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Senior Api Developer Jobs in Washington (NOW HIRING)

The ideal candidate will have extensive experience in Appian architecture, API development, and ... Appian Developer in a senior/lead role for production applications * 1+ years of experience ...

The ideal candidate will have extensive experience in Appian architecture, API development, and ... Appian Developer in a senior/lead role for production applications * 1+ years of experience ...

As a Senior Integration Developer, you will work with our growing DevSecOps practice developing ... Experience developing API Management solutions and micro-services Preferred: * Certifications:

OutSystems Senior Developer

Washington, DC ยท On-site

$108K - $148K/yr

Damco Solutions is seeking an OutSystems Senior Developer with extensive experience in OutSystems ... SOAP API services in OutSystems (Expose and Consume). โ€ข Experience in using various project ...

SR. PYTHON DEVELOPER

Reston, VA ยท On-site

$126K - $170K/yr

Job Title: SR. PYTHON DEVELOPER Location: Reston,VA Duration: 12+ Months Visa: USC, GC, H1B and EAD ... Proficient in API Integration. * Experience in Microservices architecture is helpful Agile Scrum

Python Developer

Reston, VA ยท On-site

$52.25 - $72/hr

Position Summary The Senior Python Developer will design, develop, test, and implement cloud native ... Experience implementing API versioning, request validation, and structured error handling

Sr Java Developer

Mclean, VA ยท On-site

$58.75 - $75/hr

Sr Java Developer McLean, VA - Hybrid Federal background Checks Min 10+ yrs genuine exp. Candidate ... REST API Web Services, GraphQL API query language. * Spring Core, MVC, Spring Boot, Spring Security ...

SR. SERVICENOW DEVELOPER

Mclean, VA ยท On-site

$55 - $75.50/hr

W2 Senior Developer will be part of the Enterprise Risk Management Technologies Team and will be ... Build system integrations using Integration Hub and REST API. * Execute functional component ...

Senior Software Developer

Herndon, VA ยท On-site

$56 - $74/hr

Senior Software Developer???? National Capital Region???? TS/SCI Polygraph | Hybrid (Remote with ... REST-style Web API platformsClient-side development experience using Vue.js, JavaScript, Angular 4, ...

Senior Java Developer

Washington, DC ยท On-site

$64.75 - $82.75/hr

The Senior JAVA Developer position requires in-depth knowledge of JAVA and J2EEbackground using Spring Technologies framework, design, and architectural styles /API's (REST/RPC) and Agile ...

Showing results 41-60

Senior Api Developer information

See Washington salary details

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How much do senior api developer jobs pay per hour?

As of Sep 3, 2026, the average hourly pay for senior api developer in Washington is $69.92, according to ZipRecruiter salary data. Most workers in this role earn between $59.38 and $78.41 per hour, depending on experience, location, and employer.

What is a senior API developer?

Senior API Developers are experienced software engineers who specialize in designing, building, and maintaining Application Programming Interfaces (APIs) that allow different software systems to communicate. They often lead technical projects, mentor junior developers, and ensure APIs are secure, scalable, and well-documented. Senior API Developers typically work with a variety of programming languages and frameworks, and collaborate closely with other teams to align API solutions with business goals.

What skills and qualifications are needed to thrive as a senior API developer?

To thrive as a Senior API Developer, you need advanced programming skills (often in languages such as Java, Python, or Node.js), deep understanding of API design principles, and experience with RESTful and/or GraphQL APIs, typically supported by a relevant degree or professional experience. Familiarity with API management tools (like Postman, Swagger, or Apigee), cloud platforms (such as AWS or Azure), and knowledge of authentication protocols (OAuth, JWT) are vital. Strong problem-solving abilities, effective communication, and leadership skills help in collaborating across teams and mentoring junior developers. These competencies ensure robust, scalable API solutions that meet business needs and integrate seamlessly with other systems.

How do senior API developers typically collaborate with product managers and frontend teams during the development process?

Senior API Developers play a key role in bridging backend systems with product and frontend teams. They work closely with product managers to interpret business requirements into technical specifications for APIs. Regular collaboration with frontend developers ensures that APIs are designed for usability, performance, and scalability, often involving code reviews, feedback sessions, and iterative testing. Effective communication and proactive problem-solving are essential to align API functionality with both business objectives and user experience.

What is the difference between Senior Api Developer vs API Engineer?

AspectSenior API DeveloperAPI Engineer
Required CredentialsBachelor's in CS or related, experience in API developmentBachelor's or higher in CS, software engineering, or related field
Work EnvironmentSoftware development teams, tech companies, startupsDevelopment teams, cloud services, enterprise environments
Employer & Industry UsageTech firms, SaaS providers, e-commerceCloud providers, enterprise software, API platforms
Common Search & ComparisonOften compared for API design and development rolesFocuses on API infrastructure and deployment

While both roles involve working with APIs, a Senior API Developer primarily designs, develops, and maintains APIs, focusing on functionality and integration. An API Engineer often emphasizes the infrastructure, deployment, and scalability of APIs within larger systems. Understanding these distinctions helps employers and professionals choose the right role for their needs.

