
Senior Backend Engineer (Node.js, AI-Native) Tier 1 college only
at Staffnixcom
Experience: 6+ years building production backend systems in Node.js for B2C products at meaningful scale.
• System Design: This one matters a lot to us. You can reason clearly about scalability, reliability, and trade-offs under real constraints.
• Fundamentals: Strong grasp of API design, service-oriented architecture, data structures, algorithms, and clean code.
• Databases: Depth in SQL and/or NoSQL, data modeling, query optimization, and performance tuning.
• AI-Native: You already use LLMs and agentic approaches to maximize your own efficiency as an engineer.
• Mindset: You enjoy the pace and breadth of a small team, and you are happy picking up whatever moves the product forward.

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The requirements are as follows:
1) Familiar with the the Django REST API Framework.
2) Experience with the FAST API framework will be a plus
3) Strong grasp of basic python programming concepts ( We do ask a lot of questions on this on our interviews :) )
4) Experience with databases like MongoDB , Postgres , Elasticsearch , REDIS will be a plus
5) Experience with any ML library will be a plus.
6) Familiarity with using git , writing unit test cases for all code written and CI/CD concepts will be a plus as well.
7) Familiar with basic code patterns like MVC.
8) Grasp on basic data structures.
You can contact me on nine three one six one two zero one three two

Client Company is a profitable, rapidly scaling unicorn which is extremely well capitalized. Client has a very strong moat in the consumer lending space on the back of which it is entering into additional large markets such as E-comm and UPI.
Client company is now entering its next phase of growth from a fast-scaling startup to a robust, high-scale financial platform serving millions of users daily. You'll design systems built for 10x100x growth, make the key technical trade-off calls, and stay deeply hands-on. Beyond building, you'll mentor engineers and work directly with founders and product teams to translate business goals into scalable, reliable systems.
This role is an opportunity to:
- Shape the next-generation architecture for a high-throughput fintech system
- Build systems designed to scale 10x–100x from current volumes
- Solve real-world problems across performance, reliability, and financial-grade security
Responsibilities
- Design and evolve the platform architecture to support 10x–100x growth
- Own systems end-to-end from the first design decision to production impact
- Lead system design discussions and set the long-term technical direction for the platform
- Identify scale bottlenecks early and drive solutions
- Mentor and elevate engineers through design reviews, code quality, and architectural thinking
- Partner directly with founders and product teams to turn business priorities into scalable systems
- Operate with high ownership in a fast-paced environment where priorities evolve quickly
- Drive projects independently own timelines, coordinate with teams, and see delivery
- Conduct rigorous code reviews and champion engineering best practices across the team
- Proactively identify gaps in the system and come up with concrete approaches to address them
- Solve technical problems across the company not just confined to a single pod
- Challenge existing architecture with data and reasoning push back when it’s the right call, and drive adoption of better approaches.
Requirements
- 7–12 years of experience in backend or platform engineering
- Strong computer science fundamentals (preferably from IIT, BITS, NITs)
- Strong proficiency in backend development (Node.js, Java, Go, or equivalent)
- Proven experience scaling systems through high-growth startup phases (1→10 or beyond)
- Track record of building and owning critical platforms or systems from scratch
- Exposure to high-volume transactional systems; fintech or lending is a strong plus
- Bias for action - moves fast, makes sound decisions, owns outcomes end-to-end
- Comfortable navigating ambiguity and evolving priorities in a startup environment
- Strong problem-solving skills ability to break down complex technical challenges and arrive at pragmatic, well-reasoned solutions
- Hands-on experience with platform engineering developer tooling, shared services, infrastructure abstractions, or internal platforms
Architect
Experience - 12+ yrs
About Wekan Enterprise Solutions
Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.
Job Description
We are looking for passionate architects eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments leading technical teams, designing system architecture and reviewing peer code. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?
You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects.
Location - Chennai or Bangalore
● Relevant experience of 12+ years building high-performance applications with at least 3+ years as an architect.
● Good problem solving skills
● Strong mentoring capabilities
● Good understanding of software development life cycle
● Strong experience in system design and architecture
● Strong focus on quality of work delivered
● Excellent verbal and written communication skills
Required Technical Skills
● Extensive hands-on experience building high-performance applications using Node.Js (Javascript/Typescript) and .NET/ Golang / Java / Python.
● Strong experience with appropriate framework(s).
● Wellversed in monolithic and microservices architecture.
● Hands-on experience with data modeling on MongoDB and any other Relational or NoSQL databases
● Experience working with 3rd party integrations ranging from authentication, cloud services, etc.
● Hands-on experience with Kafka or RabbitMQ.
● Handsonexperience with CI/CD pipelines and atleast 1 cloud provider- AWS / GCP / Azure
● Strong experience writing and maintaining clear documentation
Good to have skills:
● Experience working with frontend technologies - React.Js or Vue.Js or Angular.
● Extensive experience consulting with customers directly for defining architecture or system design.
● Technical certifications in AWS / Azure / GCP / MongoDB or other relevant technologies
We're looking for Node js developers with over 2+ years of experience and strong expertise in Javascript based development using Node js and Express. We are looking for cadidates who are go-getters and are leaning towards leadership positions. Candidates must have a proven history of building, scaling, optimising and securing
We would prefer candidates who can join immediately or are currently serving their notice period.
Key Skills Required :
Node.js Developer :
duties and responsibilities
- Work as part of a team developing applications and services using Agile development methods
- Contribute to team and organizational improvements in process and infrastructure
- Build customer-facing UI and back-end services for payment processing administration and management
- Code, teste and operate node.js based services
- Effectively use tools and ingenuity to identify and fix defects before they become a problem
requirements and qualifications
-
- Previous working experience as a Node.js Developer for 2 years
- BE /B.Tech in computer science or similar relevant field
- In depth knowledge of Node.js
- Hands on experience with HTML, CSS, and AJAX
- Development experience designing object oriented JavaScript and SVG
- Applicable knowledge of web libraries and frameworks such as AngularJS, Polymer, and Closure
- Familiarity with the whole web stack, including protocols and web server optimization techniques
- Strong analytical skills and problem solving aptitude
- Attention to details

