Lead Software Engineer - Full Stack Development

About Voyant PhotonicsLocated in the vibrant heart of New York City, Voyant Photonics is pioneering advancements in machine perception through innovative LiDAR technology. Our compact LiDAR devices, small enough to fit in your hand yet powerful enough to deliver precise measurements of range, velocity, and reflectivity, are setting new industry standards. Utilizing state-of-the-art silicon photonic chips, we create sensors that combine exceptional performance with affordability, allowing for seamless integration into various systems.Our mission is to challenge the traditional limitations of oversized, costly, and energy-intensive LiDAR systems, making high-precision sensing technology widely accessible across sectors like robotics, autonomous vehicles, drones, and industrial automation.Position OverviewWe are seeking an enthusiastic and technically adept intern who excels at transforming complex technology into user-friendly documentation and examples. In this role, you will act as a vital link between our cutting-edge LiDAR sensors and the developers integrating them, turning our APIs into a delightful experience for customers.This internship will involve approximately 60-70% of your time dedicated to technical writing and documentation infrastructure, with the remainder spent developing software demos and sample applications to illustrate the capabilities of our sensors. If you have a passion for well-structured documentation and clear code examples, this is the perfect position for you.Timeframe: This internship spans 2-6 months, requiring a minimum commitment of 16 hours per week, with potential for transition to a full-time role.

About N1:N1 is an innovative blockchain network that is hyper-performant and horizontally scalable. Our mission is to facilitate trustless computing at the scale of the internet, revolutionizing the way digital interactions occur.Our talented team comprises individuals with diverse backgrounds from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMWare, and Galaxy Digital. We are proud to be supported by leading investment firms like Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:We are excited to invite a Full-Stack Software Engineer Intern to join our dynamic engineering team. This full-time role will involve the development of robust front-end, server-side, and database applications, with a primary focus on blockchain technology. Ideal candidates should be detail-oriented, innovative, and possess a strong product mindset. You will take ownership of enhancing our web platforms and internal tools, ensuring they are user-friendly, secure, and high-performing.

About Five RingsFive Rings is a pioneering proprietary trading firm dedicated to blending strategy, innovation, and technology to navigate today’s dynamic global markets. With offices located in New York, Boca Raton, London, and Amsterdam, we engage in a diverse array of domestic and international trading activities, spanning both well-established and niche markets. Our team perpetually seeks new opportunities, meticulously evaluates their risks and rewards, and develops innovative strategies and tools to capitalize on them.We foster an open culture that promotes the sharing of knowledge and ideas across all departments of the firm.LINK: Trading Systems Development Intensive ProgramThis program is designed for current sophomores (second-year university students).Where: Five Rings Headquarters, New York City, NYWhen: August 10th - 14th, 2026This Summer 2026, Five Rings will conduct an immersive, 5-day workshop focusing on the design and development of trading systems technologies. Utilizing our advanced C++ and Python development environment on Linux and guided by our experienced software developers, participants will explore a wide spectrum of topics, including network protocol stacks, distributed systems, C++23, and the fundamentals of automated trading system programming. We invite current sophomores to apply for this intensive experience at our Brookfield Place office in New York City.

Join a Transformative CompanyPalantir is at the forefront of creating powerful software designed to enhance data-driven decision-making across various sectors. Our innovative platforms enable partners to tackle critical challenges, from developing life-saving medications and predicting supply chain disruptions to safeguarding missing children and beyond.The OpportunityAs a Forward Deployed Software Engineer Intern (FDSE), you will engage directly with clients to gain a deep understanding of their most pressing challenges, crafting and deploying data-driven solutions. Our clients depend on Palantir’s platforms to manage pivotal operations, often beginning with complex inquiries such as, "How can we assess wildfire risks and optimize our power grid accordingly?" or "What strategies can we implement to ensure our food supply chain is responsive enough to deliver timely humanitarian aid?" In this role, you will leverage your analytical, creative, and technical skills to help organizations translate data into meaningful impact. This internship provides an exceptional opportunity to gain insights and contribute to some of the world's most critical industries and institutions.This internship is hosted in our New York City office and is available for students and recent graduates from Polish universities.Key ResponsibilitiesAs an FDSE Intern, you will have responsibilities akin to those in a startup environment, but with the resources, stability, and guidance of an established tech company. You will collaborate in small teams with minimal oversight, taking ownership of high-impact projects from inception to completion. Your tasks may involve architectural discussions with engineers, processing large datasets, developing custom web applications, engaging with customer executives, or strategizing with your team.FDSE interns are treated as full-time engineers, enjoying significant autonomy and responsibility for real-world projects that have tangible outcomes our clients depend on.

