Senior Java Developer

Job Role: Sr. Full Stack Developer

Experience- Min 6 Years

Location-Bangalore

Company Profile- https://www.wissen.com/

Domain 

Fintech, Banking, Capital Markets, Investment Banking 

Job Summary 

We are looking for a highly experienced Senior Full Stack Engineer with strong hands-on expertise in Java, Spring Boot, AWS,React, and DynamoDB. The ideal candidate will have a strong background in building secure, scalable, high-performance applications for financial services, with experience in regulated environments such as banking, capital markets, or investment banking. 

Key Responsibilities 

• Design, develop, and maintain scalable backend services using Java and Spring Boot. 
• Build responsive and reusable user interfaces using React. 
• Design and optimize data models and access patterns in DynamoDB. 
• Develop RESTful APIs and integrate them with front-end and downstream systems. 
• Work on microservices-based architecture and cloud-native application design. 
• Collaborate with product managers, business analysts, architects, QA, and DevOps teams to deliver business-critical solutions. 
• Ensure application security, performance, reliability, and maintainability. 
• Participate in code reviews, architecture reviews, and design discussions. 
• Troubleshoot production issues and support enhancements in live environments. 
• Follow SDLC, Agile, and DevOps best practices in a fast-paced financial services environment.
•  

Required Skills 

• 8+ years of experience in software development. 
• Hands-on experience working on React, AWS cloud environment and DynamoDB.  
• Proficiency in Java, J2EE, Spring, Hibernate, REST API, Microservices.  
• Experience in developing applications using J2EE Design Patterns and AWS services. 
• Strong problem-solving skills and attention to detail. 
• Excellent communication and teamwork skills. 
• 
  
• Qualifications 
• Bachelor’s or Master’s degree in Computer Science, IT, or a related discipline. 
• Proven experience delivering enterprise-grade applications in regulated financial environments. 

Key Responsibilities

Develop and maintain scalable fullstack applications.

Collaborate with cross-functional teams to deliver innovative solutions.

Ensure performance optimization and adherence to best practices.

Provide technical leadership and mentorship to junior developers.

Required Skills

Proficiency in: Java, Spring Boot, MySQL, Hibernate, ReactJS

Knowledge of: NoSQL databases

Strong analytical and problem-solving skills

Location: Hybrid (Bangalore)

Travel: Quarterly travel to Seattle(US)

Education: B.Tech from premium institutes only

Note: Only immediate joiners required/ 0 to 15 Days — no other applications accepted.

Role Summary

We are seeking top-tier Lead Engineers who can design, build, and deliver large-scale distributed systems with high performance, reliability, and operational excellence. The ideal candidate will be a hands-on engineer with expert system design ability, deep understanding of distributed architectures, and strong communication and leadership skills.

The Lead Engineer must be able to convert complex and ambiguous requirements into a fully engineered architecture and implementation plan covering components, data flows, infrastructure, observability, and operations.

Key Responsibilities

1. End-to-End System Architecture

• Architect scalable, reliable, and secure systems from initial concept through production rollout.
• Define system boundaries, components, service responsibilities, and integration points.
• Produce high-level (HLD) and low-level design (LLD) documents.
• Ensure designs meet performance, reliability, security, and cost objectives.
• Make informed design trade-offs with solid technical reasoning.

2. Component & Communication Design

• Break complex systems into independently deployable services.
• Define APIs, communication contracts, data models, and event schemas.
• Apply modern architecture patterns such as microservices, event-driven design, DDD, CQRS, and hexagonal architecture.
• Ensure component clarity, maintainability, and extensibility.

3. Communication Protocol & Middleware

• Design both sync and async communication layers: REST, RPC, gRPC, message queues, event streams (Kafka/Kinesis/Pulsar).
• Define retry/timeout strategies, circuit breakers, rate limiting, and versioning strategies.
• Handle backpressure, partitioning, delivery semantics (at-least/at-most/exactly once).

