
Responsibilities:
As a backend developer you would be responsible for:
- Executing full lifecycle software development
- Architect and conceptualise the solution from initiation to completion meeting client requirements
- Work with customer and their integration partners to ensure the product is well integrated
- Programming well-designed, testable and efficient code
- Develop flowcharts, layouts and documentation to identify requirements and solutions
- Work with cross-functional teams (Product, Engineering and ML team) to craft custom solutions
- Ensure clients change requests are addressed effectively in a timely manner
Requirements:
- 2+ years of experience in architecture and developing high performance web applications
- In-depth understanding of the entire web development process (design, development, and deployment)
- Strong NoSQL and/or SQL database design and query writing skills with a commitment to performance and efficiency
- Knowledge of RESTful API and SOAP Webservices paradigms
- Experience with CRM/ERPs like systems SAP, Oracle, SalesForce, Servicenow, Workday, etc. would be a huge plus
- Ability to operate in a highly ambiguous and fast-paced environment
- Superior verbal and written communication skills
Our Technology Stacks:
- Demonstrated experience in our tech stack will be a big plus as it lets you get up and running with our product that much sooner
- Node.js back-end with typescript
- MongoDB as database
- React to power our user interfaces (don't worry, we don't expect it for back-end)
- NGINX as our web server
- RabbitMQ
- Redis
- Elasticsearch
- Docker

About Leena AI
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Strong Senior Backend Engineer profiles
Mandatory (Experience 1) – Must have 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems
Mandatory (Experience 2) – Must have strong backend development experience using one or more frameworks (FastAPI / Django (Python), Spring (Java), Express (Node.js).
Mandatory (Experience 3) – Must have deep understanding of relevant libraries, tools, and best practices within the chosen backend framework
Mandatory (Experience 4) – Must have strong experience with databases, including SQL and NoSQL, along with efficient data modeling and performance optimization
Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs, services, and backend systems, including system design and clean code practices
Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D
Mandatory (Education) – Candidates from top engineering institutes (IITs, BITS, or equivalent Tier-1 colleges) are preferred
Senior Software Engineer
AiSensy
Gurugram, Haryana, India (On-site)
About AiSensy
AiSensy is a WhatsApp based Marketing & Engagement platform helping businesses like Adani, Delhi Transport Corporation, Yakult, Godrej, Aditya Birla Hindalco, Wipro, Asian Paints, India Today Group, Skullcandy, Vivo, Physicswallah, and Cosco grow their revenues via WhatsApp.
- Enabling 100,000+ Businesses with WhatsApp Engagement & Marketing
- 400 Crores+ WhatsApp Messages exchanged between Businesses and Users via AiSensy per year
- Working with top brands like Delhi Transport Corporation, Vivo, Physicswallah & more
- High Impact as Businesses drive 25-80% Revenues using AiSensy Platform
- Mission-Driven and Growth Stage Startup backed by Marsshot.vc, Bluelotus.vc & 50+ Angel Investors
Key Responsibilities:
- Build Scalable Architecture to handle millions of messages per day.
- Lead a team of engineers and guide them on a day to day basis.
- Collaborate with product managers, designers, and other engineers to define and implement new features and enhancements.
- Write clean, maintainable, and efficient code following best practices and coding standards.
- Conduct code reviews to ensure code quality and adherence to standards.
- Identify and resolve performance bottlenecks, bugs, and other issues.
- Mentor and provide guidance to junior engineers, fostering a culture of continuous learning and improvement.
- Participate in architectural discussions and contribute to the technical direction of the team.
- Stay up-to-date with the latest industry trends and technologies, and incorporate them into our development processes.
- Ensure the security, reliability, and performance of our applications.
- Collaborate with DevOps to streamline the deployment and monitoring processes.
Qualifications:
- Bachelor’s degree in Computer Science, Engineering, or a related field. Master’s degree preferred.
- Over all 5+ years of experience with proven experience 3+ years as a Software Engineer, with a strong track record of delivering high-quality software products.
- Expertise in the MERN stack (MongoDB, Express.js, React, Node.js).
- Strong understanding of JavaScript and modern JavaScript frameworks.
- Experience with front-end technologies like HTML5, CSS3, and responsive design.
- Strong understanding of software development methodologies, including Agile and Scrum.
- Experience with RESTful API design and development.
- Experience with database design and management, particularly MongoDB.
- Familiarity with cloud platforms such as AWS.
