Full-stack Engineer (Java + React)

Role Overview

We are looking for a Senior Full Stack Developer to build and scale our fintech platform. You will own the entire lifecycle of our financial products, from designing high-performance relational schemas in PostgreSQL to building interactive dashboards in React.

Key Responsibilities

• Full Stack Development: Build and maintain end-to-end features using the PERN stack

(PostgreSQL, Express.js, React, Node.js).

• Database Optimization: Design complex relational models and optimize SQL queries to

handle high-volume financial data and audit trails.

• Security & Compliance: Implement rigorous security measures (e.g., JWT, OAuth, data

encryption) and ensure the platform adheres to fintech standards like PCI-DSS.

• API Architecture: Develop robust RESTful APIs to integrate with third-party banking APIs,

payment processors (Stripe/Plaid), and KYC providers.

Technical Requirements

• Front-end: Advanced proficiency in React.js (Hooks, Context API, Redux or TanStack Query)

and modern CSS (Tailwind/Styled Components).

• Back-end: Expert-level Node.js and Express.js experience, with a focus on asynchronous

programming and secure API design.

• Database: Deep knowledge of PostgreSQL (complex joins, indexing, triggers, and

migrations).

Additional skills

• Understanding of Event-Driven Architecture (using AWS SQS/SNS or Kafka).

• Familiarity with SOC2 or ISO 27001 compliance frameworks.

• Cloud (AWS): Proven experience with:

• RDS/Aurora for managed databases.
• IAM for secure access management.
• AWS Lambda & API Gateway for serverless architecture.
• CloudWatch for monitoring and alerting.

• Tools: Git, Docker, and experience with CI/CD workflows.

About US

RJ Fintech Solutions Pvt. Ltd. is a high-growth fintech startup on a mission to automate business financial operations. In a world where financial systems are often slow and opaque, we are building the "missing link"—a secure, transparent, and lightning-fast platform that puts banking and compliance first for various corporates.

We are not just another financial app; we are an engineering-first company. We believe that elegant code and robust architecture are the foundations of trust. By leveraging the PERN stack and AWS cloud-native infrastructure, we are replacing legacy complexity with modern, scalable solutions.

Why Work With Us?

1. Build the Foundation, Not Just Features

You won't be a small cog in a massive machine. As an early member of our engineering team, you will help define our technical architecture, choose our libraries, and set the coding standards for everyone who follows. Your fingerprints will be on the core DNA of our product.

2. Solve Problems That Matter

Fintech is one of the few industries where code has a direct, measurable impact on people's lives.

Whether we are [e.g., simplifying cross-border payments, democratizing investment, or building the next generation of credit], you will be solving high-stakes challenges around security, trust, and financial inclusion.

About the company

Metron Security provides automation and integration services to leading Cyber Security companies. Our engineering team works on leading security platforms including - Splunk, IBM’s QRadar, ServiceNow, Crowdstrike, Cybereason, and other SIEM and SOAR platforms. 

Software Engineer is a challenging role within Cyber Security Engineering integration development. The role involves developing a product/service that achieves high-performance data exchange between two or more Cyber Security platforms. A Software Engineer is at the core of the evolution process and is responsible for the End-to-End delivery of the project, right from getting the requirements from customers to deploying the project for them on-prem or on the cloud, depending on the nature of the project. We follow the best practices of engineering and keep evolving. We are agile. 

Each integration needs reskilling yourself with the required technology for that project. If you are passionate about programming and believe in the best practices of software engineering, the following are the skills we are looking for: 

● Developer-centric culture - No bureaucracy or red tape. 

● Chance to work on 200+ security platforms. 

● Opportunity to engage with end-users (customers) and just a cog in the wheel.

About the role

We are looking for passionate developers with 4-7 years of experience in software development to join the Metron Security team as Software Engineers. 

Mandatory Skills 

• 4+ years of experience in software engineering, with a proven track record of leading engineering teams and mentoring junior developers. 
• Expertise in at least one or two Object-Oriented Programming language (Python, typescript, Java,Node.js,Angular, react.js C#, C++) . 
• Good knowledge of Data Structure and its correct usage. 
• Oversee code reviews, ensuring adherence to best practices and maintaining high code quality standards. 
• Imbibe and maintain a strong customer delight attitude while designing and building products/services.

