HiringCafe
Join our community

235 backend api security developer jobs at 167 companies in United States

1mo
Save
Mark Applied
Hide
Backend Software Engineer (API-focused)
Katy, Texas, United States
$110k-$120k/yr OnsiteFull Time
Off Duty Management
Off Duty Management: Private software and administrative services managing off-duty law-enforcement programs for agencies, officers, and community businesses.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Founding Backend Engineer
New York City, New York, United States
OnsiteFull Time
Hera
Hera: Private Medicare-covered care-management coordinating care for older adults and their families.
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
Job PostingView all
3w
Save
Mark Applied
Hide
Backend Developer
United States
RemoteFull Time
CelebriOS
CelebriOS: B2B SaaS helping businesses make decisions, streamline operations, and gain value from data.
3+ YOE3+ years backend experience; proficiency in Python/Java/Node.js/Go/C#; experience with REST/GraphQL, SQL, API security, Git, testing and deployment workflows.
Python, Java, Node.js, Go, C#, REST, GraphQL, SQL, Git, AWS, Azure, Google Cloud, Kubernetes, CI/CD, containers, message queues
Job PostingView all
1w
Save
Mark Applied
Hide
Backend Engineer
Denver or Seattle or Washington or San Francisco or Los Angeles or Arvada or San Francisco or Nashville or Denver or Santa Fe or New Orleans or San Diego or Bozeman or New York City
$120k-$180k/yr HybridFull Time
Quindar
Quindar: Automation First. Mission Ready. Mission management software delivering a common operating picture, system-of-systems integration, and resiliency across commercial and government space missions.
3+ YOERequires Python backend development, AWS, GraphQL, Docker, Terraform, APIs, Kubernetes, Git, a computer science bachelor's degree, and 3+ years of experience; U.S. person status and security clearance eligibility required.
Python, AWS, GraphQL, Docker, Terraform, OpenAI, Anthropic, AskSage, Kubernetes, AWS Lambda, Amazon ECS, Amazon EKS, Amazon CloudWatch, Amazon S3, Amazon EFS, Amazon EBS, Amazon EC2, Amazon RDS, Git, GitHub, GitLab, CI/CD
Job PostingView all
1mo
Save
Mark Applied
Hide
GoLang Backend Developer
Mason or Woodland Hills
OnsiteContract
Delan Associates, Inc
Delan Associates, Inc: Professional services and engineering consulting firm.
12+ YOEStrong Go (Golang) backend development with microservices, RESTful APIs, Docker/Kubernetes, SQL/NoSQL, cloud platforms, CI/CD, unit testing, distributed systems, messaging, IaC (preferred), and security best practices.
Go (Golang), Docker, Kubernetes, PostgreSQL, MySQL, MongoDB, DynamoDB, AWS, Azure, GCP, Git, CI/CD, Terraform, Helm, Kafka, RabbitMQ
Job PostingView all
2mo
Save
Mark Applied
Hide
Backend Engineer
New York, New York, United States
RemoteFull Time
Themis
Themis: Private SaaS provider of collaborative governance, risk, and compliance software for banks, credit unions, and fintechs.
Experience building production applications with Ruby on Rails, PostgreSQL, and Redis; background job and API design experience; strong testing, security, reliability, and communication skills; ability to own backend systems end-to-end.
Ruby on Rails, PostgreSQL, Redis, AWS, GCP, Azure
Job PostingView all
3mo
Save
Mark Applied
Hide
Senior Backend Engineer
Cambridge or Pune
$140k-$180k/yr OnsiteFull Time
Blitzy
Blitzy: Private AI software platform that autonomously builds and modernizes enterprise software for development teams.
5+ YOESenior backend engineer with 5–8 years of software engineering, solutions architecture, or technical leadership experience; strong enterprise development and SDLC knowledge.