- Excellent problem-solving and analytical skills.
- Strong communication and collaboration abilities.
- Experience with version control systems such as Git.
- Knowledge of containerization and orchestration tools like Docker and Kubernetes
We are looking forward to hiring a committed
Java Developer with experience in building high-performing, scalable, enterprise-grade applications. You will be part of our Engineering team that works on mission-critical applications. You will be managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Location = Pune
You are required to:
Contributing in all phases of the development lifecycle.
Write well designed, testable & efficient code.
Ensure designs comply with specifications.
Prepare and produce releases of software components.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
Our Current Stack
Backend: Spring (JAVA), Laravel (PHP), MySQL, NoSQL, NGINX Plus.
Frontend: Angular 5+ Ngrx/store 5
Infrastructure: Google cloud platform (App engine, CloudSQL, BigQuery, PubSub, Firebase Hosting), Scrapy Cloud, Pusher.io (websockets), Getstream.io, Filestack, Postmark app, AS2 Gateway, Google Cloud Endpoints Framework, MongoDB, Algolia, Memcache
Tools: Gitlab, Postman app, JIRA.
Technical Skills required
JAVA, SPRING OR SPRING BOOT, DATA STRUCTURES & ALGORITHMS, HIBERNATE, MYSQL, MONGODB and NOSQL
What Makes You Eligible?
LOOKING FOR CANDIDATES FROM PUNE LOCATION ONLY.
B. Tech degree ONLY ( FIRST CLASS GRADE IN FINAL YEAR 60 % OR ABOVE ONLY).
Experience in the same role of almost 1-2 years.
Experience with connecting backend and frontend services.
Exposure to consuming data through different interfaces (Web API's/Socket/ REST/ RESTFUL/ JSON/ XML).
Proficiency in Data Structures and Algorithms.
Understanding of web markup, including HTML 5 CSS.
Understanding of client-side scripting and JavaScript frameworks.
Ability to write clean, reusable and well documented code.
Proficient understanding of code versioning tools, such as Git.
Knowledge of API authentication techniques (Token, JWT, OAuth2) - desirable but not mandatory. (Experience with API Design will be a plus)
Fair spoken and written English Flexibility - Things change around here. FAST!
Other Inter-personal skills like self-motivation, persistency, patience and eagerness to learn and work independently.
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge in postgre
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app
Our goal
We are reinventing the future of MLOps. Censius Observability platform enables businesses to gain greater visibility into how their AI makes decisions to understand it better. We enable explanations of predictions, continuous monitoring of drifts, and assessing fairness in the real world. (TLDR — build the best ML monitoring tool)
The culture
We believe in constantly iterating and improving our team culture, just like our product. We have found a good balance between async and sync work — default is still Notion docs over meetings, but at the same time, we recognize that as an early-stage startup brainstorming together over calls leads to results faster. If you enjoy taking ownership, moving quickly, and writing docs, you will fit right in.
The role:
Our engineering team is growing and we are looking to bring on board a senior software engineer who can help us transition to the next phase of the company. As we roll out our platform to customers, you will be pivotal in refining our system architecture, ensuring the various tech stacks play well with each other, and smoothening the DevOps process.
On the platform, we use Python (ML-related jobs), Golang (core infrastructure), and NodeJS (user-facing). The platform is 100% cloud-native and we use Envoy as a proxy (eventually will lead to service-mesh architecture).
By joining our team, you will get the exposure to working across a swath of modern technologies while building an enterprise-grade ML platform in the most promising area.
Responsibilities
- Be the bridge between engineering and product teams. Understand long-term product roadmap and architect a system design that will scale with our plans.
- Take ownership of converting product insights into detailed engineering requirements. Break these down into smaller tasks and work with the team to plan and execute sprints.
- Author high-quality, highly-performance, and unit-tested code running on a distributed environment using containers.
- Continually evaluate and improve DevOps processes for a cloud-native codebase.
- Review PRs, mentor others and proactively take initiatives to improve our team's shipping velocity.
- Leverage your industry experience to champion engineering best practices within the organization.
Qualifications
Work Experience
- 5+ years of industry experience (3+ years in a senior engineering role) preferably with some exposure in leading remote development teams in the past.
- Proven track record building large-scale, high-throughput, low-latency production systems with at least 3+ years working with customers, architecting solutions, and delivering end-to-end products.
- Fluency in writing production-grade Go or Python in a microservice architecture with containers/VMs for over 5+ years.