Other Requirements 

• Open to learn any new software development skill if needed for the project.
• Alignment and utilisation of the core enterprise technology stacks and integration capabilities throughout the transition states. 
• Participate in planning, definition, and high-level design of the solution and exploration of solution alternatives. 
• Define, explore, and support the implementation of enablers to evolve solution intent, working directly with Agile teams to implement them. 
• Good knowledge of the implications of Cyber Security on production.
• Experience in architecting & estimating deep technical custom solutions & integrations. 
• Manage the customer to ensure we have a continuous flow of work from them so that the team has enough work for at least a month. 
• Mentor and coach team members, providing technical guidance and fostering professional development. 

Added advantage: 

• Experience in the Cyber Security domain.
• Experience in developing software using web technologies. 
• Experience in handling a project from start to end. 
• Hands-on experience in an Agile Development project and in writing and estimating User Stories. 
• Contribution to open source - Please share your link in the application/resume if any.

📌 Job Title: Senior Java Developer

📍 Location: Bangalore

🕒 Experience: 6+ Years

💼 Employment Type: Full-time

🔍 Job Summary

We are looking for an experienced Senior Java Developer with 6+ years of hands-on experience in designing and developing scalable, high-performance applications. The ideal candidate should have strong expertise in Java, Spring Boot, and Microservices architecture, along with a passion for building robust backend systems.

💼 Key Responsibilities

• Design, develop, test, and maintain Java-based applications
• Build scalable microservices using Spring Boot
• Develop and consume RESTful APIs
• Collaborate with front-end developers, product managers, and other stakeholders
• Write clean, efficient, and well-documented code
• Troubleshoot, debug, and upgrade existing systems
• Participate in code reviews and ensure best practices
• Optimize performance and ensure application security

🛠️ Required Skills & Qualifications

• 6+ years of experience in Java development
• Strong knowledge of Core Java, Spring Boot, and Hibernate
• Experience with Microservices architecture
• Hands-on experience with REST APIs
• Familiarity with databases like MySQL, PostgreSQL, or MongoDB
• Experience with cloud platforms (AWS, Azure, or GCP)
• Knowledge of CI/CD tools (Jenkins, Git, Docker, Kubernetes)
• Understanding of Agile/Scrum methodologies

⭐ Good to Have

• Experience with Kafka or messaging queues
• Exposure to DevOps practices
• Knowledge of system design and scalability
• Experience with performance tuning

🎯 What We Offer

• Competitive salary and benefits
• Opportunity to work on modern technologies
• Collaborative and growth-oriented environment
• Learning and development opportunities

Job Title: Java Fullstack Developer (with Angular Experience)

Location: Mumbai, India

Experience: 8 to 12 Years

Company: Wissen Technology

Job Description:

Wissen Technology is seeking a highly skilled and experienced Java Fullstack Developer with a strong background in Angular to join our dynamic team in Mumbai. The ideal candidate will have a passion for technology, a strong analytical mindset, and the ability to work collaboratively in a fast-paced environment.

Key Responsibilities:

- Design, develop, and maintain robust and scalable web applications using Java and Angular.

- Collaborate with cross-functional teams to define, design, and ship new features.

- Write clean, maintainable, and efficient code.

- Ensure the performance, quality, and responsiveness of applications.

- Identify and correct bottlenecks and fix bugs.

- Help maintain code quality, organization, and automation.

- Conduct code reviews and provide constructive feedback to team members.

- Stay up-to-date with the latest industry trends and technologies.

Requirements:

- Bachelor’s degree/Master’s Degree in Computer Science, Information Technology, or a related field.

- 8 to 12 years of hands-on experience in fullstack development with Java and Angular.

- Proficiency in Java, Spring Boot, and RESTful APIs.

- Strong experience with Angular and front-end development (HTML, CSS, JavaScript/TypeScript).

- Knowledge of databases such as SQL Server, PostgreSQL, Oracle, or similar.

- Experience with version control systems (Git, SVN, etc.).

- Familiarity with Agile/Scrum methodologies.

- Strong problem-solving skills and a keen attention to detail.

- Excellent communication and teamwork skills.

- Ability to work independently and manage multiple tasks effectively.

Why Join Wissen Technology:

- Competitive salary and benefits package.

- Opportunity to work with cutting-edge technologies.

- Collaborative and inclusive work environment.

- Continuous learning and professional development opportunities.

- Chance to work on exciting and challenging projects.

Join Wissen Technology and be a part of a team where innovation meets excellence! Share this opportunity with colleagues and friends who might be interested.

