Senior Java Full Stack Developer

PowerToFly; Pennsylvania; On-site; USD 120,000 - 160,000; Full time

Job summary

Deloitte is seeking a Java Full Stack Developer to design, build, and maintain scalable web applications for financial services clients. You will bridge backend microservices with responsive frontends using React and JavaScript, leveraging Kafka for event-driven architectures.

Ideal candidates have 6–10+ years in full-stack development, strong Enterprise Java/Spring Boot experience, and solid SQL/PostgreSQL design skills. Onsite in Newark, DE or Irving, TX with potential hybrid schedules.

Qualifications

• 6 to 10+ years of dedicated professional software engineering experience in full-stack web development.
• 6+ years with Enterprise Java and Spring Boot, including microservices and REST APIs.
• 4+ years building dynamic UIs with React, JavaScript, and CSS.
• 2+ years implementing distributed messaging and event streaming with Apache Kafka.
• 5+ years relational database design and PostgreSQL skills.
• 2+ years Git version control and writing reliable unit tests with JUnit.
• 3+ years communicating complex technical concepts clearly to engineering teams and business stakeholders.

Responsibilities

• Design, build, and maintain scalable web applications and distributed microservices.
• Develop responsive user interfaces using React, JavaScript, and CSS.
• Architect and consume REST APIs and event-driven pipelines with Apache Kafka.
• Design database schemas and integrate services with PostgreSQL.
• Participate in Agile ceremonies and translate client requirements into technical deliverables.

Skills

Enterprise Java

Spring Boot

REST APIs

React

JavaScript

CSS

Kafka

PostgreSQL

SQL

JUnit

Git

Agile

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Jenkins

Terraform

HashiCorp Vault

Kubernetes

OpenShift

MongoDB

AWS

Azure

GCP

Job description

Java Full Stack Developer - Consultant / Senior Consultant

Position Overview

Are you an experienced, passionate pioneer in technology who wants to work in a collaborative environment? As a Java Full Stack Developer, you will have the ability to share new ideas and collaborate on high-impact projects supporting mission-critical financial services initiatives-without the extensive demands of travel. If so, consider an opportunity with Deloitte under our Project Delivery Talent Model. The Project Delivery Model (PDM) is a talent model tailored specifically for long‑term, onsite client service delivery.

Recruiting for this role ends on 10/11/2026.

Work You'll Do / Responsibilities

As a Java Full Stack Developer, you will design, build, and maintain mission‑critical, highly scalable web applications for financial services clients. In this client‑facing technical role, you will seamlessly bridge the gap between robust backend microservices architectures and responsive, user‑centric frontend interfaces‑leveraging Enterprise Java, Spring Boot, and Apache Kafka for high‑performance, event‑driven backends, while utilizing React, JavaScript, and CSS to deliver intuitive user experiences. You will collaborate cross‑functionally with product, engineering, and client stakeholders to deliver secure, enterprise‑grade software solutions that drive operational efficiency.

• Full‑Lifecycle Development: Design, implement, and maintain scalable, fault‑tolerant web applications and distributed microservices for clients using Enterprise Java and the Spring Boot framework.
• Frontend Engineering: Develop responsive, accessible, and dynamic user interfaces utilizing React, modern JavaScript, and CSS to deliver seamless client experiences.
• API & Event‑Driven Architecture: Architect and consume REST APIs and implement asynchronous, event‑driven messaging pipelines utilizing Apache Kafka.
• Database Integration: Architect efficient database schemas and integrate backend services with relational databases, specifically leveraging PostgreSQL and writing highly optimized SQL queries.
• Version Control & Quality Assurance: Manage source code using Git and elevate team code quality through rigorous peer code reviews and comprehensive automated testing using JUnit.
• Agile Collaboration: Participate actively in Agile ceremonies‑including daily stand‑ups and sprint planning‑translating client business requirements into actionable technical deliverables.
• Security & Compliance: Implement application security best practices, including OAuth2, mutual TLS (mTLS), and centralized secrets management, within a secured, clearance‑required facility environment.
• Stakeholder Communication: Communicate effectively with client and internal stakeholders, translating complex technical concepts into practical business solutions across EST and CST time zones as needed.

The Successful Candidate Would Possess These Skills

• Effective written and verbal communication skills
• Meticulous attention to detail and quality of work product
• Ability to build and sustain professional relationships
• Ability to lead projects or workstreams
• Ability to manage and prioritize multiple tasks in a fast‑paced and dynamic environment
• Strong interpersonal skills and professional demeanor
• Ability to meet deadlines
• Ability to provide clear guidance to others

The Team

AI & Engineering leverages cutting‑edge engineering capabilities to build, deploy, and operate integrated and verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming mission‑critical operations. We enable clients to stay ahead with the latest advancements by transforming engineering teams and modernizing technology and data platforms. Our delivery models are tailored to meet each client’s unique requirements.

Engineering as a Service provides complete design, implementation, and technology operations, leveraging our core engineering expertise. We transform engineering teams, modernize technology, and deliver complex programs with a product engineering approach. Our flexible delivery models‑traditional teams, pools, or pods‑are tailored to each client’s needs, offering engineering‑led advisory, implementation, and operational capabilities to accelerate innovation.

Qualifications

Required

• 6 to 10+ years of dedicated professional software engineering experience with a demonstrable track record in full‑stack web development, including client‑facing or consulting delivery.
• 6+ years of experience with Enterprise Java and Spring Boot, including microservices architecture and REST APIs.
• 4+ years of hands‑on experience building dynamic user interfaces using React, JavaScript, and CSS.
• 2+ years of experience implementing distributed messaging and event streaming using Apache Kafka.
• 5+ years of experience with relational database design, complex SQL queries, and PostgreSQL.
• 2+ years of experience using Git for version control and writing reliable unit tests using JUnit.
• 3+ years of experience communicating complex technical concepts clearly and concisely to engineering teams and business stakeholders.
• Must be able to clear and/or attain Department of Treasury Clearance prior to beginning the engagement.
• Must be able to commute to Newark, Delaware, or Irving/Dallas, Texas, at least three days per week to work onsite in a secured facility under a hybrid schedule.
• Candidates must be at least 18 years of age at the time of employment.
• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical discipline, and/or equivalent professional experience.
• Ability to travel 10%, on average, based on the work you do and the clients and industries/sectors you serve.

Preferred

• 2+ years of hands‑on experience developing and integrating business rules engines, specifically Drools or Java Business Process Model (jBPM).
• 3+ years of experience with enterprise system design and a solid understanding of UI/UX principles.
• 1+ year of experience managing NoSQL document databases, specifically MongoDB.
• 2+ years of experience building, deploying, and scaling cloud‑native applications within AWS, Azure, or GCP using Red Hat OpenShift and Kubernetes.
• 2+ years of experience integrating code into continuous deployment pipelines using Jenkins and provisioning infrastructure using Terraform.
• 2+ years of experience with application security protocols, including OAuth2, mutual TLS (mTLS), and centralized secrets management using HashiCorp Vault.
• 2+ years of experience delivering software solutions within the Financial Services and Insurance (FSI) sector.

This position is aligned with the Project. To view the associated benefit package, please reference this document USBenefitsJourneyProjectandCenterTAM