4. Data Architecture & Storage Strategy

• Architect data models and storage strategies for SQL and NoSQL databases, distributed caches, blob stores, and search indexes.
• Define sharding/partitioning, replication, consistency, indexing, backup/restore, and schema evolution strategies.
• Design real-time and batch data processing pipelines.

5. Operational Readiness

• Define observability (metrics, logs, traces) requirements.
• Collaborate with DevOps to ensure deployment, monitoring, alerts, and incident management readiness.
• Provide production support as a senior technical owner.

6. Leadership & Influence

• Lead technical discussions, design reviews, and cross-team collaboration.
• Mentor engineers and help elevate team practices.
• Influence technology direction and architectural standards.

Required Qualifications

• 10+ years of professional software engineering experience with strong backend and distributed systems background.
• Proven track record of leading large-scale architecture and delivery of production systems.
• Expert in system design with the ability to simplify ambiguity and craft robust solutions.
• Strong programming experience in one or more languages (Java, Go, Python, C++).
• Deep understanding of distributed systems, message streaming, queues, RPC/REST, and event-driven architecture.
• Experience with cloud platforms (AWS/Azure/GCP) and container technologies (Kubernetes/Docker).
• Strong communication, documentation, and leadership skills.

Preferred Skills

• Experience with large-scale messaging/streaming (Kafka/Pulsar), caching, and NoSQL.
• Experience designing for high availability, fault tolerance, and performance at scale.
• Mentoring and leading global engineering teams.
• Familiarity with observability tooling (Grafana, Prometheus, Jaeger). 

Scoutflo is a platform that automates complex infrastructure requirements for Kubernetes Infrastructure.

Job Description:

1. In-depth knowledge of full-stack development principles and best practices.
2. Expertise in building web applications with strong proficiency in languages like
3. Node.js, React, and Go.
4. Experience developing and consuming RESTful & gRPC API Protocols.
5. Familiarity with CI/CD workflows and DevOps processes.
6. Solid understanding of cloud platforms and container orchestration
7. technologies
8. Experience with Kubernetes pipelines and workflows using tools like Argo CD.
9. Experience with designing and building user-friendly interfaces.
10. Excellent understanding of distributed systems, databases, and APIs.
11. A passion for writing clean, maintainable, and well-documented code.
12. Strong problem-solving skills and the ability to work independently as well as
13. collaboratively.
14. Excellent communication and interpersonal skills.
15. Experience with building self-serve platforms or user onboarding experiences.
16. Familiarity with Infrastructure as Code (IaC) tools like Terraform.
17. A strong understanding of security best practices for Kubernetes deployments.
18. Grasp on setting up Network Architecture for distributed systems.

Must have:

1) Experience with managing Infrastructure on AWS/GCP or Azure

2) Managed Infrastructure on Kubernetes

Job Sector: IT, Software

Job Type: Permanent

Location: Chennai

Experience: 10 - 20 Years

Salary: 15 - 35 LPA

Education: Any Graduate

Notice Period: Immediate

Key Skills: ReactJS, NodeJS, Angular

Contact at triple eight two zero nine four two double seven

Job Description:

Requirements

As the expectation from the candidate would be to develop, architect and work with different stakeholders in the organization, most of the skillset mentioned below is a must have.

• Overall 10+ years of experience in the IT industry.
• Full Stack Senior Developer/Architect with extensive knowledge in, at least 2 programming language such as JavaScript, C#, Java, Python, Go etc.
• Experience in any one of the Frontend JavaScript frameworks; ReactJS, Angular, VueJS.
• Experience in building and managing scalable high availability RESTful services using frameworks like NodeJS, .NET Core etc.
• Experience in RDBMS and NoSQL database technologies like SQL Server, MongoDB, DynamoDB etc.
• Extensive experience in web fundamentals like HTML 5 and CSS 3.
• Should have understanding of Containerisation with Kubernetes or Docker.
• Familiar with Test Driven Development and CI/CD pipelines (GitLab, Jenkins).
• Experience in different AWS Cloud Services like ECS, EKS, S3, EC2 etc is good to have.
• Working knowledge of source code repository Git.
• Understanding of how to build performant, decoupled, testable, maintainable code.
• Ability to understand business requirements and translate them into technical requirements.

