Backend Software Engineer

About the RoleJoin our innovative team at character as a Backend Software Engineer. In this pivotal role, you will develop and sustain scalable, high-performance backend systems that drive our products forward. You will collaborate closely with designers, data scientists, and fellow engineers to create, design, and implement robust backend solutions that mee…

Join Hadrian in Shaping the Future of ManufacturingAt Hadrian, we are on a mission to revolutionize the aerospace and defense manufacturing landscape through our state-of-the-art autonomous factories. Our innovative approach enables companies to manufacture rockets, satellites, jets, and ships at speeds up to 10 times faster and at costs reduced by half. By integrating cutting-edge software, robotics, and comprehensive manufacturing solutions, we are redefining the production of America's most essential components.Recently, we secured a $260 million Series C funding to expedite our vision. We are thrilled to open a new state-of-the-art Factory in Mesa, Arizona—a sprawling 270,000 square foot facility that will create 350 immediate job opportunities. Furthermore, we are establishing a new headquarters to accommodate thousands of hires in the future, launching Hadrian Maritime to support naval production, and introducing our Factory-as-a-Service model for delivering holistic systems instead of mere parts.We collaborate with startups, Tier 1 and Tier 2 suppliers, and major defense contractors across industries such as space, shipbuilding, and aviation to enhance production, drive down costs, and expedite delivery of mission-critical initiatives. Backed by prominent investors like Lux Capital, Founders Fund, and Andreessen Horowitz, our rapidly expanding team is united by a singular goal: to modernize American manufacturing for the 21st century and beyond!Your RoleAs a Backend Software Engineer, you will engage with multiple internal products and teams:Flow is our flagship FactoryOS platform, housing applications that model, manage, and automate an intricate web of factories.Copilot offers a suite of automation products that enhance or expedite crucial factory processes, including quoting, CAM programming, and CMM programming.Factory Automation is responsible for creating robotic solutions for our factories along with the software that powers them.Prospective candidates will find diverse opportunities to innovate within our extensive backend services and applications, particularly in redefining manufacturing software, from distributed systems to automation infrastructures.Key ResponsibilitiesDesign, architect, implement, and deploy critical backend services across various product lines.Develop and maintain robust, scalable, and high-performance APIs and systems tailored for a complex production environment.Collaborate with manufacturing and software experts during product discovery to determine essential features and improvements.

Join Air Apps as a Backend Software EngineerAt Air Apps, we’re passionate about innovation and speed. Founded by a family in 2018 in Lisbon, Portugal, we are on a mission to revolutionize how individuals and entrepreneurs manage their resources with our AI-powered Personal & Entrepreneurial Resource Planner (PRP). With over 100 million downloads globally, and offices in both Lisbon and San Francisco, we continue to grow as a self-funded company.As a Backend Software Engineer, you will play a crucial role in designing, developing, and maintaining the server-side components of our applications. Your collaboration with product managers and frontend developers will ensure our services are robust and scalable, ready to support our rapid growth.Join us in this exciting journey to redefine resource management and positively impact lives worldwide.

Backend Software EngineerConfluera is an innovative cybersecurity startup backed by Series B funding, dedicated to safeguarding the cyber landscape. Our mission is to fortify enterprises today to ensure a more secure tomorrow. We provide a comprehensive solution that enhances visibility across cloud environments, empowering cybersecurity leaders with real-time attack prevention capabilities.Key Responsibilities- Design and construct distributed systems capable of processing vast amounts of data.- Develop, maintain, and optimize APIs and systems for scalable product enablement.- Create advanced models and features to improve anomaly detection accuracy.- Collaborate and communicate effectively with Product, Design, and Engineering teams.- Rapidly develop and iterate on solutions while upholding high-quality standards.Required Qualifications- Proficiency in programming languages such as Java and Python.- Experience with streaming platforms like Kafka.- Familiarity with stream processing frameworks, including Spark.- Understanding of distributed systems architecture.Preferred Qualifications- Prior experience working with streaming and stream processing systems (Kafka, Spark, etc.).- Knowledge in building ETL pipelines.- Experience delivering and maintaining large-scale production systems.- Leadership experience in technical projects.Educational Background- A Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related field, or equivalent professional experience.

