Backend Developer - Node JS

Java Technical Lead – 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: 10+ 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 has successfully 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 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. 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. 

Review Criteria

• Strong Senior Backend Engineer profiles
• Must have 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems
• Must have strong backend development experience using one or more frameworks (FastAPI / Django (Python), Spring (Java), Express (Node.js).
• Must have deep understanding of relevant libraries, tools, and best practices within the chosen backend framework
• Must have strong experience with databases, including SQL and NoSQL, along with efficient data modeling and performance optimization
• Must have experience designing, building, and maintaining APIs, services, and backend systems, including system design and clean code practices
• Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
• (Company) – Must have worked in product companies / startups, preferably Series A to Series D
• (Education) – Candidates from top engineering institutes (IITs, BITS, or equivalent Tier-1 colleges) are preferred

Role & Responsibilities

As a Founding Engineer at company, you'll join our engineering team during an exciting growth phase, contributing to a platform that handles complex financial operations for B2B companies. You'll work on building scalable systems that automate billing, usage metering, revenue recognition, and financial reporting—directly impacting how businesses manage their revenue operations.

This role is perfect for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems need creative solutions. You'll work on diverse technical challenges, from API development to external integrations, while collaborating with senior engineers, product managers, and customer success teams.

Key Responsibilities-

• Build core platform features: Develop robust APIs, services, and integrations that power company’s billing automation and revenue recognition capabilities
• Work across the full stack: Contribute to both backend services and frontend interfaces, ensuring seamless user experiences
• Implement critical integrations: Connect company with external systems including CRMs, data warehouses, ERPs, and payment processors
• Optimize for scale: Build systems that handle complex pricing models, high-volume usage data, and real-time financial calculations
• Drive quality and best practices: Write clean, maintainable code while participating in code reviews and architectural discussions
• Solve complex problems: Debug issues across the stack and work closely with teams to address evolving client needs

The Impact You'll Make-

• Power business growth: Your code will directly enable billing and revenue operations for fast-growing B2B companies, helping them scale without operational bottlenecks
• Build critical financial infrastructure: Contribute to systems handling millions in transactions while ensuring accurate, compliant revenue recognition
• Shape product direction: Join during our scaling phase where your contributions immediately impact product evolution and customer success
• Accelerate your expertise: Gain deep knowledge in financial systems, B2B SaaS operations, and enterprise software while working with industry veterans
• Drive the future of B2B commerce: Help create infrastructure powering next-generation pricing models from usage-based to value-based billing.

Job Description

Build and maintain bots on Azure platform.  Integration with Active directory, WEB API based integration with external systems. Training and Integrate bots as per users’ requirements. Work in line with design guidelines, best practices and standards of bot deliverable. Creative approach to the conversation flow design, human aspects in the bot responses and sentiments

Qualifications

1. a) 5 years of experience in software development with clear understanding of the project life cycle
   b) Min 2-3 years of hands-on experience in Microsoft Azure Bot Framework, LUIS and other Cognitive services offered by Azure
   c) Hands on experience with Machine Learning based chat bots
   d) Experience with Azure bot services like Text Analytics etc.
   e)Strong database skills and hands-on experience on databases like SQL Server/Oracle
2. f) Strong experience on Azure Active directory and adaptive cards integration in Chat bot.
3. g) Strong experience designing and working with

with service-oriented architectures (SOA) and WebAPIs.

1. h) A strong experience on Microsoft Azure, ASPNET / MVC and programming languages such as C#/VBNET
2. i) Knowledge of Python and NodeJS is a plus
3. j) Ability to design and optimize SQL Server 2008 stored procedures.
4. k) Experience with JQuery, CSS3, HTML5 or similar technologies.

Job Description: We are looking for a talented and motivated Go Developer Intern to join our team for a 6-month internship. This is an exciting opportunity to gain hands-on experience in Go development and work on real-world projects.

Key Responsibilities:

• Collaborate with the development team to design and develop Go applications.
• Write clean, efficient, and maintainable code following best practices.
• Assist in the integration of third-party APIs and libraries.
• Participate in code reviews and provide constructive feedback.
• Troubleshoot, debug, and resolve application issues.
• Stay updated with the latest industry trends and technologies in Go development.
• Document code and maintain technical documentation.

Requirements:

• Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or a related field.
• Strong understanding of Go and its standard library.
• Familiarity with RESTful APIs to connect Go applications to back-end services.
• Knowledge of Go concurrency patterns and best practices.
• Experience with version control systems such as Git.
• Strong problem-solving skills and attention to detail.
• Ability to work independently and as part of a team.
• Excellent communication and collaboration skills.

Roles & Responsibilities

- Writing good quality code.

- Be able to design ,implement and deploy scalable backend applications on cloud(AWS/Azure).

- Be able to take ownership of projects and deliver them on time.

- Be able to lead a team and mentor junior developers.

