Senior Backend Software Engineer - Infrastructure

Join our dynamic team at Kira as a Senior Software Engineer with a focus on backend infrastructure. In this pivotal role, you will design, develop, and maintain scalable backend systems that power our innovative solutions. You will collaborate with cross-functional teams to enhance performance, reliability, and security of our infrastructure.Your expertise w…

Join a Transformative Force in TechnologyAt Palantir, we create groundbreaking software that revolutionizes data-driven decision-making and operational efficiency. Our platforms enable partners to combat critical challenges—from developing life-saving medical treatments to predicting supply chain disruptions and locating missing persons.Position OverviewAs a Backend Software Engineer at Palantir, you will play an essential role in shaping how organizations leverage data. You will be engaged in all stages of the product lifecycle, from ideation and design to prototyping and final deployment. Collaborating with both technical and non-technical team members, you will gain insights into customer challenges and develop innovative solutions. We promote cross-team collaboration, allowing you to expand your knowledge across various technologies and product facets. You will work autonomously and make impactful decisions within a supportive community that fosters your growth into a technical leader.Our Product Development teams are composed of small, focused groups of Software Engineers, each dedicated to distinct aspects of our offerings. The infrastructure teams are tasked with fortifying the foundational layers of our software stack, emphasizing database technologies, distributed systems, large-scale data architectures, security, and application infrastructure. In this role, you will write robust code that supports Palantir Foundry and Gotham, ensuring high performance, security, and scalability for products utilized by key public and private sector institutions. You will be instrumental in building the core capabilities that empower research scientists, aerospace engineers, intelligence analysts, and economic forecasters worldwide.We seek engineers who are driven by a passion for solving real-world challenges, enabling both developers and end-users to maximize their productivity. If you are eager to create reliable, high-performing, and scalable systems, and to design resilient APIs, this opportunity allows you to make a substantial impact on our products and the communities we serve.

CVector is dedicated to revolutionizing economic optimization and AI-driven predictions across energy and manufacturing sectors.Our technology seamlessly integrates critical decision-making factors that impact cost, reliability, and profit margins, providing a unified decision layer that forecasts future scenarios, simulates potential outcomes, and optimizes operational strategies. This allows industrial plants to operate closer to their maximum economic potential daily.This position requires in-office attendance at our New York City headquarters four days a week. CVector serves clients nationwide and operates in challenging industrial environments.Role OverviewAs a Senior Software Engineer specializing in Backend and AI Infrastructure, you will be instrumental in advancing CVector’s backend platform. Your focus will be on developing time-series data systems, AI-enhanced analytics, cloud infrastructure, and data ingestion pipelines that underpin our client-facing applications and internal modeling tools.This role is ideal for engineers who thrive on working closely with data and infrastructure, possess excellent architectural judgment, and are eager to engage with AI systems, databases, and distributed backend services. You will take ownership of complex systems, lead significant technical migrations, and influence the integration of intelligence into industrial energy workflows.You will work in close collaboration with product, modeling, and frontend engineers, significantly impacting the platform's direction, reliability, and scalability for the long term.Key ResponsibilitiesAs a Senior Software Engineer, your contributions will span various interconnected domains:Intelligent SystemsTranslate customer domains and operational workflows into effective prompts and AI system interfaces.Design, implement, and refine evaluations for AI outputs.Incorporate customer feedback and reinforcement signals to enhance system performance.Optimize context selection, retrieval, and trace collection to elevate output quality.Fine-tune smaller models using collected traces to enhance speed while maintaining performance standards.Evaluate and assimilate new AI platforms and models as they emerge.Support the training and deployment of large, time-series-specific models.Backend Platform and Data InfrastructureOversee migrations and enhancements of our time-series data schemas and storage systems.Update and manage PostgreSQL and associated database infrastructure.Develop and sustain data connectors for industrial and external systems.Lead improvements to MQTT-based data ingestion pipelines.Transition PostgREST to a GraphQL-based framework and evolve our API architecture.

About UsAt Credal, we are committed to leveraging cutting-edge AI technologies to empower those who are dedicated to shaping a brighter future.Our platform accelerates the complex operations of leading institutions while embedding robust security and governance at every level of our offerings. Our esteemed clientele includes the U.S. Department of Health and Human Services, MongoDB, Comcast NBC Universal, Lattice, Wise (formerly TransferWise), Checkr, and incident.io, among others.With over $10 million in funding secured, we have ample runway to support our ambitious goals. Join a team of Thoughtful Doers™ hailing from top-tier companies such as Palantir, Cruise, Meta, Uber, and Google. Credal operates in-person from our spacious NYC office, complete with meals provided.

