
Numino Labs
Business: Software product engineering services: Pune, Goa.
Clients: Software product companies in the USA.
Business model: Exclusive teams for working on client products; direct and daily interactions with clients
Client
Silicon Valley startup in genAI: 45m+ in funding.
Product: B2B SaaS.
Core IP: Physics AI foundation model for hardware designers with specific focus on semi-conductor chip design.
Customers: World's top chip manufacturers
Responsibilities
- Team player: Delivers effectively with teams; interpersonal skills, communication skills, risk management skills
- Technical Leadership: Works with ambiguous requirements, designs solutions, independently drives delivery to customers
- Hands on coder: Leverages AI to drive implementation across Reactjs, Python, DB, UnitTest, TestAutomation & Cloud Infra & CI/CD Automation.
Requirements
- Strong computer science fundamentals: data structures & algorithms, networking, RDBMS, and distributed computing
- 8-15 years of experience on Python Stack: Behave, PyTest, Python Generators & async operations, multithreading, context managers, decorators, descriptors
- Python frameworks: FastAPI or Flask or DJango or SQLAlchemy
- Expertise in Microservices, REST/gRPC APIs design, Authentication, Single Sign-on
- Experience in high performance delivering solutions on Cloud
- Some experience in FE: Js & Nextjs/ReactJs
- Some experience in DevOps, Cloud Infra Automation, Test Automation

About Numino Labs
About
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Senior Xano Developer
Visual Backend Development, APIs & AI-Assisted Build
📍 Mumbai (On-site) | Full-time | 3-5 years
About the Role:
Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies.
We are hiring a Xano Developer who will build backend systems and APIs for our customer engagements on Xano, the visual backend development platform.
The mandatory requirement for this role is hands-on production backend engineering experience, including PostgreSQL data modelling and REST API design, in either a Node.js or Python environment.
Prior production work on Xano is strongly preferred.
The role is hands-on and customer-facing. You will own backend delivery across engagements: designing data models, building API flows in Xano, integrating third-party services, and partnering with frontend, mobile, and AI engineers on contracts and behaviour.
The work spans all three Xano build modes: no-code function stacks, custom code through Xano’s scripting and code blocks, and Xano’s AI assistance and agentic features.
A typical week includes a data model review for a new engagement, building a complex API flow in Xano, integrating a third-party webhook, and a customer working session on a new module.
Responsibilities:
Backend Delivery on Xano
Own end-to-end backend implementation on Xano: database schema, API endpoints, function stacks, background tasks, and integrations.
Ship production-ready work that meets customer requirements and engineering quality standards.
Build Across All Three Xano Modes
Use Xano’s no-code function stacks for standard CRUD and business logic.
Drop into custom code (JavaScript, Python through code blocks, expressions) where visual flows would be unwieldy.
Use Xano’s AI assistance and agentic features to accelerate routine build work.
Database Design on PostgreSQL
Own data model decisions for each engagement: table design, relationships, indexes, addons, and query performance.
Make schema choices that hold up as product usage grows and that map cleanly to the API contracts the client needs.
API Design and Integration
Design clean REST API contracts that the frontend, mobile, and third-party consumers can rely on.
Cover authentication, input validation, pagination, error handling, and rate limiting.
Integrate external services (payment gateways, messaging, storage, AI providers) through Xano’s connectors and custom requests.
Product Thinking and Solutioning
Translate fuzzy product asks from customers into concrete backend solutions.
Ask the right questions about edge cases, data lifecycle, multi-tenancy, and access control before building.
Push back on requirements that will cause pain later.
Customer Communication
Work directly with customers in discovery, design reviews, demos, and weekly working sessions.
Explain trade-offs in plain language, present options with clear recommendations, and write tight technical updates.
AI-Assisted Backend Development
Use Xano’s built-in AI features as well as external AI tools (Claude, Cursor, and similar) day to day for schema drafts, function stack scaffolding, query writing, integration setup, and review.