- 2+ years of DevOps experience (Kubernetes, Docker, Helm and public cloud APIs)
- Worked with relational (SQL) as well as non-relational databases (Mongo or Couch) in a production environment.
- (Bonus: worked with big data in data lakes/warehouses).
- (Bonus: built an end-to-end ML pipeline)
Skills
- Strong documentation skills. As a remote team, we heavily rely on elaborate documentation for everything we are working on.
- Ability to motivate, mentor, and lead others (we have a flat team structure, but the team would rely upon you to make important decisions)
- Strong independent contributor as well as a team player.
- Working knowledge of ML and familiarity with concepts of MLOps
Benefits
- Competitive Salary 💸
- Work Remotely 🌎
- Health insurance 🏥
- Unlimited Time Off ⏰
- Support for continual learning (free books and online courses) 📚
- Reimbursement for streaming services (think Netflix) 🎥
- Reimbursement for gym or physical activity of your choice 🏋🏽♀️
- Flex hours 💪
- Leveling Up Opportunities 🌱
You will excel in this role if
- You have a product mindset. You understand, care about, and can relate to our customers.
- You take ownership, collaborate, and follow through to the very end.
- You love solving difficult problems, stand your ground, and get what you want from engineers.
- Resonate with our core values of innovation, curiosity, accountability, trust, fun, and social good.
https://www.oziva.in/">OZiva is India's leading clean, plant based nutrition brand, combining modern science and ancient Ayurveda. We aim towards driving the paradigm shift from curative health care to preventive healthcare by focusing on the two fundamental pillars of fitness - nutrition and exercise.
OZiva is a startup founded by IIT, INSEAD and Mumbai University alumni with an existing vision to help people lead a healthier and better lifestyle.
We run a powerful, high impact, fast paced operation with cutting edge technology and good old-fashioned passion for making people healthier and fitter.
Job Responsibilities
- Work with product managers to understand product requirements and make them live.
- Ownership of end to end development
Must Haves
- Startup mindset of getting things done and focussing on business goals
- Proven problem solving skills
- 3+ years Hands on experience in designing and developing applications using server side technology (Java, Spring Boot / Node.js, Express)
- Excellent knowledge of Relational Databases, SQL and ORM technologies
- Good knowledge of design patterns
- Proficiency in REST architecture
- Experience with test-driven development
- Experience with Git/CI/CD/Gradle/Maven
- Inclination towards writing quality and performant code
Nice to Have
- Experience in Agile development
- Performance tuning, testing, refactoring and automation
- Experience working with AWS Cloud and Devops technologies (terraform , cloudformation, ansible)
- Experience running a production environment
· Strong knowledge of core java & spring boot
· Hands-on experience on payment switch integration
· Good knowledge of ISO8583 and EMV Data.
· Hands-on experience on any database like MySQL, oracle...etc.
· Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines.
· In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card
· Well versed with payment standards and ISO8583 and EMV data (mandatory),
· Hands on experience with Switch payment integration
· Resolve technical issues for designers and developers during project lifecycle
· Excellent problem solving/troubleshooting skills on Java/J2EE technologies
· Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs.
· Excellent communication (written and verbal) and interpersonal skills
Payment card industry preferred
Positions : 2-3
CTC Offering : 40,000 to 55,000/month
Job Location: Remote for 6-12 months due to the pandemic, then Mumbai, Maharashtra
Required experience:
Minimum 1.5 to 2 years of experience in Web & Backend Development using Python and Django with experience in some form of Machine Learning ML Algorithms
Overview
We are looking for Python developers with a strong understanding of object orientation and experience in web and backend development. Experience with Analytical algorithms and mathematical calculations using libraries such as Numpy and Pandas are a must. Experience in some form of Machine Learning. We require candidates who have working experience using Django Framework and DRF
Key Skills required (Items in Bold are mandatory keywords) :
1. Proficiency in Python 3.x based web and backend development
2. Solid understanding of Python concepts
3. Strong experience in building web applications using Django
4. Experience building REST APIs using DRF or Flask
5. Experience with some form of Machine Learning (ML)
6. Experience in using libraries such as Numpy and Pandas
7. Some form of experience with NLP and Deep Learning using any of Pytorch, Tensorflow, Keras, Scikit-learn or similar
8. Hands on experience with RDBMS such as Postgres or MySQL
9. Comfort with Git repositories, branching and deployment using Git
10. Working experience with Docker
11. Basic working knowledge of ReactJs
12. Experience in deploying Django applications to AWS,Digital Ocean or Heroku
KRAs includes :