Join Brellium as a Senior Backend / Infrastructure Engineer in the vibrant heart of New York City. In this pivotal role, you will be responsible for designing, implementing, and maintaining robust backend systems that power our innovative solutions. You will collaborate with cross-functional teams to ensure seamless integration and high performance of our applications.

Senior Backend Engineer – Transform Telecom Infrastructure for NextGenAt OXIO, we are revolutionizing the telecom landscape with the world’s first Telecom-as-a-Service (TaaS) platform. Our mission is to democratize telecom, empowering brands and enterprises to own and manage proprietary mobile networks tailored to their unique customer needs. By integrating multiple networks into a single, cloud-based platform, we provide a modern SaaS solution that offers full network access, delivering exceptional business intelligence and insights to enhance understanding of customer and machine behavior. With a relentless focus on innovation, OXIO enables companies to establish a robust telecom presence while unlocking unparalleled customer insights.As we expand our capabilities, we are looking for an experienced Tech Lead to contribute to our flagship BrandVNO platform. In this pivotal role, you will lead the development of our software development kit (SDK), empowering clients to craft groundbreaking telecom experiences within their mobile applications.

About the RoleAt Counsel Health, we have developed an innovative product that has garnered admiration from both patients and physicians, utilizing a fast-paced technology stack. As we continue to grow, the complexity between our application code and infrastructure is expanding. We are seeking a talented individual who thrives in this dynamic intersection.We are in search of a Backend Infrastructure Engineer who embodies both software engineering and infrastructure expertise. This role is not about working in isolation writing Terraform scripts all day or solely delivering product features in React. Instead, you will work within the essential layer that connects our CI/CD pipelines, Infrastructure as Code (IaC) for our AWS environment, backend services, and the developer tools that empower our rapidly expanding engineering team.Your ResponsibilitiesEnhance Our Infrastructure-as-Code: Design and manage our cloud infrastructure utilizing Terraform.Optimize CI/CD Processes: Take ownership of our build, test, and deployment pipelines from start to finish. Aim to make production deployments effortless, speedy, reliable, and automated.Backend Development: Create production-level backend services and contribute to our core server-side systems. You are proficient in writing application code, not just orchestrating it.Create Core Archetypes: Develop production-grade archetypes for new deployments, jobs, consumers, and workers. You are adept at building an abstract base stream consumer or cron executor for widespread application.Enhance Developer Experience: Act as the engineer who accelerates the productivity of other engineers. Streamline local development workflows, decrease build times, resolve flaky infrastructure issues, and create internal tools that the team genuinely values.Security & Compliance: Collaborate closely with our security and compliance team to strengthen our infrastructure security posture, including secrets management, IAM policies, network isolation, and audit logging in a HIPAA-compliant environment.Who You AreA Bridge Builder: You feel at home in an IDE crafting application code as well as in a terminal managing cloud infrastructure. You view backend and infrastructure as intertwined disciplines.An Automation Advocate: If a task is done manually more than twice, you are already scripting it for automation.A Systems Thinker: You comprehend how a request traverses through various systems and how they interact.

About the Role:Parker is dedicated to a bold mission: empowering individuals to achieve financial independence. We believe that by providing independent business owners with essential financial tools, we can help them scale their operations profitably.Our flagship product merges a virtual corporate card with financial software designed for profitability, enabling eCommerce merchants to accelerate growth while effectively managing their margins.To date, we have successfully raised over $180M from top-tier investors, including Valar Ventures, Y Combinator, SVB, and industry pioneers such as Solomon Hykes (Docker), Paul Buchheit (Gmail), Paul Graham (Y Combinator), and Robert Leshner (Compound).As a dynamic Series B fintech, we are rapidly expanding, boasting a robust product-market fit, a burgeoning customer base, and a team driven by technical excellence and impactful solutions.We are seeking a Senior Software Engineer – Backend to architect, develop, and scale the critical systems that underpin Parker’s financial platform. In this pivotal leadership role, you will influence backend architecture, data infrastructure, and engineering best practices during our growth phase.You will work collaboratively with Product, Infrastructure, and Data teams to deliver high-performance, reliable systems that handle billions in transactions and empower thousands of merchants. This high-impact position is ideal for engineers who thrive on ownership, relish the challenge of complex systems, and prioritize elegant, maintainable solutions.What You’ll Do:Design and scale backend services that drive Parker’s financial products and APIs.Lead architectural strategies to guarantee performance, reliability, and scalability across our systems.Develop and maintain services in a modern cloud-native environment (Node.js, PostgreSQL, Docker, Kubernetes, AWS).Collaborate with product and infrastructure teams to create secure, user-friendly APIs and data models.Promote engineering excellence through code reviews, mentorship, and architectural guidance.Identify performance issues and spearhead initiatives to enhance reliability, observability, and system design.Contribute to the advancement of Parker’s technical roadmap and long-term engineering vision.