Are senior API developers in demand?

Senior API developers are in high demand due to the increasing reliance on web services and integrations across industries. They are often required to have expertise in REST, SOAP, and API security, with many organizations seeking experienced professionals to build and maintain scalable, secure APIs. The demand is expected to grow as digital transformation accelerates and companies prioritize cloud-based solutions.

How much do senior API developers make?

Senior API developers typically earn between $100,000 and $150,000 annually, depending on experience, location, and industry. They often have expertise in RESTful APIs, programming languages like Java or Python, and may hold certifications that enhance their earning potential.

What are the most commonly searched types of Api Developer jobs in Washington?

The most popular types of Api Developer jobs in Washington are:

What are popular job titles related to Senior Api Developer jobs in Washington?

For Senior Api Developer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Senior Api Developer jobs in Washington look for?

The top searched job categories for Senior Api Developer jobs in Washington are:

Infographic showing various Senior Api Developer job openings in Washington as of August 2026, with employment types broken down into 79% Full Time, 7% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $145,425 per year, or $69.9 per hour.

Senior Platform Engineer -- Enterprise API Gateway

BaseCamp Consulting & Solutions

Reston, VA โ€ข On-site

$110K - $151K/yr

Full-time

Posted 10 days ago


Job description

POSITION OVERVIEW

The Senior Platform Engineer stands up, automates, and sustains the infrastructure the Customer's enterprise API gateway runs on. The role covers container platform engineering, infrastructure-as-code, deployment automation, and the observability and high-availability work that keeps the gateway serving production traffic through upgrades, patch cycles, and failures. It is the platform counterpart to the security and application seats on the same team. This position requires an active Moderate Background Investigation (MBI) suitability determination at start.


RESPONSIBILITIES

  • Deploy and operate the gateway control and data planes on Kubernetes or Red Hat OpenShift — namespaces, RBAC, quotas, ingress and routes, rolling updates
  • Automate installation, configuration, upgrade, and patching with Helm, Terraform, and Ansible, delivered as reusable modules rather than one-off scripts
  • Build and maintain CI/CD pipelines in Jenkins or GitHub Actions with artifact management, image scanning, and approval gates under Government change control
  • Manage declarative gateway configuration as code and promote it across environment tiers with tested rollback
  • Architect multi-AZ high availability and disaster recovery for the gateway tier and its datastores
  • Provision and maintain supporting cloud infrastructure — VPC design, subnets and routing, security groups, managed databases, backups, encryption
  • Automate certificate lifecycle, mutual TLS, and secrets handling for platform components
  • Build observability across metrics, logs, and traces with dashboards and alerting tied to service objectives
  • Establish performance and capacity baselines, load test the gateway tier, and tune for throughput and latency
  • Maintain runbooks, SOPs, and design artifacts sufficient for Government and follow-on staff to sustain the platform


REQUIRED QUALIFICATIONS

  • Active MBI suitability determination, current and transferable as of your start date
  • U.S. citizenship, as required for Customer contractor personnel
  • Eight years of hands-on platform, DevOps, or cloud infrastructure engineering in production, including three years supporting a Federal system subject to FISMA
  • Production operation of Kubernetes or Red Hat OpenShift, including cluster resources, ingress controllers, operators, and Helm
  • Infrastructure-as-code at scale with Terraform and Ansible, including reusable modules and version-controlled state
  • Ownership of enterprise CI/CD pipelines in Jenkins, GitHub Actions, or GitLab, with artifact repositories and security scanning integrated
  • AWS-native architecture across VPC, EC2 or EKS, IAM, S3, RDS, Lambda, and CloudWatch, or equivalent depth in another major cloud
  • Demonstrated design and operation of multi-AZ, high-availability services meeting a stated availability commitment
  • Observability engineering with tools such as Prometheus, Grafana, Splunk, AppDynamics, OpenTelemetry, or the ELK stack
  • Linux administration on RHEL, shell or Python scripting, and troubleshooting at the OS and network layer
  • Certificate and secrets handling for platform services — TLS and mutual TLS, key rotation, and a secrets management platform
  • Experience promoting configuration through Government-controlled environments under formal change control
  • Technical documentation — design artifacts, runbooks, and SDLC deliverables that hold up under Government review
  • Agile or Scrum delivery alongside Government product owners and multiple contractor teams
  • Bachelor's degree in Computer Science, Engineering, or Information Systems, or equivalent hands-on experience


PREFERRED QUALIFICATIONS

  • An active vendor certification on the program's API gateway platform, or willingness to earn it within 90 days of start with training provided
  • An active platform certification such as CKA, Red Hat OpenShift, AWS Solutions Architect, Terraform Associate, or ITIL v4
  • Prior support to a Federal financial or tax administration program
  • GitOps delivery with Argo CD, and service mesh exposure such as Istio
  • Messaging and integration middleware such as Kafka, IBM MQ, ActiveMQ, or webMethods
  • Zero Trust implementation — mTLS, RBAC/ABAC, MFA, PIV, and LDAP/AD or Kerberos integration
  • Supporting ATO and continuous monitoring from the platform side — scan remediation and evidence collection