Senior Java Developer

API Developer (.NET Core 8/9)

Location: Hyderabad/Vijayawada- India



Navitas is seeking a Senior API Developer (.NET Core 8/9) to join our development team in building robust, high-performance microservices and APIs. You will play a key role in designing scalable, secure, and maintainable backend services that power our web and mobile applications. In this role, you will collaborate with product managers, front-end developers, and DevOps engineers to deliver seamless digital experiences and ensure smooth partner integration. This is a mission-critical position that contributes directly to our organization’s digital transformation initiatives.

Responsibilities will include but are not limited to:

• Microservices & API Development: Design, develop, and maintain RESTful APIs and microservices using .NET Core 8/9 and ASP.NET Core Web API.
• API Design & Documentation: Create secure, versioned, and well-documented endpoints for internal and external consumption.
• Asynchronous Processing: Build and manage background jobs and message-driven workflows using Azure Service Bus and Azure Storage Queues.
• Authentication & Security: Implement OAuth2.0, JWT, Azure AD for securing APIs; enforce best practices for secure coding.
• Caching Integration: Enhance performance through caching mechanisms (Redis, in-memory caching).
• Performance Optimization: Profile APIs and database queries to identify bottlenecks; tune services for speed, scalability, and resilience.
• Clean Code & Architecture: Follow SOLID principles, Clean Architecture, and domain-driven design to write modular, testable code.
• Technical Collaboration: Participate in Agile development processes; collaborate with cross-functional teams to plan and deliver solutions.
• Troubleshooting & Maintenance: Use debugging tools and logging strategies to maintain uptime and resolve production issues.
• Documentation: Maintain clear, accessible technical documentation for services, endpoints, and integration requirements.

What You’ll Need:

• Bachelor’s degree in Computer Science, Information Systems, or a related technical field.
• 8+ years of backend development experience using .NET Core (6+ preferred, experience with 8/9 strongly desired).
• Strong understanding of RESTful API design, versioning, and integration.
• Experience with Clean Architecture and Domain-Driven Design (DDD).
• Deep knowledge of SOLID principles, design patterns, and reusable code practices.
• Skilled in SQL Server, including schema design, query tuning, and optimization.
• Proficiency in Entity Framework Core and Dapper for data access.
• Familiarity with API security standards (OAuth2.0, JWT, API keys).
• Experience writing unit/integration tests using xUnit, Moq, or similar frameworks.
• Basic experience with Azure services, including message queues and storage.
• Proficiency with Git, Agile workflows, and collaboration tools.
• Strong communication and problem-solving skills.

Set Yourself Apart With:

• Hands-on experience with Azure components (e.g., Service Bus, Functions, App Services, AKS).
• Experience with Azure Application Insights, Datadog, or other observability tools.
• Familiarity with Docker, containerization, and CI/CD pipelines.
• Performance testing and load testing experience.
• Familiarity with Postman, Swagger/OpenAPI, and other dev/test tools.
• Exposure to Agile/Scrum methodologies and sprint planning processes.

Equal Employer/Veterans/Disabled

Navitas Business Consulting is an affirmative action and equal opportunity employer. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact Navitas Human Resources.

Navitas is an equal opportunity employer. We provide employment and opportunities for advancement, compensation, training, and growth according to individual merit, without regard to race, color, religion, sex (including pregnancy), national origin, sexual orientation, gender identity or expression, marital status, age, genetic information, disability, veteran-status veteran or military status, or any other characteristic protected under applicable Federal, state, or local law. Our goal is for each staff member to have the opportunity to grow to the limits of their abilities and to achieve personal and organizational objectives. We will support positive programs for equal treatment of all staff and full utilization of all qualified employees at all levels within Navitas.

Job Title: Java Developer

Experience Required: Minimum 3 Years

Location: Jaipur (Jagatpura) – On-site

Employment Type: Full-Time

Joining Preference: Immediate joiners highly preferred

About Deqode

Deqode is a technology-first company focused on solving complex enterprise challenges using cutting-edge technologies. We offer a collaborative, innovation-driven environment that empowers engineers to grow and contribute to impactful projects.

Job Summary

We are seeking a skilled Java Developer with 3+ years of experience to join our dynamic engineering team at our Jaipur office. The ideal candidate will have strong experience with Java, Spring Boot, Microservices architecture, and Kafka, along with exposure to cloud environments and container orchestration tools.

Mandatory Criteria

• Strong experience in Java, Spring Boot, and Microservices
• Must be based in Jaipur or open to relocating immediately
• Preference for immediate joiners

Key Responsibilities

• Take end-to-end ownership of development tasks with minimal guidance.
• Participate in the full software development lifecycle including design, development, testing, deployment, and support.
• Write clean, maintainable, and testable code following best practices and coding standards.
• Review code, provide constructive feedback, and contribute to improving team efficiency and code quality.
• Collaborate with cross-functional teams like frontend developers, QA, Product Managers, and third-party service providers to resolve dependencies and drive delivery.
• Ensure implementation of proper unit testing and maintain code coverage as per defined standards.
• Support and resolve production issues promptly to ensure high system availability.

