967 backend software engineer jobs at 496 companies in Lake Success, NY

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Staff Backend Software Engineer
Edinburgh or United Kingdom or New York City or Salt Lake City or London or Pune or Dubai or Geneva or Singapore or São Paulo
RemoteFull Time
Addepar
Addepar: Provides portfolio data aggregation, analytics, and reporting.
Extensive backend software development experience; expert software design and API knowledge; distributed systems experience; Java, SQL, AWS, and AI engineering experience; mentoring and technical leadership ability.
Java, SQL, AWS, Elasticsearch, REST
3mo
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Backend Software Engineer - Saga
New York or Seattle or Arlington or Rosslyn
OnsiteFull Time
Rune Technologies
Rune Technologies: Logistics wins wars. Rune wins logistics.
4+ YOE4+ years backend software engineering; experience with GenAI systems, vector databases, LLM integrations, and evaluation harnesses; strong problem solving and ownership.
GenAI, vector databases, LLM integrations, RAG architectures, tool-call frameworks, production-grade software
2mo
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Senior Backend Software Engineer
New York City or San Francisco
$100k-$200k/yr OnsiteFull Time
Alpaca Health
Alpaca Health: Tech-enabled management services organization for autism care providers.
Senior backend engineer with strong system-design and ownership; builds integrations, billing/payments, data pipelines, and AI/LLM infrastructure. Experience in operationally complex domains (healthcare, fintech, insurance) or early-stage startups preferred.
Candid, Silna, Availity, HubSpot, LLM
3w
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Software Engineer Backend (Java)
New York, New York, United States
$180k-$220k/yr OnsiteFull Time
CLEAR
CLEARNYSE: YOU: Provides biometric identity verification and expedited travel security services.
3+ YOE3+ years backend development in Java, experience with cloud services, containerization, CI/CD, and strong communication and mentoring skills.
Java, Kafka, Postgres, AWS, Docker, Kubernetes, Github, Argo, Jenkins
1mo
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Senior Backend Software Engineer
New York City, New York, United States
$190k-$215k/yr HybridFull Time
Tennr
Tennr: Private healthcare technology providing an agentic patient-orchestration platform for healthcare providers.
5+ YOE5+ years backend development experience with strong JavaScript and TypeScript skills; experience building scalable services, workflow automation, data pipelines, and integrating ML into production.
JavaScript, TypeScript, machine learning
1w
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Backend Engineer
London or New York City or Paris
HybridFull Time
SeedLegals
SeedLegals: Automated platform for startup fundraising and legal document management.
Mid-level backend engineering role requiring Kotlin and Spring experience, high-performance API development, software engineering best practices, test-driven development, code review, and full lifecycle ownership.
Kotlin, Spring, Claude, LLMs, JVM, APIs
1w
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Senior Software Engineer, Backend
New York City, New York, United States
$200k-$225k/yr OnsiteFull Time
Posh
Posh: Social platform for discovering and ticketing real-world events, serving organizers and attendees.
5+ YOERequires 5+ years of backend engineering experience, production systems expertise, and proficiency in APIs, distributed systems, event-driven architecture, data modeling, and cloud infrastructure.
Java, Node.js, PostgreSQL, MongoDB, AWS, Terraform, GitHub
1w
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Senior Backend Software Engineer
New York City or San Francisco or Los Angeles
$165k-$220k/yr HybridFull Time
Regard
Regard: Private healthcare AI helping health systems diagnose patients and generate complete clinical documentation.
6+ YOEBachelor's degree in computer science or equivalent experience, 6+ years of software development, Python or Go proficiency, data-intensive application experience, on-call availability, and practical AI coding tool experience.
Python, Go, PostgreSQL, Redis, Celery, TypeScript, React, AWS, Docker, Kubernetes, GitLab CI/CD, Datadog, OpenAI, Anthropic, FHIR, ICD-10, SNOMED, LOINC, RxNorm, Cursor, Claude Code, Codex, EHR, EMR
1w
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Software Engineer II, Backend
United States or New York City
$145k-$187k/yr RemoteFull Time
Bubble
Bubble: AI-powered no-code app platform for founders, businesses, and teams building web and mobile applications.
2+ YOERequires 2+ years of software engineering experience, strong coding and problem-solving skills, scalable distributed systems understanding, and willingness to learn Node.js, Rust, PostgreSQL, and Terraform.
Node.js, Rust, PostgreSQL, Terraform, AWS, TypeScript, SolidJS, Redis, Postgres, TimescaleDB, ECS, RDS, ElastiCache
2w
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Senior Software Backend Engineer - Market Pricing
New York City or San Francisco or Salt Lake City or Kraków or United Kingdom
$167k-$225k/yr HybridContract
Pave
Pave: Private AI compensation-management software serving businesses with benchmarking, pay planning, and total-rewards tools.
5+ YOERequires 5+ years of backend engineering experience, scalable systems design, performance and reliability expertise, strong judgment, and ability to lead ambiguous projects and mentor engineers.
