Java Fullstack Developer (Java with React.JS) (Remote Work)

Position : Tech Lead – Fullstack Developer

Experience : 7 to 15 Years

Location : MG Road, Bengaluru (Hybrid – 3 Days in Office)

Notice Period : Immediate / Serving / 15 Days or Less

About the Opportunity :

We are hiring a Tech Lead – Fullstack Developer for a well-funded product startup building an enterprise-grade SaaS platform in the Cybersecurity domain.

The role involves designing and delivering scalable microservices and cloud-native applications in a high-performing, Agile engineering environment.

You'll work alongside industry veterans from billion-dollar digital firms, contributing to technical design, product architecture, and engineering best practices.

Mandatory Skills : Java, Spring Boot, ReactJS (or any modern JavaScript framework), RESTful APIs, PostgreSQL, Docker, Kubernetes, CI/CD, Hibernate/JPA, Multithreading, and Microservices architecture.

Role Highlights :

• Lead fullstack product development using Java (Spring Boot) and ReactJS (or similar frameworks).
• Design, develop, test, and deploy scalable microservices and RESTful APIs.
• Collaborate with Product, DevOps, and QA teams in a fast-paced Agile environment.
• Write modular, secure, and efficient code optimized for performance and maintainability.
• Mentor junior developers and influence architecture decisions across the team.
• Participate in all stages of the product lifecycle, from design to deployment.
• Create technical documentation, UML diagrams, and contribute to knowledge-sharing through blogs or whitepapers.

Key Skills Required :

1. Strong expertise in Java (mandatory) and Spring Boot.
2. Proficient in frontend development using ReactJS or similar frameworks.
3. Hands-on experience building and consuming RESTful APIs.
4. Solid knowledge of PostgreSQL, Hibernate/JPA, and transaction management.
5. Familiarity with Docker, Kubernetes, and cloud platforms (Azure/GCP).
6. Understanding of API Gateway, ACID properties, multithreading, and performance tuning.
7. Experience with CI/CD tools (Jenkins, GitHub Actions, GitLab CI) and Agile methodologies.
8. Strong debugging and profiling skills for performance bottlenecks.

Nice to Have :

• Experience with data integration tools (e.g., Pentaho, Apache NiFi).
• Exposure to the Healthcare or Cybersecurity domain.
• Familiarity with OpenAI APIs or real-time analytics tools.
• Willingness to contribute to internal documentation, blog posts, or whitepapers.

Perks & Benefits :

• Opportunity to build a product from scratch.
• Flat hierarchy and direct access to leadership.
• Strong focus on learning, mentorship, and technical innovation.
• Collaborative startup culture with long-term growth opportunities.

Interview Process :

1. Technical Round – Technical Assessment
2. Technical Interview – Core Development
3. Advanced Technical Interview – Design & Problem Solving
4. Final Round – CTO Discussion

We are currently seeking a full stack software engineer that can architect, design, develop and test applications using the following technologies: React JS, Spring Boot and REST API

Responsibilities:

·      Architect and design scalable, resilient, and cost-effective solutions

·      Lead the engineering team on all design and development work.

·      Hands on with implementing solutions and functions which collaborates with AI/ML products.

·     Experience with system diagrams, technical specifications, implementation and support plans.

·      Can work in close association with team and communicate efficiently with senior management on various Tech development aspects.

Qualifications:

·      Bachelor's degree/Masters/MS in Computer Science, Information Technology or a related field..

·      8+ years of experience architecting and designing software solutions.

·      5+ years of experience using UI based technologies such as JavaScript/Typescript, React and/or Next JS

·      5+ years of development experience with Object Orientated Programming (e.g., Java, C++)

·      5+ years of experience with (CI/CD) and Agile methodology

·      5+ years of experience building large scale distributed applications.

·      Hands on experience developing custom file viewers.

·      Experience with web development frameworks, databases, and version control systems

·      Hands on experience with integrating the front end with the back end using REST API’s

Responsibilities:

• Develop and maintain high-quality, efficient, and scalable backend applications.
• Participate in all phases of the software development lifecycle (SDLC)
• Write clean, well-documented, and testable code adhering to best practices.
• Collaborate with team members to ensure the successful delivery of projects.
• Debug and troubleshoot complex technical problems.
• Identify and implement performance optimizations.
• Participate in code reviews
• Hands-on experience with Springboot, Java 8 and above.
• 2-5 years of experience developing Java applications.
• Knowledge about at least one messaging system like Kafka, RabbitMQ etc.
• Required React developer requirements, qualifications & skills:
• Proficiency in React.js and its core principles
• Strong JavaScript, HTML5, and CSS3 skills
• Experience with popular React.js workflows (such as Redux)
• Strong understanding of object-oriented programming (OOP) principles.
• Experience with design patterns and best practices for Java development.
• Proficient in unit testing frameworks (e.g., JUnit).
• Experience with build automation tools (e.g., Maven, Gradle).
• Experience with version control systems (e.g., Git).
• Experience with one of these databases – Postgres, MongoDb, Cassandra
• Knowledge on Retail or OMS is a plus.
• Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset
• Ability to reverse engineer existing/legacy and document findings on confluence.
• Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria.

You are

Open - Always up for new ideas and able to take and give feedback in a positive way.

