Full Stack Developer Intern - React JS

About FreeplayAt Freeplay, we empower software teams to seamlessly launch exceptional AI products. Our platform enables product development teams to effectively test, assess, monitor, and enhance AI in real-world applications. From dynamic startups to Fortune 100 enterprises, our customers leverage Freeplay to refine LLM features, chatbots, and intelligent agents.The Need for FreeplayWhile interacting with ChatGPT may appear straightforward, creating production-grade software utilizing LLMs presents considerable challenges, particularly for teams lacking prior AI expertise. These teams are eager to accelerate their learning journey and prioritize delivering tangible value to their customers.Freeplay simplifies this journey, enabling teams to swiftly and confidently develop and refine production-ready AI features. Our clients appreciate how we help them save time, sidestep costly errors, enhance their offerings, and empower every team member—engineers and non-engineers alike—to collaborate and deliver faster.Discover more about our initiatives on our blog.Your RoleDevelop and Deliver Software: Architect, create, and sustain foundational infrastructure and features across our comprehensive stack—from user-friendly front-end interfaces to robust backend systems that drive our AI testing and evaluation platform.Influence Technical Strategy: Assess and implement technologies, tools, and best practices while profoundly shaping our technical architecture. Participate in strategic decision-making regarding the construction of reliable systems interfacing with AI components.Prioritize User Experience: Keep the end-user at the forefront of all development stages, ensuring our platform is both intuitive and powerful for teams working with AI, while providing a seamless experience across all functionalities.Collaborate with the Founding Team: Partner closely with our founding team to brainstorm, prototype, and deliver innovative solutions that meet user needs and generate value for our customers.Cultivate Engineering Culture: Establish rigorous testing protocols, code reviews, and continuous integration practices to uphold superior quality in production-ready code while minimizing technical debt.

The OpportunityWe are seeking a talented and experienced Developer Relations Engineer to spearhead initiatives aimed at enhancing the visibility of Freeplay within the AI engineering and product management communities. In this role, you will be instrumental in creating engaging content, fostering community engagement through both online and in-person events, shaping our brand narrative, and executing lead generation strategies directed at technical audiences.This is a fantastic opportunity to join a rapidly expanding AI startup that is at the forefront of AI product development, working with some of the largest and most innovative companies worldwide. You will dive deep into the intricacies of agent building, evaluation creation, prompt optimization, and model enhancement, ultimately contributing to the development of AI products that deliver exceptional customer satisfaction.About FreeplayFreeplay is the comprehensive platform that empowers software teams to develop outstanding AI products. We equip product development teams with tools to test, evaluate, monitor, and optimize AI in production. Our clients range from emerging startups to Fortune 100 companies, all utilizing Freeplay to enhance their LLM features, chatbots, and agents.Your MissionYou will be responsible for crafting the messaging and content that will establish and expand Freeplay's developer community and stimulate growth.Foster and amplify Freeplay’s brand presence within the AI engineering and product management sectors through thought leadership, technical writing, and community interaction. Become a prominent public representative for Freeplay over time.Direct the creation and strategic vision for high-quality technical materials, including sample code, applications, documentation, blogs, videos, webinars, and tutorials.Continuously refine our narrative to highlight what makes Freeplay distinct and impactful.Ensure that all content is engaging, clear, and effectively illustrates Freeplay’s value proposition to technical audiences.Establish a consistent rhythm of content marketing and nurturing campaigns that effectively blend enterprise messaging with practical, actionable solutions for AI engineers and product managers.Collaborate closely with Product Management, Engineering, and Sales to maintain aligned and powerful messaging.

Join Our Team as a Site Reliability Engineer!We are seeking a skilled Site Reliability Engineer (SRE) to take charge of the reliability of the Freeplay platform and ensure the success of our most sophisticated enterprise clients. In this pivotal role, you will connect core infrastructure engineering with critical customer deployments. You won't just be managing our internal SaaS environment; rather, you will become the technical authority guiding Fortune 100 engineering teams as they integrate Freeplay into their private cloud environments.This is an exceptional opportunity to be part of a rapidly expanding startup, gaining insight into how AI products are developed at some of the largest and most innovative companies in the world. You will actively engage with customers, exploring advanced AI architectures while guaranteeing our platform operates seamlessly within their diverse and complex ecosystems.About FreeplayFreeplay is the comprehensive platform that empowers software teams to launch outstanding AI products. We enable product development teams to test, evaluate, monitor, and optimize AI in production environments. Our clients leverage Freeplay to enhance LLM features, develop chatbots, and create intelligent agents. Currently, we serve a wide range of leading software companies, from emerging startups to Fortune 100 enterprises.Your MissionAs a Site Reliability Engineer, your primary goal will be to build and maintain the infrastructure that powers Freeplay, ensuring successful deployments for our enterprise customers.Collaborate with Enterprise Clients: Serve as a vital technical resource for our

