Api Engineer Jobs
Api Engineer jobs are open across fintech, healthtech, SaaS, and enterprise software at every level from junior to principal, with specializations in REST design, GraphQL, and platform integrations. Find a role that fits from the openings below and apply directly.
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Benefits include medical, dental, and vision insurance, 401(k) retirement plan, paid time off, paid parental leave, life and disability insurance, flexible spending accounts, commuter benefits and tuition reimbursement.
Tuknik Government Services, LLC, Koniag Government Services (KGS) is seeking qualified candidates for this role supporting our U.S. Army customer on a large-scale Army contracting systems modernization and automation program. Designs, builds, secures, tests, and monitors the interfaces connecting current and migrated capabilities with DLA PIEE modules and external Army and Federal systems. The engineer preserves existing data standards while decoupling legacy components through versioned APIs and adapters. This is a contingent recruiting profile; the opening, employing subsidiary, compensation, work location, and staffing remain subject to final contract authorization.
Essential Functions, Responsibilities & Duties may include, but are not limited to:
- Inventory inbound and outbound interfaces, owners, classifications, endpoints, authentication, schemas, dependencies, approval lead times, monitoring, and recovery requirements.
- Develop and maintain interface decision matrices, Interface Control Documents, data mappings, record layouts, and operational procedures.
- Design and implement secure REST, SOAP, message, file-transfer, and event-based integrations using approved Appian and conventional-code patterns.
- Create API facades and adapters that preserve legacy contracts while capabilities and schemas transition into a new solution.
- Support integrations involving GEX, GFEBS, FPDS/SAM, VANTAGE, EDA, Closeout, and other authorized PIEE or Army services.
- Implement approved authentication, authorization, certificates, secrets, encryption, validation, error handling, retry, idempotency, and audit logging.
- Develop automated contract, schema, transformation, negative-case, exception, performance, and recovery tests.
- Instrument interfaces with correlation identifiers, health checks, structured logs, alerts, and dashboards for rapid fault isolation.
- Coordinate network, identity, DNS, certificate, firewall, boundary, and partner-system changes before cutover.
- Support interface migration, parallel operation, conformance, security, regression, operational acceptance, rollback, and retirement.
- Bachelor's degree in computer science, engineering, information systems, or a related field; additional relevant experience may substitute for education.
- Five or more years designing and supporting enterprise integrations and APIs.
- Experience with REST, SOAP, JSON, XML, schemas, authentication, certificates, message/file transfer, API testing, and production monitoring.
- Experience integrating workflow platforms, relational databases, conventional applications, and external systems under controlled change processes.
- U.S. citizenship and the active security clearance or eligibility required for the assigned work by the start of performance, with ongoing eligibility thereafter.
- Ability to communicate clearly with Government, technical, and business stakeholders and to maintain accurate work records in approved systems.
- Ability to protect Controlled Unclassified Information and classified information, when assigned, and comply with required access, training, and handling procedures.
- Experience with Appian Integration Objects, Connected Systems, web APIs, plug-ins, or integration SDKs.
- Experience with PIEE, GEX, GFEBS, SAM.gov, FPDS, VANTAGE, PDS/PRDS, or other acquisition interfaces.
- Experience supporting interfaces across IL-5 and IL-6 boundaries without assuming cross-domain data movement.
- API and enterprise integration engineering
- Interface security and identity
- Schemas, transformations, and data standards
- Monitoring, fault isolation, and recovery
- ICDs, partner coordination, and controlled cutover
Work may occur remotely when authorized, at Government facilities, or in controlled office and data-center environments. Work involving classified information or SIPRNet will be performed at a Government-approved secure location using authorized systems. The role generally supports Government business hours, with occasional release, incident-response, maintenance-window, or approved travel requirements. Reasonable accommodations may be made to enable qualified individuals with disabilities to perform the essential functions.
Our Equal Employment Opportunity Policy
The company is an equal opportunity employer. The company shall not discriminate against any employee or applicant because of race, color, religion, creed, ethnicity, sex, sexual orientation, gender or gender identity (except where gender is a bona fide occupational qualification), national origin or ancestry, age, disability, citizenship, military/veteran status, marital status, genetic information or any other characteristic protected by applicable federal, state, or local law. We are committed to equal employment opportunity in all decisions related to employment, promotion, wages, benefits, and all other privileges, terms, and conditions of employment.
The company is dedicated to seeking all qualified applicants. If you require an accommodation to navigate or apply for a position on our website, please get in touch with Heaven Wood via e-mail at accommodations@koniag-gs.com or by calling 703-488-9377 to request accommodations.
