Senior Software Engineer

Tech Stack

Frontend: React.js, TypeScript, Next.js, React Native, Redux, GraphQL, Tailwind CSS

Backend & Infra: Java (Spring Boot), Microservices, AWS ECS, Redis, ScyllaDB, MongoDB,

GraphQL, AWS Lambda, MySQL, Aurora

Event Driven & AI: SQS, Kinesis, Claude, Cursor, LangChain

Observability: Prometheus, Grafana, CloudWatch, Sentry

Engineering Excellence: JVM tuning, GC profiling, Circuit Breakers, Async Tracing

We’re hiring an experienced Full Stack Engineer (React + Java) with 5–10 years of

experience to design, build, and scale real-time web applications for our global B2B

hotel marketplace.

You’ll work across the stack—from building intuitive, data-driven UIs to

high-performance backend services that power our distribution engine.

Responsibilities

● Build and maintain end-to-end features spanning React.js frontends and Java

(Spring Boot) microservices and database integrations .

● Develop responsive, performant, and accessible UIs integrated with REST

and GraphQL APIs.

● Design and scale low-latency, high-throughput microservices for real-time

data workflows.

● Implement event-driven systems using Kafka or SQS for asynchronous

communication.

● Collaborate closely with Product, Design, and Architecture teams to translate

business requirements into scalable technical solutions.

● Optimize application performance via caching strategies, async processing,

and database tuning.

● Implement and maintain CI/CD pipelines, test automation, and monitoring

frameworks.

● Leverage AI-assisted tools (Claude, Cursor, etc.) to boost velocity and maintain

code quality.

● Participate in code reviews, design discussions, and architecture decisions.

● Write clean, maintainable code, follow design patterns, maintain high test

coverage, and document key technical decisions.

Requirements

● 6–10 years of full stack development experience with a proven track record in

production systems.

● Strong proficiency in React.js, JavaScript/TypeScript, Redux (or similar state

management) and modern frontend frameworks.

● Solid backend experience with Java, Spring Boot, and Hibernate.

● Database experience with MySQL, MongoDB, or ScyllaDB.

● Hands-on with microservices, AWS (ECS/Lambda), SQS, and GraphQL.

● Familiarity with event-driven architectures and caching layers (Redis) and

asynchronous processing.

● Working knowledge of observability tools (Prometheus, Grafana, CloudWatch,

Sentry).

● Understanding of data structures, algorithms, and system design

fundamentals.

● Passion for clean code, testability, and engineering excellence.

● Strong analytical and communication skills with the ability to collaborate across

Product, Design, and QA teams.

● Comfortable in a remote-first, asynchronous, and ownership-driven culture.

Nice to Have

● Experience with React Native or mobile web frameworks.

● Exposure to Kafka, Kinesis, or other event-streaming platforms.

● Familiarity with CI/CD (GitHub Actions, Docker) and container orchestration

(ECS).

● Experience with AI-assisted development, LLMs, or LangChain pipelines.

● Domain exposure to B2B platforms, travel-tech, or high-scale marketplaces.

● Background in Test-Driven Development (TDD) or Agile methodologies.

Why Join Us?

● Work on mission-critical, high-scale systems used by global hotel brands.

● Build real-time, low-latency products impacting millions of hotel transactions

daily.

● Be part of a remote-first, AI-accelerated engineering culture that values

autonomy and quality.

● Collaborate with senior engineers and architects solving complex distributed

system challenges.

● Competitive compensation with equity participation and career growth

opportunities.

● Learn and work with cutting-edge AI tools—from code generation to

observability automation.

About Us:

Wissen Technology is a leading provider of innovative technology solutions. We are committed to delivering excellence and fostering a collaborative environment where our employees can grow and thrive. We offer a dynamic work culture, exciting career growth opportunities, and a balanced work-life approach.

Job Description:

We are looking for a talented and motivated Java Developer to join our team in Mumbai. As a Java Developer at Wissen Technology, you will work on cutting-edge projects and contribute to building scalable and efficient applications. If you have a passion for technology, thrive in a fast-paced environment, and have experience with Angular, we want to hear from you!

Details:

• Location: Mumbai, Maharashtra  
• Address: Wissen Technology, Times Square, 07 Floor, Andheri - Kurla Rd, Gamdevi, Marol, Andheri East, Mumbai, Maharashtra 400059
• Type: Hybrid mode of work

Requirements:

• Education: BTech, BE, or MCA
• Skill Set: Full Stack Java Developer with proficiency in Angular.
• Prior experience working with Angular and willingness to continue working with it.
• Strong understanding of web application development and design principles.
• Excellent problem-solving skills and attention to detail.
• Ability to work independently as well as in a team environment.