Who We Are at FreeplayFreeplay is a cutting-edge platform designed to empower software teams in launching exceptional AI products. We provide product development teams with the essential tools to test, evaluate, monitor, and optimize AI in real-world applications. Our clients range from innovative startups to Fortune 100 companies, utilizing Freeplay to enhance their LLM features, chatbots, and AI agents.Our MissionIn a world where simple interactions with AI like ChatGPT are commonplace, the challenge lies in developing robust production software built around LLMs, particularly for teams lacking prior AI experience. Our goal at Freeplay is to ease this transition, allowing teams to navigate the complexities of AI development swiftly and effectively, ultimately benefiting their customers.Our platform simplifies the process of creating and refining production-ready AI features, enabling teams to save time, avoid costly pitfalls, and deliver superior products that empower both engineers and non-engineers alike to collaborate and innovate faster.Discover more about our journey on our blog.Your RoleCustomer Engagement: Serve as the primary liaison between Freeplay and our clients. Conduct workshops, prototype innovative solutions, and guide them through the implementation process to maximize their Freeplay experience.Technical Leadership: Utilize your profound knowledge of the generative AI landscape, particularly around testing, evaluation, and optimization strategies for LLMs and RAG systems, to demonstrate the best applications of Freeplay.Problem Solving: Collaborate with clients to understand their unique challenges and provide tailored solutions using Freeplay combined with industry best practices.Documentation and Knowledge Sharing: Take ownership of our client-facing documentation, ensuring it is clear, comprehensive, up-to-date, and valuable. Disseminate your expertise to both clients and internal teams.Customer Support: Deliver exceptional technical support, addressing complex issues and ensuring clients maximize their use of our platform.Product Feedback Loop: Work closely with our product team to relay insights from customer interactions, influencing the continuous enhancement of our platform based on real-world applications.

Location: Onsite in Boulder, COAbout UsAt Foresight Diagnostics, we are pioneering advancements in non-invasive cancer detection through our cutting-edge liquid biopsy technologies that utilize highly sensitive, cell-free DNA. Our proprietary methods, originally conceived at Stanford University, empower earlier detection of smaller tumors, facilitating personalized and effective cancer treatment strategies.Our operations blend molecular biology, bioinformatics, and next-generation sequencing (NGS), transforming scientific innovation into impactful clinical solutions. As we expand, we've established robust laboratory operations and effective cross-functional collaboration, ensuring clinical development and long-term commercial readiness.Foresight Diagnostics fosters a collaborative and accountable work culture where quality, precision, and continuous improvement are integral to our mission. Team members enjoy the chance to contribute to meaningful programs, collaborate with seasoned scientific and operational leaders, and advance professionally within a well-resourced organization dedicated to its mission.Position OverviewWe are looking for a Senior Full Stack Software Engineer who possesses strong Python expertise, frontend skills (preferably in React), and backend experience with relational databases (PostgreSQL is preferred). In this role, you will play a vital part in designing, developing, and maintaining full-stack software solutions that support our research, product development, and clinical testing operations. A solid understanding of NGS laboratory workflows and data management is highly advantageous.This position is onsite in Boulder, CO and does not offer remote or hybrid options. Candidates must either be local to Boulder or willing to relocate before commencing work.Key ResponsibilitiesDesign and develop full-stack applications utilizing React for the frontend and Python for the backend, with an emphasis on database management.Collaborate closely with scientists, laboratory personnel, and business stakeholders to transform complex requirements into practical, production-ready software solutions.Participate in architectural decisions, system design reviews, and sprint planning as part of a collaborative software development team.Ensure that software meets high standards for quality, reliability, and performance.

Location: Onsite in Boulder, CO. This position requires working at the Boulder office; remote or hybrid work is not available. Candidates should already be local or plan to relocate before starting. Role overview Foresight Diagnostics seeks a Senior Full Stack Software Engineer with strong Python skills and frontend experience in React. The role centers on designing, developing, and maintaining software that supports research, product development, and clinical testing. Experience with relational databases, especially PostgreSQL, is preferred. Familiarity with next-generation sequencing (NGS) laboratory workflows and data management is a plus. What you will do Design and build full-stack applications using React for the frontend and Python for the backend, with an emphasis on relational database storage. Work closely with scientists, lab staff, and business stakeholders to turn complex requirements into practical, production-ready software. Contribute to architectural decisions, participate in system design reviews, and join sprint planning sessions as part of a collaborative software development team. Maintain high standards for software quality and performance. Requirements Expertise in Python development. Frontend proficiency with React. Experience working with relational databases; PostgreSQL preferred. Ability to work onsite in Boulder, CO. Understanding of NGS laboratory workflows and data management is advantageous.

