Mirabel Technologies ( Product Based) | Full stack .Net Developer| 1-5

Senior AI Engineer — Ruby on Rails

Techjays · Coimbatore / Chennai · Hybrid · Immediate – 30 Days Notice

About Techjays

We're the AI Reimagination Company — and that's not a tagline we put on a deck. It's what we actually do.

Techjays helps global enterprises rebuild the way they operate using AI at the core: not as a pilot, not as a feature, but as a foundational layer across products, workflows, and infrastructure. We're an Anthropic partner, which means our engineers get early access to frontier models and tools before they hit the market.

Our team includes engineers and leaders from Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. We run like a high-agency startup, but we build production systems that real enterprise clients depend on.

Every project is greenfield. Every line of code you write ships.

What This Role Actually Is

This isn't a "keep the monolith alive" job.

You'll be designing and building new AI-powered features, integrating LLM APIs into production Rails applications, and using Claude Code as a core part of your daily workflow — not as an experiment. You'll work directly with US-based enterprise clients alongside Product Managers, AI Business Consultants, and Delivery Excellence Managers.

Your architecture decisions will have visible business impact.

What You'll Own

• Design, build, and maintain production-grade Ruby on Rails applications for US enterprise clients — from architecture to deployment
• Integrate LLM APIs (Claude, GPT-4, Gemini) into the Rails stack, building AI-powered features that drive real business outcomes
• Use Claude Code daily as your AI development partner — for generation, debugging, documentation, and velocity
• Build responsive, performant React front-ends from wireframes and design specs
• Own RESTful and GraphQL API design for client applications and third-party integrations
• Drive database design and optimisation — schema, queries, indexing, and migrations on PostgreSQL/MySQL
• Lead code reviews and raise the technical bar through constructive feedback
• Document architecture decisions, API contracts, and implementation patterns

Must-Haves

• 6+ years of deep, production-grade Ruby on Rails experience — advanced framework patterns, background jobs (Sidekiq/Redis), design patterns, best practices
• Hands-on experience with Claude Code (Anthropic) for AI-assisted development — this is central to how we build
• Strong React skills — hooks, component architecture, state management, wireframe to production
• Expert-level PostgreSQL/MySQL — schema design, query optimisation, indexing, performance tuning
• Proven experience designing RESTful and GraphQL APIs at scale
• Experience integrating third-party LLM APIs (OpenAI, Anthropic, Google Gemini) into production Rails apps
• Strong software architecture fundamentals — MVC, service objects, design patterns, testability
• Deep comfort with Git, Gitflow, and PR-based collaboration workflows

Good to Have

• Python for scripting, automation, or backend service integration alongside Rails
• AWS familiarity — EC2, S3, RDS, Lambda — for deployment and infrastructure
• MongoDB or NoSQL in polyglot persistence architectures
• Vector databases (Pinecone, pgvector, Weaviate) for LLM application development
• LangChain, LangGraph, or similar orchestration frameworks for AI agents
• SaaS multi-tenancy patterns and high-traffic web application experience
• Open source contributions or a strong public GitHub profile

Why Join Techjays

• Claude Code is standard practice here, not a side experiment — you'll use it every day to ship faster and smarter
• Anthropic partner access — early visibility into frontier AI tools and capabilities before the market sees them
• Greenfield only — you'll design architecture, not inherit technical debt
• Global client exposure — your engineering decisions translate directly to measurable business outcomes for US enterprise clients
• Team pedigree — you'll learn alongside engineers who've shipped at real scale at Google, Akamai, and NetApp
• AI is the product here, not a feature. You'll spend your career at the intersection of software engineering and AI systems

What We're Looking For Beyond the Resume

• Builder mindset — you think in systems, not tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous, fast-moving environments
• Clear communicator, collaborative team player

What We Offer

• Competitive compensation
• Hybrid work — Coimbatore office or remote flexibility
• Paid holidays and flexible time off
• Medical insurance for self and family (up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems for global clients
• A culture built on clarity, integrity, and continuous growth

Location: Coimbatore / Chennai — Hybrid Notice Period: Immediate to 30 days preferred

Senior Full Stack Developer – Analytics Dashboard

Job Summary

We are seeking an experienced Full Stack Developer to design and build a scalable, data-driven analytics dashboard platform. The role involves developing a modern web application that integrates with multiple external data sources, processes large datasets, and presents actionable insights through interactive dashboards.

