2,088 backend api engineer jobs at 1,150 companies in United States
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Senior Backend API Engineer
Linthicum, Maryland, United States
OnsiteFull Time
7+ YOEActive TS/SCI with polygraph required; 7+ years backend development experience with Python, RESTful APIs, Django/Flask, Docker, MariaDB/MongoDB; experience with Git, Jira, Confluence; strong troubleshooting and communication skills.
Python, Django, Flask, MariaDB, MongoDB, JSON, XML, Docker, Git, Jira, Confluence, AWS
1w
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Backend API Developer
Arlington, Virginia, United States
$119k-$161k/yr OnsiteFull Time
8+ YOERequires a bachelor's degree in computer science or engineering or equivalent, 8+ years of relevant experience, U.S. citizenship, and Public Trust eligibility. Experience with scalable services, streaming, authorization, containers, cloud, and production operations.
REST, Kafka, Amazon Managed Streaming for Apache Kafka (MSK), Event Hubs, API gateways, service meshes, AWS Lambda, Azure Functions, WebSocket, server-sent events
1mo
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Backend API & Infra Engineer
United States
RemoteFull Time
Deep backend experience with Laravel and AWS, database optimization (MySQL/RDS, Redis/ElastiCache, InfluxDB), Elastic Stack/Grafana/Logstash, IaC (Pulumi/Terraform), and video/AI experience.
Laravel, AWS, MySQL, RDS, Redis, ElastiCache, InfluxDB, Elastic Stack, Grafana, Logstash, Pulumi, Terraform, Node.js, React
1mo
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API Backend Developer
Maryland, United States
OnsiteFull Time
6+ YOE6+ years developing enterprise applications with Python, Django, GraphQL, REST APIs, and relational databases; experience with AI extraction from scientific publications and accessibility (Section 508/WCAG).
Python, Django, GraphQL, REST APIs, SQL Server, MySQL, PostgreSQL, Git, GitHub, Docker, Linux, HTML, XHTML, CSS
3mo
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Backend Engineer
Beaverton, Oregon, United States
RemoteFull Time
5+ YOE5+ years in Go with REST API design; PostgreSQL optimization; third-party integrations; startup experience; strong communication; SaaS backend architecture.
Go, PostgreSQL, REST APIs, gRPC, TypeScript, SaaS, Observability, Distributed Systems
1mo
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Backend API Engineer Technical Lead II
Charlotte or Malvern
HybridFull Time
8+ YOE8+ years related experience, 3+ years Node.js, proficient in TypeScript and NestJS, experience with AWS, CI/CD, GitHub Actions, REST/Spring Boot/Java a plus; undergraduate degree or equivalent; strong communication and mentoring skills.
Node.js, Typescript, NestJS, Visual Studio Code, RESTful Services, Spring Boot, Java, CI/CD Pipeline, Github Actions, Git/GitHub, JIRA, AWS ECS Fargate, AWS EKS, AWS Lambda, XCode, SWIFT, Android Studio
1w
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Backend Engineer
London or New York City or Paris
HybridFull Time
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
3mo
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Backend Engineer
San Francisco, California, United States
$190k-$230k/yr OnsiteFull Time
3+ YOE3+ years backend or software engineering; API design; backend architecture; Node.js/Python/Go; PostgreSQL/MySQL; scalable systems; customer-focused.
Node.js, Python, Go, PostgreSQL, MySQL, TypeScript, Temporal, Pulsar
1mo
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Senior Backend Engineer
Colorado Springs, Colorado, United States
$160k-$185k/yr HybridFull Time
5+ YOE5+ years software engineering experience; strong Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; cloud architecture, API/backend development, security focus, mentorship and customer integration skills.
Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform
1mo
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Backend Software Engineer (API-focused)
Katy, Texas, United States
$110k-$120k/yr OnsiteFull Time
3+ YOE3+ years backend experience with Python and FastAPI, PostgreSQL, Celery, Kubernetes/AKS, pytest, OAuth2/JWT; experience with API design, security, and CI/CD.
