Fullstack Developer

Data - AI / ML Engineer 

Full-Time   |   On-site, Kolkata   |   Immediate Joining   |   4+ years experience

ABOUT US 

Company Name: Freeflow ventures

We are a venture building and investment firm focused on emerging markets across India, the Middle East, and Africa. We work with early-stage startups -diagnosing gaps, structuring interventions, and preparing them for investor-readiness through a proprietary data and intelligence platform.

Our platform combines automated data verification, startup scoring, and structured workflow automation to bring consistency and credibility to early-stage investment decisions. We are at an active build and expansion phase, and this role sits at the core of that infrastructure.

ROLE OVERVIEW

We are looking for a Data - AI / ML Engineer who can own both the data pipelines that bring verified information into our platform and the intelligence models that turn that information into reliable startup scores.

This is a dual-responsibility role. You will be expected to build and maintain robust data infrastructure as well as develop, calibrate, and improve machine learning models. Both are equally important to the platform.

You will work closely with the Platform Owner and alongside a Backend Engineer who owns system integrations and workflow logic. Your work produces the scored intelligence output. The Backend Engineer's work connects that output to platform actions. The two roles are tightly interdependent and require close daily collaboration, especially in the first 30 days.

Note: You are the first technical hire on the platform team. The Backend Engineer joins the same week. Clear communication, well-defined handoff points, and shared documentation between the two of you are non-negotiable from Day 1.

WHAT YOU WILL DO

Data Pipeline

• Build and maintain pipelines that collect, clean, and normalize data from multiple external sources into a consistent, usable format
• Design connector architecture that allows individual data sources to be added, swapped, or removed without rebuilding the entire pipeline
• Implement automated data quality checks that catch bad data before it reaches the scoring layer -anomaly detection, constraint enforcement, and schema validation
• Build an automated eligibility screening system that verifies whether a startup has sufficient verified data before assessment begins
• Ensure the pipeline is resilient -critical data signals must have backup sources so a single vendor failure does not disrupt platform output
• Structure data storage to support different regulatory requirements across multiple countries -data from different regions must be handled according to the rules of that region

AI and Machine Learning

• Audit the existing scoring engine before making any changes -understand what it does, how it was built, and what would be lost if it were modified
• Calibrate scoring models against real portfolio data so that scores are meaningful, consistent, and comparable across different startup types and stages
• Build confidence scoring logic that determines when the system is certain enough to act autonomously and when it should route to human review
• Ensure every model output is explainable -investors must be able to see exactly which data points drove a score, not just the final number
• Build a feedback loop so that real-world outcomes feed back into the model over time, making it progressively more accurate
• Maintain a structured data store of assessment outputs and outcomes that the model uses to improve

Working With the Backend Engineer

• Define a clear data contract at the handoff point -what data you produce, in what format, and what the Backend Engineer can expect to receive
• Collaborate on trigger logic -what score thresholds or confidence drops should fire what system actions
• Align on data schema requirements so that the APIs the Backend Engineer builds conform to the structure your pipeline produces
• Communicate blockers early -the pipeline and backend system are built simultaneously, so delays on one side directly affect the other
• Document everything you build so the Backend Engineer and Platform Owner can understand, debug, and extend it without depending on you for every question

WHAT WE ARE LOOKING FOR

Skills are divided into two categories. Must Have means the role cannot function without it. Good to Have means it gives you an edge.

Skill

Priority

Data Engineering

Building and maintaining data pipelines from multiple sources

Must Have

Data normalization and schema design

Must Have

Automated data quality validation

Must Have

API integration across different source types

Must Have

Pipeline orchestration and scheduling

Must Have

Cloud infrastructure -storage, compute, and deployment

Must Have

Version control and code documentation

Must Have

AI and Machine Learning

Building and calibrating supervised machine learning models

Must Have

Model explainability -making model outputs traceable and interpretable

Must Have

Confidence scoring and threshold calibration

Must Have

Experiment tracking and model versioning

Must Have

Building feedback loops that improve models over time using real-world outcomes

Must Have

Natural language processing or document understanding

Good to Have

Vector databases and semantic search

Good to Have

Collaboration and Context

Ability to define clear data contracts and handoff points with backend engineers

Must Have

Clear written documentation of pipeline logic, model decisions, and failure modes

