Fullstack Developer

7+ years of experience in Python Development

Good experience in Microservices and APIs development.

Must have exposure to large scale data

Good to have Gen AI experience

Code versioning and collaboration. (Git)

Knowledge for Libraries for extracting data from websites.

Knowledge of SQL and NoSQL databases

Familiarity with RESTful APIs

Familiarity with Cloud (Azure /AWS) technologies

About Wissen Technology:

• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.

• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.

• Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.

• Globally present with offices US, India, UK, Australia, Mexico, and Canada.

• We offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

• Wissen Technology has been certified as a Great Place to Work®.

• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Website : www.wissen.com

Experienced Senior Full Stack Engineer to Build & Backend for Event Ticketing Platform Using Claude Code

Overview

We have the frontend already built in Replit for both user and admin experiences. We are looking for a very experienced software engineer to design, build, and scale a production ready backend for a high concurrency event ticketing platform.

This role is for a true senior engineer who actively uses Claude Code as part of their daily development workflow, understands how to review and harden AI assisted output, and can ship systems that hold up under real world load, QA, and security testing.

This is not a prototype or demo system. This backend must be reliable, scalable, secure, and extremely well documented.

What You Will Be Building

• Backend services for an event ticketing platform

• Multi tenant architecture supporting thousands of organizers and events

• High concurrency purchase and checkout flows

• Secure user, admin, and system level access controls

• Production deployments with secrets management, middleware, and security layers

• Observability, logging, and metrics suitable for QA and load testing

• A thoroughly documented backend that future engineers can onboard into quickly

Core Engineering Requirements

• 10 plus years of professional software engineering experience

• Expert level experience using Claude Code or equivalent AI coding agents in real production workflows

• Deep experience building backends with Node.js

• Strong experience with Supabase and PostgreSQL

• Experience deploying and scaling applications on Vercel

• Proven experience extending existing codebases safely

• Strong API design and database performance fundamentals

• Ability to reason clearly about concurrency, transactions, and failure modes

Scalability and Performance Expectations

The backend must be designed to support:

• Hundreds of thousands of ticket purchases

• Thousands of concurrent users and tenants

• Large traffic spikes during on sale windows

• Load testing across all major latency percentiles including p90, p95, and p99

• Extremely low tail latency under high concurrency

• Graceful degradation and recovery under stress

You should be comfortable designing and implementing caching strategies, queue based workflows, idempotent operations, locking mechanisms, and transactional safety.

Security and Production Readiness

You must be able to:

• Set up production environments with proper secrets management

• Implement middleware for authentication, authorization, and rate limiting

• Design secure communication between frontend and backend

• Apply industry best practices for security hardening

• Prepare the system to pass penetration testing

• Maintain clean separation of concerns and least privilege access

Documentation and Developer Experience Requirements

High quality documentation is a hard requirement for this role.

You must have experience:

• Using AI powered documentation tools to generate and maintain technical documentation

• Producing clear architectural overviews and system diagrams

• Writing detailed README files and onboarding guides

• Documenting APIs, data models, and critical flows

• Keeping documentation in sync with code changes over time

We expect the backend to be easy to understand, easy to extend, and well explained for future engineers.

How We Evaluate Candidates

We are looking for engineers who can demonstrate:

• Real production systems they have built or scaled

• Clear judgment in how they use Claude Code and validate AI generated output

• Strong opinions on production readiness backed by experience

• The ability to move fast without sacrificing quality or safety

A short paid technical task may be used that involves real backend work with production quality code and documentation.

Beyond strong technical ability and cultural fit, we are looking for someone who demonstrates:

• Minimum 1 year of professional web development experience
• A portfolio showcasing real-world projects or contributions (personal or professional)
• Strong foundation in HTML, CSS, and JavaScript, with working experience in modern frameworks
• Practical experience with React (mandatory)
• Ability to build responsive, user-friendly interfaces with attention to UX best practices
• Experience integrating APIs and working with JSON-based data
• Familiarity with version control systems such as Git
• Basic understanding of backend concepts, preferably with exposure to Node.js, Java, or Python
• Ability to debug, troubleshoot, and improve existing codebases
• Good understanding of performance optimization and cross-browser compatibility
• Strong time management skills with the ability to handle multiple tasks effectively
• Excellent communication and teamwork skills, with a proactive and learning-oriented mindset

Senior Software Engineer

Location: On-site, Panaji, Goa

About Joyful

Joyful is a leading AI-powered stakeholder communication management platform for voice of stakeholder analysis and contact center solutions. Our mission is to use AI to make all interactions between a company and its stakeholders joyful by removing friction. Joyful is a part of Germinait Solutions Pvt. Ltd.

