
Job Description – System Architect / Solution Architect (IoT & MQTT Platform)
Location: Bangalore
Experience: 10 to 15 Years
Job Summary
We are looking for an experienced System Architect with strong expertise in C/C++ or Go along with hands-on experience in MQTT and IoT platforms. The candidate will be responsible for designing scalable distributed systems, microservices architecture, and device communication frameworks for high-volume IoT ecosystems.
Key Responsibilities
- Design and architect scalable backend systems using C/C++ or Go
- Define microservices architecture and distributed system design
- Work on MQTT-based communication and IoT device integration
- Design REST/gRPC APIs and inter-service communication
- Build reliable, high-throughput and low-latency systems
- Define event-driven communication patterns and messaging architecture
- Collaborate with engineering teams for architecture reviews and technical guidance
- Drive system performance optimization and scalability improvements
- Work closely with cloud, database, and platform engineering teams
- Define coding standards, best practices, and reusable design patterns
Mandatory Skills
- Strong hands-on experience in C/C++ or Go
- Strong experience with MQTT protocol or IoT Platforms
- Deep understanding of Microservices Architecture
- Experience in Distributed Systems Design
- Strong backend development experience
- Experience with REST APIs / gRPC
- Knowledge of Message-Driven Architecture
- Experience with TCP/IP communication
- Strong understanding of PostgreSQL / Relational Databases
Good to Have
- Experience with AWS or Azure Cloud
- Exposure to Event-Driven Architecture
- Experience in SaaS or Multi-tenant platforms
- Knowledge of high-volume data processing systems
Preferred Candidate Profile
- 10–15 years of overall software development experience
- Prior experience as System Architect / Solution Architect
- Strong problem-solving and system design capabilities
- Excellent communication and stakeholder management skills

About Wissen Technology
About
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.
With offices in 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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We are seeking an experienced Senior Systems Operations Engineer with 6+ years of experience in Application Production Support, Systems Operations, and Incident Management. The ideal candidate will be responsible for maintaining the stability, availability, and performance of production applications and infrastructure while ensuring adherence to ITIL processes and operational excellence.
The candidate should possess strong expertise in Linux/Unix administration, SQL/Oracle Database support, Production Issue Analysis, Incident & Change Management, and monitoring tools such as Splunk, Grafana, and AppDynamics. The role requires excellent troubleshooting skills, stakeholder communication, and the ability to lead critical incident resolution activities in a 16X7 production environment.
Key Responsibilities:
• Provide advanced production support for critical business applications, ensuring high availability and performance.
• Lead incident and change management processes, including root cause analysis and resolution of production issues.
• Monitor application health using tools such as SPLUNK, Grafana, and AppDynamics.
• Collaborate with development, infrastructure, and business teams to drive continuous improvement in system operations.
• Maintain and optimize Linux/Unix environments and SQL/Oracle databases.
• Document operational procedures, troubleshooting steps, and best practices.
Required Skills:
• Strong experience with Linux/Unix system administration.
• Advanced proficiency in SQL and Oracle database management.
• Expertise in incident and change management within enterprise environments.
• Proven ability to analyse and resolve production issues efficiently.
• Hands-on experience with monitoring and alerting tools: SPLUNK, Grafana, AppDynamics.
• Excellent communication and collaboration skills.
• Experience with cloud platforms (AWS, Azure, GCP)
Desired Candidate Profile
• 6+ years of experience in Application Production Support and Systems Operations.
• Proven experience managing mission-critical production environments.
• Strong expertise in Linux/Unix, SQL, Oracle Database, and monitoring tools.
• Demonstrated success in incident resolution, RCA preparation, and service improvement initiatives.
• Ability to work effectively in a fast-paced 16x7 production support environment.
• Exposure to AI tools and implementation as well
A Day in the Life:
- A Day in the Life Collaborate with developers and product managers to understand feature requirements.
- Review feature specifications and design detailed test cases.
- Perform manual tests on payment gateway systems, including transaction flows and API validations.
- Identify, log, and track defects using tools like JIRA and prioritize them for resolution.
- Conduct regression testing to ensure system stability after updates.
- Participate in team discussions to troubleshoot and resolve issues.
- Document test results and prepare for upcoming sprint activities
Key Responsibilities:
- Key Responsibilities Develop and execute detailed test plans, test cases, and test scripts for web-based payment systems.
- Perform functional, regression, integration, UI, API, and end-to-end testing of payment gateway features.
- Test core modules including transaction processing, authentication, encryption, payment methods (Credit/Debit, UPI, Wallets, etc.), and refunds.
