineering Intern at Cluely, you will be immersed in a dynamic environment where our engineering team works six days a week in-person in San Francisco, dedicating 10-12 hours each day. We provide housing within a block of the office to ensure your convenience and focus.Our engineering team comprises both seasoned professionals and ambitious young talent, creating a unique blend of skills and creativity. For more insights into our team, check out this link.Ideal Candidate ProfileYou are among the top engineers globally.You are willing to invest your life in the pursuit of greatness.

Join Condor Software as a Full-Stack Platform EngineerAt Condor, we are revolutionizing the financial infrastructure that supports clinical development. With billions invested annually in discovering and developing new therapies, we strive to connect clinical operations and finance into a cohesive system. By integrating real-time financial intelligence, we empower R&D and finance leaders with the tools they need to make informed, high-stakes decisions.We are an AI-driven, pharma-native infrastructure provider, scaling industry standards in collaboration with top-tier partners. Our platform facilitates prediction, control, and execution in the most complex R&D environments worldwide.The Importance of Your RoleHaving established ourselves as a trusted partner for enterprise teams, we are now focused on the challenging task of scaling our platform to meet increasing demands. As a rapidly growing company, backed by prominent investors like Felicis and 645 Ventures, this is a unique opportunity to contribute to the foundational infrastructure that will redefine how therapies reach patients.Your ResponsibilitiesAs a Full-Stack Platform Engineer, you will be pivotal in building and scaling the core platform that supports the financial intelligence infrastructure relied upon by leading biopharma companies. This role encompasses critical engineering tasks at the intersection of backend systems, cloud infrastructure, and intelligent automation, with a strong emphasis on reliability and scalability.Your primary focus will be on backend architecture, where you'll design and implement services that drive complex financial and operational workflows. You'll be instrumental in shaping data flow, workflow orchestration, and enabling emerging AI-driven capabilities. This role goes beyond simple integration; you'll be crafting robust primitives that support other teams as our product and customer base expand.Working as a core member of a cross-functional product team, you will closely collaborate with product managers, designers, quality engineers, and data specialists to transition features from concept to production. While backend expertise is crucial, you will also engage across the stack to ensure the platform's capabilities are effectively leveraged.

At Mechanize, we are pioneering the development of Reinforcement Learning (RL) environments tailored to train AI models for real-world applications. Our ambition is to facilitate the complete automation of the economy, partnering with leading AI laboratories. Discover more at mechanize.work.As a Software Engineering Intern at Mechanize, you will play a pivotal role in assisting our team to develop these groundbreaking RL environments. If you have a solid command of Python programming and possess a keen intellect, we would love to hear from you.We are currently seeking interns for Winter 2026, Spring 2026, and Summer 2026.No prior experience in machine learning or AI is necessary.Curious about our interview process? Learn more here: https://www.mechanize.work/how-our-interview-process-works/

About OliveAt Olive, we are revolutionizing the way companies build internal tools by enabling them to create sophisticated applications simply by expressing their needs in natural language.Internal tools are crucial for modern organizations, serving as the operational backbone for various functions, from sales dashboards to trust and safety workflows. Currently, the process of developing these tools is cumbersome and time-consuming, often draining engineering resources.Our innovative platform leverages advanced large language models (LLMs) and code generation techniques to assemble fully functional internal tools in mere minutes, seamlessly integrated with company data. This empowers businesses to gain deeper insights and enhance their operational efficiency.Having secured a $2.1M seed funding from esteemed investors and industry pioneers, we are now in an exciting phase of expanding our team.This position offers a unique chance to contribute to a transformative project that demands both skill and speed. If you are passionate about making a significant impact, we encourage you to apply.

SquareTrade delivers protection plans and insurance products to a large customer base. The Engineering team develops and maintains the systems behind these services, ensuring reliability and efficiency. Role overview The Software Engineer position in San Francisco centers on building and enhancing technology that supports SquareTrade’s commitment to customer service. This role involves tackling projects that promote technical growth and hands-on problem-solving. What you will do Contribute to the design, development, and maintenance of systems supporting SquareTrade’s services Work with other engineers to solve technical challenges and improve existing solutions Participate in projects that encourage learning and skill development Location This position is based in San Francisco.

Join our dynamic team at reteam as a Software Engineer in the vibrant city of San Francisco! We are seeking innovative and driven individuals to contribute to our technology initiatives.In this role, you will have the opportunity to work on exciting projects that push the boundaries of software development.

About the Role Stripe is building technology that supports businesses worldwide. The San Francisco engineering team is looking for a Software Engineer to help improve our platform and deliver new features for our customers. What You Will Do Collaborate with other engineers to design and build new systems Enhance existing products and infrastructure Contribute ideas to improve the Stripe platform Location This position is based in San Francisco, California.