Company OverviewAt Tennr, we are revolutionizing the referral process in healthcare. When patients receive a referral from their doctors, the wait can often feel endless—sometimes lasting days, weeks, or even months. This delay is largely due to the overwhelming volume of referrals and the cumbersome manual processes that can hinder timely action. With our innovative technology powered by RaeLM™, Tennr ensures that every referral reaches its destination swiftly and accurately, with all necessary information in hand. We empower providers to capture more referrals, minimize denials, and eliminate waiting times.Role OverviewWe are on the lookout for a dedicated Backend Software Engineer who specializes in systems architecture, data modeling, and large-scale workflow orchestration. In this pivotal role, you will architect and implement features across our backend services and infrastructure, delivering significant value to our customers. Your responsibilities will include designing and optimizing data schemas, developing resilient backend services, and ensuring seamless integration with third-party systems.You will spearhead initiatives focused on high-volume workflow automation, emphasizing the creation and optimization of scalable data processing and machine learning infrastructure. This encompasses the design and maintenance of complex workflows that harness ML for automation, alongside performance optimization efforts to guarantee scalability and reliability throughout the stack.Collaboration is essential in this role. You will work closely with our sales and customer experience teams to incorporate valuable customer feedback, and partner with engineering colleagues to bring robust solutions to life. We are seeking someone who embodies a founder's mindset, excels in systems-wide thinking, and proactively drives projects from inception to completion.The ideal candidate will have substantial experience with backend architecture, event-driven systems, and orchestration frameworks, showcasing a proven history of developing production-ready systems. You will play a crucial role in shaping the technical foundation of our platform, ensuring its reliability, scalability, and adaptability as we continue to grow.

Location: Waltham, MA (hybrid) At ERGO NEXT, our mission is to empower entrepreneurs to succeed by offering the industry's only technology-driven, full-stack solution for small business insurance. We are transforming the entire value chain to enhance the customer experience. Since our establishment in 2016, we've provided hundreds of thousands of small business clients across the U.S. with quick, customizable, and affordable insurance coverage. Supported by leaders in the insurance and tech sectors, we are poised for further growth—and that’s where you come in. As a Backend Software Engineer, you will work with cutting-edge backend technologies and programming languages, primarily server-side Kotlin. We pride ourselves on producing clean, testable code quickly and deploying it several times a day via our CI/CD pipeline. Your Responsibilities: Collaborate closely with product teams, marketing staff, and front-end engineers to quickly develop and iterate on our product, discovering optimal solutions for our challenges. Take ownership of features from conception through design and coding, ensuring high quality and test coverage upon deployment.

Be a Part of the Financial Revolution.At Robinhood, our goal is to make finance accessible for everyone. With an anticipated transfer of $124 trillion in wealth to younger generations in the coming decades, we are poised at the forefront of this transformative moment. If you're eager to engage in this monumental cultural and financial transition, we want to hear from you.About the Team and Your RoleOur team is comprised of leading innovators, utilizing cutting-edge technology to tackle the most significant challenges in the financial sector. We seek courageous thinkers and adept problem-solvers—builders who are committed to making a meaningful difference. Robinhood is a dynamic environment where ambitious individuals can excel and achieve remarkable success. Our high-performing and fast-paced team prioritizes ethics in all endeavors, setting high expectations alongside substantial rewards.As a Backend Software Engineer, you will take ownership of backend services, infrastructure, and data systems integral to Robinhood's core financial offerings. This role involves addressing complex scalability issues while deepening your understanding of U.S. financial systems and creating a direct impact on products that millions rely on.The Brokerage team focuses on facilitating the launch of new features, broadening our financial services, and welcoming millions more into the financial ecosystem. This team manages essential services that underpin trading and brokerage infrastructure, collaborating closely with engineering, product, and operations teams throughout Robinhood.The Incentives team drives user growth and engagement through strategic incentives and platform capabilities. One sub-team concentrates on boosting net deposits through various levers, while the other develops a centralized, scalable platform to deliver personalized rewards company-wide.The Identity team safeguards both Robinhood and its users by preventing fraud and ensuring compliance with regulations. They manage vital systems for identity verification, KYC, and fraud prevention across all products, working closely with teams like Data Science, Brokerage, and others.