Join a Revolutionary CompanyAt Palantir, we develop the world's foremost software for making data-driven decisions and enhancing operations. Our innovative platforms connect critical data with the individuals who need it, enabling our partners to create life-saving medications, predict supply chain challenges, locate missing persons, and much more.About the PositionPalantir has established itself as a premier destination for the top engineering talents from the Grandes Écoles. We are thrilled to introduce a 12-month fellowship program in New York City, tailored for students and recent graduates of the Grandes Écoles. Selected fellows will collaborate with full-time Palantir employees and will benefit from a specialized program designed to foster skill development and critical thinking. The fellowship is set to commence in October 2026. Candidates may seize this opportunity during their gap year, as a third-year internship, or within a year after graduation.As a Forward Deployed Software Engineer (FDSE), you will engage directly with clients to gain a deep understanding of their most pressing challenges, designing and implementing data-driven solutions. Our partners depend on Palantir’s platforms for their most vital operations. Projects often begin with exploratory questions such as, "How can we assess wildfire risks and enhance power grid efficiency?" or "What strategies can we employ to ensure timely delivery of life-saving assistance through our food supply chain?" In this role, you will leverage your analytical skills, creativity, and technical expertise to help organizations harness their data for genuine global impact. You will have the chance to gain unparalleled insights and contribute to some of the world's most significant industries and institutions.This internship is based in our New York City office and is exclusively available to students and recent graduates of the French Grandes Écoles.Key ResponsibilitiesAs an FDSE Intern, your responsibilities will mirror those of a small startup, enriched by the resources, stability, and mentorship of an established tech company. You will collaborate in small teams with significant autonomy, overseeing the entire execution of high-stakes projects. Your daily tasks may include discussing architectural designs with fellow engineers, managing large-scale data, developing custom web applications, engaging with client executives, or formulating team strategies.FDSE Interns are regarded as integral members of our engineering team, enjoying substantial freedom and accountability in their projects. You will take ownership of tangible outcomes that our customers rely on.

About Us:At Voyant Photonics, located in the vibrant heart of New York City, we are revolutionizing machine perception through innovative LiDAR technology. Our compact devices, designed to fit in the palm of your hand, offer exceptional capabilities in measuring range, velocity, and reflectivity, all with unmatched accuracy. Utilizing state-of-the-art silicon photonic chips that are smaller than your fingertip, we provide sensors that not only deliver groundbreaking performance but are also cost-effective for seamless integration into various systems.Our technology challenges the conventional bulky, pricey, and power-intensive LiDAR solutions, making high-precision sensing widely accessible for applications in robotics, autonomous vehicles, drones, industrial automation, and much more. With Voyant, we empower the next generation of machines to perceive, comprehend, and navigate their environments like never before.Join us in redefining possibilities by transforming cutting-edge research in silicon photonics into real-world products.The Internship Opportunity:We are seeking an enthusiastic and proactive Business Development Representative (BDR) Intern to bolster our go-to-market initiatives. In this role, you will research and identify target customers, generate qualified leads, and assist in converting initial interest into lucrative business opportunities. Your contributions will directly support the Business Development team in accelerating commercial partnerships across global markets.This is a remarkable chance to gain valuable hands-on experience in business development at a cutting-edge chip hardware company. You will be at the forefront of deep tech, facilitating the introduction of innovative sensors and modules that will drive the next generation of robotics and intelligent machines.This internship is more than just a summer position; it’s a career-building step into the realm of deep tech sales, granting you exposure to complex technologies, strategic selling, and the thrill of establishing relationships in an evolving industry that is shaping the future of autonomous systems.Timeframe: This internship spans 2–6 months with a minimum commitment of 16 hours per week, with the potential for conversion to a full-time position.