Develop strong instincts for when AI output is usable as-is and when it must be reworked.
Quality, Testing, and Reliability
Test the flows you ship.
Set up sensible error handling, logging, and alerts for the backend services you own.
Participate in incident response when something breaks in production.
Documentation and Handover
Document data models, API contracts, and non-obvious decisions inside Xano and in shared docs so the rest of the team and the customer can pick up the work without you in the room.
Continuous Learning
Track changes to the Xano platform, including new features, performance improvements, and AI capabilities.
Apply them to active engagements where they reduce build effort or improve product outcomes.
Requirements:
Hands-on Production Backend Engineering Experience (Mandatory)
Must have personally shipped backend systems to production for real users, with ownership of API design and data modelling.
POCs, coursework, and internal-only tools do not qualify.
3 to 5 Years of Professional Backend Engineering Experience
In either a Node.js or Python environment.
Candidates with slightly less time but strong demonstrated ownership are welcome to apply.
Strong PostgreSQL Skills
Schema design, indexing, query writing, and migrations on at least one production system.
Able to reason about query performance and design data models that hold up under realistic product usage.
REST API Design and Integration Depth
Comfort designing API contracts that are clean, predictable, and easy for frontend, mobile, and third-party consumers to work with.
Experience integrating external services such as payment gateways, messaging providers, storage, and AI APIs.
Familiarity with at Least One Node.js or Python Backend Stack
Such as Express, NestJS, Fastify, FastAPI, Django, or Flask.
Comfort reading and writing application code outside of visual environments when the situation calls for it.
Product Thinking and Solutioning
Ability to take a fuzzy product brief, ask the right questions, and propose a backend design that is fit for purpose.
Strong instincts for what to build first, what to defer, and what not to build.
Strong Written and Spoken English Communication
Confident in customer working sessions and design reviews.
Comfortable writing precise technical documentation and explaining trade-offs to non-engineering stakeholders.
Cloud and Deployment Fundamentals
Working knowledge of at least one of AWS, GCP, or Azure: deploying services, reading logs, managing environments, and basic operational tasks.
Familiarity with Docker is a plus.
Bachelor’s Degree
Bachelor’s degree in Computer Science, Information Technology, or a related engineering discipline.
Exceptional candidates with demonstrable production experience and strong portfolios may be considered without a formal degree.
Nice to Have
- Prior production experience on Xano, Bubble, Retool, or comparable visual or low-code backend platforms
- Full stack experience with React, Next.js, React Native, or Flutter
- Experience integrating LLM APIs (OpenAI, Anthropic, Google) into backend workflows
- Multi-tenant SaaS product experience
- Prior agency, consulting, or product-engineering experience
WHAT YOU'LL WORK ON
- Design and implement scalable APIs and microservices using Node.js & Express
- Manage deployments via GitHub Actions and CodeDeploy; work with Docker & AWS
- Optimize MongoDB queries and use Redis caching for high-concurrency traffic
- Bridge Figma designs to backend logic using Next.js and Tailwind CSS
- Maintain monitoring with Nginx & PM2 to ensure 99.9% uptime
WHAT WE'RE LOOKING FOR
- 1+ year of professional experience building and maintaining production applications
- Deep Node.js knowledge: async programming, RESTful API architecture
- MongoDB mastery: schema design, indexing strategies, complex aggregation pipelines
- Hands-on AWS (EC2/S3 minimum) and practical CI/CD pipeline experience
- Proven ability to take a feature from PRD / Figma to stable production deployment
WHAT WILL MAKE YOU STAND OUT
- Experience maintaining apps with high concurrent user counts
- Comfortable with Nginx configs and Dockerfiles
- Hands-on with payment gateway integration (Cashfree) and webhook handling
- Obsession with maintainable, well-documented, DRY code
AI Usage Policy:
AI tools (Cursor, Copilot, GPT-4) are force multipliers — use them. But you must own your code, reason hrough architectural trade-offs, and debug without relying solely on AI.