The ideal candidate should be comfortable working across the full stack and have strong experience in building analytical or reporting systems.

Key Responsibilities

• Design and develop a full-stack web application using modern technologies.
• Build scalable backend APIs to handle data ingestion, processing, and storage.
• Develop interactive dashboards and data visualisations for business reporting.
• Implement secure user authentication and role-based access.
• Integrate with third-party APIs using OAuth and REST protocols.
• Design efficient database schemas for analytical workloads.
• Implement background jobs and scheduled tasks for data syncing.
• Ensure performance, scalability, and reliability of the system.
• Write clean, maintainable, and well-documented code.
• Collaborate with product and design teams to translate requirements into features.

Required Technical Skills

Frontend

• Strong experience with React.js
• Experience with Next.js
• Knowledge of modern UI frameworks (Tailwind, MUI, Ant Design, etc.)
• Experience building dashboards using chart libraries (Recharts, Chart.js, D3, etc.)

Backend

• Strong experience with Node.js (Express or NestJS)
• REST and/or GraphQL API development
• Background job systems (cron, queues, schedulers)
• Experience with OAuth-based integrations

Database

• Strong experience with PostgreSQL
• Data modelling and performance optimisation
• Writing complex analytical SQL queries

DevOps / Infrastructure

• Cloud platforms (AWS)
• Docker and basic containerisation
• CI/CD pipelines
• Git-based workflows

Experience & Qualifications

• 5+ years of professional full stack development experience.
• Proven experience building production-grade web applications.
• Prior experience with analytics, dashboards, or data platforms is highly preferred.
• Strong problem-solving and system design skills.
• Comfortable working in a fast-paced, product-oriented environment.

Nice to Have (Bonus Skills)

• Experience with data pipelines or ETL systems.
• Knowledge of Redis or caching systems.
• Experience with SaaS products or B2B platforms.
• Basic understanding of data science or machine learning concepts.
• Familiarity with time-series data and reporting systems.
• Familiarity with meta ads/Google ads API

Soft Skills

• Strong communication skills.
• Ability to work independently and take ownership.
• Attention to detail and focus on code quality.
• Comfortable working with ambiguous requirements.

This is a full-time on-site role for a Full Stack Developer, located in Bengaluru. The Back End Developer will be responsible for designing, developing, and maintaining the server-side of web & app applications. 

MERN STACK DEVELOPER

ABOUT US

Datacultr is a global Digital Operating System for Risk Management and Debt Recovery, we drive Collection Efficiencies, Reduce Delinquencies and Non-Performing Loans (NPL’s). Datacultr is a Digital-Only provider of Consumer Engagement, Recovery and Collection Solutions, helping Consumer Lending, Retail, Telecom and Fintech Organizations to expand and grow their business in the under-penetrated New to Credit and Thin File Segments.

We are helping millions of new to credit consumers, across emerging markets, access formal credit and begin their journey towards financial health. We have clients across India, South Asia, South East Asia, Africa and LATAM.

Datacultr is headquartered in Dubai, with offices in Abu Dhabi, Singapore, Ho Chi Minh City, Nairobi, and Mexico City; and our Development Center is located out of Gurugram, India.

ORGANIZATION’S GROWTH PLAN

Datacultr’s vision is to enable convenient financing opportunities for consumers, entrepreneurs and small merchants, helping them combat the Socio-economic problems this segment faces due to restricted access to financing.

We are on a mission to enable 35 million unbanked & under-served people, access financial services by the end of 2026.

Position Overview

We are looking for a talented and enthusiastic MERN Stack Developer to join our development team. As a MERN developer, you will be responsible for building and maintaining full-stack web applications using MongoDB, Express.js, React.js, and Node.js.

Core Responsibilities

• Develop, test, and maintain full-stack web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Design and implement robust, scalable, and secure RESTful APIs and backend services.
• Collaborate with UI/UX designers to build responsive, intuitive, and user-friendly web interfaces.
• Optimize applications for performance, speed, and scalability.
• Write clean, well-documented, and maintainable code following best practices.
• Participate in code reviews, team discussions, and agile ceremonies to ensure high-quality software delivery.
• Bonus skills: Familiarity with TypeScript, Docker, and CI/CD pipelines is a strong plus.
• Experience with cloud platforms such as AWS will be considered an added advantage.

