Data Engineer (PySpark+SQL)

Job Description: Pre-Sales Technical Consultant - Delhi TBU Pre-Sales

Location: Delhi ( Only Local Candidates to Apply)

Department: Presales (TBU)

Reports to: Technical Manager Presales

Job Type: Full-time

Experience Level: 1-3 years

About the Role

We are seeking a highly skilled and motivated Presales Technical Consultant with a strong background in Electronic Surveillance technologies, including CCTV, Access Control, Video Management Systems (VMS), ANPR, and other security solutions. You will play a key role inbridging the gap between customer needs and technical solutions by delivering customized proposals, technical demonstrations, and solution designs in collaboration with sales and engineering teams.

Key Responsibilities

• Solution Design and Customization:

o Technical presales professionals work with clients to understand their technical requirements and design solutions that fit their specific business needs. This may involve configuring and customizing products, integrating different technologies, and ensuring that the solution aligns with the client's infrastructure.

o They analyze client challenges and propose relevant products or services, often creating detailed technical presentations, demos, and proof of concepts (PoCs) that showcase how the solution will work in the client’s environment.

• Product Demonstrations:

o One of the core responsibilities is delivering live or recorded product

demonstrations. These demos illustrate the solution's features and capabilities, address technical queries, and demonstrate how the product can solve the client’s business challenges.

o Technical presales engineers often use real-world examples, simulations, or customized demos to ensure the potential customer can see how the solution will operate in their specific use case.

• Technical Consultation and Advisory:

o They act as technical advisors to customers throughout the sales process, answering in-depth technical questions, resolving concerns, and providing insights on how a product can integrate with the customer’s current systems.

o In complex environments, they may offer consulting services, such as

architectural design, capacity planning, and scalability assessments to

ensure the proposed solution is viable and effective for the client’s needs.

• Proof of Concept (PoC) Development:

o Technical presales often spearhead the creation of PoCs, which allow potential customers to test the solution in their own environment. This hands-on approach provides a direct opportunity for clients to verify the solution's functionality and ensure it meets their technical and business needs before making a purchasing decision.

o PoCs help mitigate risk and showcase the specific advantages of the product or solution being proposed.

• RFP/RFI Response:

o Technical presales engineers are often responsible for responding to Requests for Proposals (RFPs) and Requests for Information (RFIs) issued by clients. These documents typically outline the client’s technical and business requirements, and it is the presales engineer’s role to provide detailed technical responses, demonstrating how the proposed solution meets or exceeds these requirements.

o They collaborate with the sales and product teams to ensure responses are both technically accurate and commercially viable.

• Technical Documentation:

o Creating and maintaining technical documentation is a key part of the presales role. This can include solution architecture diagrams, technical

specifications, and proposal documents. These materials help provide clarity and detail about the proposed solution and how it will be implemented.

Required Skills & Qualifications

• Bachelor's degree in Electronics, IT, Telecommunications, or a related technical discipline.

• 1-3 years of experience in a presales or technical consulting role or a technical implementation specialist within the electronics industry surveillance or security industry.

• Solid understanding of:

o CCTV (Analog, IP-based systems)

o Access Control Systems

o Video Analytics / AI-based Surveillance

o VMS (e.g., Milestone, Genetec, Axis, etc.)

o Intrusion Detection & Perimeter Security

• Proficiency in Visio, and MS Office suite.

• Strong presentation and communication skills.

• Ability to translate technical features into customer benefits.

• Experience with tenders and solution costing.

What We Offer

• Competitive salary and performance incentives

• Opportunity to work with cutting-edge surveillance technologies

• Professional development and certification support

• Collaborative, tech-driven work environment

Position: Senior React Native Developer (4- 7 years)

Location: Remote (Company in Mumbai)

Company: Big Rattle Technologies Private Limited

Immediate Joiners only.

Summary:

We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.

Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.

KEY RESPONSIBILITIES

• Design and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.
• Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.
• Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.
• Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.
• Implement push notifications, deep linking, in-app navigation, and offline-first strategies.
• Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.
• Collaborate with designers, backend engineers, and product managers in Agile sprints.
• Conduct code reviews and mentor junior mobile developers.

Required Skills:

Core Mobile

▸ React Native CLI & Expo

▸ TypeScript

▸ React Navigation v6+

▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android Studio

E-commerce & Integrations

▸ Product / Cart / Checkout flows

▸ Razorpay, Stripe, PayPal SDKs

▸ Wishlist, search UX, filters

▸ Order tracking & delivery status

▸ Push notifications & deep linking

State & Data

▸ Redux Toolkit / Zustand

▸ React Query / SWR

▸ REST & GraphQL APIs

▸ AsyncStorage / MMKV

▸ Firebase Realtime DB / Firestore

DevOps & Tooling

▸ Fastlane & GitHub Actions / Bitrise

▸ Jest (unit) & Detox (E2E)

▸ Firebase Crashlytics & Sentry

▸ Flipper / Reactotron

▸ App Store & Play Store deployments

Nice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDK

• React Native New Architecture (JSI / Fabric / TurboModules)
• React Native Web or monorepo setups (Nx, Turborepo)
• AR product try-on experiences (ARKit / ARCore)
• Shopify Storefront API or WooCommerce SDK experience
• Accessibility (WCAG mobile) implementation
• Live order-tracking maps (Google Maps / Mapbox)

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.