Join wagmo, a dynamic and innovative pet benefits company, as a Corporate Development & Strategy MBA Intern. In this role, you will collaborate with cross-functional teams to drive strategic initiatives, analyze market trends, and contribute to critical business decisions. You'll gain hands-on experience in corporate strategy, business development, and financial analysis while working closely with seasoned professionals.

About HoneAt Hone, we are pioneering the future of healthcare through our innovative online medical clinic. Our mission is to empower individuals to take charge of their health and enhance their longevity using state-of-the-art scientific advancements. Our team is the core of our success, and we embody our brand values in every project we undertake:Prioritize Patient NeedsExecute with DeterminationCommunicate EffectivelyCollaborate GenerouslyTransform Challenges into OpportunitiesPractice GratitudeAs a fully virtual organization from our inception, Hone remains committed to a remote-first work environment.The Ideal CandidateWe seek a mission-oriented, dynamic multitasker who finds fulfillment in impactful work. Our ideal candidate embraces change, approaches challenges with enthusiasm, and has a proactive mindset. You thrive in a fast-paced, high-growth organization with shifting priorities and excel in both independent and collaborative settings. Clear and open communication is your standard. You possess humble leadership qualities, driving initiatives forward while remaining eager for continuous learning and development. You are passionate about contributing to a team dedicated to promoting longer, healthier lives.The RoleWe are on the lookout for a Senior Software Developer to join our team. Reporting to the Senior Director of Software Development, you will be tasked with developing, enhancing, and maintaining our core applications built with C#/.NET. Your expertise will be instrumental in evolving our software solutions, ensuring they are high-performing, scalable, and reliable.

Why Choose Auctor?At Auctor, we are revolutionizing the world of professional services and software implementation by developing the AI layer that serves as the core of the most proficient solution engineers and onboarding teams. Our cutting-edge technology automates the discovery, documentation, and decision-making processes that fuel over $400 billion in services annually. The potential in this field is enormous and largely untapped.Internship OverviewJoin our dynamic team in New York City for a 10 to 12-week immersive internship, where you will contribute to building the next generation of AI-driven workflow tools. You will collaborate directly with engineers on impactful projects that deliver real value to our customers—no trivial tasks or shadow work here.Your ResponsibilitiesDevelop features within our Next.js and Python framework, spanning from API to UI.Create prototypes and benchmark LLM-powered workflows.Construct retrieval pipelines over complex enterprise datasets.Produce clean, well-tested code and see it go live in production within the same week.Present your work directly to customers and the leadership team.What We SeekStrong foundational programming skills (data structures, algorithms, basic networking).Proficiency in Python and TypeScript (or a strong eagerness to learn).An inquisitive mindset towards LLMs, vector databases, and scalable infrastructure.A proactive approach—focus on building first, refining second, and always delivering.Willingness to work on-site in NYC at least five days a week (in-person collaboration is key).Compensation$55.00 per hourPerks & BenefitsEquity opportunities for returning interns and full-time roles.Enjoy catered lunches and dinners.Housing assistance provided.

At Life Space Digital, we are revolutionizing the out-of-home media industry by installing smart digital screens in bustling office, multifamily, and retail spaces. Our innovative platform provides captivating content and targeted advertising directly to building occupants and visitors, enhancing their experiences in elevators, lobbies, and shopping center concourses.Supported by a seasoned leadership team and ambitious national growth initiatives, we are rapidly expanding in key U.S. markets, delivering speed, accuracy, and lasting value to our partners.Internship OverviewWe are recruiting our inaugural class of Business Development Interns to aid in our expansion into new markets. This is an active opportunity to gain hands-on experience in B2B sales within a fast-developing media and real estate technology firm.You won't just be observing; you will be actively engaging in building a sales pipeline, communicating with decision-makers, and directly contributing to revenue growth. This internship is perfect for ambitious, coachable students eager to pursue careers in sales, media, real estate, or entrepreneurship.Key ResponsibilitiesExecute outbound prospecting efforts towards property owners, operators, and management groups.Assist in lead generation and conduct market research across designated territories.Develop and manage prospect lists utilizing LinkedIn, CRM tools, and industry databases.Support cold outreach campaigns via email and phone.Qualify leads and arrange meetings for senior sales executives.Track activities and performance metrics within the CRM system.Participate in weekly sales training and strategy sessions.Learning OutcomesGrasp B2B sales fundamentals and pipeline management techniques.Develop a keen prospecting strategy and understand territory development.Learn how to effectively sell to commercial real estate and property groups.Familiarize yourself with CRM best practices (preferably with HubSpot).Understand objection handling and effective sales communication techniques.