Responsibilities:

• Develop, test, and maintain web applications using Java and Angular.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Troubleshoot and resolve software defects and issues.
• Ensure the performance, quality, and responsiveness of applications.
• Stay updated with emerging trends and technologies in software development.

Benefits:

• Competitive salary and good appraisals.
• Career growth opportunities.
• A healthy work-life balance.
• Collaborative and supportive work environment.

Join Wissen Technology and be a part of a team that values innovation, collaboration, and professional growth. We look forward to welcoming you on board!

Java Fullstack Developer – Job Description

We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.

Experience: 5+ years

Location: Bangalore

Job Description:



• Experience in Core Java, Spring Boot.

• Experience in microservices.

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2

• Good knowledge of multi-threading

• Basic working knowledge of Unix/Linux

• Excellent problem solving and coding skills in Java

• Strong interpersonal, communication and analytical skills.

• Should be able to express their design ideas and thoughts.

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array ofservicesincluding Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

• We are a Product Development Company  and in Recent years as covid continues. Demand for Digitalisation of Producsts and business has shot up
• We are looking for a Full stakc Developer - Who can manage teams of Developers. Understand requirements and convert to Tech Products 
• Your Responsiblities would be 
  1. Manage Teams of Developers on Different Projects ( FrontEnd, Backend and App) 
  2. Daily Check-in with proper teams, solving/guiding  their issues and liason with Stakeholders on project status and delivery schdule 
  3. Convert / Capture requirements and Propose Archiecture, Data Flow, Database Design, API Lists involved, Pages to be developed in frontend.  
  4. Manage multiple projects  / teams of Developers 

Job Title: Senior Full Stack Developer 

Location: Chennai / Coimbatore 

Position Type: Full-Time 

About Us: 

At Justo Global, we are dedicated to empowering Small and Medium Enterprises (SMEs) around the world through our primary driver’s technology, data, and media. Our primary objective is to establish a global platform that effectively connects SMEs from India, developing countries, and beyond to the international market. Our mission revolves around creating an inclusive environment where SMEs can leverage the power of technology, data, and media to drive their success. 

What We’re Looking For: 

Minimum 5 - 8 years of work experience in Software application development. 

• 3+ Years of experience as a full stack developer with experience in the design and implementation of UI using React.js. 
• 5+ Years of experience in developing APIs using Node.js, and having experience with Golang will be an added advantage. 
• Proven experience in React design guidelines, SDK, and excellent JavaScript skills. 
• Experience working with SQL and NoSQL-based databases such as Oracle, MySQL, PostgreSQL, MongoDB. 
• Familiarity with API security models including but not limited to OAuth, JSON Web Token, Digital Certificates, Basic Authentication, and OpenID. 
• Exposure to DevOps culture with hands-on experience in Jenkins for CI/CD would be an added advantage. 
• Knowledge of containerization utilizing Docker and Kubernetes will be an added advantage. 

Responsibilities: 

• Demonstrate a strong sense of ownership and responsibility with release goals. This includes understanding requirements, technical specifications, design, architecture, implementation, unit testing, builds/deployments, and code management. 
• Ensure compliance through the adoption of enterprise standards and promotion of best practice / guiding principles aligned with organization standards. 
• Build and maintain the environment for speed, accuracy, consistency, and ‘up’ time. 
• Hands-on position requiring strong analytical, architectural, development, and debugging skills that includes both development and operations. 
• Developing front-end website architecture and designing user interactions on web pages, ensuring the responsiveness of applications. 
• Developing back-end APIs and creating servers and databases for functionality. 
• Working alongside graphic designers for web design features. 
• Designing and developing APIs meeting both technical and consumer needs. 

The Team: 

You will be part of an exciting talent group, where we have a dynamic team of engineers to solve the many challenges and puzzles of our rapidly evolving technical stack. We’re seeking a Senior full stack developer who is ready to work with new technologies and architectures in a forward-thinking organization that’s always pushing boundaries. This person will have complete, end-to-end ownership of projects. The ideal candidate has experience building products across the stack and a firm understanding of web frameworks, APIs, databases, and multiple back-end languages. The full stack developer will join a small team that uses new technology to solve challenges for both the front-end and back-end architecture, ultimately delivering amazing experiences for global users.