
Senior Backend Developer (Node.js + AWS + MongoDB)
Job Title : Senior Backend Developer (Node.js + AWS + MongoDB)
Experience : 4+ Years
Location : Andheri, Mumbai (Work From Office)
About the Role :
We are looking for a highly skilled Senior Backend Developer with strong expertise in Node.js (NestJS), AWS, and MongoDB to join our growing engineering team.
This role requires someone who takes ownership, is proactive, and enjoys building scalable, high-performance backend systems in a fast-paced environment.
Key Responsibilities :
- Architect, design, and develop scalable backend services using Node.js (NestJS).
- Design and manage cloud infrastructure on AWS Services (EC2, ECS, RDS, Lambda, etc.).
- Develop and maintain high-performance database solutions using MongoDB.
- Work with Kafka, Docker, and serverless frameworks (SST) for efficient deployments.
- Optimize system performance, scalability, and reliability across services.
- Ensure application security, best practices, and compliance standards.
- Collaborate with cross-functional teams to deliver robust product features.
- Take end-to-end ownership of features from design to deployment.
Technical Requirements :
- 4+ years of backend development experience.
- 3+ years of hands-on experience with Node.js.
- 2+ years of hands-on experience with AWS.
- Strong experience with NestJS framework.
- Solid experience with MongoDB and database design.
- Experience with Kafka, Docker, and serverless architecture.
- Understanding of system design, scalability, and performance optimization.
Good to Have (Bonus Skills) :
- Experience with Python or other backend languages.
- Exposure to Agentic AI use cases or implementations.
- Strong understanding of security best practices.
What We’re Looking For :
- Curious mindset and eagerness to learn new technologies.
- Proactive problem solver with strong ownership attitude.
- Strong team player with effective communication skills.
- Positive, energetic, and passionate about building great systems.

About NeoGenCode Technologies Pvt Ltd
About
Welcome to Neogencode Technologies, an IT services and consulting firm that provides innovative solutions to help businesses achieve their goals. Our team of experienced professionals is committed to providing tailored services to meet the specific needs of each client. Our comprehensive range of services includes software development, web design and development, mobile app development, cloud computing, cybersecurity, digital marketing, and skilled resource acquisition. We specialize in helping our clients find the right skilled resources to meet their unique business needs. At Neogencode Technologies, we prioritize communication and collaboration with our clients, striving to understand their unique challenges and provide customized solutions that exceed their expectations. We value long-term partnerships with our clients and are committed to delivering exceptional service at every stage of the engagement. Whether you are a small business looking to improve your processes or a large enterprise seeking to stay ahead of the competition, Neogencode Technologies has the expertise and experience to help you succeed. Contact us today to learn more about how we can support your business growth and provide skilled resources to meet your business needs.
Candid answers by the company
IT & Engineering Talent Staffing
- Provides full-time and contract-based hiring, delivering handpicked, pre‑screened developers across tech stacks—ranging from web, mobile, AI/ML, Web3/blockchain.
- Maintains a bench o vetted candidates, offering fast delivery of interview-ready profiles—often within 24 hours.
- Offers payroll management, handling compliance, tax, attendance, and documentation for both contractors and full-time employees.
2. End-to-End Project Delivery
- Delivers full-stack development solutions: web, mobile, cloud, AI/ML, Blockchain/Web3.
- Manages entire project lifecycle—requirements gathering, design (UI/UX), development, deployment, and ongoing support .
3. Additional Offerings
- Expands into cybersecurity consulting, digital marketing, and cloud platform services (like AWS, GCP, Azure) .
- Provides strategic IT consulting to align technology solutions with business objectives
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**Company Overview**
We are a VC-backed fintech startup developing an innovative online trading platform. As we scale, we're seeking a skilled Backend Engineer with expertise in Python to join our growing team and help build a robust, scalable infrastructure for our cutting-edge trading application.
We're based out of the UK and have our engineering team in India.
**Job Description**
We are looking for a backend developer who specialises in Python. Your role will focus on developing and maintaining the server-side logic, optimising performance, and ensuring seamless integration with the frontend. You’ll work closely with the engineering and product teams to deliver a high-quality, secure, and scalable platform.