Nomi Health aims to make healthcare more transparent and efficient by tackling unnecessary complexity and streamlining processes. The company’s platforms reach millions of people, supporting both local communities and large organizations nationwide. Role overview This remote Backend Software Engineer position centers on building and improving platforms that handle healthcare payments, simplify operations, and support real-time data sharing. The work directly supports efforts to make care more accessible and effective. What you will do Develop and maintain backend systems using Go, GraphQL, and AWS. Create solutions that scale to meet modern healthcare demands. Contribute to projects that improve payment workflows and operational efficiency. Build tools that enable real-time data exchange for healthcare platforms.

Join our innovative team at Harvey as a Senior Backend Software Engineer! In this pivotal role, you will be responsible for designing, developing, and maintaining our backend systems that power our software solutions. You will collaborate with cross-functional teams to deliver high-quality software that meets the needs of our clients.If you are passionate about backend development and eager to tackle complex challenges, we want to hear from you!

Join our dynamic team at foodsmart as a Senior Backend Software Engineer. In this key role, you will be responsible for designing and implementing scalable backend systems that power our innovative food technology solutions. Work closely with cross-functional teams to deliver high-quality software that enhances user experiences. Your expertise will help us shape the future of how people interact with food.

Backend Software Engineer Role Overview We are on the lookout for a talented and enthusiastic Backend Software Engineer to become a vital part of our innovative development team. In this role, you will design, develop, and maintain the back-end components of our web applications. Collaborating closely with cross-functional teams, you will help deliver high-quality, scalable, and dependable server-side solutions tailored to meet our customers' needs and align with our business goals. Desired Qualifications Proficiency in back-end programming languages such as Golang, Python, or similar technologies. Hands-on experience with relational and/or NoSQL databases. Familiarity with version control systems (e.g., Git) and CI/CD pipelines. Solid understanding of web security principles and best practices. Experience with containerization and Kubernetes-based deployments. Familiarity with cloud platforms including GCP, Azure, or AWS. What We Are Looking For Experience with GCP and/or relevant GCP certifications. Knowledge of DevOps practices and tools. Strong analytical and problem-solving skills. Self-motivated, capable of working independently as well as part of a team. A passion for continuous learning and keeping abreast of technology trends. Key Responsibilities Back End Development: Design, develop, and maintain the back-end components of web applications utilizing modern technologies and frameworks. Create and manage RESTful APIs to facilitate seamless communication between front-end and back-end systems. Produce clean, maintainable, and well-documented code that aligns with industry best practices. Collaboration: Work closely with product managers, designers, and front-end developers to gather requirements, brainstorm solutions, and implement features. Engage in code reviews to ensure code quality, identify potential issues, and share knowledge with team members. Contribute to the ongoing enhancement of development processes and tools. Problem-Solving: Troubleshoot and resolve issues concerning back-end functionality. Identify and address performance bottlenecks to optimize application speed and efficiency. Stay updated with the latest technologies and trends in back-end development.

