
Job Overview
Architect and build scalable, high-performance backend systems while working on mission-critical platforms that process real-time market data and portfolio analytics. The role also involves leveraging Generative AI capabilities to enhance data intelligence, automation, and user-facing features, while ensuring regulatory compliance and secure financial transactions.
Key Responsibilities
- Design, develop, and maintain scalable backend services and APIs using NodeJS and Python
- Build event-driven architectures using RabbitMQ and Kafka for real-time data processing
- Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics and warehousing
- Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems for automation, insights, and intelligent workflows
- Design AI-powered features such as recommendation systems, document processing, or conversational interfaces
- Ensure system reliability, security, and low-latency performance for mission-critical systems
- Lead technical design discussions, conduct code reviews, and mentor junior engineers
- Optimize database queries, implement caching strategies, and improve overall system performance
- Collaborate with cross-functional teams to deliver end-to-end product features
- Implement monitoring, logging, and observability solutions
Required Skills and Qualifications
- 2+ years of professional backend development experience
- Strong expertise in NodeJS and Python for production-grade applications
- Proven experience building RESTful APIs and microservices architectures
- Experience working with Generative AI frameworks/APIs (OpenAI, LangChain, vector databases, prompt engineering)
- Understanding of integrating LLMs into production systems (RAG, embeddings, fine-tuning basics)
- Strong proficiency in PostgreSQL, including query optimization and schema design
- Hands-on experience with RabbitMQ and Kafka
- Experience with BigQuery or similar data warehousing solutions
- Solid understanding of distributed systems, scalability patterns, and high-traffic applications
- Strong knowledge of authentication, authorization, and security best practices
- Experience with Git, CI/CD pipelines, and modern development workflows
- Excellent problem-solving and debugging skills
- Exposure to fintech or financial services, cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, compliance, data privacy) is a plus
Apply directly at: https://wohlig.keka.com/careers/jobdetails/136351

About Wohlig Transformations Pvt Ltd
About
Wohlig is the catalyst that transforms the clients perspective of technology and empowers them to take advantage of the digital revolution that is constantly evolving.
We simply want to help our clients with our expertise to make their business efficient, cutting- edge and have a low cost of ownership.
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Job Details:
- Role: Senior Staff Engineer, Java, Node JS
- Experience: 7.5 -9 Years
- Employment Type: Full-time
- Work Mode: Bengaluru (Onsite- 5 days)
Job description
REQUIREMENTS:
- Strong experience in Backend Engineering, Microservices, and Distributed Systems
- Deep hands-on expertise in Java and Node.js development
- Strong experience in designing and developing RESTful APIs and backend services
- Strong understanding of OOP, Data Structures, Algorithms, and Software Design Principles
- Hands-on experience with PostgreSQL, MongoDB, or similar databases
- Experience with system design, scalability, fault tolerance, and performance optimization
- Experience with Redis, messaging systems, and event-driven architectures
- Hands-on experience with Git, automated testing, CI/CD, Docker, and Kubernetes
- Strong understanding of API security, authentication, and authorization
- Experience with observability, monitoring, and production support
- Strong troubleshooting, analytical, and problem-solving skills
- Experience working in Agile/Scrum environments
- Excellent communication and stakeholder management skills
- Experience with Spring Boot, TypeScript, NestJS, Kafka, and AI-assisted coding tools is preferred
RESPONSIBILITIES:
- Design, develop, and maintain scalable backend services, microservices, and APIs
- Build high-performance RESTful and event-driven applications
- Own system design, data models, integrations, scalability, and reliability
- Collaborate with product and engineering teams to deliver business solutions
- Write clean, secure, maintainable, and well-tested code
- Conduct code reviews and mentor junior engineers
- Troubleshoot production issues and perform root cause analysis
- Improve CI/CD pipelines, monitoring, logging, and operational practices
- Optimize application performance, database efficiency, and system scalability
- Participate in architecture discussions, design reviews, and technical decision-making
- Implement security best practices and engineering standards
- Support platform modernization and continuous improvement initiatives
- Leverage modern development tools and AI-assisted coding practices to improve productivity
- Participate in Agile ceremonies and collaborate with cross-functional stakeholders
- Ensure delivery of high-quality, reliable, and scalable backend solutions.