Key Requirements

• 1 – 2.5 years of hands-on experience in full-stack development using the MERN stack.
• Proficiency in React.js, Node.js, Express.js, and experience with both PostgreSQL and MongoDB.
• Strong foundation in JavaScript, along with HTML5 and CSS3.
• ·Experience integrating and working with REST APIs and third-party APIs.
• ·Familiarity with Git and collaborative version control workflows.
• ·Solid problem-solving, debugging, and analytical skills.
• · Experience working in an Agile/Scrum development environment.

What We Offer

•  Opportunity to shape the future of unsecured lending in emerging markets
•  Competitive compensation package
•  Professional development and growth opportunities
• Collaborative, innovation-focused work environment
• Comprehensive health and wellness benefits

Location & Work Model

• Immediate joining possible 
• Work From Office only
• Based in Gurugram, Sector 65

Key Qualifications

1) BS/MS in Computer Science or relevant field and 6+ years of experience in building backend services with

Python 3.7.x using Django >= 2.2.1, Django REST framework >= 3.13.1, Flask >=1.1.2 and relational databases

design and maintenance.

2) At least 4 years of solid experience in working with front-end MVC framework React and caching strategies

(memcached, Redis).

3) Expertise in building microservices-based and cloud-based architectures including development and deployment

in AWS.

4) At least 3 years of experience with Web Application technologies: REST, MongoDB, MySQL, NoSQL, AWS

Lambda, API Gateway and web servers Apache, Nginx.

5) Follows coding best practices to produce tested, scalable, reliable and maintainable code.

6) Hands-on experience in developing, deploying, and releasing large-scale applications.

Responsibilities

1) Understand complex requirements, scope and architect major features and perform API technical design for

junior developers to enhance the product at all layers.

2) Think in terms of future possibility of features, backward compatibility, and application performance.

3) Build cloud-based Python Django software products and implement UI components in React.js framework.

4) Write quality code (with comments, unit tests & documentation), design, implement and manage data pipelines

at enterprise scale with data migration and production data maintenance.

5) Collaborate with different teams to conceptualize, design, and build highly scalable and reliable software

solutions with REST APIs following SDLC best practices and DevOps principles.

6) Work closely with product, project and business teams to translate user feedback and company vision into

technical roadmap.

7) Possess strong product-centric mindset. You should be interested in the way software products are built and

comfortable to be proactive with your ideas and opinions.

 Must Have: BE/BTech/ME/MTech in Computer Science or Information Technology

Our Stack

Back-end: Python, Django REST, MySQL, Celery, Rabbitmq, Sqlalchemy, RDS

Front-end: JavaScript, React, HTML, CSS, Bootstrap

Ops: Docker, AWS, RDS, Terraform, Github Actions, AWS Route53, AWS cloudwatch

Full Stack Developer (Dotnet & Angular)

• Develop web applications in C#, ASP.NET Core, ASP.NET MVC/WebAPI
• Design and develop backend APIs for complex custom business applications as per requirement
• Design and develop database schema, queries, stored procedures
• Develop frontend SPA using AngularJS/Angular 2+, API integration, Data binding
• Collaboration with developer team, Project managers to ideate software solutions
• Essential communication skills for customer conference calls and meetings
• Interact with clients and other stakeholders to understand their requirements/problems, provide daily updates, plan and module delivery
• Test software to ensure quality and efficiency
• Responsible to troubleshoot bugs and fix them as well as maintain/enhance existing projects
• Write technical documentation
• Working with Agile and Scrum methodologies
• Extensive knowledge of database performance optimization strategies, indexing, sharding
• Develop applications using TDD (Test Driven Development), Unit testing, Integration testing, NUnit/XUnit framework
• Design HLD/LLD architecture diagrams, Infrastructure diagrams, ER Diagrams

• C#
• NET/ASP.NET Core
• Entity Framework
• Javascript
• Typescript
• Angular
• Relational Databases (Postgresql etc.)
• NoSQL (MongoDB, DynamoDB etc.)
• NUnit/XUnit

• AWS/Azure/GCP
• Docker
• Kubernetes
• Microservices

Seeking passionate and senior software engineers having 5+ years of experience in Ruby on Rails.

You are a full-stack engineer with an innate passion for writing elegant, idiomatic & pragmatic code.