Must-Have Skills

• Bachelor's degree in Computer Science or a related field
• Minimum of 3 years of professional experience in backend development using Java
• Expertise in Spring Boot and RESTful APIs
• Solid experience working with Microservices architecture
• Hands-on experience with Netflix OSS or Spring Cloud
• Working knowledge of Kafka for messaging and event-driven architecture
• Proficient in writing JUnit test cases and achieving code coverage goals
• Hands-on experience in CI/CD tools and pipelines (Jenkins, GitLab CI, etc.)

Minimum 7-12 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)

·        Good knowledge of the JVM with an understanding of performance and memory optimization.

·        Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

·        Excellent knowledge on collections like, Array List, Vector, LinkedList, Hashmap, HashTable, HashSet is mandate.

·        Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

·        Expert level understanding of Object Oriented Concepts and Data Structures

·        Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints,            functions, triggers, procedures etc.

Requirements: Job Description

• Excellent knowledge in Core Java (J2SE) and J2EE technologies.
• Hands-on experience with RESTful services, API design are must.
• Knowledge of microservices architecture is must.
• Knowledge of design patterns is must.
• Strong knowledge in Exception handling and logging mechanism is must.
• Agile scrum participation experience. Work experience with several agile teams on an application built with microservices and event-based architectures to be deployed on hybrid (on-prem/cloud) environments.
• Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
• Experience in managing the Source Code Base through Version Control tool like SVN, GitHub,Bitbucket, etc.
• Experience in using and configuration of Continuous Integration tools Jenkins, Travis, GitLab, etc.
• Experience in design and development of SaaS/PaaS based architecture and tenancy models.
• Experience in SaaS/PaaS based application development used by a high volume of subscribers/customers.
• Awareness and understanding of data security and privacy. Experience in performing Java Code Review using review tools like SonarQube, etc.
• Good understanding of end-to-end software development lifecycle. Ability to read and understand requirements and design documents.
• Good Analytical skills and should be self-driven.
• Good communication with inter-personal skills. Open for learning new technologies and domain.
• A good team player and ready to take up new challenges. Active communication and coordination with Clients and Internal stake holder

Requirements: Skills and Qualifications

• 6-8 years of experience in developing Java/J2EE based Enterprise Web Applications
• Languages: Java, J2EE, and Python
• Databases: MySQL, Oracle, SQL Server, PostgreSQL, Redshift, MongoDB
• DB Script: SQL and PL/SQL
• Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
• OS: Windows, Linux/Unix.
• Cloud Services: AWS and Azure
• Version Controls/ Devops tools: Git, Bitbucket and Jenkins.
• Message brokers: RabbitMQ, and Kafka
• Deployment Servers: Tomcat, Docker, and Kubernetes
• Build Tools: Gradle/Maven

Java Developer JD -Tata Business Hub

Job Title: Java Developer

Department: Technology and Research

Location: Mohali, Punjab

Reports to:  Technical Lead

Sampana Digital (SDPL) (http://www.sampanadigital.com">www.sampanadigital.com)  is a digital technology company that provides end-to-end product engineering and digital transformation services. Our engineering services includes web & mobile application development, user experience design, cloud, testing and infrastructure managed services to transform businesses digitally. We also enable enterprises with contextual and personalized two-way multi-channel mobile communications, including SMS, voice, email and PWA technology.

We believe in small teams of smart, committed, and diverse individuals coming together and form a breakthrough insight. We are a team of passionate professionals to craft an unbeatable culture and services.

Come and join us!   

The successful candidate will be a pro-active problem solver, quick learner and will provide technical leadership and solution ownership. This candidate should have a passion for technology and should be looked at as a “technical guru” who champions their design, coding and implementation strengths and prides themselves on their development expertise. The successful candidate will join a team that develops and integrates enterprise e-commence and e-transaction systems for a diverse client base.

• The successful applicant will be responsible for the technical delivery of all development assignments allocated to him in a timely fashion, while meeting rigorous quality targets.
• FSLC (Full Systems Life Cycle) programming in Java of scalable, maintainable, and well documented solutions based on Java
• Unit testing of code - Working with very large and complex SQL databases
• Troubleshooting through resolution of technical issues and system errors
• Performing testing, documentation, and mentoring/grooming/coaching less technical staff where applicable
• Work with Architects, Project Managers, and other Developers to estimate the level of effort necessary to implement assigned work packages.
• Write efficient, clean, tested code that follows high standards and quality requirements

Skills

• 1-2 years of enterprise application development experience with at least 1 year experience with Java/J2EE Technologies.
• Proficient in Java 8, with a good knowledge of java ecosystems
• Proven working experience in SQL and Database programming (MySQL, etc.)
• Development experience in Restful Web Services using Spring Framework
• Development experience using any ORM (JPA/Hibernate)

• Have knowledge of design pattern, which includes java, j2ee design pattern.
• Web development experience using HTML5, CSS and AJAX/JQuery and Angular preferred.
• Demonstrable working knowledge of CI/Build tools like Maven, Ant and Jenkins
• Proficient understanding of code versioning tools, such as Git/Bitbucket.
• Familiarity with mainstream application servers like Apache Tomcat, WebSphere 8.0.
• Have working knowledge of LINUX commands and scripting.
• Experience developing and deploying solutions/applications across various environments (on premises and cloud (AWS ,Azure, Alibaba, GCP etc.)