Senior Developer – Full Stack (Java Spring Boot, React, PostgreSQL)

Dallas, TX, United States (On-site)

Contract (4 months 29 days)

Published 5 hours ago

Java Development postgresql

Docker & Kubernetes documentation skills

DevOps & CI/CD microservices architecture apache kafka

REST APIs integration spring boot framework

• A strong hands-on Full Stack Senior Developer with deep expertise in Java Spring Boot, React JS, PostgreSQL, and Kafka along with proven experience in enterprise integrations (API, FTP, ETL, Integration Platform) and AI-assisted development.
• The role requires a blend of technical leadership, architecture/design ownership, and hands-on development, working closely with client stakeholders, architects, and technical team to deliver scalable and high-quality solutions.

A hands-on technical Senior Developer who can:

• Code + Design + mentor simultaneously
• Navigate complex integrations and enterprise ecosystems
• Engage confidently with client architects and business stakeholders
• Drive delivery excellence in high-pressure, multi-team environments

Key Responsibilities: Hands-on Development:

• Help translate business requirements into technical solutions, ensuring alignment with enterprise standards
• Perform design reviews, code reviews, and governance enforcement
• Develop and deliver complex backend components using Java Spring Boot
• Build responsive and high-performance UI components using React JS
• Design and optimize PostgreSQL database schemas, queries, and performance tuning
• Ensure adherence to coding standards, best practices, and DevOps pipelines

Integration & Data Exchange: Design and implement integration solutions across systems, including:

• REST/SOAP APIs
• File-based integrations (FTP/SFTP)
• ETL pipelines (batch and real-time data processing)
• Kafka - Integration platform
• Troubleshoot and optimize data flow, transformation, and synchronization issues
• Work with cross-system dependencies and enterprise integration patterns

Stakeholder Collaboration:

Work closely with

• Client business users – to understand functional requirements
• Client architects – to align solutions with enterprise architecture
• Tech Leads / Program Managers / Delivery Leads – for planning, tracking, and governance, as needed
• Participate in design workshops, requirement discussions, and solution walkthroughs

Team Management & Mentoring:

• Assign tasks, track delivery, and ensure quality and timeline adherence
• Mentor developers on technical skills, coding standards, and best practices
• Drive continuous improvement, innovation, and technical excellence

Delivery & Governance:

• Own end-to-end delivery of modules/components
• Ensure defect-free releases and production stability
• Participate in release planning, sprint execution, and estimations
• Maintain documentation including HLD, LLD, integration specs, and runbooks

Required Skills & Experience:

Technical Skills:

Strong hands-on experience in:

• Java, Spring Boot, Microservices architecture,
• React JS (modern frameworks, hooks, state management)
• PostgreSQL (schema design, DMLs), Redshift
• Unit testing (JUnit, Mockito)
• TDD concepts

Experience with:

• AI development tool such as WindSurf, Copilot.
• API design & integration (REST/SOAP)
• FTP/SFTP-based batch integrations
• ETL tools/processes (data pipelines, transformations)
• Kafka (Integration platform)
• Cloud platforms (AWS/Azure – preferred), API security (OAuth/JWT)
• Experience with GitLab, JIRA, and Agile development practices.
• Docker, Kubernetes

Knowledge of:

• CI/CD pipelines (Jenkins, Azure DevOps, GitHub Actions, etc.)
• Containerization (Docker, Kubernetes – preferred)

Soft Skills:

• Strong communication and stakeholder management skills
• Ability to work with cross-functional global teams
• Experience in client-facing roles and solution discussions
• Strong problem-solving and analytical thinking
• Participate in sprint planning, daily stand-ups, and retrospectives.
• Track progress using JIRA and ensure timely delivery of sprint commitments.
• Assist in tollgate processes including regression, integration, UAT, and security testing.
• Provide technical oversight during go-live and hyper-care phases.
• Ensure technical documentation is maintained and updated.
• Facilitate knowledge transfer sessions with client teams as needed.
• Identify technical risks and propose mitigation strategies.
• Work closely with QA and automation engineers to ensure testable code.

The pay range that the employer in good faith reasonably expects to pay for this position is $37.91/hour - $59.23/hour. Our benefits include medical, dental, vision and retirement benefits. Applications will be accepted on an ongoing basis. Tundra Technical Solutions is among North America’s leading providers of Staffing and Consulting Services. Our success and our clients’ success are built on a foundation of service excellence. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. Qualified applicants with arrest or conviction records will be considered for employment in accordance with applicable law, including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Unincorporated LA County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: client provided property, including hardware (both of which may include data) entrusted to you from theft, loss or damage; return all portable client computer hardware in your possession (including the data contained therein) upon completion of the assignment, and; maintain the confidentiality of client proprietary, confidential, or non-public information. In addition, job duties require access to secure and protected client information technology systems and related data security obligations.