About this role
Job Title
Senior Java Full-Stack Developer
Employment Type: Full-time
Locations: Pittsburgh, PA
Role Overview
We are seeking a Senior Java Full-Stack Developer to lead the design and development of scalable, high-concurrency microservices. This is a hands-on, full-stack role leveraging Java 17+ and Spring Boot on the backend and Angular on the frontend.
The ideal candidate has strong experience operating in complex, distributed data environments, with deep expertise in Oracle and MongoDB, ensuring data integrity, performance, and consistency across systems.
Key Responsibilities
Architecture & Design
Lead the architectural design of new microservices, ensuring solutions are loosely coupled, resilient, and highly available
Apply modern microservices patterns, including service discovery, API gateways, and circuit breakers
Influence platform standards, design patterns, and engineering best practices
Full-Stack Delivery
Develop end-to-end features from Angular UI through backend services to persistence layers
Build and consume secure RESTful APIs with standardized validation and error handling
Collaborate with product, UX, and backend teams to deliver high-quality solutions
Backend Engineering (Java & Spring)
Build high-performance services using Java 17+, leveraging modern language features such as:
Records
Sealed Classes
Pattern Matching
Stream API
Develop services using Spring Boot 3.x and the Spring ecosystem:
Spring Web
Spring Data JPA / MongoDB
Spring Security
Spring Cloud
Design and deploy distributed microservices using resiliency patterns (Resilience4j)
Database & Data Management
Design and optimize Oracle database interactions, including:
Advanced SQL and PL/SQL
Performance tuning and indexing strategies
Complex relational mappings
Build and optimize MongoDB data models, aggregations, and document versioning patterns
Implement data consistency strategies across polyglot persistence environments (e.g., Saga, Transactional Outbox)
Frontend Engineering
Build responsive, component-based UIs using Angular (v14+), TypeScript, RxJS, and Angular Signals
Implement state management using NgRx or lightweight state services
Ensure seamless integration between frontend and backend services
Performance, Quality & Security
Identify and remediate performance bottlenecks in Java code and database queries
Conduct rigorous code reviews and mentor junior and mid-level engineers
Implement robust security protocols, including:
OAuth2
OpenID Connect (OIDC)
JWT-based authentication and authorization
Required Technical Skills
Backend
Java 17+
Spring Boot 3.x
Microservices architecture
RESTful API design
Databases
Oracle Database (SQL, PL/SQL, tuning, indexing)
MongoDB (NoSQL modeling, aggregation framework)
Frontend
Angular (v14+)
TypeScript, RxJS
State management (NgRx or equivalent)
Nice-to-Have Qualifications
Event streaming experience with Apache Kafka (Producers, Consumers, Kafka Streams)
Experience with message brokers such as IBM MQ or RabbitMQ
Exposure to large-scale, high-throughput transactional systems
Soft Skills & Traits
Strong architectural and problem-solving mindset
Comfortable working in high-concurrency, distributed environments
Effective mentor and collaborator
Ownership-driven with attention to performance, security, and quality
About Techstra Solutions
Techstra Solutions helps leading organizations unlock the value of Digital and Talent Transformation. We combine business strategy, technology, and talent to guide clients through complex transformation journeys—from strategy through execution.
We deliver our expertise through consulting, innovative staffing solutions, and software development, always focused on measurable outcomes and long-term impact.
Equal Employment Opportunity Statement
Techstra Solutions is an equal opportunity employer. The Company makes its decisions on merit, and its policy of equal opportunity prohibits discrimination in all phases of the employment process, including, but not limited to, recruitment, hiring, promotion, selection, transfer, demotion, layoff, termination, compensation, benefits, and other terms and conditions of employment. The policy of equal opportunity applies without regard to race, color, creed, religion, gender,, sexual orientation, gender identification, pregnancy, marital status, national origin, ancestry, age, disability that can reasonably be accommodated without undue hardship, military status, veteran status, genetic predisposition or carrier status, alienage or citizenship, domestic partnership status, arrest or conviction record, status as a victim of domestic violence, or any other protected categories under federal, state, or local law. The Company also prohibits discrimination or harassment based upon the perception that a person has, or is associated with a person who has, any of these characteristics.