**Responsibilities**
1. Develop and maintain server-side logic using Python
2. Design and implement APIs for seamless integration with frontend components
3. Optimise backend performance and scalability for high traffic and large data loads
4. Build and maintain databases, ensuring security, data integrity, and optimal performance
5. Collaborate with frontend engineers to ensure smooth integration between backend and frontend systems
6. Troubleshoot, debug, and optimise backend infrastructure
7. Implement data protection, security protocols, and authentication mechanisms (e.g., JWT)
8. Maintain and enhance real-time communication systems using WebSockets or similar protocols
**Required Skills**
1. Strong proficiency in Python and related technologies, knowledge of databases and SQL, and experience with web frameworks like Django or FastAPI
2. Strong analytical and troubleshooting skills, and the ability to solve problems
3. Good understanding of OOPs, task broking services, Queues, Redis
4. Familiarity with RESTful API design and integration
5. Strong understanding of database management (e.g., PostgreSQL, Redis) and caching strategies
6. Familiarity with modern authentication and authorization mechanisms (e.g., JWT, OAuth)
7. Proficiency in working with cloud hosting services (AWS, Google Cloud, etc.)
8. Experience with containerization and orchestration tools (Docker, Kubernetes)
9. Knowledge of real-time communication protocols (e.g., WebSockets, TCP, SSE)
10. Strong understanding of security best practices for server-side applications
11. Experience with version control (Git) and CI/CD pipelines
12. Minimum of 2-3.5 years of experience building scalable backend systems
**Perks**
1. Work From Anywhere Flexibility
2. Unlimited Leaves policy*
3. Competitive salary and unlimited growth opportunities
4. Insights on how HFT is done using cutting edge technology
If you’re passionate about building scalable, high-performance backend systems and want to be part of a cutting-edge fintech startup, we’d love to hear from you!
Looking to hire a single backend engineer who will become a part of the core team, with the track to become a part of the leadership at our company.
Candidate should have worked in startups, possess strong programming skills in Python, displays a sense of ownership and is highly energetic and eager to learn state-of-the-art tech and ML.
A minimum of 2 years of relevant experience is preferred.
2022 or later year pass outs - please apply only if you have relevant full-time and at least 2 prior internships experience
Representative (not exhaustive) responsibilities:
- Assess the current design and infrastructure of the backend server, and continuously implement enhancements to make the systems more robust, reliable and responsive
- Design, implement, test, and deploy APIs with Python on Linux servers
- Enhance back-end functionality and integrate with the front end to deliver a fully functional product
- Implement and set up automated tests to periodically test backend infrastructure for reliability, security and performance
- Design new data pipelines to enable the production deployment of new models
- Mentor junior employees and interns in the company
- Additionally, interest and ability to contribute to the continuous enhancement of our state-of-the-art NLP model pipeline and Inferencing engine is a big plus
- Be ready to roll up your sleeves and participate in customer calls, understand our ICP well, do research around product features, etc.
Fast Track Your Application
Think about the ICP for ContractKen. Sign up for a trial plan, experience the product and provide feedback on how to improve the current experience of the product to add immediate value to the ICP. We don't need you to fully code any feature in its entirety and are not looking for free work. The idea is to identify folks who get** what we are trying to do with ContractKen and find faster alignment with the right candidate.
Do not apply if
You're looking for your first, real-world model building, ML/AI role. We believe that deploying existing models (open source and proprietary) in production and delivering real business value to our customers is 10x more important than hyperparameter tuning or the latest algorithm implementation. While we'd love to entertain experienced ML data scientists, the emphasis on MLOps is as much as it is on experimentation.
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.
- Programming experience : 5 to 8 years of programming experience
- Strong technical knowledge in any of the following programming languages : Ruby on Rails /Python/Java and willing to learn and work in Node.js.
- Good Programming aptitude
- Have experience designing and building large scalable web services.
- Have an in-depth understanding of database technologies (SQL and NoSQL)
- Have experience building RESTful APIs and have good knowledge of RESTful design patterns.