- Ensure compliance with standards such as PCI-DSS, ISO 8583, and EMV where applicable.
- Work closely with developers, product managers, and other stakeholders to understand requirements and raise quality issues.
- Identify, log, track, and manage defects in defect tracking tools (e.g., JIRA).
- Build and maintain automated test suites using tools like Postman, TestNG, RestAssured, etc.
- Validate integration with third-party payment processors and banks.
- Perform load testing and performance testing using tools like JMeter or LoadRunner.
- Ensure browser compatibility and mobile responsiveness testing
Basic Qualifications & Skills
- Minimum 3+ years of experience in manual and automation testing of web applications, with at least 1-2 years of experience in the payment gateway, fintech, banking, or e-commerce domains.
- Strong understanding of payment flow, transaction lifecycle, and settlement processes.
- Hands-on experience with API Collection API testing (REST/SOAP) and tools like Postman, SoapUI, etc.
- Proficiency in Java, and frameworks like TestNG or Cucumber.
- Experience with SQL for database validation.
- Familiarity with security testing practices and standards relevant to payment systems.
- Strong knowledge of software QA methodologies, tools, and processes.
- Excellent analytical and problem-solving skills.
- Good communication skills and the ability to work in agile/scrum environments.
Preferred Qualifications
- Experience in high-volume transaction systems with low-latency requirements.
- Knowledge of emerging payment technologies like blockchain, UPI, and real-time payments
- Hands-on experience with cloud platforms such as AWS, Azure, or Google Cloud.
- Familiarity with tools like Kubernetes, Docker, and CI/CD pipelines.
What We Offer
Opportunity to work on innovative fintech products in a fast-growing technology environment.
Collaborative culture with strong cross-functional teamwork. Opportunities for professional growth and career development
Company: Billion-dollar US-based Retail
About the Role:
We are seeking a talented and experienced Fullstack Engineer with a strong focus on frontend development to join our dynamic team. You will work with modern web technologies to design and implement highly scalable and user-friendly interfaces for our global e-commerce platform. This is a hybrid role requiring 3 days a week from the office and 2 days remote.
Key Responsibilities:
Develop and maintain high-performance web applications with a primary focus on frontend features.
Collaborate with designers, backend engineers, and product managers to deliver seamless user experiences.
Write clean, maintainable, and scalable code using React.js, Vue.js, and other modern frameworks.
Integrate and optimize backend services using Node.js and PostgreSQL.
Participate in code reviews, mentoring sessions, and team discussions to uphold engineering excellence.
Stay up-to-date with emerging trends and technologies in fullstack and frontend development.
Required Skills and Experience:
8+ years of professional experience in software development, focusing on fullstack engineering.
Strong proficiency in React.js and/or Vue.js for frontend development.
Solid understanding of Node.js for backend services.
Experience with relational databases like PostgreSQL.
Proficiency in building responsive, cross-browser-compatible, and accessible user interfaces.
Familiarity with agile development methodologies and version control systems like Git.
Excellent problem-solving skills and the ability to work effectively in a team-oriented environment.
Preferred Qualifications:
Previous experience in the retail/ E-commerce / and finance domain a plus.

Job Title: Bilingual Recruiter (English/French), Remote
Location: Fully Remote (Must be available to work across various Canadian time zones)
Employment Type: Full-Time
About the Role:
We’re looking for a motivated and adaptable Bilingual Recruiter fluent in both English and French. While some recruitment experience is preferred, what matters most is your eagerness to learn and grow under the guidance of a senior recruiter — and your commitment to creating exceptional experiences for both clients and candidates.
You’ll be supporting recruitment across a wide variety of industries and client types, giving you exposure to different roles, hiring styles, and organizational cultures.
- Key Responsibilities:Conduct full-cycle recruitment in English and French, including sourcing, screening, interviewing, and offer coordination.
- Ensure a full understanding of each client’s needs, business context, and expectations to deliver focused and effective recruitment support.
- Collaborate closely with clients and internal team members to create a positive and professional client experience marked by responsiveness, clarity, and results.
- Create a strong candidate experience by being respectful, organized, and transparent throughout the hiring journey.
- Work closely with a senior recruiter to build your recruitment skillset, gain mentorship, and grow your capacity over time.
- Maintain accurate documentation and workflows within our recruitment platforms and tools.
- Proactively contribute to team meetings, brainstorms, and shared files — bringing a team-first mindset to everything you do.
- What We’re Looking For:Fluency in English and French (spoken and written).