1mo
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Backend Engineer
New York, New York, United States
HybridFull Time
Chariot
Chariot: US fintech helping nonprofits receive and process donor-advised fund gifts and grant payments.
4+ YOE4+ years software development experience, 2+ years backend development, proficiency with Go, Node, Docker, Terraform, Kubernetes, Postgres, REST and gRPC; bachelor’s in a technical field preferred.
Go, Node, Docker, Terraform, Kubernetes, Postgres, REST APIs, gRPC, AWS
1w
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Software Engineer, Backend Engineer- Credit Coverage
New York City, New York, United States
$157k-$235k/yr HybridFull Time
Stripe
Stripe: Financial infrastructure platform for online businesses and enterprises.
2+ YOEBachelor's degree in computer science, software engineering, or related field plus 2 years' software development experience. Requires Ruby, Java, Scala, SQL, AWS, gRPC, GraphQL, MongoDB, Spark, Hadoop, Kafka, Grafana, and Prometheus.
Ruby, Java, Scala, SQL, gRPC, GraphQL, AWS, MongoDB, Spark, Hadoop, Kafka, Grafana, Prometheus, macOS, Unix
2mo
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Staff Software Engineer, Backend
New York City or Canada
$241k-$284k/yr HybridFull Time
Genius AI
Genius AI: Genius AI is a private software providing booking, payments, and administrative tools to local service businesses.
7+ YOE7+ years engineering experience, system design ownership, strong Kotlin backend skills, AWS and Kubernetes familiarity, experience integrating AI models/LLMs, mentoring and technical leadership.
Kotlin, TypeScript, AWS, Kubernetes, Claude Code, GitHub Copilot, LLMs
3w
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Senior Backend Software Engineer - Apple Sports
New York City, New York, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designing and manufacturing consumer electronics, software, and digital services.
Expert backend engineering role developing reliable, scalable solutions for processing and displaying real-time sports data across Apple Sports and Apple TV.
1w
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Backend Engineer
Los Angeles or Beverly Hills or New York City
$145k-$180k/yr HybridFull Time
Genius
Genius: US digital music-media platform where artists, contributors, and fans annotate lyrics and explore music knowledge.
4+ YOEAt least 4 years of backend or data engineering experience; proficiency in Ruby on Rails, databases, ELT pipelines, Apache Airflow, APIs, and scalable systems. Computer Science degree preferred, not required.
Ruby on Rails, PostgreSQL, ClickHouse, BigQuery, Apache Airflow
2mo
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Staff Software Engineer, Backend
New York City, New York, United States
$241k-$284k/yr HybridFull Time
Genius AI
Genius AI: Private software providing booking, payments, and administrative tools to local service businesses.
7+ YOERequires 7+ years of professional engineering experience, deep Kotlin expertise, backend architecture and system design experience, production LLM integration, and proficiency with AWS and Kubernetes.
Kotlin, TypeScript, AWS, Kubernetes, LLMs
2mo
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Backend Engineer
Giv'atayim or Tel Aviv or New York City or London or Singapore or São Paulo
HybridFull Time
Personetics
Personetics: AI-powered personalized banking and financial guidance platform.
5+ YOE5+ years backend/platform engineering experience, 5+ years with Java, Kubernetes experience, SQL and relational DB knowledge, Python familiarity, leadership and platform design experience, practical experience with AI dev tools (e.g., Cursor).
Java, Python, Kubernetes, SQL, Cursor, CI/CD, Azure, AWS
4w
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Backend Software Engineer - Assistant Vice President
Greenwich or New York City
$130k-$170k/yr HybridFull Time
iCapital
iCapital: Financial technology platform powering the global alternative investment marketplace.
6+ YOEDegree in software engineering,6+ years web application development,experience with Python/Scala/Node.js,knowledge of relational/NoSQL modeling,testing and SSO familiarity.
Scala, Ruby, Node.js, Python, FastAPI, ZIO, Scala Test, ZIO Test, PyTest
1mo
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Backend Engineer
New York City, New York, United States
$125k-$165k/yr OnsiteFull Time
Discernis
Discernis: AI-native legal intelligence software for law firms and legal teams, automating document review and investigations.
Professional Python backend experience; familiarity with Flask, relational databases, background processing, and search systems; focus on reliability, performance, and secure design.
Python 3.11, Flask, SQLAlchemy, PostgreSQL, Elasticsearch, OpenSearch, Redis, Docker, Celery
2w
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Backend Engineer
New York City, New York, United States
OnsiteFull Time
Portra
Portra: Insurance infrastructure providing rules-driven quote-bind-issue systems for carriers, MGAs, brokers, and program administrators.
2+ YOERequires 2+ years building production backend systems, a master's degree or equivalent experience, Python, SQL and NoSQL, cloud deployment, Docker, Kubernetes, APIs, and CI/CD experience.
Python, AWS, GCP, Docker, Kubernetes, SQL, NoSQL, CI/CD, Flask