Koniag Government Services (KGS) is an Alaska Native Owned corporation supporting the values and traditions of our native communities through an agile employee and corporate culture that delivers Enterprise Solutions, Professional Services and Operational Management to Federal Government Agencies. As a wholly owned subsidiary of Koniag, we apply our proven commercial solutions to a deep knowledge of Defense and Civilian missions to provide forward leaning technical, professional, and operational solutions. KGS enables successful mission outcomes for our customers through solution-oriented business partnerships and a commitment to exceptional service delivery. We ensure long-term success with a continuous improvement approach while balancing the collective interests of our customers, employees, and native communities. For more information, please visit www.koniag-gs.com.
Equal Opportunity Employer/Veterans/Disabled. Shareholder Preference in accordance with Public Law 88-352
Api Engineer Jobs by Experience Level
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Who's Hiring



Top Industries Hiring
- Technology & Software
- Banking & Financial Services
- Manufacturing
- Science & Research
- Staffing & Recruiting
What Employers Look For
The qualifications that appear most often in api engineer jobs.
- Proficiency designing and documenting RESTful APIs and OpenAPI specifications
- Experience with authentication protocols including OAuth 2.0 and API key management
- Hands-on work with API gateways such as Kong, Apigee, or AWS API Gateway
- Familiarity with GraphQL schema design and query optimization
- Bachelor's degree in computer science, software engineering, or a related field
- Experience writing integration tests and contract tests for API endpoints
Tips for Your Api Engineer Job Search
Tailor your resume to API specifics
List the API protocols you've worked with, such as REST, GraphQL, and gRPC, alongside the frameworks and gateways you've used. Hiring managers scan for these terms first, so generic backend descriptions will not get you past the initial screen.
Highlight versioning and deprecation experience
Many api engineer postings specifically call out versioning strategy and backward compatibility. If you've managed a v1-to-v2 migration or led a deprecation cycle, call that out explicitly in your resume's experience bullets, not just your skills list.
Filter openings by integration stack
API roles vary widely depending on whether the team uses OAuth, API gateways like Kong or Apigee, or internal service meshes. Targeting openings that match the tools you know best increases your interview-to-offer conversion significantly.
Apply early to roles that fit
Migrate Mate lists api engineer openings from across the United States in one place, so you can find roles that match and apply directly to each listing.
Prepare a live API demo or public spec
A published OpenAPI spec or a small demo API on GitHub lets hiring managers evaluate your design sensibility before the first call. Interviewers frequently review candidates' public work ahead of technical screens for api engineer positions.
Negotiate on scope, not just compensation
After receiving an offer, ask about ownership over API standards decisions and involvement in roadmap planning. Api engineers who clarify design authority upfront tend to avoid friction later, and it signals seniority to the hiring team during negotiation.
Api Engineer Jobs: Frequently Asked Questions
Which companies are hiring the most api engineers?
The companies hiring the most api engineers right now include OpenAI, Capital One, and State Street, with the largest share of openings in California, Virginia, and New York, based on current listings on Migrate Mate as of November 2026. Fintech and enterprise SaaS companies tend to post the highest volume of these roles consistently.
How many api engineer jobs are remote?
About 89% of api engineer openings are fully remote or hybrid as of November 2026, reflecting the role's strong alignment with distributed engineering teams. Platform and integration-focused api engineer positions tend to be the most remote-friendly, while roles tied to on-premises infrastructure or regulated data environments more often require on-site presence.
How do you become a api engineer?
Start by building a solid foundation in HTTP fundamentals, RESTful design principles, and at least one backend language such as Python, Node.js, or Java. Work through projects that involve designing, securing, and documenting APIs end to end. Learn versioning strategies and authentication flows, then publish a real API with a public OpenAPI spec to demonstrate your work to employers.
Can you get hired as a api engineer with little experience?
Yes, entry-level api engineer roles exist, particularly at companies building internal developer tooling or expanding integration layers. Focus your applications on positions that list REST and OAuth as requirements rather than advanced gateway orchestration. A portfolio with a documented, functional API project carries significant weight when formal experience is limited, especially if it shows clean error handling and versioning.
What does the api engineer interview process look like?
Most api engineer interviews start with a recruiter screen focused on your background and tool familiarity, followed by a technical phone screen testing API design concepts and HTTP mechanics. A take-home or live coding exercise typically involves designing an endpoint or debugging an integration. Final rounds usually include a system design discussion and a conversation with engineering leadership about standards and ownership.
Where can I find and apply to api engineer jobs?
You can find and apply to api engineer jobs on Migrate Mate, which lists current openings from across the United States. Search the listings to find roles that match your experience and stack, then apply directly to each one that fits.
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