- Some experience in recruitment or talent acquisition (agency or in-house).
- Strong interpersonal, written, and verbal communication skills.
- A team player who collaborates, communicates well, and supports shared goals.
- A client-service orientation with a passion for understanding people and solving hiring challenges.
- Well-organized and comfortable managing multiple tasks and roles remotely.
- A desire to learn, grow, and build toward a senior recruiter path.
- What Success Looks Like:Timely, high-quality candidate placements.
- Consistent positive feedback from clients and candidates.
- Ability to manage competing priorities with professionalism and accuracy.
- Ongoing development and increasing confidence as a recruiter.
Tools & Technology:
We use a variety of modern recruitment tools and platforms to streamline sourcing, communication, and scheduling — including applicant tracking systems (ATS), candidate databases, scheduling tools, and internal collaboration platforms. While prior experience is an asset, we’re happy to train you on the systems we use.
Our Work Culture:
We believe in collaboration, curiosity, and doing the right thing — for our clients, our candidates, and each other. We’re supportive, flexible, and focused on delivering real results while enjoying the work we do.
● Building and maintaining micro services.
● Develop new features and improve existing features of the application.
● Coding, Implementing, Unit Testing and Documenting Typescript and Javascript based services.
● Design, build, and maintain efficient, reusable, and reliable code.
● Code reviews and ensuring adherence to software development standards.
● Contribute to team and organizational improvements in process and infrastructure.
● Participating in requirements gathering and functional specification activities.
● Resolving and helping to mitigate production issues.
What you need to be successful
● Has proven himself as a solid individual contributor and has some initial management ability
● Understands the culture and upholds it
● Well respected with the team
● Looking to grow more as a manager than as an engineer
● Split time b/w hands-on technical work and people management of a small team
● Be a role model for the people in your team
● Responsible for team mentorship, technical planning, resource allocation & project delivery
● Build solid working relationships with counterparts outside engineering
● If we shortlist you for a lead role, then you'll have to mentor SDE-1 towards their SDE-2 journey.
● Progress up to manager in 2-3 years
● Strong Data Structure and Algorithms
● Experience of building micro services architectures, developing RESTful services, continuous integration, unit and integration testing.
● Proficient with Express, Jest, Sinon and other Javascript frameworks apart from
RDBMS and NoSQL databases - PostgreSQL, MongoDB
● Gauge or other BDD frameworks and experience in Fintech would be preferred.
● Fintech experience - preferred
About APPSeCONNECT:
We are an enterprise committed to the vision of transforming modern-day businesses and amplify their growth trajectory by equipping them with innovative and futuristic tools. With our motto “We Connect. You Grow.”, we aim to help businesses operate more efficiently and grow faster.
Our product APPSeCONNECT is a next generation integration platform which connects various business applications and enables seamless data exchange between them. Trusted by over 800 Businesses across 75 Countries, we have benefitted organizations in their quest for unprecedented growth. To know more details about us, visit us at https://www.appseconnect.com/
APPSeCONNECT is looking for a talented QA automation engineer to design testing procedures for our software applications. This role will be responsible for analysing the functionality of applications and designing automated tests to validate their performance. You will also be required to identify bugs, install databases, and collaborate with the software design team.
Role: QA Automation Engineer
Key Responsibilities:
To ensure success as a QA automation engineer, you should have advanced programming skills, a keen eye for detail, and excellent architectural skills. A skilled QA automation engineer can design and write efficient test procedures for every software application
Roles & Responsibilities:
· Meeting with the product engineering team to discuss verification protocols.
· Identifying software application weaknesses and target areas.
· Sketching out ideas for automated software test procedures.
· Reviewing software bug reports and highlighting problem areas.
· Writing automation scripts and implementing software applications.
· Designing and installing software databases.
· Troubleshooting automation software and finalizing system procedures.
· Identifying quality issues and creating test reports.
· Collaborating with the design team to solve application faults
Requirements:
· 3+years relevant experience working as a QA automation engineer.
· Implementing and maintaining automated test suites for integration tests, API tests, UI tests, and system tests.
· Experience with browser-based UI automation and Selenium/Robot frameworks
· Experience with writing test plans and test cases
· Experience with HTML/CSS/JavaScript and React.js is a plus
· Experience with SaaS environment and/or Cloud Services is a plus
· Experience with API testing.
· Advanced programming skills including automation systems and databases.
· Familiarity with programming script languages including Java, JavaScript and C#..