At Bubble, our mission is clear: we aim to empower everyone to create software. We believe that anyone with a transformative idea should have the means to bring it to life. Our AI-driven visual development platform allows individuals, from first-time entrepreneurs to established enterprise teams, to transform ideas into fully functional, scalable applications across web, iOS, and Android—all without the need for coding or managing complex workflows.As the sole full-stack, cross-device no-code platform, Bubble has garnered over 5 million users across more than 100 countries, breaking down barriers to entrepreneurship and innovation worldwide.Our Achievements:Our platform is thriving, with entire VC-backed companies being built solely using Bubble. After successfully finding product-market fit and eight years of bootstrapping, we secured a $100 million Series A funding round, establishing ourselves as one of the fastest-growing companies within the New York tech ecosystem. The potential of Bubble is demonstrated by our community—individuals are not just launching products; they are creating viable businesses. For instance, Mailead turned a $10k investment in a Bubble product into a $2M valuation, while Faceless.video achieved over $1M in annual recurring revenue within a year.About the Platform Team:Our Platform team is dedicated to enhancing our scaling, reliability, and enablement capabilities as we aim to double our customer base in the coming years. Our responsibilities encompass both scalable infrastructure and our core backend systems. Success in this role means delivering timely capacity, executing workloads rapidly, and guaranteeing data scalability across diverse applications while managing costs and addressing implementation and infrastructure inefficiencies.About the Role:Join a small, elite team tackling challenges faced by the largest cloud providers. This position is an opportunity to be at the forefront of a platform that is revolutionizing the traditional engineering stack globally. Additionally, you will contribute to fostering an inclusive, effective, and collaborative engineering culture. This role requires after-hours and on-call availability.

About TitanTitan is an award-winning wealth management platform on a mission to revolutionize the financial landscape by making wealth advisors accessible to everyone, not just the ultra-wealthy. By leveraging cutting-edge technologies such as artificial intelligence, we empower our advisors with tools that enhance their capabilities, allowing them to serve a diverse clientele. Backed by notable investors including a16z, General Catalyst, and Sam Altman, we proudly manage over $1 billion in assets nationwide.Why Join TitanAt Titan, we are committed to creating an enriching work environment that promises unparalleled growth and fulfillment for the right candidate.Visionary Goals: Join us in our ambitious pursuit of democratizing wealth management, enabling lasting wealth growth across generations.Timely Relevance: The emergence of LLMs presents an unprecedented opportunity to reshape personalized wealth management, propelling our mission forward.Significant Contribution: Be part of a small, dynamic team where your contributions will have a monumental impact on our growth trajectory.Collaborative Culture: We foster a vibrant, in-person working environment where team collaboration thrives, including daily engagement with our founders.Competitive Compensation: Titan offers attractive salary packages and equity options that reflect our commitment to team ownership.Renowned Investors: Join a company supported by some of the most respected names in the industry, including a16z and Y Combinator.Role OverviewAs a Senior Backend / Infrastructure Engineer at Titan, you will play a pivotal role in crafting the systems that drive our next-generation Registered Investment Advisor (RIA) platform, set to scale beyond our current $1B in assets under management (AUM). Collaborating with seasoned professionals from Google and Meta, you will be responsible for architecting, building, and optimizing our core backend services, trading systems, real-time APIs, data pipelines, and automated workflows—all while ensuring security, scalability, and resilience. Your technical expertise will significantly influence platform reliability and performance as we grow.