• Excellent verbal & written communication skills. And you enjoy collaborating with others
• 5+ years of experience with Ruby on Rails or other Ruby frameworks
• Sound knowledge of object-oriented programming concepts and design patterns
• Strong knowledge of relational database concepts, PostgreSQL, MySQL, etc.
• Working knowledge of Javascript, DOM, CSS, HTML
• Strong experience with Git versioning system, PR review process, and Code quality metrics
• You understand the importance of concepts like "Test Driven Development" and utilize them to bring more stability & predictability in applications. We are a heavy user of RSpec, Unit Testing, Continuous Integration (CI) & Continuous Deployments (CD)

• Experience with modern Javascript libraries, frameworks & its ecosystem will be a huge plus. Example: React.js / Ember.js / Angular.js / Vue.js etc.
• Working knowledge or understanding of the SaaS ecosystem will be a plus
• Experience with Micro-service Architecture, Service Oriented Architecture (SOA), GraphQL, and REST APIs will be a huge plus
• Knowledge of Sidekiq, Redis, Solr, Heroku, AWS will be a huge plus
• Experience working with Payment Gateways like Chargify, or Stripe will be a plus
• Contribution to open source projects, have participated in some technical community or meetups or interest group or have written or spoken in public about their technical ideas
• Inclination to develop your own gems or reusable components or libraries
• Exposure to cloud deployment on Amazon or deployment on Heroku or standalone virtual servers etc. (or exposure to PaaS)
• Inclination to develop your own gems or reusable components or libraries

• We're a remote-friendly and calm company
• We use the latest and powerful hardware for software development
• We are heavy on extreme programming and agile methodology. Our DNA is engineering practices like TDD, CI, CD, Code reviews, Pair programming, etc
• We love to collaborate and contribute to open source projects (check: https://www.github.com/kiprosh">Kiprosh Github)
• We encourage and help you to blog about your development experience with the rest of the world. (check: https://blog.kiprosh.com/">Kiprosh Engineering Blogs)
• Our dedicated CoE (Center of Excellence) group ensures that company-wide we all achieve excellence in the area of our interest, learn the latest and greatest, and keep sharing product & technology topics regularly across the organization
• Company-wide, we conduct monthly events to have fun together as a One Kiprosh team.
• We are big on rewards and recognition. We celebrate spotlight awards every quarter. We have yearly award ceremonies and celebrations. (check: https://www.linkedin.com/company/kiprosh">Kiprosh Linkedin Page)
• We have company-wide outings twice a year (but pause for a year since March 2020 due to Covid19 pandemic)
• We are a passionate group of humble, kind, and fun-loving individuals

• Own and implement features used by large customers like Truecaller, Mozilla, Zomato, Netflix, etc.
• Performance, Security and Usability goals are in DNA.
• Full ownership and accountability of Microservices which includes day-to-day operations and maintenance.
• Business and technical Metric definitions and reviews.
• Drive CI & CD Evaluate technologies and development stacks for API-based platform which scales to 100,000 transactions per second.
• Perform push-button deployments of any version of the software to any environment on demand.
• Design and build web apps that are scalable and puts user experience front and center.
• Develop modular UI components for company-wide reuse.
• Evolve a common design language for UI across apps.
• Establish and advocate front-end coding guidelines.
• Meld UX and great-looking UI while keeping excellent code quality.
• Own end-to-end life cycle of the product from requirement analysis, design, development, test, release, and maintenance.
• Develop reusable tools/libraries
• Identify opportunities for automation and collaboration points.
• Continuously improve cycle time, throughput, and code quality.
• Continuously improve value-adding-activities/non-value-adding activities ratio.

• 4 - 6 years of experience in large-scale distributed systems.
• Proficient in Python/Golang/Java/ http://node.js/">Node.js 
• Understanding of CSS, Advanced Javascript, http://vue.js/">Vue.js, http://react.js/">React.js, and other web technologies.
• Understanding of Rest based API Architecture
• Writing high-performance, reliable and maintainable code.  
• Excellent microservices pattern understanding.  
• Ability to define cross-core contracts and bring them to closure through collaboration.
• Good knowledge of database structures, theories, principles, and practices.  
• Experience working with AWS components [EC2, S3, RDS, SQS, ECS, Lambda].
• Analytical and problem-solving skills  
• Good aptitude in multi-threading and concurrency concepts.  
• Working knowledge of Git and proficiency with at least one build server: Jenkins/Travis/Bamboo.
• Good to have a telecom background