Company BackgroundAt Specter, we are pioneering a software-defined control plane that enhances the safety and visibility of physical assets for American businesses. Our innovative approach leverages a robust hardware-software ecosystem built on advanced multi-modal wireless mesh sensing technology, drastically reducing the costs and time associated with sensor deployment.Our platform is set to revolutionize the way companies perceive their physical environments, enabling real-time visibility and management of operations. With a passionate team hailing from prestigious organizations such as Anduril, Tesla, Uber, and the U.S. Special Forces, we are committed to leading the charge in the rapidly evolving realm of physical AI and robotics.Role + ResponsibilitiesWe are on the lookout for a Backend Software Engineer to join our engineering team. In this role, you will be instrumental in designing, deploying, and scaling distributed systems that power our mother node base stations and cloud services. Your contributions will ensure the reliability, scalability, and performance of Specter’s sensing and perception platform across both edge devices and cloud infrastructure.Key responsibilities include:Architecting and operating distributed, Linux-based systems across edge and cloud environments.Designing scalable pipelines for streaming, storing, and processing vast amounts of video and sensor data.Building containerized services (Docker/Kubernetes) for the deployment of perception and inference workloads at scale.Developing observability systems for monitoring, logging, and alerting across our fleet of edge nodes and cloud infrastructure.Optimizing queue-based video ingestion, transcoding, and upload pipelines for reliability in bandwidth-constrained environments.Implementing highly available infrastructure for real-time alerting, APIs, and customer-facing event systems.Collaborating cross-functionally with hardware, perception, and application teams to ensure infrastructure supports rapid iteration and scalability.

Field sales is a critical driver of our economy; however, many teams are facing challenges. Sales representatives find themselves overwhelmed with administrative tasks, managers are stretched thin, and leaders lack visibility into field activities.At Siro, we are revolutionizing the way field sales teams engage, learn, and succeed.Initially launched as an AI-driven coaching platform aimed at enhancing sales outcomes, we have evolved into a more comprehensive solution. Our intelligent companion not only automates mundane administrative tasks for sales reps but also provides managers with real-time insights and empowers executives with predictive analytics.Our platform seamlessly integrates with systems like Salesforce, analyzing a multitude of in-person sales conversations to extract valuable insights, automate workflows, and enhance organizational performance. Imagine having an Iron Man-like assistant tailored for sales—proactive, personalized, and integrated with the tools teams rely on daily.Backed by $75 million from prestigious investors such as Index, Fika, CRV, and SignalFire, Siro serves leading brands in home improvement, retail, hospitality, and automotive industries. Our team comprises talented individuals from top-tier companies including Meta, McKinsey, DoorDash, and Uber.Join us as we shape the future of human-AI collaboration in sales—this is just the beginning!

Join our innovative team as a Backend Software Engineer and help us redefine the future of talent acquisition. At Lever, we are committed to building cutting-edge hiring software that empowers organizations like Netflix, Shopify, and Spotify to attract and retain top talent. As we continue to evolve and enhance our platform, we seek passionate individuals who thrive in a collaborative, people-first culture.While this posting serves as a test job for Lever's environment, we invite you to explore our actual openings and consider joining our award-winning team.

About AtomicAtomic is an innovative and rapidly growing company dedicated to transforming financial services and enabling wealth creation around the globe. We develop essential financial infrastructure that empowers consumer-facing businesses to deliver seamless investment experiences to their clients. Our platform features cutting-edge investment capabilities, including ESG investing and multi-currency trading across 60 international markets. Our diverse team comprises financial empowerment advocates drawn from various sectors, including technology, banking, finance, and law.Having recently completed our Series B funding, we are poised for significant growth. Join us for an exciting opportunity to make a meaningful impact!Your RoleIn this position, you will play a crucial role in the design, development, and architecture of our microservices. As a technology-driven organization, we utilize a cloud-native technology stack (Kubernetes, Istio). At Atomic, you will contribute to building services that facilitate financial prosperity for everyday individuals.

