Java + Python Full Stack Developer

Job Title : Senior Software Engineer (Full Stack Capability)

Experience : 4+ Years

Location : West Patel Nagar, New Delhi

Employment Type : Full-Time

About the Role :

We are looking for a highly skilled Senior Software Engineer with 4+ years of experience in designing, developing, and maintaining scalable web applications. The ideal candidate should have strong backend expertise in Java, Python and Node.js while also being capable of handling frontend development when required.

This role requires excellent problem-solving abilities, ownership mindset, and strong communication skills to collaborate effectively with cross-functional teams and stakeholders.

Key Responsibilities :

• Design, develop, and maintain robust backend applications using Java and Node.js.
• Build and consume RESTful APIs and microservices.
• Develop scalable, secure, and high-performance applications.
• Work with frontend technologies to build and enhance user-facing features.
• Collaborate with product managers, designers, and other developers to deliver business requirements.
• Optimize application performance, troubleshoot issues, and implement best practices.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and contribute to technical discussions.
• Manage database design, optimization, and integrations.
• Ensure application security, scalability, and reliability.

Required Skills & Qualifications :

• 4+ years of professional software development experience.
• Strong hands-on experience with Java, Spring Boot, and related backend frameworks.
• Strong experience with Node.js, Express.js, and API development.
• Good understanding of Microservices Architecture.
• Experience with MySQL, PostgreSQL, or MongoDB.
• Knowledge of Redis, caching mechanisms, and message queues is a plus.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.
• Experience with version control systems like Git.
• Understanding of CI/CD pipelines and deployment processes.

Frontend Requirements :

• Ability to work on frontend development when required.
• Experience with React.js, JavaScript, TypeScript, HTML5, and CSS3.
• Understanding of responsive design and modern UI development practices.

Soft Skills :

• Excellent verbal and written communication skills.
• Strong stakeholder management and client interaction abilities.
• Ability to work independently and take ownership of projects.
• Strong analytical and problem-solving skills.
• Team player with a collaborative mindset.

Preferred Qualifications :

• Experience working in product-based or fast-paced startup environments.
• Knowledge of Docker, Kubernetes, and DevOps practices.
• Experience with Agile/Scrum methodologies.

Company: Ethara AI

Location: Gurgaon (Work From Office)

Employment Type: Full-Time

Experience Required: 2–4 Years

Open Roles: Software Engineers (Python Fullstack)

About Us

Ethara AI is a leading AI and data services company in India, specializing in building high-quality, domain-specific datasets for Large Language Model (LLM) fine-tuning. Our work bridges the gap between academic learning and real world AI applications, and we are committed to nurturing the next generation of AI professionals.

Role Overview:-

We are looking for experienced Python Fullstack Software Engineers who can contribute to post training AI development workflows with strong proficiency in coding tasks and evaluation logic. This role involves working on high-impact AI infrastructure projects, including but not limited to:

 Code generation, validation, and transformation across Python, Java, JavaScript, and modern frameworks;

 Evaluation and improvement of model-generated code responses;

 Designing and verifying web application features, APIs, and test cases used in AI model alignment;

 Interpreting and executing task specifications to meet rigorous quality benchmarks;

 Collaborating with internal teams to meet daily throughput and quality targets within a structured environment.

Key Responsibilities:-

 Work on fullstack engineering tasks aligned with LLM post-training workflows;

 Analyze model-generated outputs for correctness, coherence, and adherence to task requirements;

 Write, review, and verify application logic and coding prompts across supported languages and frameworks;

 Maintain consistency, quality, and efficiency in code-focused deliverables;

 Engage with leads and PMs to meet productivity benchmarks (8–9 working hours daily);

 Stay updated with AI development standards and contribute to refining internal engineering processes.