Why should you join Big Rattle?

Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.

Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.

What We Offer:

• Opportunity to work on diverse projects for Fortune 500 clients.
• Competitive salary and performance-based growth.
• Dynamic, collaborative, and growth-oriented work environment.
• Direct impact on product quality and client satisfaction.
• 5-day hybrid work week.
• Certification reimbursement.
• Healthcare coverage.

Tranzact is a a cloud-based B2B Business platform for Indian Manufacturing & Trading SME's. TranZact brings different teams of SMEs on a single platform where they can collaborate efficiently to manage their entire business.

Responsibilities:

● Making conversation with the prospective SME business owners and moving them to a

product demonstration

● Develop and maintain effective relationships with all key stakeholders of the company.

● Collaborate with all internal and external teams and perform troubleshooting on all client

issues and ensure timely resolution.

● Close sales with qualified leads to generate new business and ensure the client’s needs

are met

● Encourage potential clients to buy premium products and close the best possible deal

● Build customer relationships with existing clients by reaching out via phone calls, emails,

or other forms of communication to increase the likelihood of them using our services

again

● Track sales cycle progress on a monthly and quarterly basis to make sure customer

acquisition goals are met

● Showcase the company’s strengths and highlight our brand by talking exclusively about

the characteristics that make our organization unique.

What do I need?

● MBA graduates preferred

● 2+ years of relevant experience as a business development executive

● Strong problem identification and objections resolution skills

● Tech-savvy with the ability to make complex technical matters easy- to understand even

for non-technical people

● Excellent phone and cold calling skills.

● Excellent verbal and written communication skills

● Ability to multitask, prioritize, and manage time effectively

● Experience of working in a fast-growing unstructured startup environment

● In-depth experience of market research in SME SaaS-tech or SMB segments is

preferred

What happens after I apply?

1. Quick phone call to learn about your experience and why you want to work at Tranzact.

2. Interview rounds with the founders and marketing team.

3. There might be optional rounds customized to your experience.

We aim to close the end-to-end process within 3 days of giving you a phone call.

• Accountable for conversion% of visitors at Gynoveda.com
• Map customer journey, define use cases & service design to drive engagement & purchases
• Build frictionless online customer experience for website & app
• Optimize marketing funnels for customer acquisition, retention, video-content  
• Develop mobile app for menstrual health tracking, online consultation, content marketing
• Drive marketing automation and integrate multiple online SaaS tools using API, plugins
• Build unified tech solutions for - 
• Customers - online sales & support via responsive website and mobile app
• Employees - process & tools for operations, customer service, supply chain

We are B2B Travel Tech startup that is reshaping the way travel agents sell and deliver exceptional travel experiences worldwide. We enable travel agents to book flights, hotels & holidays conveniently and we provide comprehensive end-to-end on-ground travel services. We do over INR 1000 crore+ GMV (sales) and are growing rapidly.

Our strong business model and focus on delivering excellent customer experience has facilitated our sustainable growth funded by internal cashflows. To fuel innovation and growth, we have raised USD 5.5mn+ funds from marquee global investors!

Profile Overview:

iOS Developer at TravClan is a key role which ensures delivering the best experience to our customers on iOS. The engineers in the iOS team will be part of the Mobile Team. The team has built highly rated Android and iOS app and is used by thousands of Travel Entrepreneurs in India. This role will involve immense learning of Travel Technology and Ecommerce concepts providing amazing growth opportunities while working with some of the best engineers in the industry. Some of the Product capabilities include Flight bookings, Holiday Bookings, Hotel Bookings, Visa, Wallet, SaaS Website Builder, Marketing Material Builder, News.

Growth Prospects:    

• Annual CTC - ₹8 to 15 LPA
• ESOPs + promotions + aggressive growth prospects (read further) !
• Fast Appraisal -  Despite Covid, we had appraisals in 6 months in Jan & July 2020 
• Aggressive Hikes - In May'21 & Jan'22, Average Hike was 35% & 30% respectively  

What’s on Offer:

• Work on Best Tech Stack - iOS and Swift, Android, Java, Python/Django, NodeJS, Flutter
• Learn from Best Mentors with Cumulative 50+ years of experience in Tech who previously worked in 4 unicorns.
• Fast Career Growth with fast appraisals and fast salary increase.
• Super passionate team with deep conviction which has stayed together during covid.
• Build world class tech products and leverage technology to drive growth globally!
• Very high ownership role in a fast paced environment.
• Great Culture -> No hierarchy / politics nonsense guaranteed!