Join our dynamic team at Anduril Industries as a Senior Mechanical Engineer in beautiful Boulder, Colorado. We are at the forefront of defense technology, developing innovative solutions to enhance national security. In this role, you will leverage your extensive engineering expertise to design, test, and implement cutting-edge mechanical systems.

Join Otter LLC as a Full Stack Developer, where you will play a pivotal role in crafting innovative web applications. You will leverage your expertise in both front-end and back-end development to deliver robust, scalable solutions that enhance user experience. Collaborate with cross-functional teams to design, develop, and maintain high-quality software that meets our clients' needs.

About Atom Computing Atom Computing builds quantum computers using optically trapped neutral atoms. The team includes scientists, engineers, and business professionals working to advance quantum technology and expand what computation can achieve. Role Overview The Software Engineering Manager will lead the development of core technologies for Atom Computing's quantum platform. This manager will guide a team of engineers responsible for building the software stack that enables researchers and clients to program, manage, and scale quantum systems. Key Responsibilities Lead and mentor a team of software engineers. Drive the development of external APIs, cloud integrations, and researcher workflows. Shape the technical roadmap for the commercialization of Atom Computing’s quantum solutions. Oversee greenfield software projects at the intersection of distributed systems, cloud infrastructure, high-performance computing, and quantum technologies. Who Should Apply Experienced software architects with a track record in designing and building complex systems. Leaders who can inspire and direct engineering teams. Individuals curious about new technology domains, even without prior quantum computing experience. Location Requirement This role is based in Boulder, CO. Due to hardware needs and on-site collaboration, the position requires at least three days per week in the Boulder office.

The Trade Desk is looking for a Senior Full Stack Software Engineer to join the Omnichannel division. This position centers on designing and building software that enhances user experiences across a range of platforms. Projects involve both web applications and integrated advertising technology. Key responsibilities Collaborate with engineering, product, and design teams to deliver applications for the omnichannel platform Develop and maintain software that integrates with The Trade Desk’s advertising technology stack Work on both front-end and back-end systems to support seamless user interactions Locations This role is open in Bellevue, Boston, Boulder, Chicago, Denver, Irvine, Los Angeles, New York, San Francisco, San Jose, Seattle, and Ventura.

Join the innovative team at watchmakergenomics as an Accountant, where you will play a crucial role in managing financial records and ensuring compliance with regulations. This position offers an exciting opportunity to contribute to our growth and success in the dynamic field of genomics.

About the Role Speechify is hiring an iOS Core Product Software Engineer in Boulder, CO. This role focuses on building and improving iOS applications that help people read and listen more easily. The team values creativity and collaboration, and engineers here contribute directly to features that make a real difference for users. What You Will Do Develop and refine core features for Speechify’s iOS apps Work closely with other engineers and product team members Help shape the direction of new and existing app capabilities Location This position is based in Boulder, Colorado.

Why Join Mercer Advisors?For four decades, Mercer Advisors has been dedicated to enhancing and simplifying the financial lives of families. Our unique approach integrates financial planning, investment management, tax strategies, estate planning, insurance, and more, all managed by a cohesive team of experts. Currently, we proudly serve over 31,300 families across more than 90 U.S. cities. Recognized as the #1 RIA Firm in the nation by Barron’s, we are an independent fiduciary committed to acting in the best interests of our clients.At Mercer Advisors, we foster a distinct work environment that differentiates us in the financial sector. Our team comprises 50% women, reflecting our commitment to diversity and inclusion. We attract top talent nationwide, offering flexible work arrangements to build the best team possible.Join us in making a significant impact on the financial futures of families across the nation.* Mercer Advisors was ranked #1 for RIA firms managing up to $70 billion in assets, based on a blend of metrics such as size, growth, service quality, and technology. Our participation in this ranking involved a fee to Barron’s for marketing purposes. More information about the ranking criteria can be found here. Job Summary:The Wealth Advisor plays a crucial role in enhancing relationships with an existing client base and organically expanding their practice through referrals. By leveraging our in-house team of specialists, you will help clients achieve their financial aspirations.Unlike other firms, Mercer has a dedicated Sales team, allowing our advisors to concentrate solely on client needs. Our advisors are fiduciaries who take pride in utilizing their expertise in financial planning and investments, along with exceptional relationship skills, to assess client needs and propose tailored solutions. They are supported by a sophisticated technology platform and a dedicated team of experts in portfolio management, financial planning, tax, estate planning, and more.