Must Have

Prior experience working in or with early-stage startups

Good to Have

Exposure to financial data, investment platforms, or data verification systems

Good to Have

WHAT WE OFFER

• Competitive compensation based on experience -discussed during the interview process
• Ownership of both the data and intelligence layers from Day 1 -this is not a support or maintenance role
• Direct access to the Platform Owner and Founder 
• Close collaboration with a Backend Engineer from Day 1 -the two roles are designed to work as a unit
• Work on a genuinely novel problem in an emerging market context
• On-site Kolkata with a small, high-accountability team
• Opportunity to scale the platform across multiple international markets

Delivery Solutions is a Retail eCommerce OXM Platform that provides retailers with out-of-the-box solutions to power Same-Day Delivery, Curbside, In-Store Pickup, Shipping, and Post Purchase experiences. We are trusted with some of the biggest names in multiple verticals of retail like Sephora, AT&T, Footlocker, Michael's, Office Depot, GameStop, Total Wine, Sally Beauty, Abercrombie & Fitch Co. Belk, Loblaw, Vineyard Vines etc.

Our SAAS-based solution is highly flexible and interacts seamlessly with E-commerce properties, OMS, WMS, and POS systems for a highly scalable experience and a delighted customer base.

Delivery Solutions is a wholly-owned subsidiary of UPS | We are a certified Great Places To Work Company

Role: Senior Software Engineer - MEAN Stack

Reports to: Team Lead

Division/Department: Product

Work Location: India - Remote / Pune

We are seeking highly skilled and experienced Senior Software Engineers to join our SaaS company. As a Senior Software Engineer, you will play a pivotal role in the development and enhancement of our cutting-edge software products. You will work closely with cross-functional teams to design, develop, and deploy scalable software solutions using the MEAN stack (MongoDB, Express.js, Angular, Node.js) and related technologies.

Responsibilities:

• Collaborate with product managers, designers, and other stakeholders to define software requirements and translate them into technical specifications.
• Design and develop robust and scalable software solutions using the MEAN stack and other relevant technologies.
• Take ownership of feature development and deliver high-quality code on time.
• Participate in code reviews to ensure code quality and adherence to coding standards.
• Troubleshoot and debug software issues, and identify and implement effective solutions.
• Collaborate with DevOps teams to ensure smooth deployment and operation of software applications.
• Stay up-to-date with the latest industry trends, tools, and technologies and make recommendations for process improvements.

Qualifications:

• Bachelor's degree in Computer Science, Software Engineering, or a related field. (Master's degree preferred)
• 4+ years of hands-on experience in MEAN stack development, including MongoDB, Express.js, Angular (version 2 or higher), and Node.js.
• Proven experience working in a product-based company, delivering software solutions to customers.
• Strong understanding of Agile methodologies and Agile development practices.
• Proficient in front-end technologies such as Angular, HTML, CSS, and responsive design principles.
• Solid understanding of back-end technologies including Node.js, RESTful APIs, and server-side frameworks.
• Experience with cloud platforms, specifically AWS, and familiarity with related services.
• Knowledge of JSON, Kibana, JIRA, and Jenkins is a plus.
• Strong problem-solving skills and the ability to work independently as well as in a team.
• Excellent communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams.

For our Cloud and Digital team, we seek Hands-On Technical Lead who can work on designing & implementing high quality scalable cloud software while providing technical leadership/mentoring to a small team of talented developers in agile environment. Your ability to lead the architecture, design, and implementation of maintainable, high-quality, and high-performing web (Java microservices, React UI, AWS) and mobile applications (iOS, Android, React native) is essential for success in this role. 

What you will be doing:

1. Strong programming knowledge in a combination of Java/Spring boot and Ruby on Rails. Expert in working in AWS Cloud, Micro services, REST, MongoDb / RDBMS/Cassandra, React /Node/Java Script, web frameworks/web technologies, Docker, Kubernetes, Messaging Brokers (Kafka, Kinesis, RabbitMq), Redis
2. Shaping architecture for robust, reliable, and high-performance applications, considering functional and technical requirements.
3. Manage/Mentor team of talented developers. Collaborate with cross functional stakeholders.
4. Estimate/Plan/Manage project deliverables in Agile environment with incremental system delivery.
5. Knowledge of data analytics and machine learning is a plus.
6. Good knowledge in version control and branching concepts (git, mercurial)

Who you are and what you bring:

1. B.E/B.Tech in Computer Science / Electronics and Electrical. Strong academics and career track record.
2. 15+ years of solid software development experience in building secure, scalable, and resilient systems.
3. Proven experience as software technical lead/manager/architect with cloud and digital SW
4. Excellent knowledge of software implementation, design and architecture of Web and Mobile apps.
5. Proven experience in working with AWS (preferably) or GCP or Azure.
6. Strong understanding of monitoring and logging tools.
7. Strong understanding of software design principles (SOLID, design patterns etc.)
8. Strong understanding of SOA and enterprise integration patterns.
9. Strong understanding of Functional or OOP patterns.
10. Experience in Web and Mobile software development and coding in various languages (Ruby on Rails, Node.js, Java, React, iOS, Android, Python etc.). Familiarity with HTML/CSS, JavaScript and UI/UX design.