HOW TO APPLY:
- Tell us about the most complex bug you've solved or a backend system you built from scratch
- Share your GitHub profile
- Include at least two live project links showcasing your best work
- Your code will directly impact the learning outcomes of thousands of students.
Strong Engineering Manager / Lead Profiles
Mandatory (Experience 1) - Must have 8+ years of overall Software Engineering/Development experience
Mandatory (Experience 2) - Must have 3+ years of experience as Engineering Manager / Team Lead role, with ownership of technical direction, delivery, and people management
Mandatory (Experience 3) - Must have hands-on Backend development experience using Python or Java, with frameworks such as FastAPI / Django / Spring / Express (Node.js)
Mandatory (Experience 4) - Must have Frontend development exposure using ReactJS, JavaScript, HTML, CSS
Mandatory (Experience 5) - Must have experience designing and building APIs, services, and integrations, including system design, PR reviews, and architectural decision-making.
Mandatory (Experience 6) - Must have experience leading engineers end-to-end – mentoring, code reviews, execution planning, and improving team productivity/quality
Mandatory (Company) - Must be from Product Companies / Startups (early to growth stage), B2B SaaS + Fintech industry is highly preferred
Mandatory (Note) - This role will be 80% team management and 20% IC (hands on coding required)
We are seeking a highly skilled and motivated Python Developer with hands-on experience in AWS cloud services (Lambda, API Gateway, EC2), microservices architecture, PostgreSQL, and Docker. The ideal candidate will be responsible for designing, developing, deploying, and maintaining scalable backend services and APIs, with a strong emphasis on cloud-native solutions and containerized environments.
Key Responsibilities:
- Develop and maintain scalable backend services using Python (Flask, FastAPI, or Django).
- Design and deploy serverless applications using AWS Lambda and API Gateway.
- Build and manage RESTful APIs and microservices.
- Implement CI/CD pipelines for efficient and secure deployments.
- Work with Docker to containerize applications and manage container lifecycles.
- Develop and manage infrastructure on AWS (including EC2, IAM, S3, and other related services).
- Design efficient database schemas and write optimized SQL queries for PostgreSQL.
- Collaborate with DevOps, front-end developers, and product managers for end-to-end delivery.
- Write unit, integration, and performance tests to ensure code reliability and robustness.
- Monitor, troubleshoot, and optimize application performance in production environments.
Required Skills:
- Strong proficiency in Python and Python-based web frameworks.
- Experience with AWS services: Lambda, API Gateway, EC2, S3, CloudWatch.
- Sound knowledge of microservices architecture and asynchronous programming.
- Proficiency with PostgreSQL, including schema design and query optimization.
- Hands-on experience with Docker and containerized deployments.
- Understanding of CI/CD practices and tools like GitHub Actions, Jenkins, or CodePipeline.
- Familiarity with API documentation tools (Swagger/OpenAPI).
- Version control with Git.
At Primathon, we strive to deliver world-class software for our clients and empower our engineers to become full-stack in technology and provide them 360° experience. We are looking for champions in backend development with experience in NodeJs/Python. You would be working on NodeJs, Python, PostgreSQL, MongoDB, Redis Elastic search, RabbitMq, SQS, Docker, AWS.
Responsibilities and Duties
● Participate in agile software development, prototyping and code reviews
● As a backend engineer, you will work on backend services in Node JS, MongoDB, PostgreSQL, Redis.
● Design, implement and/or use RESTful web services
● Designing database schema
● Writing automation test cases
● Write testable, well-thought-out code within the ecosystem, embracing additional languages and frameworks when appropriate
Required Experience, Skills and Qualifications
● 1+ years of experience as a Backend developer.
● Experience designing, implementing and using RESTful Web Services with Service-Oriented Architecture.