Qualifications:

- BE/BTech degree in CS/IT or similar related field.

- 4+ years experience as backend engineer.

- Good knowledge in Python and at least one of the framework - Django, Flask, FastAPI, etc.

- Hands on experience in building microservices applications on AWS/GCP/Azure.

- Good understanding of platforms(Docker, AWS/Azure).

- Must have good understanding of Data Structures/Algorithms/Databases and other CS concepts.

- Experience working in multiple databases and data modelling.

- Experience writing APIs and related technologies like REST, JSON, websockets, grpc etc.

- Should be inquisitive enough picking up any language and frameworks based on need.

- Should be able to design/implement/deploy end-to-end systems.

- Having good knowledge on deploying cloud applications and with Dockers/Kubernetes is a plus.

- Experience building end-to-end analytics systems is a plus.

𝗔𝗯𝗼𝘂𝘁 𝗖𝗲𝗿𝗰𝗹𝗲 𝗫

Cerclex is the one of leadinghttps://cerclex.com/"> waste management company in india which works as a digital technology platform for the waste management and recycling Industry with an extended outlook of circularity through its various ventures into the field of sustainability.

We have received FICCI Impactful Cleantech Startup Award, MeitY Emerging Startup Award, TVS Capital Budding Nxt Gen Entrepreneur Award, and many more for our digital solutions enabling transactions between waste generators, and aggregators, processors, and bringing in complete transparency, traceability to the waste ecosystem.

CercleX  helps brands to accomplish their sustainability targets withhttps://cerclex.com/extended-producer-responsibility/"> Extended Producer responsibility and researchhttps://cerclex.com/blog/the-effects-of-solid-waste-on-environment/"> solid waste managemet on the environment to ensure the environment is eco free.

To succeed as a backend developer, you should be focused on building a better, more efficient program and creating a better end-user experience. You should be knowledgeable, collaborative, and motivated.

Back-end Developer Responsibilities:

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Recording data and reporting it to proper parties, such as clients or leadership.
  Participating in continuing education and training to remain current on best
• practices, learn new programming languages, and better assist other team members.
• Taking lead on projects, as needed.
• Develop web applications and web services using Java Spring Boot, Spring Cloud Frameworks, AWS
  
  Back-end Developer Requirements:
  
  
• Bachelor’s degree in computer programming, computer science, or a related field.
• Fluency or understanding of specific languages, such as Java, Nodejs,React,JSON,PHP, or Python, and operating systems may be required.
• Strong understanding of the web development cycle and programming techniques and tools.
• Focus on efficiency, user experience, and process improvement.

• Participate in the development of application software
• Own the detailed design of the system.
• Comfortable in design, implementation, testing, and documentation
• Ensure quality by writing developer level tests (unit, component, etc.)
• Works with the team for the quality and timely deliveries.
• Creates products according to the specifications and software development process
• Helps the team meet their daily and iteration objectives
• Works to remove internal and external impediments in the Scrum team
• Facilitates continuous improvement with regular inspect , Adapt and team retrospection, Interface and Participate in Scrum of Scrum

Skills and experience

• Bachelor’s or master's degree in Computer Science or related field 
• 6-7 years’ experience hands-on in Node JS experience, Good Java script fundamentals. Python experience will be a plus.
• Should be experienced in web-based applications and micro-services architecture.
• Experience in relational databases ( PostgreSQL or Redshift)
• Exposure to MOCHA, CHAI test framework
• Knowledge in Test Driven Development.
• Experience of working in Cloud environments like AWS etc
• Knowledge of deploying application on Cloud Foundry
• Excellent coding and debugging skills. Knowledge of design patterns and practical application of the same
• Knowledge of Privacy & Security Rules, aspects for Software is a plus

Personal Characteristics

• Good communication and documentation skills.
• Self-starter, quick learner, ability to work with teams.
• Software Craftsmanship mindset.
• Proactive and self-driven possesses a due sense of urgency.
• Ability to stay focused on the target to deliver in an agile manner.
• Openness to collaborate in interest of project/organization.
• Shall be very good technically; good problem-solving abilities.
• Working with multisite teams, Quality conscious and Process & customer Oriented.

• Have at least 3 years work experience in Java 8 or higher / J2EE Java development.

• Have experience of agile systems development methodologies such as SCRUM
• Experience in designing the solution and implementation.
• Is a communicative, positive, outgoing and driven team player.
• Solution-oriented, see opportunities and proactively proposing new solutions, speak and write fluently in English.
• Good to have certifications in Java, Spring etc.
• Experience in Java 8.

• Experience in Spring Boot and other spring framework like Spring data, AOP etc.
• Experience in MongoDB/ Kafka / RabbitMQ etc.
• Experience in REST API
• Have worked on microservices
• Should have worked on minimum 2- 3 projects
• Experience in writing effective Unit test case for better coverage.
• Experience in writing good quality code by following code quality tools likes SonarQube etc.