Our  Joyful modules, Engage and Listen, help businesses understand and manage stakeholder interactions across digital channels. We enable companies to provide exceptional customer experiences while maximizing the productivity and efficiency of their support teams, all through one seamless platform.

At Joyful, we're committed to fostering meaningful interactions between stakeholders and brands by providing actionable insights, personalized replies, and a joyful experience for customers, users, and employees alike.

The Opportunity

We’re seeking a Senior Software Engineer who thrives on solving complex problems, architecting scalable systems, and bringing innovative AI-powered features to life. You will work on a modern, cloud-native stack—leveraging serverless deployment, microservices, and AI/ML integrations to build resilient, high-performance solutions.

In addition to delivering high-quality code, you’ll contribute to Joyful’s Vibe Coding culture—our approach to writing code that’s clean, collaborative, and a joy to work with.

What You'll Do

• Backend & Cloud Development
• Design, develop, and maintain scalable microservices for Joyful’s Engage and Listen platforms
• Build serverless applications and functions (AWS Lambda, Azure Functions, or GCP Cloud Functions) for rapid, cost-effective deployments
• Implement robust APIs and data pipelines optimized for performance and reliability
• Ensure security, compliance, and data privacy in all backend services
• AI-Powered Solutions
• Integrate AI/ML models into production workflows to enhance automation, personalization, and analytics
• Collaborate with data scientists to operationalize AI models for real-time and batch processing
• Build features that leverage NLP, sentiment analysis, and predictive analytics for stakeholder communication insights
• Vibe Coding Culture
• Write clean, well-structured, and maintainable code that engineers enjoy working with
• Participate in pair programming, peer reviews, and collaborative debugging sessions
• Share best practices and mentor junior engineers to raise the technical bar across the team
• Help maintain a development atmosphere that’s positive, creative, and focused on continuous improvement
• DevOps & Deployment
• Work closely with DevOps teams to optimize serverless deployments, CI/CD pipelines, and automated testing
• Ensure observability, monitoring, and alerting systems are in place for all deployed services
• Contribute to cost optimization strategies for serverless architectures
• Collaboration & Problem-Solving
• Partner with product managers, architects, and designers to translate business requirements into technical solutions
• Participate in sprint planning, backlog refinement, and retrospectives
• Troubleshoot production issues and drive root cause analysis for lasting fixes

What You'll Need

• 3+ years of experience in software development, preferably in SaaS or AI-driven products
• Strong expertise in backend development using Java (Spring Boot), Node.js, or Python
• Experience with serverless architectures (AWS Lambda, Azure Functions, or GCP equivalents)
• Solid understanding of cloud services (AWS, Azure, or GCP) and microservices design patterns
• Hands-on experience integrating AI/ML models into applications
• Familiarity with NLP, speech-to-text, or sentiment analysis APIs is a plus
• Knowledge of relational and NoSQL databases (PostgreSQL, DynamoDB, MongoDB, etc.)
• Experience with CI/CD pipelines, automated testing, and monitoring tools
• Strong problem-solving skills and ability to work in fast-paced, collaborative environments
• Passion for clean, maintainable code and contributing to a healthy team culture

Why Join Joyful?

• Work on AI-powered solutions that transform how businesses connect with their stakeholders
• Be part of a team that embraces serverless-first development and modern cloud-native architectures
• Thrive in a Vibe Coding culture where great engineering meets great energy
• Collaborate with talented peers in a supportive, innovation-driven environment
• Enjoy professional growth opportunities in a fast-scaling company
• Work from our beautiful Goa office while building solutions used worldwide

At Joyful, we believe that combining AI innovation, scalable cloud design, and a joyful coding culture leads to exceptional products. If you’re passionate about building intelligent, high-performance systems while keeping the engineering vibe positive, we’d love to hear from you!

Job Description:

As a Backend Developer, you will:

• Implement server-side logic to ensure high performance and responsiveness to requests from the front-end.
• Integrate machine learning models for fraud detection, enhancing the security and reliability of our applications.
• Manage database operations, ensuring the integrity, security, and efficiency of data storage and retrieval.
• Collaborate with cross-functional teams to develop and maintain scalable, robust, and secure applications.