About FormalAt Formal, we empower organizations with cutting-edge data security solutions that enable teams to effectively manage and understand their data seamlessly.Our innovative approach involves developing a state-of-the-art protocol-aware reverse-proxy for datastores and APIs, allowing businesses to monitor their data in real-time. This capability ensures that sensitive information is handled according to the principle of least privilege, utilizing masking, filtering, and anonymization strategies.We proudly serve top-tier companies such as Ramp, Gusto, and Notion, helping them navigate challenges in data security, compliance, and infrastructure access.Backed by leading venture capital firms like Thrive Capital and Y Combinator, alongside angel investors from renowned tech companies such as Datadog, Clickhouse, Plaid, and Vanta, Formal is at the forefront of data security innovation.About the RoleWe are on a mission to assemble an exceptional engineering team and are seeking individuals eager to make a substantial impact on our product and company growth.The ideal candidate possesses a profound understanding of scalable backend systems, demonstrates a strong sense of ownership, and thrives on managing projects from their inception to full-scale production deployment.Our current technology stack includes Golang, Rust, Temporal, various datastore protocols (such as Postgres, S3, Kafka, MySQL, Snowflake, Redshift, SSH), and AWS.What You'll DoDesign and develop a robust data platform capable of processing substantial data volumes in real-time.Lead the development of new product features, overseeing everything from research and implementation to ongoing maintenance.Enhance the performance and reliability of both new and existing features.Spearhead initiatives that could significantly influence Formal's trajectory.Architect scalable services as the company grows and manages increasing traffic.What You NeedProven experience in software development, specifically in building data-intensive platforms.A strong appreciation for code simplicity and performance optimization.Expertise in Golang and familiarity with its ecosystem.Experience with data streaming frameworks such as Apache Kafka and Google Pub/Sub.

About WisdomAIAt WisdomAI, we are committed to democratizing data access and insights. Our mission is to empower individuals and organizations to leverage data for informed decision-making. With the advent of Generative AI, we have the unique opportunity to revolutionize how insights are accessed within enterprises. Now is an exciting time to join us as we partner with several Fortune 100 companies and are at a pivotal stage where your contributions will significantly shape our product and engineering strategies.Role OverviewWe are seeking a talented Backend Engineer to become a part of our founding team. In this role, you will be instrumental in constructing efficient, secure, and highly scalable machine learning and data pipelines.Key ResponsibilitiesDevelop large-scale data pipelines to efficiently process latency-sensitive analytical tasks.Utilize modern cloud infrastructure to create cost-effective and scalable systems.Collaborate closely with customers and founders to define the product and engineering trajectory.Contribute to shaping the engineering culture and technology stack within the organization.QualificationsProven experience in developing large-scale data pipelines.Bachelor's or Master's degree in Computer Science or a related discipline.Previous experience in a startup or fast-paced environment is highly desirable.

At Mirage, we are pioneering an AI-driven video platform that revolutionizes the production and editing process through natural language. Our innovative models harness contextual intelligence to replicate the creative decisions made by professional editors, thereby significantly enhancing productivity for experienced teams while democratizing video creation for all.Join our interdisciplinary team as we confront some of the most complex technical and creative challenges in generative media. As an early member of our team, your contributions will address foundational issues that remain largely unresolved in the industry, allowing you to make a substantial impact on the future of creative expression.Learn more about usProduct (Captions by Mirage) Research (Seeing Voices, technical-white-paper)Updates (Follow us on X / Twitter)TechCrunch, Forbes AI 50, Fast Company (press releases)Our Esteemed InvestorsWe are privileged to have the support of top-tier investors and visionary entrepreneurs, including Index Ventures, Kleiner Perkins, Sequoia Capital, Andreessen Horowitz, and many others.Please note that all roles require in-person attendance at our NYC headquarters located in Union Square.Role OverviewAs a Backend Software Engineer at Mirage, you will have the opportunity to engage in diverse areas including product development, platform engineering, and machine learning. You will be responsible for building and managing the systems, services, APIs, and machine learning pipelines that drive our product offerings. Collaborating closely with product, design, client, and AI teams, you will take ownership of critical backend systems from conception to completion, transforming ambitious ideas into robust and scalable production solutions.

Join our innovative team at Robinhood as a Backend Software Engineer, where you will play a pivotal role in building scalable systems that empower our users to take control of their financial futures. We are looking for passionate engineers who thrive in a fast-paced environment and are excited about leveraging technology to create impactful solutions.