· Excellent analytical skills.Detailed knowledge of application functions, bug fixing, and testing protocols.
· Strong attention to detail.
About Kloud9:
Kloud9 exists with the sole purpose of providing cloud expertise to the retail industry. Our team of cloud architects, engineers and developers help retailers launch a successful cloud initiative so you can quickly realise the benefits of cloud technology. Our standardised, proven cloud adoption methodologies reduce the cloud adoption time and effort so you can directly benefit from lower migration costs.
Kloud9 was founded with the vision of bridging the gap between E-commerce and cloud. The E-commerce of any industry is limiting and poses a huge challenge in terms of the finances spent on physical data structures.
At Kloud9, we know migrating to the cloud is the single most significant technology shift your company faces today. We are your trusted advisors in transformation and are determined to build a deep partnership along the way. Our cloud and retail experts will ease your transition to the cloud.
Our sole focus is to provide cloud expertise to retail industry giving our clients the empowerment that will take their business to the next level. Our team of proficient architects, engineers and developers have been designing, building and implementing solutions for retailers for an average of more than 20 years.
We are a cloud vendor that is both platform and technology independent. Our vendor independence not just provides us with a unique perspective into the cloud market but also ensures that we deliver the cloud solutions available that best meet our clients' requirements.
● Overall 8+ Years of Experience in Web Application development.
● 5+ Years of development experience with JAVA8 , Springboot, Microservices and middleware
● 3+ Years of Designing Middleware using Node JS platform.
● good to have 2+ Years of Experience in using NodeJS along with AWS Serverless platform.
● Good Experience with Javascript / TypeScript, Event Loops, ExpressJS, GraphQL, SQL DB (MySQLDB), NoSQL DB(MongoDB) and YAML templates.
● Good Experience with TDD Driven Development and Automated Unit Testing.
● Good Experience with exposing and consuming Rest APIs in Java 8, Springboot platform and Swagger API contracts.
● Good Experience in building NodeJS middleware performing Transformations, Routing, Aggregation, Orchestration and Authentication(JWT/OAUTH).
● Experience supporting and working with cross-functional teams in a dynamic environment.
● Experience working in Agile Scrum Methodology.
● Very good Problem-Solving Skills.
● Very good learner and passion for technology.
● Excellent verbal and written communication skills in English
● Ability to communicate effectively with team members and business stakeholders
Secondary Skill Requirements:
● Experience working with any of Loopback, NestJS, Hapi.JS, Sails.JS, Passport.JS
Why Explore a Career at Kloud9:
With job opportunities in prime locations of US, London, Poland and Bengaluru, we help build your career paths in cutting edge technologies of AI, Machine Learning and Data Science. Be part of an inclusive and diverse workforce that's changing the face of retail technology with their creativity and innovative solutions. Our vested interest in our employees translates to deliver the best products and solutions to our customers.
•Candidate should have basic communication and good convincing power.
•Candidate should be comfortable with calling.
•Lead generation, Ability to work in a team or individually as and when required.
•Outstanding problem solving skills.
•Have great interpersonal skills.
•Candidate should have strong organizational skills.
- Expertise in React tools including React.js, Webpack, Babel, Redux/Flux, React router.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Practised in any one CSS frameworks like material UI, Semantic UI, Bootstrap, ANT design.
- Experient working on web API like RESTful Web services, • Proficiency in using Graphql, WebSocket, webhooks.
- Should be able to design and build modern user interfaces to enhance application performance.
- Hands-on experience in browser-based debugging, performance testing software and deployment, with an attention to detail that supports the software development cycle.
- Experience with automated testing suites, like Jest or Mocha
- Experience in an Agile environment
- Strong analytical and logical skills, ability to work as an individual contributor
- Candidate must have in-depth knowledge of React JS, Node JS, MongoDB, JavaScript (ES6 and Type Script)
- Proficient with HTML, CSS - Master of jQuery and CSS3, less, Sass, Familiar with
- Proficient understanding of code versioning tools, build process such as And CI CD Process
- Familiar with Jira, Confluence and Agile development
- Knowledge of MVC's will add advantage
- Analytical & Problem solving skills
- Ability to work collectively towards team goals
- Responsible & Self starter who takes initiative
- Professionalism and team handling skills
- Good communication skills in verbal and written
- Understands the software development life-cycle process and a good team player
Responsibilities and Duties
As a Full stack developer, you are expected to deliver end to end assigned task. Primarily you would be working on JavaScript, ReactJS, Redux, Node JS, HTML, CSS and taking care of API integration.









