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Zillion Technologies, Inc.

Full Stack Engineer

Hybrid

Mclean, United states

Mid level

Freelance

14-09-2025

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Skills

Java JavaScript TypeScript NoSQL MySQL MongoDB Cassandra PostgreSQL GraphQL GitLab CI/CD DevOps Docker Kubernetes Monitoring Jenkins Ansible Scrum angular Azure react AWS Software Development Agile JavaScript/TypeScript Spring React.js Vue.js GCP Redis HTML5 Spring Boot CI/CD Pipelines Gitlab CI Kafka Terraform Prometheus Grafana GitLab CI/CD Microservices

Job Specifications

Location: McLean, VA (2 days onsite)

Employment Type: Contract - Only W2 (No corp to corp)

We are looking for a Java Full Stack Developer with DevOps skills to join our engineering team. The ideal candidate is passionate about building scalable financial applications, has strong expertise in Java-based backends, modern front-end frameworks, and hands-on experience in DevOps automation and cloud deployment.

Key Responsibilities

Design, develop, and maintain full stack applications with a focus on Java (Spring Boot, Microservices) and modern front-end frameworks (React/Angular/Vue).
Implement and maintain APIs, integrations, and scalable back-end services.
Contribute to secure and reliable financial platforms by following FinTech compliance and security standards.
Collaborate with product managers, architects, and QA teams to deliver high-quality features.
Drive CI/CD pipelines, automate deployment, and optimize cloud infrastructure (AWS/Azure/GCP).
Monitor system performance, troubleshoot production issues, and ensure 99.9% uptime.
Apply best practices in Agile/Scrum development, testing, and DevOps culture.

Required Skills & Experience

5+ years of professional software development experience in Java, Spring Boot, Microservices.
Strong front-end skills with React.js / Angular / Vue.js, JavaScript/TypeScript, HTML5, CSS3.
Hands-on experience in DevOps tools: Docker, Kubernetes, Jenkins, GitLab CI/CD, Terraform, Ansible.
Strong understanding of REST APIs, GraphQL, and API security.
Solid knowledge of RDBMS (PostgreSQL/MySQL/Oracle) and NoSQL (MongoDB, Redis, Cassandra).
Cloud deployment experience in AWS / Azure / GCP.
Knowledge of security protocols and compliance in FinTech is a plus.
Experience with monitoring tools (ELK, Prometheus, Grafana) preferred.
Bachelor's/Master's degree in Computer Science, Engineering, or related field.

Nice to Have

Prior experience in FinTech, Payments, Banking, or Trading systems.
Exposure to Event-driven architectures (Kafka, RabbitMQ).
Familiarity with AI/ML integration in finance applications.

About the Company

Zillion Technologies, Inc. (Zillion) provides global expertise in innovative technology, services, and consulting that helps our clients to reach beyond what they think is possible. Since its inception in 2002, Zillion has become one of the fastest-growing companies in the Washington DC metro region. It is a leading provider of contemporary and reliable IT solutions backed by proficient and highly-professional individuals. Today, it has branched out an extensive array of solutions ranging from Digital Transformation solution... Know more