AWS, GCP, Azure, Docker, Kubernetes, API design, CI/CD, Security protocols
Job PostingView all
1mo
Save
Mark Applied
Hide
Backend Developer (US)
United States
RemoteFull Time
Bjak
Bjak: Southeast Asia's leading online insurance platform and fintech.
Experienced backend engineer with production systems experience, strong API, database, auth, queues, reliability and security skills; fintech/payments experience a plus.
Job PostingView all
1mo
Save
Mark Applied
Hide
Backend Engineer (Integrations)
Carmel, Indiana, United States
HybridFull Time
Bioscope AI
Bioscope AI: Private health-tech providing AI clinical decision support from genomic and patient data for U.S. primary-care physicians.
Experience building and owning integrations with EHRs and third-party clinical APIs, strong backend engineering fundamentals, security and reliability focus, clear communication, and self-directed execution.
Python, FastAPI, AWS, LLM APIs, EHR, Elation, Athenahealth, Cerbo, Practice Better, FHIR, HL7, LOINC, ICD, SNOMED
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Backend Engineer
Columbia, Maryland, United States
$100k-$120k/yr HybridFull Time
Quidient
Quidient: Spatial AI specializing in Generalized Scene Reconstruction software.
4+ YOEBachelor's or equivalent,4+ years building backend systems/APIs,strong AWS,Docker,Python or Node.js,CI/CD and infrastructure-as-code experience,ability to meet security vetting.
AWS Lambda, API Gateway, Amazon S3, Amazon EC2, ECS, EKS, CloudFormation, Docker, Python, Node.js, CI/CD, OAuth, OpenID
Job PostingView all
1mo
Save
Mark Applied
Hide
Back End Developer
Offutt AFB, Nebraska, United States
OnsiteFull Time
Constellation West
Constellation West: A service-disabled veteran-owned women-owned small business providing cybersecurity and information solutions to federal agencies.
5+ YOE5+ years backend development and data analysis experience, experience with APIs, web development tools, DoD data security, cloud environments, and stakeholder communication.
JavaScript, Python, JSON, JSONP, REST, SQL, Notepad++, SharePoint Designer, Visual Studio, XSLT, XSL-FO, Java, Perl, Node.js, Microsoft O365, Microsoft SharePoint, Microsoft Word, Microsoft PowerPoint, Microsoft Outlook, Microsoft Excel
Job PostingView all
1mo
Save
Mark Applied
Hide
Sr. Backend Engineer
United States
$160k-$185k/yr RemoteFull Time
Sphinx Defense
Sphinx Defense: Private aerospace software building secure satellite-operations and ground-data systems for government and commercial space missions.
5+ YOE5+ years software engineering experience; strong with Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform; cloud and API/backend architecture, security mindset, mentorship and customer interaction skills.
Python, FastAPI, Postgres, AWS, Docker, Kubernetes, Terraform
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Backend Engineer
Mountain View, California, United States
$190k-$240k/yr HybridFull Time
Matternet
MatternetNASDAQ: MATT: Autonomous drone delivery serving healthcare, logistics, restaurant, and retail customers in urban and suburban markets.
6+ YOE6+ years building and operating production backend systems; strong Node.js/TypeScript skills, API design (GraphQL/REST), relational databases, cloud, containers, CI/CD, reliability, monitoring, and security.
Node.js, TypeScript, GraphQL, NestJS, Next.js, React, Kafka, MQTT
Job PostingView all
1mo
Save
Mark Applied
Hide
Backend Software Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Blue Ridge Dynamics
Blue Ridge Dynamics: Software development and engineering services serving federal government and commercial businesses with custom digital solutions.
2+ YOE2+ years backend development experience with Node.js/TypeScript, RESTful APIs, relational databases, Git, testing, and secure coding; strong problem-solving and communication skills.