Qualifications
Bachelor’s or master’s degree in computer science, Information Technology, or a related fields
Requirement:
1. Node Js min 2 yrs exp.
2. Database - MONGO, SQL, etc. min 2yrs experience with these.
3. Caching - REDIS, MEMCACHED etc
4. Message Queues - RABBIT MQ, Kafka, etc.
Location: Delhi (Work from office).
Package : Upto 12 LPA
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.
About Us
Classplus is India's largest B2B ed-tech start-up, enabling 1 Lac+ educators and content creators to create their digital identity with their own branded apps. Starting in 2018, we have grown more than 10x in the last year, into India's fastest-growing video learning platform.
Over the years, marquee investors like Tiger Global, Surge, GSV Ventures, Blume, Falcon, Capital, RTP Global, and Chimera Ventures have supported our vision. Thanks to our awesome and dedicated team, we achieved a major milestone in March this year when we secured a “Series-D” funding.
Now as we go global, we are super excited to have new folks on board who can take the rocketship higher🚀. Do you think you have what it takes to help us achieve this? Find Out Below!
What will you do?
- Connect the dots between business goals and consumer problems through product development
- Solve the most challenging problem of scaling and business logic
- Design and develop services using test driven development with near 100% code coverage
- Develop and deploy services continuously using CI/CD on a daily basis
- Identify and own meaningful metrics for success and move them dramatically.
- Prepare and present management updates on key initiatives. Communicate clearly at all levels in the organization.
- Conduct multivariate experiments to constantly validate hypotheses and bash all the myths
You should apply, if you
- Display expertise: Have strong proficiency with Nodejs, My SQL, MongoDB and Caching and with code versioning tools, such as Git
- Can improvise: Understand the nature of asynchronous programming and its quirks and workarounds
- Showcase all round knowledge: Understand accessibility, security compliance, user authentication, and authorization between multiple systems, servers, and environments
- Can simplify: Can integrate multiple data sources and databases into one system. This also includes creating database schemas that represent and support business processes, and can implement unit tests
- Can figure out the basics: Understand fundamental design principles behind a scalable application
Being a Part of the Clan!
At Classplus, you’re not an “employee” but a part of our “Clan”. So, you can forget about being bound by the clock as long as you’re crushing it workwise😎. Add to that some passionate people working with and around you, and what you get is the perfect work vibe you’ve been looking for!
It doesn’t matter how long your journey has been or your position in the hierarchy (we don’t do Sirs and Ma’ams); you’ll be heard, appreciated, and rewarded. One can say, we have a special place in our hearts for the Doers! ✊🏼❤️
Are you a go-getter with the chops to nail what you do? Then this is the place for you.
Position: Java Backend Developer
Experience: Atleast 3 years
Joining: Immediate
Communication Skills: Good
Mandatory requirements:
- Java 8, SpringBoot 2.x
- Backbase 6, DB 2.x, IPS 1.x, CXS 6.x
- DBS 2.19 – 2.20
- Fluent in English, ability to work in remote teams, dependable
- Problem solving skills
Desirable requirements:
- DevOps, Pipelines, Docker, Kubernets, HELM
- Backbase Identity
- Security
Required Experience and Qualifications:
-3 to 6 years of software development experience.
-Experience of working in at least 2 or 3 projects, managing or leading the entire
tasks.
-Experience from a middle size company or from a startup will be preferred.
-BE/MCA/MSc in Computers/Information technology with a good academic
record.
-Must be willing to start Immediately work from home permanent
-Can Allocate working hours (Flexible) as per Projects Requirements.
-Must have Good Internet & Good Laptop/System
Perks & Benefits:
- Great learning, innovative and development platform.
- Remote work and flexible timings.
- Reimbursement of the online learning courses on certification.