- Be able to communicate and work well within a team
- Brownie points if you have worked on Typescript & Nest.js
The database market is massive (the IDC estimates it to be $119B+ by 2025!) and MongoDB is at the head of its disruption. The MongoDB community is transforming industries and empowering developers to build amazing apps that people use every day. We are the leading modern data platform and the first database provider to IPO in over 20 years. Join our team and be at the forefront of innovation and creativity.
MongoDB is expanding our global team of consulting engineers to further our ongoing plans for worldwide growth!
MongoDB Professional Services works with customers of all shapes and sizes in all verticals, from tier-1 banks to small web startups, on a variety of interesting use cases from e-commerce platforms to trading systems to social media applications. Solve interesting problems, gain incredible cross-stack experience, work with the best and brightest people in the business, network with industry leaders, and see new places - all in a day’s work!
MongoDB consulting exists to support the development of our customers’ vision, accelerate customers’ time to value, and drive a multitude of customer adoption scenarios - from building new solutions to modernizing legacy applications or migrating to the cloud. Our consulting solutions ensure that organizations get the best out of MongoDB.
Be one of the recognized experts in this rapidly growing field in a high-growth software company successfully challenging the status quo of the database industry.
Shift Timing
You will get an opportunity to work with Global customers (APAC, EMEA, and North America) So this would require you to work in monthly rotational shifts.
This role can be based out of our Gurugram/Bangalore Office or remotely in the India region.
Candidate Profile
We’re looking for a highly technical individual, with strong problem-solving and communication skills, and is comfortable working closely with customers.
Our ideal candidate will have
- Excellent analytical, diagnostic skills, and problem-solving skills
- High motivation for a role that combines deep technical and customer-management dimensions
- Confidence speaking and presenting in a collaborative customer setting
- 4+ years of software development/consulting/support experience, preferably in a number of distinct industries/verticals
- Familiarity with enterprise-scale software architectures, application development methodologies, and software deployment and operations
- Competence in at least one of the following languages (in no particular order): Java, C#, Python, Node.js (JavaScript), Ruby, Go.
- Experience with databases such as MongoDB, Oracle, MS SQL Server, PostgreSQL
- Familiarity with Linux diagnostics and tuning; Windows tuning knowledge is a plus
- Should have the strong capability with, minimally, both English and any local language - as necessary
Position Expectations
As a core member of the MongoDB Professional Services team, you will
- Contribute to helping migrate customers from self-hosted MongoDB on-prem/cloud to Atlas
- Contribute to customer implementations at any or all phases of the application lifecycle: portfolio assessment, application planning, and design, deployment architectures, development and build, integration and release configuration, system testing, production operations, application optimization, and best practices adoption
- Work as part of a wider delivery team comprising fellow consulting engineers, project managers, and account teams
- Cultivate your individual MongoDB reputation as a trusted advisor to guide MongoDB and our customers into the future
- Partner with Product and Engineering teams to influence the direction of the MongoDB product roadmap
Success Measures
As a Consulting Engineer, you will be successful in this role when you can execute the following
- Become a field expert in “everything MongoDB”
- Communicate complex technical proposals simply and convincingly to a wide range of audiences
- Gain a reputation as a trusted advisor with your clients, large and small
- Ensure your client’s success with their MongoDB endeavors
- Maintain the required level of billable utilization
- Influence MongoDB product development by contributing experience from the field
- Successfully communicate the product roadmap to external clients
- Constantly work on improving yourself, our products and our team
Do you know, Why MongoDB is a fantastic place to work and build your career?
- Top NoSQL database in the world
- Largest Ecosystem and the fastest growing database in the world
- Close to 26,800 customers in more than 100 countries and over 175+ million downloads
- Sequoia Capital and a number of other Top VC firms have invested in MongoDB. Sequoia Capital calls us out as one of their flagship portfolios; Sequoia has also invested in Apple, Google, Youtube, and WhatsApp
- 9-figure revenue company, with very high double-digit growth rates
- Be a part of the company that’s reinventing the database, focused on innovation and speed
- Enjoy a fun, inspiring culture that is engineering focused
- Work with talented people around the globe
- Learn, contribute, and make an impact on the product and community
Life at MongoDB
Our India office culture
- 300+ people, with teams in Sales, Engineering, HR, Finance, IT & Marketing
- Regular group outings and opportunities to get to know your colleagues
- Employee affinity groups
Our Benefits
- Competitive salary and equity
- Comprehensive Health cover, dental cover, travel insurance & Life Insurance.