Kutumb is the first and largest communities platform for Bharat. We are growing at an exponential trajectory. More than 1 Crore users use Kutumb to connect with their community. We are backed by world-class VCs and angel investors. We are growing and looking for exceptional Android Developers to join our Engineering team. 

More on this here - https://kutumbapp.com/why-join-us">https://kutumbapp.com/why-join-us.html

Core Responsibilities:

• Architect and develop new flows and features on our Android app
• Build robust UI which work well on different screen densities and interactions that result in a delightful experience
• Iterating and building experiments
• Will be working with Kotlin

You are the right fit if you have:

• Strong Android fundamentals
• Build from scratch and be a good decision maker
• The Ownership skills and can own the problems end to end
• The Zeal and willingness to put in extra efforts to build a product which will be used by millions of users, and most importantly
• The ability to find the solution to any problem and get things done

What we offer:

• High pace of learning
• Opportunity to build the product from scratch
• High autonomy and ownership
• A great and ambitious team to work with
• Opportunity to work on something that really matters
• Top of the class market salary and meaningful ESOP ownership

POSITION - MERN Full stack Developer" & MERN FULL STACK TECHNICAL LEAD

EXP: 4-10YRS 

Location: Noida,  WORK FROM OFFICE

NP: IMMEDIATE JOINED/15 DAYS

• In-depth knowledge of NodeJS, ExpressJS
• REST API Services Development with Node.js
• Front-end Application design and Development with React, 
• HTML / CSS/JavaScript
• Database Knowledge with MongoDB
• Design and Development of Dynamic web apps
  
  

We are searching for a brilliant, flexible android developer to create novel apps that meet the needs of our target audience. To this end, the android developer's responsibilities include writing and proofreading code, liaising with coworkers within and outside of their department, and monitoring customers' feedback. Over time, you will also be required to create app updates. To ensure success as an android developer, you should demonstrate proficiency in one of the mainstream programming languages, and a sound understanding of the traditional product life cycle. An exceptional android developer will be fearless but respectful in the pursuit of excellence, continually striving to shape the ways in which Android apps impact the world around us.

Responsibilities:

• Writing clean and efficient codes for Android applications
• Proofreading your code and correcting mistakes before each app is released.
• Collaborating with UI and UX Designers, as well as Software Testers, to ensure that each app is presentable and in perfect working order.
• Identifying and resolving bottlenecks, rectifying bugs and enhancing application performance
• Monitoring the performance of live apps and work on optimising them at the code level
• Collaborating with cross-functional teams to define and design new features
• Implementing measures to safeguard users' data.
• Ensuring that the construction and presentation of your apps are congruent with the company's standards.
• Monitoring app reviews to detect areas for improvement.
• Creating app updates, including bug fixes and additional features, for release.
• Staying up to date with new mobile technology trends, applications, and protocols

What are we looking for? :

- Experience of upto 3 years in PHP or other backend programming languages.

- Understanding of MVC structures, OOPs concepts and Frameworks.

- Experience working with Linux, Nginx or Apache and Git, REST APIs.

- Experience with Third party API integrations and using various vendor libraries.

- Have knowledge of Database schemas, structures and migrations.

- Experience in Laravel would be a huge plus.

What you will be doing?:

- Collaborate with team members and solve new challenges through tech and research.

- Take end-to-end ownership of delivering new modules - analyze customer usage & feedback, review business requirements, develop functionalities and test code.

- Write clean readable code and also follow best practices for efficiency and performance.

- Self learn and work independently, Also collaborate with the team when required.

- Communicate constructively and value user experience and feedback.

.
What can you expect to learn?:

- Exposure to latest web technologies and frameworks like Angular, Laravel, PHP, Magento, PWAs, REST APIs, Elastic search and Web services.

- Develop custom functionalities and modules in Laravel to implement business ideas and user requirements.

- Best coding practices and various methodologies to optimize performance and produce the best quality product. Various caching techniques and optimization standards.

- Microservices architecture and Scalability using cloud services, Automation of manual tasks using linux and shell scripting, Data migrations, SQL and Version control tools like bitbucket.

Perks : 

- Competitive salary

- Flexible work hours

- No dress code

- Group outings

- Supportive work culture