SciTec, a subsidiary of Firefly Aerospace, develops technologies that strengthen U.S. National Security and Defense. For more than 45 years, the team has built advanced remote sensing algorithms, tools, and techniques to support missions in missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability. About the Role The Senior Cybersecurity Engineer will join SciTec’s Boulder, Colorado office. This position focuses on protecting critical systems and contributing to projects that matter for national defense. The work supports a range of programs that require strong cybersecurity expertise. Eligibility Requirement Important Notice: U.S. citizenship is required for all SciTec employees due to government contract obligations. Applications from non-citizens cannot be considered.

Founded in 2014 by former philosophy professor David Barnett, PopSockets is a dynamic global company dedicated to enhancing digital lifestyles through innovative and expressive products. With nearly 300 million iconic phone grips sold across 75 countries, our product range continues to expand, featuring phone cases, wallets, mounts, batteries, and chargers.Our mission revolves around empowering self-expression, improving mobile functionality, and fostering authentic human connections. We envision an Eternal Positivity Machine that ignites joy, creativity, and meaningful relationships. This vision is realized through our commitment to the highest quality in materials, packaging, logistics, and design, while ensuring ethical, responsible, and transparent practices throughout our supply chain.In 2021, we were recognized by Fast Company as one of the World's Most Innovative Companies.At PopSockets, we believe that our products aren't just functional; they embody personality. We are seeking a talented Creative Copywriter who can turn product benefits into clever narratives, transform campaigns into memorable moments, and elevate packaging to engaging content.In the role of Creative Copywriter, you will be the creative voice that resonates across all platforms—digital, physical, and beyond. Your responsibilities will encompass crafting compelling copy for emails, social media, paid media, product packaging, retail displays, video scripts, and more, while ensuring that each piece reflects the wit, clarity, and unique essence of PopSockets. This mid-level position requires 3–5 years of experience in branding or agency work, and presents an opportunity for you to take ownership and become a vital creative force within our brand.You will work closely with the Brand Creative team, collaborating with designers, marketers, and product leaders to ensure that every message conveys the energy, humor, and warmth that defines who we are.

If you are a passionate and dedicated personal trainer eager to transform lives through fitness, we want you on our team! At Svetness, we are looking for outstanding trainers to provide personalized fitness coaching in the comfort of our clients' homes. Become part of a supportive community that values your expertise, offers you flexibility, and promotes your professional development.Join Our Team of Elite In-Home Personal Trainers – Empower Lives Through Fitness!Are you a certified personal trainer who is enthusiastic about making a meaningful difference? At Svetness, we bring clients directly to you, allowing you to concentrate on what you do best—helping individuals reach their fitness aspirations.Why Train with Svetness? Flexible Scheduling – Choose your own hours and select clients that align with your interests. No Non-Compete – Train where and when you prefer; your career is in your hands. Competitive Pay – Earn between $35 and $45 per hour based on your experience and client retention. Bonuses & Rewards – Receive retention bonuses and incentives for client and trainer referrals. Liability Insurance – Rest easy knowing you are covered under our General Liability policy. Dedicated Support Team – Our concierge team manages scheduling and client requests, letting you focus on training. Ongoing Education – Access free webinars, resources, and management support to enhance your skills. Exclusive Discounts – Enjoy 30% off fitness equipment, plus perks on meal preparation, supplements, and more. No Sales Required – We provide a steady stream of clients—no marketing needed. Svetness App – Seamlessly manage your schedule, track progress, and log sessions.

sweetgreen is hiring a Restaurant Manager for its Boulder, CO location. This role centers on leading daily restaurant operations while supporting a team that values healthy food and excellent service. What you will do Oversee and guide staff to deliver a welcoming guest experience Maintain food quality and uphold operational standards Drive sales through effective team leadership and attention to service Who we’re looking for Experience managing teams in a restaurant or hospitality setting Strong interest in healthy, sustainable food Ability to foster a positive, collaborative workplace This position offers the chance to shape the guest experience and help build a supportive team culture at sweetgreen in Boulder.

Join our dynamic team at Prosidian Consulting as an ITSM Test Engineer in Boulder, CO. In this role, you will be responsible for testing IT Service Management solutions, ensuring that they meet the highest standards of performance and reliability. Collaborate with cross-functional teams to identify and resolve issues, and contribute to continuous improvement efforts.

Join our dynamic team at Otter LLC as a Senior Software Engineer. In this key role, you will leverage your extensive expertise in software development to lead innovative projects, mentor junior engineers, and drive technological advancements. Your contributions will be vital in enhancing our software solutions and ensuring they meet the highest standards of quality and performance.We are looking for a passionate individual who thrives in a collaborative environment and is eager to tackle complex challenges. If you are ready to take the next step in your career and make a significant impact, we want to hear from you!