About AKASAAt AKASA, we are on a transformative journey to redefine healthcare through the power of artificial intelligence. As a trailblazer in generative AI solutions tailored for the healthcare revenue cycle, we empower health systems to accurately capture and relay the complete patient clinical journey. By enhancing operational efficiency, we enable these systems to prioritize what truly matters: delivering exceptional patient care. With over $205 million raised in funding from esteemed investors like Andreessen Horowitz, BOND, and Costanoa Ventures, our future is bright.Now is the most thrilling time to become part of AKASA. Since launching our innovative AI-native product suite in 2024, revenue bookings have surged over 20 times. We have set records by closing the largest deals in our company’s history three times in a row, driven by the substantial advancements we've made in clinical quality and documentation accuracy—two critical areas for health system leaders.Our implementations have garnered national attention, being recognized as "one of the most comprehensive real-world applications of GenAI in healthcare finance to date" (link). Our clientele represents over $120 billion in net patient revenue and includes pioneering health systems like Cleveland Clinic, Duke, Stanford, and Johns Hopkins.Recently, we have been honored with accolades such as being named the #1 most promising healthcare RCM startup of 2025 by Black Book Market Research and listed among the fastest-growing GenAI startups to watch by AIM Research. Our CEO has been recognized as one of the “Top 50 Healthcare Technology CEOs” by the Healthcare Technology Report, and we have proudly maintained our status as a “Great Place to Work” for five consecutive years.Join us as we build on this momentum to redefine the possibilities within healthcare. We seek exceptional talent to help accelerate this mission.About the RoleAs a Senior Backend Software Engineer, you will develop AI-driven solutions for our Clinical Documentation and Medical Coding suite. Collaborating closely with product, design, and machine learning teams, you will design and implement services, APIs, and tools that enhance our SaaS offerings. You will have the opportunity to work on groundbreaking projects that directly impact healthcare delivery.

About Us:Ether.fi stands as one of the leading cryptocurrency companies globally, managing over $10 billion in assets with a predominantly technical team of 30 members. We have achieved profitability from day one and are dedicated to developing impactful consumer applications.Our vision encompasses the evolution of genuine on-chain banking. Our innovative products—Stake, Liquid, and Cash—empower users to earn yield through diverse DeFi strategies while facilitating real-world spending via our credit cards. Public analytics for Cash and Stake are available for review.Position Overview:We are in search of a senior backend software engineer to take charge of our core backend architecture, transaction processing, and ensuring high availability. You will be part of a pivotal engineering team committed to delivering distributed, scalable, and resilient backend systems. This includes card transaction processing, low-latency APIs, microservice architectures, and on-chain data indexing—essentially, everything a neobank would aspire to build is on our roadmap.Responsibilities:Take ownership of critical components within our backend systems, enhancing functionality to boost throughput and reduce latency.Design, develop, and optimize scalable transaction processing services to facilitate high-throughput, low-latency financial transactions.Address challenges related to user friction during card transaction declines.Enhance our Cloud Infrastructure, CI/CD pipelines, automation, observability, and monitoring systems.Qualifications:Solid foundation in software engineering principles and problem-solving abilities.Proven experience in shipping remarkable products that serve thousands of real users.A minimum of 5 years of professional coding experience.A strong drive and a commitment to excellence; we are a highly ambitious team with bold goals, and we strive diligently to achieve them.Experience in web3 technologies is a plus.Perks and Benefits:Competitive salary and performance-based incentives.

About KiddomKiddom is an innovative educational platform dedicated to enhancing student equity and growth. By combining high-quality instructional resources with interactive digital learning, Kiddom enables schools and districts to take control of their curriculum. This results in personalized learning experiences that cater to the distinct needs and aspirations of local communities. The platform is enriched with insightful data for teachers and leaders, fostering continuous improvement in instructional strategies, school programming, and professional development.As a member of the InfraOps team, you will play a crucial role in supporting Kiddom's engineering efforts by developing a scalable and sustainable infrastructure that aligns with our company objectives. This is a unique chance to join a small, skilled team during a pivotal moment as we transition from Series C to D funding. You will have the autonomy to influence your work significantly, embracing a variety of tasks that reflect your expertise and enthusiasm.Key Responsibilities:Promote and cultivate a robust DevOps culture at Kiddom by collaborating with teams to establish best practices and guide both new and existing services.Implement Infrastructure as Code (IaC) to ensure confidence in automated, repeatable processes.

About UsAt Credal, we are dedicated to leveraging cutting-edge AI technology to empower those who are shaping a better tomorrow.We enhance the most sophisticated operations of leading institutions, seamlessly integrating security and governance throughout our offerings. Our esteemed clientele includes notable organizations such as the U.S. Department of Health and Human Services, MongoDB, Comcast NBC Universal, Lattice, Wise (TransferWise), Checkr, and incident.io.Having successfully raised over $10 million, we have a significant runway to support our vision. Join our team of Thoughtful Doers™ hailing from industry giants like Palantir, Cruise, Meta, Uber, and Google. At Credal, we foster a collaborative in-person environment at our spacious NYC office, where meals are provided.