About AnthropicAt Anthropic, our mission is to design AI systems that are reliable, interpretable, and steerable. We aim to ensure that AI technology is safe and advantageous for both our users and society as a whole. Our rapidly expanding team consists of dedicated researchers, engineers, policy experts, and business leaders collaborating to create beneficial AI systems.About the Role:We are in search of seasoned, product-oriented Software Engineers to take ownership of the backend systems that enhance user experiences across our API, Claude Code, and Claude.ai. In this role, you will independently define complex, multi-month projects within ambiguous problem domains and guide your peers in making technical and product-related decisions. You will align with product management, engineering teams, and research to identify capability gaps and translate cutting-edge model advancements into deployable products. Your architectural decisions will significantly impact the reliability and scalability of systems serving hundreds of thousands of global users, including internal teams, while you remain actively engaged with the code and our models.We are currently hiring for multiple teams. Team assignments will be made post-interview, considering your preferences and experience alongside organizational requirements. This flexible approach allows us to pair talented engineers with backend product initiatives where they can make the most significant impact and experience the most growth:API Core: You will develop and enhance the foundation of the Claude API—systems that deliver Claude's intelligence to developers ranging from startups to large enterprises. You will manage the performance, reliability, and efficiency of our core serving path, ensuring users derive maximum speed and value from our models. Collaboration with inference and safeguards will be key to optimizing the entire stack.API Capabilities: You will empower developers by integrating frontier model capabilities into the Claude API, overseeing core features such as vision, tool usage, and computer interaction. Your responsibilities will include launching new models and delivering the building blocks that enhance Claude's capabilities with each release, working directly with research and inference to productionize future advancements.API Knowledge: Your focus will be on transforming Claude into a true knowledge worker by ensuring the model has timely access to the right information. You will facilitate secure data access for developers, enabling Claude to automatically process and retrieve relevant data as needed.

Position Overview:The Product Management Intern will play a crucial role in assisting the product team with the design, development, and enhancement of digital products across our organization. This internship provides hands-on experience in product discovery, user research, requirements gathering, agile methodologies, and performance assessment.As an intern, you will collaborate with product managers, UX designers, data analysts, and engineering teams to articulate user stories, document requirements, enhance the user experience, and contribute to the iterative development of high-quality product solutions.Key Responsibilities:Assist product managers in maintaining and refining product backlogs, including capturing requirements and organizing user stories.Help translate business needs and user insights into clear requirements, acceptance criteria, and concise documentation.Engage in agile ceremonies (standups, sprint planning, grooming, demos) to ensure clarity on upcoming tasks.Support user research efforts to gather insights and feedback for product enhancement.Contribute to the development of user experience prototypes and wireframes.

About Method SecurityAt Method Security, we are on a mission to revolutionize cybersecurity in the face of rapidly evolving AI-driven threats. Our commitment is to safeguard vital institutions—including government, defense, and significant commercial sectors—from these advanced threats by developing pioneering autonomous defense solutions. We unify expertise in AI, cybersecurity, and software engineering to create products that shift the security paradigm from offense to defense.Our Team and Core ValuesJoining Method Security means becoming part of a distinguished, purpose-driven team that prioritizes innovation, transparency, and excellence. We operate with intent, embracing diverse perspectives while upholding high standards of quality. Our culture is built on trust, efficiency, and mutual respect, fostering an environment where every team member can contribute meaningfully. At Method, you’ll work in small, focused teams capable of addressing complex challenges and producing exceptional outcomes. You will enjoy the autonomy to push projects forward, along with the support needed to navigate challenges and influence the future of cybersecurity.Position OverviewAs a Software Engineer concentrating on Product, you will take on the responsibility of transforming user-facing feature ideas into reality. You will collaborate closely with cross-functional teams to design and develop both frontend interfaces and backend logic that are functional and user-centric, furthering our mission to deliver exceptional defenses. This role requires a self-starter who can manage projects independently, troubleshoot effectively, and engage across the entire technology stack.Key ResponsibilitiesDevelop, test, and implement backend and frontend features while prioritizing code quality and maintainability.Take ownership of projects from inception to delivery, adeptly managing any obstacles that arise.Collaborate with fellow engineers and designers to establish user-friendly workflows and ensure the user experience aligns with our foundational values.Engage in code reviews, contribute to best practices, and strive for continuous improvement in our development processes.Interact directly with end users to confirm that Method is addressing operational needs and solving practical problems.QualificationsDemonstrated experience in web development, with a strong emphasis on proficiency in multiple programming languages.Solid understanding of both frontend and backend technologies.Ability to work in a fast-paced environment and adapt to changing priorities.

