Senior Backend Engineering Manager - Recommendations

Match Group, Inc. is hiring a Senior Backend Engineering Manager to lead the Recommendations team in New York. This position guides a skilled group of engineers focused on building and improving recommendation algorithms and systems that support user experience across multiple platforms. Role overview The Senior Backend Engineering Manager takes responsibility for technical direction and team leadership. The work centers on backend technologies, with a strong emphasis on advancing recommendation systems that directly impact how users interact with Match Group’s products. What you will do Oversee and mentor backend engineers on the Recommendations team Drive the design and implementation of recommendation algorithms and supporting systems Focus on delivering solutions that improve user experience across Match Group platforms Requirements Experience leading backend engineering teams Background in developing recommendation systems or similar backend technologies Strong problem-solving skills and the ability to turn complex challenges into practical solutions

Join SoundCloud, a leading platform that enables artists and fans to connect and share their passion for music. Established in 2007, our artist-first approach empowers creators to develop their careers with innovative tools, services, and resources. With a catalog featuring over 400 million tracks from 40 million artists, the future of music is unfolding at SoundCloud. We are seeking a Senior Machine Learning Engineer to become an integral member of our Reco-Core team. This role presents an exciting opportunity to influence and steer the machine learning initiatives for one of SoundCloud's most essential product areas. You will collaborate closely with machine learning, data, and backend engineers to design, implement, and deploy models that facilitate music discovery for millions of users across our extensive audio catalog.Key Responsibilities:Create and deploy comprehensive machine learning solutions for recommendation systems, focusing on candidate generation, personalization, user and item modeling, and ranking algorithms.Oversee the entire machine learning lifecycle, from prototyping and evaluation to deploying scalable models and monitoring performance in production.Enhance and expand the foundation for ML engineering and MLOps within the Reco-Core team, establishing best practices and developing tools for rapid iteration.Collaborate with analysts and data scientists to convert research findings into production-ready systems.Work alongside fellow ML engineers to utilize shared infrastructure and collective expertise.

At SoundCloud, we empower artists and fans to connect and share through music. Established in 2007, our platform prioritizes artists, providing them with innovative tools and resources to enhance their careers. With a vast library of over 400 million tracks from 40 million artists, SoundCloud is revolutionizing the future of music.We are excited to invite a talented Senior Machine Learning Engineer to join our Recommendations Experience team. In this role, you will develop machine learning-powered features that enhance personalization, engagement, and overall satisfaction for our users. Although this is primarily a machine learning engineering position, you will be expected to leverage your strong technical skills across the full stack, extending from data pipelines to APIs and real-time serving.Your responsibilities will encompass the entire feature lifecycle: from identifying user needs in collaboration with Product and Design teams, to architecting data pipelines that process billions of events, and building and deploying production ML systems that balance performance, cost, and user experience. You will work with technologies such as BigQuery (handling trillion-row datasets), Airflow orchestration, BigTable for real-time serving, and APIs, while maintaining close collaboration with Product, Design, Engineering, and Platform teams.

Join Via, where we leverage technology to revolutionize global transportation. As a Senior Backend Engineer, you will play a pivotal role in our Platform team, contributing to innovative solutions that impact the daily commutes of thousands while minimizing environmental impact. Collaborate with a talented group of developers and DevOps engineers to build and maintain the cutting-edge infrastructure that powers our operations. This hybrid role requires you to be onsite in NYC 2-3 days a week, allowing for hands-on teamwork and collaboration.

Join dualentry as a Senior Backend Engineer, where you'll be at the forefront of developing cutting-edge backend solutions. In this role, you will collaborate with cross-functional teams to design, implement, and optimize robust server-side applications. Your expertise will be crucial in enhancing system performance, scalability, and security.

Senior Staff Backend EngineerLocation: Manhattan, New YorkOnsite | Full-timeJoin our dynamic team at mlabs, the innovative engine behind one of the most visited platforms in the digital asset industry. With a staggering ~$1B in daily volume, our cutting-edge technology stack is designed to manage low-latency, high-throughput, and consistent load at an unprecedented scale.The RoleAs a Senior Staff Backend Engineer, you will be a pivotal technical leader, ensuring the robustness and continuous advancement of our core backend systems. Your role involves a combination of high-level architectural oversight and hands-on execution, focusing on mitigating scaling challenges and designing resilient, fault-tolerant systems that can handle substantial workloads.What You’ll Do:Own & Execute: Take charge of writing and deploying production code for core services, leading the design and implementation of high-scale distributed systems.Architect for Scale: Make informed decisions that harmonize swift iteration with long-term system scalability and maintainability.Drive Initiatives: Spearhead projects that involve multiple services, including storage, compute, APIs, and blockchain infrastructure.Set the Standard: Create benchmarks for observability, reliability, and performance, while enhancing engineering quality through design reviews and RFCs.Technical Leadership: Serve as a technical anchor during critical incidents and mentor peers, sharing your depth of knowledge and clarity of thought.Optimize Velocity: Enhance the internal developer experience by refining tools, CI/CD pipelines, and service abstractions.