Join our client's innovative team at bloomforthcorp, where we are revolutionizing project management through advanced artificial intelligence software. As a Senior Backend Software Engineer, you will have the opportunity to contribute to a dynamic and diverse team that is dedicated to creating high-quality, impactful products at scale. This is a unique chance to join an early-stage, high-performing team committed to a mission that aims to transform how teams across the globe tackle challenges with AI-enhanced management.In this role, you will lead the backend development efforts, crafting exciting new features and complex interfaces while making critical technical decisions that influence the product's direction. Your expertise in Ruby on Rails will be pivotal in driving our backend team’s success.Our Technology Stack includes: Rails, Typescript, and React.

About Pangram LabsAt Pangram Labs, we are dedicated to ensuring authenticity through the development of cutting-edge AI detection systems. Our team is at the forefront of research, creating algorithms and products that integrate our advanced technology into everyday life.We seek individuals who are proactive, mission-focused, and passionate about innovation to join our in-person team based in Brooklyn, New York.About the RoleWe are on the lookout for a Senior Software Engineer with a backend emphasis to design, implement, and scale our production systems, which support our core technology for a rapidly expanding user base.In this senior-level position, you will be responsible for the backend infrastructure that drives Pangram's AI detection platform. You will have the autonomy to make architectural decisions, tackle complex scaling challenges, and ensure that our systems remain reliable and efficient as user demand increases. Collaborating closely with our frontend and machine learning teams, you will work primarily with our Django backend and AWS infrastructure.What You'll DoDesign and develop scalable backend services and APIs to deliver AI detection features effectively.Ensure the reliability, performance, and observability of our production systems.Architect and manage data pipelines, caching layers, and service infrastructure using AWS.Collaborate with machine learning engineers to deploy and manage machine learning models in production.Identify and resolve performance bottlenecks as user traffic and system complexity increase.Establish and enhance engineering best practices related to testing, deployment, and incident management.

Clear Street develops technology that opens access to a wide range of assets for sophisticated investors in global markets. The company’s cloud-native platform is built for speed and transparency, supporting both institutional and modern investment needs. Clients use tools and services previously available only to major institutions, now adapted for today’s markets. The team combines experienced engineers and finance professionals to create essential solutions for the financial sector. Engineers at Clear Street work on platforms that serve institutional clients and drive technical progress in finance. The team values collaboration, creativity, and a strong work ethic, supporting growth with modern technologies that have a direct impact on the industry. Role overview The Senior Backend Software Engineer role centers on building backend systems for financial applications, with a focus on digital assets. This position involves designing, developing, and supporting scalable backend services for trading platforms, payment systems, and digital asset infrastructure. The work blends traditional finance with decentralized technologies and calls for rigorous engineering in a rapidly changing environment. Key responsibilities Design and implement backend services and APIs for financial applications. Build and maintain systems for trading, settlement, and asset custody, covering both fiat and cryptocurrency. Integrate with blockchain networks such as Ethereum and Bitcoin, along with third-party financial APIs. Ensure systems are reliable, secure, and scalable for high-throughput operations. Develop and maintain data pipelines to support efficient information flow. More information about Clear Street is available at https://clearstreet.io.

Noise Labs is building tools that blend diverse online data and market insights to help users navigate uncertain times. Based in SoHo, New York City, the team is small (10 people), collaborative, and values thoughtful design and high-quality engineering. Remote work is possible. What You’ll Do Develop backend systems that power consumer features such as feeds, ranking algorithms, notifications, real-time interactions, and social elements. Build and maintain a codebase that supports both developer and automated agent confidence. Own core product services, data flows, and APIs. Design infrastructure where speed and accuracy matter, especially for settlement, pricing, and real-time financial transactions. Improve the development environment, including CI, testing, and observability. Requirements Skilled in using AI tools to speed up development. Strong judgment for balancing latency and accuracy in financial systems. Deep experience with TypeScript, relational databases, real-time communications, and event-driven data flows in finance. Comfortable working in a strict monorepo setup with clear service boundaries and conventions. Ability to independently debug and improve the development pipeline. Clear communicator for async updates, incident reviews, and team problem-solving. Bonus Points Experience with Effect-TS. Side projects, open source work, or previous startup experience. Compensation and Benefits The minimum full-time salary ranges from $160,000 to $210,000, in compliance with New York City's Pay Transparency Law. Full-time employees at Noise Labs are also eligible for additional compensation, including equity and benefits, based on the specific role.

Join our dynamic team at Grow Therapy as a Senior Backend Software Engineer. In this role, you will leverage your expertise in backend development to design, implement, and maintain robust and scalable applications. You will work collaboratively with cross-functional teams to drive innovation and enhance our platform, ensuring a seamless experience for our clients.