Good written and verbal communication skills.

• Minimum 3 years of frontend development experience using React JS.
• Minimum 3 years of backend development experience using Node JS or .NET Core .

·        Qualification: bachelor’s or master’s degree in computer science, Engineering, or related field.

·        Proven 4+ years of experience in full stack development, including proficiency with React, Tailwind CSS, Python, and Flask.

·        Strong understanding of Graph QL concepts and hands-on experience with Ariadne or similar frameworks.

·        Familiarity with containerization using Docker for application deployment.

·        Demonstrated expertise in machine learning model integration, preferably using the Hugging Face framework.

·        Experience deploying machine learning models on cloud platforms such as Replicate and AWS is a strong plus.

·        Excellent problem-solving skills and a proactive attitude towards learning and adapting to new technologies.

·        Should have experience in Backend: Python, Flask Framework, Langchain ML Ops Framework, Ariadne Graph QL Framework, Docker. Frontend: React, Tailwind. ML Model Development – Hugging Face Model Training, ML Deployment onto Replicate or AWS

Requirement :- Java Tech Lead (with knowledge of Angular)

• 5+ years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, JSON, XML
• 3+ years of experience in Spring Boot, Sprint Rest, Spring MVC.
• 5+ years of experience in REST, Micro service Development
• Knowledge of Design Patterns (Good to Have).
• Proven Experience in building complex web systems that have been successfully delivered to customers
• Experience in writing SQL-queries and knowledge of PL/SQL
• Experience in working with databases Oracle 10g, 11g, Postgres, Cassandra etc
• Exposure/Experience in working/setting up CI and CD environments (DevOps).
• Knowledge of development lifecycle, standards, approaches, utilities and environment: shells, version control systems, IDEs, project assembling tools;

Responsibilities:

• Participate in requirement, design, implementation, testing and support of custom banking solutions, which include features enhancements, new functionalities, and back-end systems integration.
• Define and manage resource plan together with the Project Manager aligning to the project schedule.
• Plan and drive the project's technical execution to achieve the committed scope and timeline.
• Monitor and report technical execution progress as well as all technical issues, risk or mitigation plan in a timely manner.
• Ability to coordinate multi-teams (e.g. customers, internal functional and technical SMEs), to understand business requirements, technical design and preparing of technical specifications.
• Assist in estimation of efforts and timescales for tasks delegated to the team.
• Contribute to design/code reviews for quality assurance and conformance to Company standards / guidelines.
• Hands-on participate in development and bugs fixing.
• Commit to continuous improvement and refinement of delivery.
• Strong technical knowledge and skills, consistently provide technical guidance and develop team members.
• Responsible for forward resource management, team building and staff career growth.

Requirements:

• Degree in Computer Sciences / Software Engineering / Information Technology.
• At least 5 years of working experience in Java EE development (preferably in the financial industry).
• Individual that is optimistic, proactive, good initiative, passionate, strives to achieve more as a team, and is able to motivate others.
• Understand design documentation standards such as Unified Modelling Language.
• Experience in various Java EE frameworks and design patterns. Preferably on Micro services architecture.
• Exposure in Java MVC frameworks such as Spring Boot.