FastAPI, PostgreSQL, Celery, AKS, Azure, Pydantic, Alembic, OAuth2, JWT, pytest, Git, Docker, OpenAPI/Swagger, Redis, RabbitMQ, Prometheus, Grafana, OpenTelemetry, Terraform, Helm, Kubernetes, Azure Key Vault, Azure Container Registry, Azure Monitor / App Insights
3w
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Sr. II Backend Engineer, Mobile API
San Mateo, California, United States
$176k-$220k/yr HybridFull Time
Extensive backend development experience with PHP, RESTful or GraphQL APIs, relational databases, distributed systems, cloud platforms, containers, CI/CD, production monitoring, and cross-team technical leadership.
PHP, Vue, TypeScript, MySQL, PostgreSQL, RabbitMQ, Valkey, Redis, Kafka, Firebase Cloud Messaging, APNs, Docker, Kubernetes, GitHub Actions, JWT, RESTful, GraphQL, iOS, Android, CI/CD
2mo
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Backend Developer (Data Layer / API Specialist)
United States
$75k-$110k/yr RemoteFull Time
Strong backend development experience with Java/Python/Node.js/Go, REST/GraphQL APIs, SQL/NoSQL databases, data pipelines/ETL, cloud platforms (AWS/Azure/GCP), CI/CD, containerization, and observability.
Java, Python, Node.js, Go, REST, GraphQL, PostgreSQL, MySQL, MongoDB, DynamoDB, OpenAPI, Swagger, AWS, Azure, GCP, ETL/ELT, CI/CD, Git, Docker, Kubernetes, Kafka, Kinesis, Pub/Sub
3mo
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Backend Engineer
United States
$115k-$140k/yr RemoteFull Time
3+ YOERequires 3+ years of backend engineering experience building user-facing applications and APIs, plus proactive communication, curiosity, and self-motivation. US work authorization required.
Python, Django, Django REST framework, PostgreSQL, Docker, Kubernetes (K8s), Linux, Alpine, AWS, Amazon EC2, Amazon S3, Amazon RDS, Amazon CloudFront, Stripe, Google APIs, Apple APIs
2mo
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Founding Backend Engineer
New York City, New York, United States
OnsiteFull Time
Experienced backend engineer with strong systems design, cloud and database experience, API and SDK development, security/compliance awareness, and ownership in early-stage environments.
AWS, SQL, APIs, SDKs
2mo
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Senior Backend Engineer
San Francisco, California, United States
OnsiteFull Time
5+ YOE5+ years backend experience; strong Node.js/TypeScript and Python skills; strong SQL and relational/database/ETL experience; API and service design; experience productionizing models and working with data science and risk teams.
Node.js, TypeScript, Python, SQL, Postgres, Snowflake, AWS
2w
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Backend Engineer
Los Angeles or Beverly Hills or New York City
$145k-$180k/yr HybridFull Time
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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Backend Software Engineer, API Multicloud
San Francisco, California, United States
$293k-$385k/yr HybridFull Time
7+ YOE7+ years engineering experience; proficiency in backend languages (Python, Go, Rust, Typescript); experience with distributed systems, cloud services, developer tools, and production service ownership; strong communication and system-design skills.
Python, Go, Rust, Typescript, AWS, OpenAI Responses API, Codex
3w
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Backend Engineer
Knoxville, Tennessee, United States
RemoteFull Time
3+ YOERequires 3+ years of backend software engineering experience, strong C# and .NET proficiency, RESTful API development, relational databases, cloud platforms, CI/CD, and end-to-end feature ownership.
C#, .NET, React, Next.js, RESTful APIs, SQL Server, CosmosDB, Azure, React Native, Redis, Datadog, Serilog, Application Insights, Microsoft SQL Server
3mo
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Senior Backend Developer
Vienna, Virginia, United States
OnsiteFull Time
5+ YOEBachelor's in CS/engineering/GIS; 5+ years backend experience; Python, Node.js, Java; REST APIs; ArcGIS Enterprise; containerized environments; TS/SCI eligibility.
Python, JavaScript/Node.js, Java, ArcGIS Enterprise, Docker, Kubernetes, REST API, PostgreSQL, PostGIS, SQL Server
3mo
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Backend Engineer
Somerville, Massachusetts, United States
$140k-$170k/yr OnsiteFull Time
Strong object-oriented Python; API design in production; collaborate in engineering; build and scale systems; improve reliability and performance.
Python, APIs, Object-Oriented Programming
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