Website: [www.wissen.com](http://www.wissen.com)

LinkedIn: [https://lnkd.in/gnK-vXjF](https://lnkd.in/gnK-vXjF)

Key Responsibilities :

- Design, develop, and maintain applications using Java and Kotlin

- Write clean, scalable, and efficient code

- Build and consume RESTful APIs and microservices

- Participate in all phases of the software development lifecycle

- Work with databases like MySQL, PostgreSQL, or MongoDB

- Collaborate with cross-functional teams including Product, QA, and DevOps

- Conduct unit testing and assist in code reviews

- Troubleshoot and debug applications

- Ensure application performance, security, and scalability

Required Skills :

- Strong programming experience in Java (Core/Advanced)

- Experience in Kotlin

- Solid understanding of OOP concepts, design patterns, and data structures

- Experience with frameworks such as Spring Boot, Ktor, or Android SDK

- Proficient in building and consuming RESTful APIs

- Familiarity with Git, JIRA, and CI/CD tools

- Basic knowledge of unit testing frameworks like JUnit or Mockito

Job Title: Full Stack Developer

Job Description:

We are looking for a skilled Full Stack Developer with hands-on experience in building scalable web applications using .NET Core and ReactJS. The ideal candidate will have a strong understanding of backend development, cloud services, and modern frontend technologies.

Key Skills:

• .NET Core, C#
• SQL Server
• React JS
• Azure (Functions, Services)
• Entity Framework
• Microservices Architecture

Responsibilities:

• Design, develop, and maintain full-stack applications
• Build scalable microservices using .NET Core
• Implement and consume Azure Functions and Services
• Develop efficient database queries with SQL Server
• Integrate front-end components using ReactJS
• Collaborate with cross-functional teams to deliver high-quality solutions

Responsibilities: 

• Responsible for monitoring project deliverables on day to day basis 
• Required to update relevant stakeholders or team members on the project's progress. 
• Assist, train, and ensure project team members with tasks that you have assigned to them. 
• Test the product modules and manage the change request, bug reports, etc. 
• Assist project managers in the planning, execution, and monitoring of projects Develop and maintain project plans, timelines, and progress reports. 
• Facilitate communication between intern stakeholders, clients, vendors, and management. 

Qualifications:

•  Bachelor's Degree or equivalent experience. 
• 3+ years of relevant Project Management experience. 
• Strong verbal, written, and organizational skills for documentation, user stories, etc. 
• Proficient in MS Excel, and Presentation. Proficient in Jira, Confluence, and Notion is a plus. 
• Excellent organizational and time-management skills. 
• Strong communication skills, both verbal and written. 
• Ability to work well in a team environment. 
• Experience with project management tools and software. 
• Ability to identify project risks and issues, and develop mitigation plans.

Technical Roles and Responsibilities

-  Demonstrate a systematic and disciplined architecture, system design and programming approach following a standard software development lifecycle

-  Meticulous attention to detail and strong focus on clear and practical documentation

-  Work closely with senior management, Development Manager, Project Manager, and a team of developers.

- Design, Code, Unit Test and support Software components

-  Deliver quality software in a time following standard software development processes

-  Analyze problems raised in software development or production environments and provide timely solutions

-  Develop, prepare and maintain system documentation, including program descriptions, operational procedures etc.

-  Act as the second line of support during production problems.

Mandatory Skills:

Software Engineering

u  Strong experience in agile methodologies and test driven development.

u  Experience in software development using open source technologies.

u  Experience in automated software testing.

u  Knowledge in domain-driven design, design patterns and enterprise integration patterns.

u  Must have experience in delivering software via complete Continuous Integration and Continuous Delivery (CI/CD) pipeline.

Software Development

u  Must be able to code in Java (SpingBoot and Spring Cloud Services).

u  Experience in some of the technologies below:

o PaaS: Pivotal Cloud Foundy/Openshift/ AWS/ Azure/ Docker/ Kubernetes

o Data: MySQL/ Postgres/ Oracle/ MongoDB/ Elasticsearch

o Cache: Redis/ Memcached

o UI: HTML5,Bootstrap, CSS, Angular 4/ ReactJS/RxJS

 - Strong knowledge in CI/CD toolset such as Ansible, Artifactory, Jenkins, BitBucket, SonarQube, Fortify,  Flyway, Jira and Confluence.

-  Strong knowledge in automated testing toolset such as jUnit, Mockito, cucumber, Selenium etc.

-  Strong knowledge in scripting languages such as Groovy and Linux shell.