● Knowledge & basic understanding of JavaScript frameworks like React, D3, etc and strong experience working with MVC.
● Solid understanding of version control principles, preferably using Git
● Experience using mocking frameworks, testing frameworks, dependency injection, NoSQL and/or relational databases
● Strong knowledge on how to navigate the vast and quickly evolving collection of open source projects and select the right tool for the job
● Attention to detail and the ability to build reliable, scalable, and flexible software.
Work Experience ** Minimum 2+Years
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.

Java with cloud
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Core Java, SpringBoot, MicroServices |
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- DB2 or any RDBMS database application development |
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- Linux OS, shell scripting, Batch Processing |
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- Troubleshooting Large Scale application |
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- Experience in automation and unit test framework is a must |
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- AWS Cloud experience desirable |
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- Agile Development Experience |
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- Complete Development Cycle ( Dev, QA, UAT, Staging) |
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- Good Oral and Written Communication Skills |
• Strong technical experience with Java 8 and above
• Sound understanding of Database concepts & experienced with MySQL.
• Strong technical experience with JavaScript/Ajax/jQuery
• Good knowledge of Angular 2+ version.
• Good knowledge of REST APIs and Spring Boot.
• Awareness with any of version control systems like Git/SVN/TFS/VSS etc
• Awareness and exposure of AWS architecture components such as S3, SQS, Lambda, EKS etc
Good to Have:
• Knowledge of Docker and Containerization.
• Working in Agile env will be plus.
• Understanding of Code Optimization techniques, Code coverage tool and code analysis tool.
• Working knowledge of CI/CD process.
• Experience of onshore/offshore team collaborations.
• Makes a valuable contribution to team objectives, displays trust and mutual understanding, accepts constructive feedback, and handles confrontation constructively
Expertise in Angular JS, Node JS, React JS.
Job Title: ERPNext Developer
Job Type: Full – Time
Location: Pune
Work Hours: 9: 00 AM to 6:00 PM
Min Salary: As per the Standard Market Rates
MAIN DUTIES/RESPONSIBILITIES:
PRIMARY RESPONSIBILITIES:
The candidate will be required to Design, Configure, Build, Test, Deploy and Maintain ERPNext and Frappe based applications:
- Gathering technical requirements for internal and external customers.
- Creation of documentation for software development and testing.
- Participation and use of Agile development methodologies
- Drive continuous improvement in development and operations best practices
- Ability to convey complex information in both written and oral form to technical and non-technical audiences
Requirements
QUALIFICATIONS, EDUCATION, AND SKILLS:
Core qualifications:
- Excellent written and verbal communication skills
- Good interpersonal communication skills are needed in order to work successfully with prospects, customers, and cross-functional teams to meet development timelines
- Able to understand the complex business process and manage the project.
- Strong aptitude for learning new technologies and understanding how to utilize them in a customer-facing environment
- Hands-on experience in developing ERP applications from the ground up.
- Ability to follow standard engineering principles and practices
- Creative approach to problem-solving
- Working knowledge of object-oriented design and development skills.
- Commercial eCommerce portal development and maintenance is preferred.
- 1-5 years of Experince is mandatory.
Technical qualifications:
- Experience in Frappe, ERPNext, JS, MySQL, Python & Frappe based web development.
- Hands-on Product development over Frappe Framework, ERPNext
- Experience with workflows, access controls, page layouts, custom objects, custom record types, reports, and dashboards design and development
- Experience with Scrum/Agile development methodologies
- OOP concepts and Backend Development Experience
- MySQL on MariaDB or equivalent
- Hands-on experience with hosting web application on Apache or NGINX
- Experience in UI/UX development for Web Applications is essential.
- Experience with one or more ERPNext Modules like Human Resources, CRM, Buying, Selling, Asset Management, Stock, Buying, Accounting, and Project.
- Senior position requires experience with multiple modules of ERPNext.
- BS in computer science or technology equivalent preferred