Our mission: to eliminate every barrier to mental health.At Spring Health, we’re dedicated to transforming mental healthcare by dismantling every obstacle that hinders individuals from receiving the support they need, precisely when they need it. Our clinically validated technology, Precision Mental Healthcare, empowers us to provide personalized care—be it therapy, coaching, medication, or additional resources—tailored to each person's unique needs.We proudly collaborate with over 450 organizations, ranging from innovative startups to established Fortune 500 companies, serving 10 million individuals. Our esteemed clients include renowned names such as Microsoft, Target, and Delta Airlines, who rely on us to deliver exceptional results for their workforce globally. With our cutting-edge platform, we have achieved a net positive ROI for employers, and we are the sole provider in our sector to receive external validation for delivering net savings to clients.We have garnered investments from leading firms including Generation Investment, Kinnevik, Tiger Global, Northzone, RRE Ventures, among others. With their support and our recent Series E funding, we have reached a valuation of $3.3 billion. Our journey is just beginning—join us as we strive to make mental healthcare accessible for everyone, everywhere.In this role, you will report to the Senior Engineering Manager - Insights Expansion, and your contributions will focus on advancing and expanding our analytics products that showcase the value of our services. You will work collaboratively within a cross-functional product team, developing impactful product features while also mentoring junior engineers to elevate our execution practices.Please note that this is a hybrid role based in New York City, with an expectation to be in the office 2-3 days a week.

About the RoleSigma Computing is revolutionizing the field of business intelligence by making intricate data analysis straightforward and accessible through our high-performance platform designed for the modern data stack. The Compiler Team is integral to this mission, converting user-driven spreadsheet operations into highly optimized SQL queries, which empowers users to perform exploratory analytics seamlessly on cloud data warehouses. As a member of the Compiler Team, you will collaborate with a talented group of engineers focused on developing the core systems and abstractions that enhance Sigma’s user-friendly spreadsheet interface, ensuring speed, reliability, and scalability for all users.What You Will Be DoingAddress core challenges at the intersection of data modeling, query compilation, and large-scale interactive analytics, enabling end-users to query data warehouses effectively without requiring deep technical expertise.Design, build, and maintain advanced compiler infrastructure and intermediate representations that convert spreadsheet operations into optimized query plans.Implement advanced optimization techniques to enhance performance and accuracy across diverse query workloads and data architectures.Contribute to both backend (Rust) and key frontend foundations (TypeScript), evolving crucial abstractions that facilitate end-to-end workflow optimizations and introduce new features.Debug, analyze, and resolve complex issues, ensuring robustness and maintainability within a rapidly evolving product.Work in collaboration with engineers and product stakeholders to review designs and code, promoting technical best practices and architectural decisions across the team and company.