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 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.

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.

About Tru Identity Tru Identity is dedicated to revolutionizing the importation process of goods into the United States, aiming to simplify trade compliance within an industry valued at $4 trillion annually. Our innovative platform empowers companies worldwide to ensure compliance even before their shipments leave the port of origin, facilitating timely deliveries, maintaining sales momentum, and supporting international expansion. We assist importers, marketplaces, and logistics providers in automating the intricate regulatory compliance tasks that can hinder trade, ultimately saving time and resources while minimizing fraud and frustration. Although we are still in our early stages, our rapid growth is evidenced by the commercial and government clients we have already secured. By joining us at this pivotal moment, you will play a crucial role in our foundational team, enjoying significant ownership, the ability to influence product development, and the opportunity to contribute to a transformative venture from its inception. We thrive on agility, focus, and a culture that values perseverance and creative problem-solving.

Join our innovative Data Solutions team, where we're developing the core intelligence platform relied upon by prominent public and private sector organizations to investigate threats, monitor risks in real-time, and extract valuable insights from blockchain and related data on a large scale. We prioritize agility and efficiency, seeking engineers who are eager to take ownership, thrive in a fast-paced environment, and are motivated by the mission requirements of our clients to deliver significant real-world impact.In this position, you will:Design and spearhead the development of new platform features that support critical investigations and monitoring processes.Manage services that handle the ingestion, transformation, and delivery of hundreds of terabytes of data, ensuring service-level objectives (SLOs) for latency, freshness, and availability are met.Enhance the scalability, performance, and cost-effectiveness of our data plane and APIs.Elevate quality standards across reliability, security, and compliance for both cloud and on-premises setups.Mentor engineers across various teams and influence the technical strategy beyond your immediate group.Own and improve backend services that drive customer-facing APIs, usage and billing systems, alerting, and data observability.Lead both team and cross-team initiatives from start to finish: discovery, architecture, implementation, rollout, and post-launch analysis.Design event-driven and streaming workflows (e.g., Kafka) with robust data contracts and schema evolution.Promote operational excellence through SLOs, runbooks, on-call duties, incident reviews, and capacity planning for high-query-per-second systems.Collaborate with product, data engineering/science, and security teams to translate customer needs into sustainable systems.We seek candidates who possess:Extensive backend engineering experience in building cloud-hosted services and data pipelines, preferably on AWS or GCP (experience with both is a plus).Strong expertise in APIs, streaming systems, and distributed systems (e.g., microservices on Kubernetes).Proven track record of managing systems at scale (hundreds to thousands of requests per second; terabyte to petabyte data volumes).High level of judgment regarding reliability, security, and cost management, demonstrating measurable improvements.Capability to lead through influence—mentoring, conducting design reviews, and collaborating across teams.

Spotify is seeking a Data Science Manager to join the Content Insights group in New York, NY. This position supports the Music Editorial teams by developing analytics that guide how playlists and musical experiences are curated for a global audience of more than 700 million users. What you will do Lead analytics projects that inform strategic decisions for music curation and editorial planning. Work closely with Music Editorial teams to turn data insights into effective playlist and content strategies. Develop and improve analytics tools that influence the musical experiences offered to Spotify listeners worldwide. Impact This role contributes directly to the creativity of Spotify’s editorial teams and helps shape the listening experience for millions of users around the globe.

iCapital Network is hiring a Senior Backend Engineer at the Senior Vice President level in New York, NY. This position plays a key role in shaping the technology stack and contributes directly to the company’s mission of improving financial services for clients. Role overview This is a leadership role with a focus on backend engineering. The Senior Backend Engineer will influence the technical direction of the team and help guide architectural decisions for backend systems. What you will do Lead the design and development of scalable backend systems Collaborate with cross-functional teams to deliver solutions that enhance client experiences Guide technical decisions and help set the direction for backend architecture Location This role is based in New York, New York, United States.

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.

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.

