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Senior API Developer
Senior API DeveloperSyntricate Technologies • Buffalo, NY, United States
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Senior API Developer

Senior API Developer

Syntricate Technologies • Buffalo, NY, United States
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  • [job_card.full_time]
[job_card.job_description]

Senior API Developer

Buffalo, NY (Hybrid 3 days onsite / 2 days remote)

12+ Months

Web Cam Interview

$70-$80 / Hr on W2

I am looking for a Senior API Developer with the below expertise. This needs to be a very senior role, expectations are hands on as well as a leadership role.

Tech Stack :

  • Jave / SpringBoot
  • Rest API
  • OpenShift
  • ELK
  • GitLab

System Architecture & Technical Design

  • Own and define the overall architecture of the application.
  • Choose technology stack components : database, messaging, caching, API gateway, security framework, etc.
  • Design APIs (RESTful, possibly GraphQL) with scalability, consistency, and security in mind.
  • Create architectural decision records (ADRs) to document and justify key technical decisions.

    • Hands-on Development

  • Write high-quality, production-grade code using Java + Spring Boot.
  • Set up and structure the initial codebase using best practices (layered architecture, DTOs, config management).
  • Build CI / CD-friendly microservices or modular monoliths depending on architecture choice.
  • Lead the development of MVP components, defining reusable patterns and common services.

    • DevOps & Deployment Strategy

  • Work closely with DevOps to define a deployment pipeline (Docker + Jenkins / GitHub Actions + Helm / Kubernetes preferred).
  • Own environment configurations (dev, QA, staging, prod) and secrets management.
  • Ensure proper logging, health checks, metrics, and monitoring are integrated from the start (e.g., Prometheus + Grafana, ELK stack).

    • Team Leadership & Collaboration

  • Establish coding standards, code review practices, and version control strategies (e.g., GitFlow).
  • Mentor junior engineers and support onboarding of future team members.
  • Collaborate with Product Owners, UX, and QA to refine requirements and deliver high-quality features.
  • Act as the technical face of the team in architecture discussions, demos, and stakeholder meetings.

    • Security & Compliance

  • Define and implement authentication (OAuth2, JWT, or enterprise SSO).
  • Ensure data security, secure endpoints, and follow secure coding practices.
  • Be proactive in identifying security vulnerabilities and remediating them (OWASP awareness is expected).

    • Documentation & Knowledge Transfer

    Maintain living documentation including :

  • API specifications (OpenAPI / Swagger)
  • Architecture diagrams and integration maps
  • Deployment and runbooks
  • Facilitate knowledge transfer to new team members and support operational readiness.

    • Initial Deliverables (First 60-90 Days)

  • Technology stack recommendation finalized and documented.
  • Application architecture (incl. service boundaries, database models, integration points).
  • CI / CD pipeline defined and integrated for basic services.
  • MVP-level Spring Boot microservices scaffolding completed and deployed to dev / test.
  • Setup of unit tests, integration tests, and static code analysis tools.
  • Knowledge base started (Confluence, Git repo docs,)

    • Please provide responses for ALL of the questions below to confirm you have ALL of the required skills / experience (please reply ASAP as submittals to our client are time sensitive) :

  • Are you currently under contract w / an employer where you require C2C only?
  • If hired, can you work as a W2 employee of our company, Globalquest, for the contract duration ( required, no exceptions )?
  • Do you reside in or near the Buffalo, NY area, or open to relocation out of pocket to be onsite from day 1 in a hybrid role ( 3 days onsite / 2 days remote - mandatory, no exceptions )?
  • If relocating, are you able to relocate within 2 weeks' of offer acceptance?

    • Skill / Category Experience (Years) Relevant Project(s) Commentary / Highlights Overall IT experience Senior API Developer (min. of 8 to 10 yrs. required) Own and define the overall rchitecture of the application (required) Banking and / or Financial domains (ideal) Java (required) Spring Boot (required) Rest API (required) OpenShift (required) ELK (required) GitLab (required)

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