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Java Software Engineer III - Java (Azure Serverless Focus)

Tech ObserverBuffalo, NY🇺🇸United StatesPosted 9 Sept 2026

Quick Overview

Salary
$89/hr
Seniority
Mid Senior
Work mode
Hybrid
Location
Buffalo, NY, United States
Posted
19 hours ago
SpringSpring BootOAuthApacheAzureGitHTTPJUnitJavaLESSRESTVault

Job Description

Java Software Engineer III - Java (Azure Serverless Focus)

Buffalo, NY (4 days onsite/1 day remote)

12+-month contract

Web Cam Interview

$88.65/Hr on W2

NOTES FROM MANAGER/REQUIRED SKILLS & EXP.:

  • We are seeking a highly skilled and experienced Java Developer to design, build, and maintain a robust and scalable middleware application hosted on Azure.
  • This application will facilitate seamless data flow between our internal systems and a SaaS hosted application, leveraging Azure Functions and other Azure services, with Java as the primary development language.
  • Candidate must have sufficient back-end development experience. Front-end/UI development is not applicable.

Skill Set 1: Advanced Java, Spring Boot, REST APIs, concurrency, testing, performance tuning, mentoring

Skill Set 2: Azure cloud development, integration, security, observability, resiliency, CI/CD, IaC

Skill Set 3: Enterprise APIs and SaaS migration: OAuth 2.0, retries, idempotency, validation, reconciliation

Software Engineer III - Java (Azure Serverless Focus)

  • We are seeking a highly skilled and experienced Java Developer to design, build, and maintain a robust and scalable middleware application hosted on Azure.
  • This application will facilitate seamless data flow between our internal systems and a SaaS hosted application, leveraging Azure Functions and other Azure services, with Java as the primary development language.

Responsibilities:

  • Design, develop, deploy, and maintain Java-based Azure Functions for data integration
  • Implement secure and efficient API interactions with external SaaS applications.
  • Ensure the scalability, reliability, and performance of the middleware solution.
  • Collaborate with cross-functional teams to define requirements and deliver high-quality solutions.
  • Implement effective error handling, logging, and monitoring for distributed systems.
  • Participate in code reviews, promote best practices, and contribute to architectural discussions.

Essential Skills and Experience:

  • Strong Core Java Development: Solid understanding of OOP, data structures, algorithms, concurrency, and exception handling.

Java Ecosystem:

  • Spring Boot: Proven experience building RESTful APIs
  • Maven/Gradle: Proficiency with build automation.
  • JUnit/Mockito: Experience with Unit Testing

HTTP Client & API Interaction:

  • Experience with Java HTTP client libraries (e.g., java.net.http, Apache HttpClient, SpringWebClient).
  • JSON Processing: Experience with JSON serialization/deserialization.
  • API Authentication: Understanding and implementing API Keys, Basic Auth, and OAUTH 2.0.
  • API Error Handling: Experience with HTTP status codes, retries, and backoff/circuit breaker strategies.

Azure-Specific Skills:

  • Azure Functions: Strong understanding of triggers, bindings, and function app structures.
  • Azure Services Integration: Experience with Azure Storage, Service BEvents Hub.
  • Azure Key Vault: Essential for secure secret management.
  • Managed Identities: Experience with credential-less access to Azure resources.
  • Monitoring: Familiarity with Azure Monitor/App Insights for logging and tracing.

Serverless Principles: Understanding event-driven architecture, statelessness, and cold start considerations.

DevOps: Experience with Git for version control and CI/CD pipelines for deployment.

EDUCATION AND EXPERIENCE REQUIRED:

  • Minimum of an associate s degree and 6 years systems analysis/application development experience, or in lieu of a degree, a combined minimum of 8 years higher education and/or work experience, including a minimum of 6 years systems analysis/application development experience.
  • Familiar with application development software and hardware platforms.
  • Proficiency with personal computers as well as pertinent project management, word processing and spreadsheet software.
  • Capable of working on multiple projects of a complex nature.
  • Excellent problem-solving skills to assist in issue resolution.
  • Excellent verbal and written communication skills, with prior experience presenting to the target audience.
  • Excellent organizational and time management skills.
  • Detail-oriented.
  • Strong lateral thinking skills.
  • Experience coordinating between Applications and business units.
  • Experience recommending and implementing system solutions.
  • Experience driving project milestones and delivery dates.
  • Proven mentoring and leadership capabilities from a project management perspective.

EDUCATION AND EXPERIENCE PREFERRED:

  • Good understanding of the Bank's application framework.
  • Subject matter expert in business with knowledge or experience utilizing application/system being supported.
  • Mastered understanding of applications supported with an advanced knowledge of interfacing/integrated applications.
  • Ability to work in a team environment as well as autonomously.
  • Ability to multitask for various components of complex projects.
  • Mastered knowledge and focus of the entire system to work on projects outside of normal business-as-usual (BAU).

For the Candidate: Please provide responses for ALL of the questions below to confirm you have ALL of the required skills/experience (please be sure the information is accurate, honest, and that the resume also reflects the same skills/experience, so we re not rejected & flagged for discrepancies):

  • 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, 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 work model (4 days onsite/1 day remote - mandatory, no exceptions)?
  • If relocating, are you able to relocate within 2 weeks of offer acceptance?
  • LinkedIn profile link?
  • Do you possess exceptional communication skills (verbal/written)?
  • Do you possess a minimum of an Associate s degree and 6 years systems analysis/application development experience, or in lieu of a degree, a combined minimum of 8 years higher education and/or work experience, including a minimum of 6 years systems analysis/application development experience (required)?

Skill / Category

Years of Experience

Relevant Projects (Clients)

Commentary / Highlights w/ the Skill

IT overall

Senior SW Engineer

Advanced Java, Spring Boot, REST APIs, concurrency, testing, performance tuning, mentoring (all required)

1). Advanced Java:

2). Spring Boot:

3). REST APIs:

4). Concurrency:

5). Testing:

5). Performance Tuning:

6). Mentoring:

Azure cloud development, integration, security, observability, resiliency, CI/CD, IaC (required)

Enterprise APIs and SaaS migration: OAuth 2.0, retries, idempotency, validation, reconciliation (required)

Banking and/or financial domains (preferred, not required)

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