Responsibilities:

• Development of all server-side logic, definition, and maintenance of the central database.
• Ensuring high performance and responsiveness to front-end requests.
• Integrating data storage solutions, including databases, key-value stores, blob stores, etc.
• Implementing security and data protection measures.
• Integrating machine learning models for advanced data processing and analysis.

Key Performance Indicators (KPI) For Role:

• Quality and efficiency of backend systems developed.
• Effectiveness in integrating and deploying machine learning models.
• Database performance and security measures.
• Positive feedback from team members and stakeholders.
• Adherence to coding standards and best practices in backend development.

Prior Experience Required:

• Minimum 3+ years of backend development experience.
• Proficient in Node.js or Python (especially Django and Flask frameworks), or/and Go.
• Strong database management skills with both SQL and NoSQL databases.
• Experience in integrating and deploying machine learning models for real-world applications, specifically for fraud detection is highly desirable.
• Familiarity with RESTful API development and microservices architecture.
• Good understanding of asynchronous programming and its workarounds.
• Experience with cloud services (AWS, Azure, GCP) and serverless architectures.

Location:

Hyderabad

Collaboration:

The role involves close collaboration with frontend developers, data scientists, and project managers to ensure the seamless integration of backend services with front-end applications and data analytics models.

Salary:

Competitive, based on experience and market standards.

Education:

• Bachelor's degree in Computer Science, Information Technology, or a related field.

Language Skills:

• Strong command of Business English, both verbal and written, is required.

Other Skills Required:

• Strong analytical and problem-solving skills.
• Proficient understanding of code versioning tools, such as Git.
• Ability to design and implement low-latency, high-availability, and performant applications.
• Knowledge of security compliance and integrated security protocols.
• Familiarity with continuous integration and continuous deployment (CI/CD) pipelines.
• Experience with containerization technologies (Docker, Kubernetes) is a plus.

Other Requirements:

• Proven ability to work in a fast-paced, agile development environment.
• Demonstrated ability to manage multiple projects simultaneously and meet deadlines.
• A portfolio showcasing successful backend projects.

Responsibilities : 

• Work with development teams and product managers to ideate software solutions. 
• Develop and maintain scalable software solutions with Ruby on Rails as the core technology stack.
• Develop strong analytical and problem-solving skills to tackle challenges in development. 
• Utilize Docker containers for efficient environment management and deployment.
• Test software to ensure responsiveness and efficiency. 
• Implement and maintain database solutions in MySQL and PostgreSQL
• Test and ensure that the application works correctly across different browsers and devices. 
• Build and optimize user interfaces using React.js with a focus on performance and user experience.
• Integrate multiple data sources and databases into one system
• Ensure robustness, performance, and security of the applications.
• Take full responsibility for project deliverables from conception to deployment.
• Design user-side and server-side architecture. 
• Maintain code integrity and organization, including performing code reviews and enhancing code quality.

Requirements :

• Demonstrable skills with Node.js and React.js, building and maintaining complex solutions.
• Experience with Docker and containerized environments.
• Strong knowledge of MySQL and/or PostgreSQL.
• Excellent debugging and problem-solving skills.
• Capacity to work effectively both as an individual contributor and within a collaborative team environment.
• Eagerness to take full ownership of deliverables, ensuring high-quality outputs.
• Great attention to detail Organizational skills. 

Qualifications : 

• Internship or 6 months experience as a full stack developer working with ruby on rails.
• Experience developing and deploying dynamic and responsive web applications.
• Strong communication skills, detail-oriented mindset, and a passion for delivering high-quality software. 
• A bright and passionate mind with relevant prior experience in web development (frontend, backend and database management) is welcome to apply. 
• Ability to thrive in a fast-paced work environment, adapting to varying demands with resilience.

Job Description:

1. Design, implement and deliver custom solutions using the existing robotics framework.
2. Debug issues, do root-cause analysis and apply fixes.
3. Design and implement tools to facilitate application development and testing.
4. Participate in architectural improvements.
5. Work with team members in deployment and field testing.

Requirements:

1. Bachelor Degree / Masters in Engineering (ECE or CSE preferred)
2. Work experience of 10+ years in software programming.
3. Proficiency in Python programming for Linux based systems.
4. Full understanding of software engineering.
5. Basic Knowledge of Robot Operating System(ROS) is a plus.
6. Good understanding of the algorithms and control loops.
7. Working knowledge of Git: creating, merging branches, cherry-picking commits, examining the diff between two hashes. Advanced Git usage is a plus.
8. Knowledge of video streaming from edge devices is a plus.
9. Thrive in a fast-paced environment and have the ability to own the project’s tasks end-to-end with minimum hand-holding
10. Learn and adapt new technologies & skills. Work on projects independently with timely delivery & defect free approach.