- Experience building and managing large scale data/analytics systems.
- Have a strong grasp of CS fundamentals and excellent problem solving abilities. Have a good
understanding of software design principles and architectural best practices.
- Be passionate about writing code and have experience coding in multiple languages, including at least
one scripting language, preferably Python.
- Be able to argue convincingly why feature X of language Y rocks/sucks, or why a certain design decision
is right/wrong, and so on.
- Be a self-starter—someone who thrives in fast paced environments with minimal ‘management’.
- Have exposure and working knowledge in AI environment with Machine learning experience
- Have experience working with multiple storage and indexing technologies such as MySQL, Redis,
MongoDB, Cassandra, Elastic.
- Good knowledge (including internals) of messaging systems such as Kafka and RabbitMQ.
- Use the command line like a pro. Be proficient in Git and other essential software development tools.
- Working knowledge of large-scale computational models such as MapReduce and Spark is a bonus.
- Exposure to one or more centralized logging, monitoring, and instrumentation tools, such as Kibana,
Graylog, StatsD, Datadog etc
Node.js Developer Responsibilities:
- Developing and maintaining server-side network components.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- At least two years of experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
Job Brief:
- Proficient in object-oriented programming and distributed systems
- Some experience with Web Programming and TypeScript
- Ability to speak and write in English fluently
- A proactive approach to spotting problems, areas for improvement, and performance bottlenecks
- Experience with TypeScript and NodeJS
- Experience with the language server protocol
- Experience with JavaScript
- Experience with the Pub-Sub pattern
Key Skills :
- Good understanding and experience of HTML / CSS / JavaScript.
- Hands-on experience with ES6 / ES7 / ES8 features.
- Thorough understanding of the Request Lifecycle (including Event Queue, Event Loop, Worker Threads, etc).
- Familiarity with security principles including SSL protocols, data encryption, XSS, CSRF.
- Expertise in Web Services / REST APIs will be beneficial.
- Proficiency in Linux and deployment on Linux are valuable.
- Knowledge about ORM like Sequelize and ODM like Mongoose and the ability to handle DB transactions is a necessity.
- Experience with Angular JS / React JS will be an added advantage.
- Expertise with RDBMS like MySQL / PostgreSQL will be a plus.
- Knowledge of AWS services like S3, EC2 will be helpful.
- Understanding of Agile and CI/CD will be of value.