About AtriaAtria is an innovative membership-based preventive healthcare practice offering state-of-the-art primary and specialty care across New York, South Florida, and soon, Los Angeles (2026), alongside global 24/7 telemedicine services.Our diverse team of over 60 esteemed in-house physicians is dedicated to delivering proactive, preventive, and precision-based care tailored for Atria members and their families. Our mission is to enhance both lifespan and healthspan through comprehensive screenings, advanced therapeutics, and personalized interventions aimed at disease prevention and early detection.Every member’s healthcare journey is guided by a dedicated Chief Medical Officer who collaborates with specialists in various fields, including cardiology, neurology, pediatrics, women’s health, endocrinology, integrative health, performance and movement, and nutrition.Through our nonprofit Atria Research Institute and Public Health Institute, we strive to expedite the application of medical innovations and broaden access to preventive care for a wider audience.Atria Health is in search of a Staff Software Engineer who can seamlessly navigate across domain product teams (Clinical Experience, Member Experience, and Care Delivery) as well as our technical infrastructure (web, mobile, backend, cloud).This senior individual contributor role will involve:Offering cross-team technical guidanceLeading intricate, multi-team projects from conception to deploymentCollaborating closely with Product, Design, and Clinical leaders to achieve measurable resultsEngage with product managers and engineering leads to shape feature development, ensure architectural integrity across teams, and oversee the complete execution of complex projects. Your responsibilities will range from defining solutions to establishing robust monitoring and clear analytics in Mixpanel, reflecting a deep commitment to both our building process and our objectives.

Scribd, Inc. brings together products like Scribd®, Slideshare®, Everand™, and Fable, all focused on moving people beyond basic access to information toward deeper understanding and hands-on expertise. Workplace Culture Authenticity and bold thinking shape daily work at Scribd. The team values open debate, welcomes fresh challenges, and keeps customer needs central to decisions. Through the Scribd Flex program, employees enjoy a blend of remote work and intentional in-person gatherings. While most tasks happen remotely, occasional onsite meetings help strengthen collaboration and community ties. Scribd seeks individuals who demonstrate “GRIT”: passion and perseverance in pursuit of long-term goals. This mindset guides how teams set objectives, deliver on commitments, and solve problems together. Developer Tooling Team This group designs and maintains the tools, frameworks, and platforms that support Scribd’s engineers throughout the software development lifecycle. Their work includes updating infrastructure, refining build and deployment processes, and introducing collaborative AI features that enable developers to work with AI agents. These efforts directly improve productivity and enhance the developer experience across the company. Role overview The Staff Software Engineer for the AI Developer Platform plays a key role in shaping how Scribd approaches software development in an AI-first environment. This position sets the technical direction for the agentic engineering platform, guiding hundreds of engineers as they use coding agents to write, review, and deploy code across Scribd’s technology stack. The role also focuses on improving the development environment to enable effective collaboration between AI agents and human engineers. Developing the agentic engineering strategy requires close partnership with senior leadership to ensure alignment with company goals.

Join our dynamic team at Doran Jones as a Senior Microsoft Dynamics CRM Developer & Software Engineer, where you will play a critical role in the design, development, and enhancement of innovative solutions within the Microsoft Dynamics CRM and Dynamics 365 ecosystems. You will engage in the complete solution lifecycle, from gathering requirements and crafting architecture to executing development and deployment, while supporting both traditional CRM systems and cutting-edge cloud platforms.We seek a proactive engineer who excels in building scalable CRM solutions, integrating enterprise systems, and driving the modernization of customer-facing platforms in a vibrant Agile setting. If you're passionate about leveraging technology to enhance customer experiences, we want to hear from you!

About the RoleThis internship offers a hands-on experience that requires a proactive, can-do attitude. You will engage in various areas such as content creation, growth strategies, and product support, often tackling multiple tasks in a single day. While clear objectives will be provided, the path to achieving them will often be left open to your interpretation.Key Responsibilities:Identifying, assessing, and organizing educational content.Developing engaging puzzles, trivia, or challenges for our newsletter.Assisting in experiments related to growth, onboarding, or user engagement.Conducting research, performing data cleanup, and contributing to product development efforts.Taking initiative on various tasks based on the week's priorities.Who Should Apply?This internship is ideal for individuals who:Are passionate about startups and wish to gain insights into their foundational stages.Thrive in ambiguous environments and are adaptable when faced with incomplete instructions.Enjoy rolling up their sleeves and making tangible contributions rather than just discussing ideas.Can swiftly switch between tasks and manage varying responsibilities.Possess a keen interest in learning, education, and knowledge in general.You do not need to be an expert in the field; however, curiosity, reliability, and a proactive approach are essential.