- Free lunch twice per week and a fully stocked kitchen with healthy and sweet treats in office.
- Macbooks are company standard
- 26 weeks Maternity & 20 Paternity leave to spend time with new arrivals
let’s check out the below link to know more about the role and Flex Consulting Team in India:
https://www.mongodb.com/blog/post/meet-our-growing-flex-consulting-team
To drive the personal growth and business impact of our employees, we’re committed to developing a supportive and enriching culture for everyone. From employee affinity groups to fertility assistance and a generous parental leave policy, we value our employees’ wellbeing and want to support them along every step of their professional and personal journeys.https://www.mongodb.com/blog/channel/culture"> Learn more about what it’s like to work at MongoDB, and help us make an impact on the world!
MongoDB is committed to providing any necessary accommodations for individuals with disabilities within our application and interview process. To request an accommodation due to a disability, please inform your recruiter.
MongoDB is an equal opportunities employer.
Responsibilities:
• Should have good knowledge and understanding in the following areas and you are able to apply that knowledge in delivering small and medium tasks:
• Programming language(s)
• Frameworks and libraries
• Platforms and tools
• Hands-on experience on AWS serverless services and familiarity with the environment
• Confident personality with good communication skills who can hold a conversation with a client and is not hesitant to put across his point.
• Ability to lead the calls independently in absence of a team lead
• Hands-on experience test case writing.
• Good aptitude
• Excellent problem solving and analytical skills
• Ability to lead a group of software developers technically.
• Flexible working hours.
Requirement:
• Must have:
• NodeJS/JavaScript/Typescript
• AWS Serverless services especially lambda, S3, and DynamoDB
• Conceptual understanding of elastic cache and related services
• Restful API
• Intermediate SQL – Querying and analysis
• Microservice architecture
Nice to have:
• Typescript
• Event-Driven Architecture in cloud-like SQS
• OAuth/SAML integration
• Terraform, - would be a great addition
Benefits:
• A competitive annual salary based on experience and market demands
• Flexi-timings
• Medical insurance with the option to purchase a premium plan or HSA option for your entire family
• Business casual atmosphere
• Work from anywhere.
Are you passionate about using technology to make people's lives better? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.
Role and Responsibilities
- Helping lead the software development lifecycle: technical design, implementation, testing, deployment, and support.
- Working with cross-functional teams effectively to enable business growth.
- Proactively identifying engineering bottlenecks and initiating proposals to improve them.
- Writing high-quality, well-tested code in alignment with industry-wide best practices.
- Applying a product mindset to back-end systems.
-
- About five years of experience delivering product-quality code in an agile set-up
- Experience with Node.js (Hapi, Restify, Express, Mongoose, Socket.IO, Mocha)
- Experience with Elasticsearch
- Experience building and deploying Docker containers
- Strong general Linux experience
- Extensive experience with REST APIs
- Experience with microservice architecture
- Experience with MongoDB
- Expert knowledge of Redis and caching strategies
- Strong knowledge of unit/integration testing, including the art of mocking and writing testable code
- Passionate about technology and making an impact.
- A perpetual learner, who stretches their boundaries and enjoys new ideas.
- A doer who takes initiative and works well in a team.
Blok is a technology-first online ultra-fast grocery delivery service business, and we are on our way to revolutionize how millions of people across countries consume groceries. We believe in a world where getting everything you need, when you need it, sustainably, is the new normal. And it takes less than 10 minutes.
We believe we are positioned to lead this revolution. Why? Our founding and early team have held senior positions at Deliveroo, Uber, Glovo, Mercadona, or Unilever. We have done this before, and we believe we can do it again. But this time, even better.
Embark on the journey and help us launch the revolution in one of the highest growth industries of the year. Help us shape the new normal.