Polymarket is a leading prediction market platform where users trade on the outcomes of real-world events. The platform covers a wide range of topics, from politics and economics to sports and culture. By removing centralized control, Polymarket aggregates opinions into transparent, market-based probabilities that reflect collective expectations. With rapid growth underway and a target of $21B in trades by 2025, the company aims to become a trusted source of truth in global media. The team is expanding to support this mission. Role overview The Senior Backend Engineer, Onchain, joins the Onchain Execution team. This group builds and maintains the systems that connect Polymarket products to the blockchain. The work includes relayers, transaction pipelines, RPC infrastructure, and settlement logic for every trade. The role involves solving technical problems at the intersection of distributed systems, blockchain protocols, and backend engineering at scale. What you will do Develop and maintain onchain execution infrastructure: Design and manage relayer systems, transaction pipelines, and settlement logic that support Polymarket's markets. Architect high-performance backend systems: Build scalable APIs and services to handle high transaction volumes and real-time data with low latency. Manage RPC and chain connectivity: Implement and optimize endpoints and integrations to keep Polymarket reliably connected to EVM networks. Enhance performance and reliability: Improve throughput and efficiency for onchain systems as transaction volumes grow. Strengthen security and fault tolerance: Apply best practices for secure, highly available distributed systems in onchain environments. Elevate code quality: Participate in code reviews and help maintain high engineering standards across the team. Requirements Extensive experience in backend software engineering, including clean code, strong database skills, and well-designed APIs. Deep understanding of EVM networks and blockchain protocols. Background in building or maintaining relayer systems, scalable RPC infrastructure, or contributing to core blockchain node software. This position is based in New York.

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.

OverviewJoin our dynamic team as a Senior Backend Engineer where you will architect, develop, and scale essential backend systems that support high-traffic consumer applications and internal platforms. You will take ownership of vital services and APIs, engage with high-throughput distributed architectures, and collaborate closely with product, machine learning, and engineering teams to deliver seamless, low-latency experiences for our users.About PhiaPhia has successfully secured $43M in funding from top-tier investors including Notable Capital, Khosla Ventures, and Kleiner Perkins to develop the AI alignment layer for the commerce sector. In less than a year, Phia’s consumer shopping assistant has amassed over one million users and established partnerships with over 6,200 retail brands, generating billions in annual gross merchandise volume. Each month, Phia contributes millions in sales for its partners and has achieved an impressive 11× revenue growth since its inception.As AI-driven vertical agents revolutionize various industries, Phia is at the forefront of transforming commerce from a fragmented and impersonal experience into a more intelligent, trustworthy, and user-centric journey. This trust serves as our competitive edge, positioning us as the comprehensive shopping destination for the next generation of consumers.Phia fosters a lean, high-ownership culture with a startup mentality. If you are eager to work in a fast-paced environment and tackle complex challenges within consumer AI and commerce, we invite you to join us.

About FLORAAt FLORA, we empower the new creative class with innovative tools that enhance their craft. Our intelligent platform utilizes cutting-edge AI models to facilitate creativity. With a small but dynamic team of approximately 20, we have successfully raised $52 million from notable investors such as Redpoint Ventures, Hanabi Capital, Menlo Ventures, Justin Kan, and Gabe Whaley (founder of MSCHF). Our clientele includes esteemed names in the creative industries, such as Pentagram, Lionsgate, and Nike.About the RoleWe are seeking a Senior Backend Engineer to be a pivotal part of FLORA's platform development. You will engage with our database layer, generation infrastructure, observability tools, and the services that enable a seamless real-time creative experience on a large scale.As part of our skilled team of full-stack engineers, you will leverage your extensive backend expertise to resolve our most challenging systems issues. You will take charge of complex projects, work closely with engineering leadership on architectural choices, and evolve with our backend team as we expand.Your ResponsibilitiesDesign and implement generation orchestration infrastructure capable of supporting significant scale.Enhance observability across our infrastructure to minimize failure rates and proactively identify issues before they affect users.Optimize our database layer through effective schema design, indexing strategies, and migrations as we grow.Collaborate on architectural decisions to facilitate the introduction of new features.Partner with the CTO, Product Engineering, and Intelligence Engineering teams to ensure a stable and high-performing foundation for features across all client platforms.Desired Qualifications:A minimum of 5 years of experience in building robust backend systems and operating services at scale.At least 3 years of in-depth experience with TypeScript, emphasizing type safety, error handling, and code organization.Demonstrated ability to analyze ambiguous problems and deliver well-structured solutions.Experience with queue-based architectures, including job scheduling, orchestration, and fault tolerance.Strong instincts for observability; experience in system instrumentation, dashboard creation, and utilizing data to enhance reliability.Excellent communication skills and a collaborative approach to technical decision-making.

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.