Node.js, TypeScript, PostgreSQL, JavaScript, NestJS, Fastify, Express, MySQL, Git, Docker, Kubernetes, AWS, Azure, Google Cloud, OAuth 2.0, OpenID Connect, JWT, Drizzle ORM, CI/CD
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Backend Engineer
United States
$120k-$190k/yr RemoteFull Time
Nametag
Nametag: Private U.S. identity verification and account protection software serving enterprises and their employees and customers.
5+ YOE5+ years building production backend systems; strong experience with Node.js/Go/Python/Java, API and database design (PostgreSQL preferred), AWS, authentication/authorization, security-minded engineering; US work authorization required.
Node.js, Go, Python, Java, PostgreSQL, AWS, React, Vue, OAuth, SAML, SSO, JWTs
Job PostingView all
1mo
Save
Mark Applied
Hide
1757 BACKEND SOFTWARE DEVELOPER
United States
RemoteFull Time
Software Estratégico
Software Estratégico: Colombian technology consulting firm delivering custom software and digital and cognitive transformation solutions to business clients.
Senior-level backend developer with strong TypeScript, PostgreSQL, serverless and AWS experience, CI/CD, API development, security and production deployment skills; intermediate+ English required.
TypeScript, PostgreSQL, AWS Lambda, API Gateway, Amazon S3, Amazon RDS, Amazon SQS, AWS IAM, CI/CD, iOS, Machine Learning
Job PostingView all
1mo
Save
Mark Applied
Hide
Backend Software Developer
Wayne, Pennsylvania, United States
HybridFull Time
PowerPay
PowerPay: AI-powered point-of-sale financing platform for home improvement and elective healthcare, serving consumers, contractors, and providers.
Experience building backend services and APIs using Ruby/Rails, Python or NodeJS; familiarity with databases, integrations (SFTP/FTP, OAuth2, OIDC), security (TLS, SSH), Linux/Docker, testing and API tools.
Ruby, Ruby on Rails, Python, NodeJS, SFTP, FTP, OAuth2, OIDC, TLS, SSH, Postgresql, Mysql, MariaDB, rSpec, Postman, Linux, Docker, ReactJS, NewRelic, AWS, CI/CD
Job PostingView all
3mo
Save
Mark Applied
Hide
Senior Engineer, Backend
New York City, New York, United States
$160k-$250k/yr OnsiteFull Time
Linero
Linero: AI-native software building operational infrastructure for AI labs, defense primes, and semiconductor giants.
5+ YOE5+ years backend engineering; systems design; Python/Go/Java; API design; distributed systems; multi-tenant data isolation; security; NYC relocation.
Python, Go, Java
Job PostingView all
3mo
Save
Mark Applied
Hide
Backend Senior Software Engineer, Identity
United States
$195k-$229k/yr RemoteFull Time
Vanta
Vanta: Private software that helps businesses automate compliance, manage risk, and prove security trust.
8+ YOE8+ years backend development; strong knowledge of authentication (OIDC, SAML) and identity federation (SSO) or RBAC; experience building scalable platform services; strong data modeling; distributed systems and security focus; mentorship and cross-team collaboration; openness to AI tooling.
Backend, API design, OIDC, SAML, RBAC, Security, Platform services, Distributed systems, Data modeling
Job PostingView all
1w
Save
Mark Applied
Hide
Staff MaaS Backend Engineer
San Jose or Austin
RemoteFull Time
Bitdeer
BitdeerThe Nasdaq Stock Market LLC: BTDR: Public Singaporean Bitcoin mining and AI cloud infrastructure serving enterprises with computing, datacenters, and mining solutions.
8+ YOERequires 8+ years backend experience, including 3+ years owning high-traffic multi-tenant APIs. Deep Go, Kubernetes, distributed systems, migrations, observability, LLM serving, security, and billing expertise required.
Go, Kubernetes, Envoy, PostgreSQL, Redis, Kafka, OpenTelemetry, OAuth, OpenAI, Anthropic
Job PostingView all

Explore Jobs

Expand Your Job Search