- Medical insurance coverage for you and the dependence.
- Five Working days per week.
Responsibilities:
- Setup and integrate various APIs
- Dealing with scripts written in different languages (PHP, Node.js, Python, PhantomJS, Ruby)
- Must be an R & D specialist
- Keep up-to-date with advanced concepts
- Adaptable to learn new technologies
- Knowledge on Linux and its commands
- Fast in debugging the code
- Should be a quick learner
- Good at communication
Requirements
- Minimum 3 Years of experience in PHP7
- 1 Year experience in Node.js/Python
- Good work experience in PHP7
- Strong knowledge in OOPS.
- Proven knowledge on REST and SOAP API integrations
- Experience in composer installations
- Strong in Javascript and Node.js concepts.
- Good knowledge of MongoDB and MySql
- Knowledge of versioning tools (SVN/GIT)
- Having knowledge on Amazon AWS and Google Cloud Platform is an added advantage
- Having knowledge of elastic search is an added advantage
- Good to have knowledge on p threads
About the role: We’re looking for a Node.Js Developer who can adapt to new tech stacks and innovate with cutting-edge technology solutions, to build eCommerce platforms that are unique, disruptive, and powerful.
What you'll do:
● Integrate user-facing elements developed by front-end developers with server-side logic
● Write reusable, testable, and efficient code
● Design and implement low-latency, high-availability, and performant applications
● Implement security and data protection integrations
● Integrate data storage solutions such as databases, key-value stores, blob stores, etc.
● Optimize components for maximum performance across a vast array of web-capable devices and browsers
● Ensure high performance and responsiveness to requests from the front-end.
What you'll need:
● Bachelor's degree with minimum 3 years of work experience as a Node Js.
● Strong proficiency in JavaScript or Typescript
● Understanding of Node.js and its frameworks such as Express or StrongLoop
● Understanding of the nature of asynchronous programming and its quirks and workarounds
● Basic understanding of front-end technologies, such as HTML5, and CSS3
● Understanding of accessibility, security compliance, user authentication and authorization between multiple systems, servers, and environments
● Understanding fundamental design principles behind a scalable application
● Understanding of code versioning tools, such as GIT
● Integration of multiple data sources and databases into one system
● Understanding of the differences between multiple delivery platforms, such as mobile and desktop and its optimization output
● Knowledge on creating database schemas that represent and support business processes
● Knowledge on implementing automated testing platforms and unit tests
Who Should Consider Joining:
● If you like challenges and think from a first principle basis,
● If you are driven to take ownership and are adept at rolling with the punches,
● If you have the aspiration to grow fast in the dynamic environment of a start-up,
● If you are a collaborative team member, who believes in collective success,
● If you are someone who makes objective, fact-based decisions
Who should not consider joining:
● If the role description does not excite you, then you should not join us
● We are a startup and things will move fast. If you are not comfortable in a fast-paced environment, then you should not join us
● If you are not a self-starter who is willing to learn & experiment more, then you should not join us.
What We Offer:
● Limitless growth and learning opportunities
● Exposure to cutting edge technology solutions and upcoming stacks in the market
● In house technical training on GIT, Automated Testing, Code Coverage, Language Training and much more
● A collaborative and positive culture — Your team will be as smart and driven as you.
● Guidance and mentorship from industry experts and renowned IIT Alumnus
● An opportunity to make an impact — Your work will contribute directly to our strategy and growth
Advanced proficiency in MEAN Stack (NodeJS, MongoDB, Express, Angular JS)
Proficiency and hands-on experience with one or more of the following: Backbone / Knockout JS / Ember JS / React JS
Knowledge of JQuery would be an added advantage
Thorough knowledge of software development best practices, including coding standards, code reviews, source control management, build process, continuous integration and continuous delivery
Thorough knowledge of Node.JS, MongoDB, Angular JS, Express JS and JavaScript
Ability to plan core architecture, and to enhance it from time to time
Strong analytical mindset to derive actionable analytics from data