• Straightforward - Deal with colleagues in an open and transparent manner. Appreciates

teamwork and able to raise concerns if required

• Driven - sets high goals, doesn’t give up, and makes sacrifices to ensure that their job gets done

on time and meets/exceeds expectations.

• Curious - Aware of new technologies and uses them to make new improvements in the

Engineering ecosystem.

• Smart - Innovative and thinks out of the box, in difficult situations finds a way to succeed no

matter what

• Responsible - takes ownership of tasks given and has a strong work ethic.

Requirements

Acquired strong proven professional programming experience.

- Strong command of Algorithms, Data structures, Design patterns, and Product Architectural Design.

- Good understanding of DevOps, Cloud technologies, CI/CD, Serverless and Docker, preferable AWS

- Proven track record and expert in one of the field - DevOps/Frontend/Backend

- Excellent coding and debugging skills in any language with command on any one programming paradigm, preferred Javascript/Python/Go

- Experience with at least one of the Database systems - RDBMS and NoSQL

- Ability to document requirements and specifications.

- A naturally inquisitive and problem-solving mindset.

- Strong experience in using AGILE or SCRUM techniques to build quality software.

- Advantage: experience in React js, AWS, Nodejs, Golang, Apache Spark, ETL tool, data integration system, certification in AWS, worked in a Product company and involved in making it from scratch, Good communication skills, open-source contributions, proven competitive coding pro

Roles and Responsibilities

Based in Jaipur, you will be working in a collaborative team on cutting edge technologies in a supportive and dynamic environment. Ultimately you are responsible for building the CODI and on-boarding new clients - this involves:

- Developing a good understanding of the solutions which Peak delivers, and how these link to Peak’s overall strategy.

- Making suggestions towards shaping the strategy for a feature and engineering design.

- Managing own workload and usually delivering unsupervised. Accountable for their own workstream or the work of a small team.  

- Understanding Engineering priorities and is able to focus on these, helping others to remain focussed too

- Acting as the Lead Engineer on a project. Helps ensure others follow Peak processes, such as release and version control.

- An active member of the team, through useful contributions to projects and in team meetings.

- Supervising others. Deputising for a Lead and/or support them with tasks. Mentoring new joiners/interns and Masters students. Sharing knowledge and learnings with the team.

• End-to-end full-stack development experience
• Full hands-on experience with at least one of the following languages Java, PHP, Python, .NET and code repositories like GIT, SVN
• Expertise with HTML5, JQuery, CSS
• Proficiency with front-end JavaScript frameworks like Angular, React, etc.
• Experience of designing and developing APIs in a micro-service architecture
• Experience with webserver technologies like Node.js, J2EE, Apache etc.
• Good understanding and working experience with either relational or non-relational databases like Oracle, MySQL, PostgreSQL, Mongo DB, Cassandra
• Good understanding of the changing trends of user interface guidelines for mobile apps and be able to transform apps to newer form factors
• Hands-on with Native UI Components
• Familiar with Cloud components & deployment procedures.
• Familiar with code repository

• You will be part of a collaborative project team
• Will leverage several proprietary and standard tools to implement technical solutions.
• Responsible for understanding business requirements, providing estimation, developing solution, writing unit test scenarios and fixing defects for assigned applications.

A highly motivated and passionate individual who has experience in executing end to end web based application projects and bringing them to production quickly and with high quality. Passionate about building flexible and scalable solutions with an eye for detail and can weigh pros and cons to find best possible solutions.

Responsibilities:

• Collaborate with Product Manager and Engineering Manager to plan, implement and deliver tasks and modules on a timely basis with best practices and adherence to SOPs.
• Understand the product specification and be able to ask questions and gather information and feedback to build a well rounded solution.
• Deliver end to end applications starting from front end web development, back end development, middleware integration and persisting data in no SQL or RDBMS databases.
• Should be able to use existing front-end components to build web based UI interfaces.
• Strong technical design approach to problem solving for backend services.
• Should be able to communicate and defend the tech design choices taken for long term scalability and maintainability.
• Play the role of an unblocker in a tight scrum environment.
• Should be able to help other developers with challenges and help achieve milestones as per plan.

• Prioritise to manage ad-hoc requests in parallel with ongoing projects.
• Document API specification, technical design and other key information for all projects/modules/services owned

Requirements:

• A highly talented developer with 4-7 years of hands-on experience in building secure and scalable web-based applications using Java in backend and JS-based frontend frameworks
• Strong knowledge of Java 8+, databases (SQL and NoSQL), MySql, Mongo
• Experience working with Cassandra, Spring Boot, Apache Spark, Kafka, RabbitMQ is highly desirable
• Working knowledge of any one or more of AngularJS/ReactJS/VueJS and CSS3, HTML5
• Strong experience in data modeling for data storage tools in SQL; experience with noSQL is highly desirable.
• Experience building scalable solutions for 2x, 5x and 10x growth with high quality and flexibility.
• Practitioner of test-driven development practices.
• Experience in creating and adhering to best practices for development
• Experience working with container technologies like Docker and knowledge of CI/CD processes for automated integration and deployment.
• Basic knowledge of AWS preferred
• Strong experience in Microservices (SRP) paradigm
• Willing to learn new technologies (Golang)

• Qualification B.Tech/M.Tech/MCA(IT/Computer Science)
• Years of Exp 4 - 7 years