Technical Skills Required:-

 Strong proficiency in Python and nice to have: Java, Node.js;

 Strong experience in frontend technologies: React.js, HTML/CSS, TypeScript;

 Familiarity with REST APIs, testing frameworks, and Git-based workflows;

 Ability to analyze, debug, and rewrite logic for correctness and clarity;

 Good understanding of model response evaluation and instruction-based coding logic

Qualifications:-

 Bachelor’s or Master’s degree in Computer Science, Engineering, or related field;

 2–4 years of experience in a software development role (Fullstack preferred);

 Prior exposure to AI/LLM environments or code-based evaluation tasks is a plus;

 Excellent written communication and logical reasoning abilities;

 Comfortable working from office in Gurgaon and committing to 8–9 hours of productive work daily

Why Join Us

 Be part of a high-growth team at the forefront of LLM post-training development;

 Work on real-world AI engineering problems with production-grade impact;

 Competitive compensation with performance-driven growth opportunities;

 Structured workflow, collaborative culture, and technically challenging projects

Key Responsibilities

🖥️ Frontend (Angular)

• Develop responsive, accessible web UI for assessment tools, educator dashboards, and parent reports.
• Implement dynamic form builders and scoring interfaces for multiple domains (reading, writing, math).
• Build PDF report previews, filtering tools, and real-time updates.

🔙 Backend (Python/FastAPI)

• Design and implement APIs for user management, assessments, intervention logs, and reports.
• Integrate scoring logic and data aggregation for AI insights.
• Implement secure role-based access (admin, educator, parent).

🛠️ DevOps / Systems

• Maintain scalable architecture with PostgreSQL / MongoDB, Docker, and deployment pipelines.
• Work with AI engineer to connect ML models to backend for prediction and recommendation layers.
• Optimize performance and ensure data security (GDPR-aligned).

Job description

The ideal candidate must have extensive development experience of microservices using Java Spring Boot. In addition, they should know the installation, configuration, platform operations, and troubleshooting of API products. Besides, they should also have experience in API design, BaaS, Advanced proxies, Analytics, Developer Portal, and creating RESTful API patterns.

Responsibility

Develop and design RESTful microservices and APIs

Be involved in the development life cycle and would be doing definition and feasibility analysis

Apply latest software design techniques and contribute to the technical design of new solutions

Troubleshoot issues and solve problems where needed

Write object-oriented and maintainable code

Deliver quality results on time with minimal supervision

Work with multiple stakeholders involved in the project

Deliver APIs with standard documentation as per Open API standards

Skillset

Bachelor’s/Master’s degree in computer science, information technology, or engineering

At least 3-5+ years of experience in developing APIs and microservices using Spring Boot

Expertise in Java

Hands-on Experience in OOPS concepts, Spring Boot, Spring 3.x, Spring Dependency Injection (IOC, MVC, JDBC, JMS, etc.), and hibernate or any other ORMs

Hands-on experience in web services-RESTful

Knowledge of Restful API design patterns

Working knowledge in Databases (SQL Server, Oracle) and SQL

Hands-on experience in NGINX (Webserver and Reverse proxy)

Hands-on experience in setting up MTLS between microservices

Hands-on experience in docker implementation

Hands-on experience in consuming SOAP services from microservices

Hands-on experience in application servers like Tomcat and WebLogic

Hands-on experience in any of Java IDE (Eclipse, IntelliJ)

Hands-on experience in dependency and build management tools preferably Maven

Familiarity with code versioning tools, like Git, SVN, and Mercurial

Familiarity with APIGEE API gateway

Familiarity with Node.js

Onsite - Bahrain

·      Experience 4 to 8 Years Hands-on development experience with Java/J2EE

·      Knowledge/Work experience on core Java 1.8 features

·      Expertise in Object Oriented Programming, Design Patterns 

·      Knowledge/implementation on SOAP or REST protocol.

·      Working experience on Rest Services, Micro Services

·      Extensive hands-on experience building services using these Spring boot, Hibernate.

·      Capable of writing unit tests and implement best coding practices (Junit/Mockito)

·      Good knowledge of SQL / query optimization

·      Experience with modern JavaScript.

·      Working knowledge and experience with JQuery, Ajax, JSON, CSS, HTML

·      Knowledge on at least one web platform (e.g. Angular, React) is desirable.

·      Experience working in an Agile/Scrum development process

·      Good written and oral communication skills.

·      Strong problem solving and data structure skills.

·      Continuously contribute to team performance improvement and collaboration

·      Collaborate effectively across teams

·      Good to have knowledge on cloud technologies (AWS/Google/PCF)