Role : Full-time 

Remote / work from home 

Interested, kindly respond with the following : 

Total relevant years of experience : :

CTC:

ECTC : 

Notice Period:

•  4-8 years of relevant experience in designing & developing and architecting systems/software
• for large business environments (Java, J2EE).
• • Strong design and coding skills in Enterprise Java, Hibernate, Spring, Spring Boot, REST web
• services, JMS (ActiveMQ), XML, JSON.
• • Must have good experience in Unix/Oracle/SQL.
• • Experience in any communication framework (MQ) is an added advantage.
• • Experience in Agile Development, Scrum, and Iterative approaches
• • Participate in requirement gathering JAD sessions and support documentation

• Java/J2EE, Spring, Spring Boot, REST, JSON, Micro Services, 12 Factor Apps, Apache.
• Strong understanding of microservice architecture
• Ability to design, develop and implement scalable, elastic microservice based platforms.
• Demonstrated knowledge of OAuth token-based authentication protocol.
• Demonstrated knowledge of PCI and Security Coding Standards.
• Performs hands on coding using Java/J2EE & unit testing.
• Contribute to the Design and develop high quality software for large scale Java/Spring Batch/Micro-service Applications.
• Proficiency in the following general areas: Java (Java 1. 7/Java 1. 8), Spring Framework, Jenkins, Gradle, and GitHub.
• Experience with RESTful services, Rabbit MQ, JSON, Unix Scripting, and Hadoop is a plus.
• Core development experience in large scale enterprise Java applications using Spring Framework.
• Experience in SQL (DB2 & SQL databases)
• Strong knowledge and experience on Nginx as APIM tool Solid experience in coding and creating APIs.
•  Expertise in WSDL, XML, XSLT, JSON, XPATH and Gateway scripts
• Provide front line support for Nginx related problems by being involved in troubleshooting, root cause analysis and appropriate secure integration recommendations.
• Installation of Nginx API Gateway as per need.
• Experience in Containers and Kubernetes.
• Good linux and administration skills
• Experience on API Orchestration/Mediation/Protocol Bindings and transformation knowledge on disparate message structures
• Design, develop and implement API proxies using OpenAPI specification Analysing logs and trace for errors and exceptions Manage and publish content in Developer portal Security implementation using OAUTH, SAML, CORS 
• Must Have Knowledge of API development and its technologies.

Location: Remote Working

** Preference will be given to immediate joinee

Full Stack Engineer

Front End Technology:

• Minimum 2+ years’ experience in working web development technologies

• Experience writing modular/reusable code and using modern JS frameworks / libraries like

React or other comparable frameworks or toolkits

• Strong expertise with HTML5, CSS, and writing cross-browser compatible code.

. Experience with Responsive Frameworks like Bootstrap / Flex.

• Strong knowledge of Object-Oriented Design concepts.

Back end Technology:

• Have extensive experience in designing a backend stack of the product

• Strong understanding of Data Structures / Algorithms.

• Minimum of 2+ years of experience in Writing Backend Microservices in Node

JS/Python

• Ability to build the product from scratch & drive it to completion

Responsibilities and Duties:

• Design and build a next-generation product that drives the business and meets the functional

needs of our customers and partners.

• Designing overall architecture of the web/ mobile application

• Maintain quality and ensure responsiveness of applications

• Optimize web applications to maximize speed and scale. Support diverse clients from high

powered desktop computers to small footprint mobile devices.

• Write client-side/backend code for web-based applications, create fast, easy-to-use, high

volume production applications, and develop prototypes quickly.

• Build reusable code and libraries for future use

• Develop application code and unit test (Karma, Mocha, Chai).

• Ensuring high performance and security of web apps developed.

Employment Type

Full-time

Job Functions:

• Engineering

• Information Technology

Skills

• Object-Oriented Programming (OOP)

• JavaScript

• Data Structures

• Front-end Development

• Algorithms

• React js
• Express js

• Swagger

• Github

Qualifications

• Experience in building scalable systems.

• Exposure in building and using reusable code and libraries.

• Candidates should proactively keep their knowledge and skills up to date.

• Candidates should be able to work in a fast-paced environment independently and as part of a team.

• Candidates should be able to work in a highly collaborative environment with excellent communication skills.

Other Skills:

• Excellent written and verbal communication skills.

• Ability to work in a dynamic, fast-moving, and growing environment.

• Critical thinker and problem-solving skills. Should be able to strategize immediately.

• Strong knowledge of web application architectures, trends, and emerging technologies.