3,590 backend engineer sr jobs at 1,661 companies in United States
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Sr Backend Engineer
New York, New York, United States
$185k-$215k/yrHybridFull Time
Slang AI: AI-powered voice platform for restaurant guest communications and reservations.
5+ YOE5+ years backend experience, strong OO fundamentals, experience with REST/GraphQL, containerization and cloud (GCP), observability, and mentoring other engineers; Kotlin and telephony/voice AI experience preferred.
Quizlet: Digital learning platform providing study tools and flashcards.
4+ YOE4+ years backend or data engineering experience; strong SQL and data warehouse experience; proficiency in Python/Java/Scala; Elasticsearch/OpenSearch experience; experience building production data pipelines and backend services.
Sunbit: Financial technology platform for point-of-sale consumer financing.
5+ YOE5+ years software engineering; Bachelor’s in CS or related; hands-on Kotlin, Java, or Scala; Spring Framework; relational and non-relational DBs (MySQL, MongoDB); microservices and message queues (Kafka, SQS, RabbitMQ); strong testing and observability.
Kotlin, Java, Scala, Spring Framework, MySQL, MongoDB, Kafka, SQS, RabbitMQ
Concora Credit: Provides credit card and financing solutions for non-prime consumers.
8+ YOE8+ years backend engineering experience with C#, .NET, APIs, databases, CI/CD, and cloud (AWS/Azure); strong testing, design, and communication skills.
C#, ASP/ASP.Net, .NET Core, RESTful API, JSON, jQuery, Python, Microsoft SQL Server, No-SQL databases, React, Drupal/PHP, CMS, Azure Service Bus, Azure Event Grid, Azure Functions, Data Lake, AWS, Azure, Azure DevOps Pipeline, Terraform, TeamCity, Jenkins, Concourse, Hudson, Bamboo
Clinical Ink: Clinical trial software for electronic data collection and management.
Strong backend experience with Python, FastAPI, SQLAlchemy/Postgres, API design, observability, infra/IaC (Terraform/AWS), production ownership, mentoring, and familiarity with healthcare/regulatory domains.
Python, FastAPI, SQLAlchemy, Postgres, OAuth, webhooks, Terraform, AWS, Snowflake, dbt, Flutter, FHIR, Withings, Polar, Whoop, Fitbit, Apple Health, Health Connect
CrowdStrikeNASDAQ: CRWD: Provides cloud-native endpoint protection and cybersecurity services.
Design, develop, test, and maintain large-scale backend services; ensure scalability and reliability; collaborate with multiple teams; implement features for Kestrel platform using Go, Python, and modern tech.
FlowPlay: Develops and publishes social casino games and virtual worlds.
5+ YOE5+ years Java backend experience, proficiency with MySQL, EMR not referenced, familiarity with cloud (AWS or GCP), RESTful API design, version control (SVN/Git); Bachelor's in CS or related preferred.
Sphere Labs: Building compliance-native infrastructure for global cross-border stablecoin payments.
6+ YOE6+ years software engineering experience; experience taking products to production; familiarity or willingness to learn TypeScript, GCS, PostgreSQL; strong problem-solving and communication skills.
Fundamental: An AI building foundation models and tooling to improve enterprise decision-making.
5+ YOE5+ years backend engineering experience with strong Python skills, production distributed systems experience, concurrency and workflow orchestration knowledge, and ability to ship reproducible, observable production systems.
New York or Sunnyvale or Berkeley Heights or Alpharetta
$128k-$216k/yrOnsiteFull Time
FiservNew York Stock Exchange: FI: Provides financial technology and payment processing services to institutions.
10+ YOEBachelor's or equivalent,10+ years software engineering,Java/JVM and Spring Boot expertise,cloud-native/Kubernetes and Terraform experience,SQL/NoSQL schema design,REST API architecture,mentorship and on-call experience.
Java, Spring Boot, Kubernetes, Terraform, PostgreSQL, MySQL, Google Cloud Platform (GCP), GitHub Copilot, Cursor, Claude, ChatGPT
Collective Health: Cloud platform for managing employer-sponsored health benefits.
10+ YOE10+ years backend engineering experience with Java and Spring Cloud, microservices and integration platform experience (Mulesoft), AI tooling familiarity, cloud (AWS/GCP), SQL/PostgreSQL, system development, and strong communication and leadership skills.
AtlassianNASDAQ: TEAM: Develops software for team collaboration and project management.
Expert backend engineering to design and lead an AI proxy platform, ensure high availability, cost-efficiency, security integration, and mentor engineering teams.
Amari: AI agents automating document-heavy workflows for the logistics industry.
4+ YOE4–6 years backend software engineering in a high-growth startup; ownership of backend systems; strong architectural judgment; in-person SF collaboration.
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
5+ YOEBachelor's degree preferred; 5+ years building Java backend servers, web service APIs, databases, and Linux systems. Requires microservices, Kubernetes, cloud, and video streaming experience.
ProArch: Provides managed cybersecurity, cloud, and data engineering services.
5+ YOEBS in Computer Science or related,5+ years software development,SDLC/STLC and agile experience,troubleshooting skills,experience with COTS integration,SSO/IAM and application security.
COGNOS, CRM, IVR, Oracle E-Business Suite, IBM DataStage, IBM Watson Analytics, Salesforce, PEGA, MuleSoft, FileNet, SharePoint, Oracle SOA, Pitney Bowes - EngageOne, EDIFECS - XEngine, SSO, IAM
Clera: AI talent agent matching professionals with high-growth startup roles
5+ YOE5+ years backend experience, proficiency in Python, FastAPI, SQL, testing with pytest, experience designing data architectures and shipping production systems, familiarity with AI-assisted coding tools.
Python, FastAPI, pytest, Claude Code, Codex, OpenCode, SQL, AWS