What is FCG? 

FCG, a product-based technology consulting company serving top North American clients and providing the most innovative technology solutions from the past 10 years in the domain of Utility, gas pipeline, roadways and permitting systems. We are made up of more than 50+ software professionals and researchers (and growing) who live and breathe technology. With our core principles and values, we always believed in challenging ourselves to bring out the best products and to constantly improve and invest in latest technologies such as Cloud Computing, Dev-Ops, GIS, Big Data and Analytics.

We are an STPI unit operating from IT park Bhopal with high end infrastructure and due to COVID-19 we are providing the work from home.

Why work at FCG?

FCG is on a mission to create a place where you can learn and grow, where your ideas are valued and where you can do cool things, all while contributing to the larger success of the company. At FCG we incorporate and promote a culture of creativity, innovation, and collaboration to allow everyone to do their best work every day. Our core management team aims to provide you very friendly environment with guidance at every step.

Education

Bachelor's/Master’s degree in Computer Science/ Information Technology with overall high academics.

Experience

3- 5+ years of experience as a .Net Application/Software Developer

Job Requirements

The Software Developer must be able to demonstrate the following skills and experience (either through in an internship, previous employment, or in a college project):

• Bachelor’s Degree or higher in Computer Science or equivalent field
• 3-5+ years of experience with C#, .NET 3.5 and above framework, Visual Studio 2012 and above, http://asp.net/">NETWeb Forms, and IIS 6/7; Familiarity or experience with server design/architectural patterns (e.g. Model-View-Controller (MVC)), and general Server-Side Development (e.g. ASP.Net, SQL Server, Oracle, PHP)
• Experience with SQL, JavaScript, AJAX, JSON, jQuery, HTML/HTML5, CSS/CSS3, JSON Requests, Responsive Web Development, and cross browser development is a PLUS.
• Experience in other languages such as mobile based (Objective-C, Java, Swift, etc.) is a PLUS.
• Experience with GIT, Subversion, or similar version control systems.
• Understanding of Design Patterns and Object-Oriented Concepts.
• Experience with the software development lifecycle (SDLC), including requirements analysis, development, production deployment and maintenance; Experience or understanding of working in an Agile environment

• Ability to function well in a collaborative, team-oriented environment.
• Ability to write technical documentation for internal or external developer/technical audiences.
• Applicant must possess good written and spoken English language skills (fluent or highly conversant in English).

Role & Responsibilities

Depending on current project needs, responsibilities could entail any of the following:

• Translate application storyboards and use cases into architecture concepts and pseudocode
• Design, build, and maintain efficient, reusable, and reliable C# code by writing clean, scalable code using Object Oriented Programming Principles (OOP) and our defined Development Standards guide
• Ensure the best possible performance, quality, and responsiveness of applications by identifying any observed bottlenecks and bugs, and suggesting solutions / technical alternatives to mitigate and address these issues; Make recommendations and/or changes towards the development of new code or reuse of existing code, and improve/streamline processes and systems
• Support projects through entire Software Development Lifecycle (SDLC) by participating in the requirements analysis and research gathering (R&D) process, and/or writing documentation such as technical specifications, user guides, and other forms of documentation.
• Interact with team members (end-users, testers, distributors, analysts and project/release managers) in a team-oriented fashion
• Follow software development methodologies and best practices
• Ensure system improvements and tickets are successfully implemented through following up with developers and QA team

• The candidate should expect to work in a global virtual team spread across North America and India team members, sometimes across multiple time zones.

• The candidate may be assigned to more than one role or project at a time.
• Our ideal candidate will be a self-motivated team player committed to delivering on time and should be able to work with minimal supervision.

This is regarding .Net Core Developer/Lead opportunity we have with us and we are looking for immediate joiner.

Please find below the job description for your reference:

Required Skills:

• Good understanding of SOLID principles or Object oriented programming concepts
• Working knowledge of design patterns
• ASP.Net Core MVC & Razor
• REST API
• SQL
• Unit testing

Nice to have:

• RabbitMQ or experience working with any message oriented systems
• HTML, Javascript & CSS
• C#7 and above
• Docker
• SSRS
• Quartz or Hangfire

FYI. There will be a small coding ‘test’ during the interview