1. Understanding the scope of work
2. Understanding and adopting the current internal development workflow and processes
3. Understanding client requirements as communicated by the project manager
4. Arriving on timelines for projects, either independently or as a part of a team
5. Executing projects either independently or as a part of a team
6. Developing products and projects using Python
7. Writing code to collect and mathematically analyse large volumes of data.
8. Creating backend modules in Python by building or reutilizing existing modules in a manner so as to provide optimal deliveries on time
9. Writing Scalable, maintainable code
10. Building secured REST APIs
11. Setting up batch task processing environments using Celery
12. Unit testing prepared modules
13. Bug fixing issues as reported by the QA team
14. Optimization and performance tuning of code
Bonus but not mandatory
1. Nodejs
2. Redis
3. PHP
4. CI/CD
5. AWS
• Should have 5+ years of work experience in design, develop, Code and Unit Test web and desktop-based applications written in .Net framework starting from 4.x and above.
• Strong analytical skills to understand a given requirement and provide work estimates.
• Strong Object-Oriented Programming knowledge.
• Strong experience with Static Code Analyzers like Fortify.
• Should have good understanding of web servers such as IIS and Front-end such as HTML’s and Razor based engines.
• Strong debugging skills using .net front end and backend.
• Strong coding experience and thorough understanding of programming languages such as C#, VB.NET, ASP.Net, ADO.Net, JQuery, JavaScript, Traditional Web Services, WCF, Web API and other Scripting languages such as pythons.
• Strong working knowledge on various design patterns such as MVC, MVVM, DDD, Repository Pattern and any custom/hybrid framework as designed by the Architects.
• Should have a strong working knowledge of Azure DevOps.
• Strong knowledge and understanding of data sharing medium using JSON, XML and other media types.
• Strong knowledge on Entity Framework (6 and above) and other ORM such as Dapper.
• Strong knowledge and programming skills in Database such SQL SERVER, Oracle, My SQL and SQL Express. Additionally, nice to know-how knowledge in MS ACCESS.
• Strong knowledge and coding experience in REST based web services and service-oriented design patterns using WCF and other API’s.
• Should have used IDE such as Visual Studio and Visual Studio Code for Front-end development.
• 1+ years of building SPA web solutions using Angular 6/7/8 , BackBone, Bootstrap
• 5+ years building HTML5 complaint pages
• 3+ years of experience using TypeScript
• 3+ years of writing automated testing using Jamine or others
Day to Day job Duties: (what this person will do on a daily/weekly basis)
• Co-ordinate/mentor other Junior developers on a day to day basis.
• Understand the use cases/User Story, code and develop on a designed platform/pattern.
• Strict adherence to coding standards.
• Participate self-code review/peer reviews and correct errors wherever applicable before checking in the final code into the Branch/code repo.
• Create code documentations wherever applicable and as set guidelines by the team.
• Create and perform Unit Tests wherever applicable as set guidelines by the team.
• Provide feedback and assist in estimation planning.
• Merge code branches as and when required.
• Create and publish release documentations and application deployments as and when requested.
• Report out statuses to the leads onshore daily during the Stand-up calls.
• Additionally, update efforts on a given work item on everyday basis.
• Provide true estimates on work assigned prior development. Also ask questions/provide comments on User Stories/work items assigned.
• Be a team player and flexible towards availability in case of any urgent issues that need immediate attention.
• Plan out vacations in advance (min. 2 weeks of adv. Notice).
Nice to have(not a must) experience, skills
• Good understanding of Service Workers.
• Prior coding experience using FORTRAN.
• Experience on 3rd party tools like Spire.Pdf, PDF.Js.
• Knowledge of Rapid application development framework like DevExpress, Code on Time, HighCharts.
• Knowledge of code clean up tools like CodeMaid.
• Knowledge of Power BI and O365 Suites of applications.
• knowledge of SQL Data tools like SSIS and SSRS.
- Experience in PHP & MySQLi, various open source frameworks,
- Strong knowledge in JavaScript, XHTML, CSS, AJAX, SQL,
- Strong Knowledge in Frameworks like Laravel
- Strong skills of APIs Creation & integration
- Knowledge of Cloud Servers like AWS, Digital ocean
- Know how to Secure the PHP Scripts from attacks or injections,