Our founding team: 

The founding & engineering team has worked in senior leadership roles at successful internet startups in India and Overseas

• Arun - Cofounder, leads Product & Growth Ex Cars24, TravelTriangle, TripFactory, IIM Bangalore
• Chirag - Cofounder, leads Business Operations Ex Oyo, TravelTriangle, IIM Ahmedabad, IIT Roorkee
• Ashish - Cofounder, leads Technology Ex CTO Cars24, CTO FabFurnish, Gaadi, Ex-Entrepreneur
• Shrawan: VP Engineering, 20+ yrs Tech exp, Ex CTO Millenium Entertainment, One Kosmos
• Akshat: Director Engineering, 16+ yrs Tech exp, Ex Cars24, L&T, Samsung US, Motorola US.
• Rajesh:Director Engineering, 15+ yrs Tech exp, Ex Hike, Foodpanda

Company Profile:

• You read the detailed company profile here.
• To know more about us, have a look at a few videos on Youtube!

What do we value?  

• We are a team of believers. At the same time, we are constantly learning and growing. We are on an audacious mission and a rock-solid belief we can get there.
• We dream big, yet we start small and start quickly. We are not deterred by the extra effort needed to relentlessly execute, iterate, execute to realize our dreams.
• We are a team of differentiated and ambitious individuals, united by a common goal. We are a single team, where every member is important. 
• We believe flexibility in roles and freedom to execute ideas are the two foundation values for aggressive growth. 
• We constantly protect and evolve our culture. As a super energetic and experienced team, we want to enjoy the time we spend together. 

What we are looking for: 

Desired Candidate Profile

• 6 months to 2 years of full time experience in developing iOS apps.
• Ethical, hardworking, and 'passionate about startups' mindset
• Is a self-starter, and loves working in a fast paced environment.
• Excellent structured problem-solving ability
• 
  
• Has worked in an Agile environment and understands what building a MVP is like.

Must have technical skills

• Swift programming language (Control flows, Optionals, View Controllers etc).
• Good understanding of Interface Builder, Storyboards, Cocoa Pods and Git
• Good understanding of AutoLayouts and building responsive apps for multiple iOS devices
• Understanding of Commonly used data structures like Dictionaries etc.
• Understanding of CoreData and NS UserDefaults.
• Understanding of working with APIs using Alamofire, concepts like Pagination of Lists.
• Good knowledge of MVC for iOS, writing Modular code, creating reusable components.
• Working with Push Notifications on APNS.
• Apple developer account and certificates management

Good to have:

• Working with Firebase SDK namely Crashlytics, Remote Config, Analytics, CleverTap.
• Working with TestFlight or Firebase for Beta Testing.
• Working independently and closely with the Product team.
• Worked with Jenkins/CICD for iOS.

The Recruitment Process:

1. Aptitude Test: Every shortlisted candidate initially needs to appear for a one-hour aptitude test. The aptitude test consists of some basic math aptitude problems, descriptive questions, and some technical questions. 

2. Personal Interviews: 2-3 in person/vritual interviews. Detailed discussions about the job profile, company, candidature & tech skills are discussed in these rounds.

3. Extending an offer: On successfully clearing the interview rounds, the job offer is extended to the candidate. This includes financial benefits, ESOPs and many other benefits.

Important Points:

• Office Location- Connaught Place, Delhi 
• Work Timings - 9:30 till work gets over. You are considering joining a startup. Buidling anything of value takes time. The majority of our exits happen within the first 2 months of people joining because new joiners are not able to adjust to the high pace environment. You can expect 10-12 hours of work in a day!

 Looking forward to having you on board with us!

Greetings from Colan Infotech Pvt Ltd !!

Designation - AngularJS Developer

Experience -1+ Years

Salary - As per market standard

Job Location - Chennai

Notice Period - Immediate to 30 Days

Skills

Should have experience in HTML,CSS,Angular JS,Javascript, Jquery

Should have good communication skill

Project Management

• Develop the integrated project plans to determine time frame, procedures for accomplishing projects
• Assess consolidated project plans for dependencies, gaps and continued business value
• Plan and manage project closure and/or transitions
• Work with stakeholders to establish and gain consensus on project goals, objectives and deliverables
• Conduct project reviews to recommend changes to project schedules or resource requirements
• Document and track project scope, changes, issues and risks that affect implementation
• Facilitate the daily stand-up to achieve team consensus
• Eliminate conflicts and assist in developing solutions to manage roadblocks
• Plan and manage testing cycle with customer

Customer Success

• 3-5 years experienced engineer in design; pre / post implementation tracking / successful execution on the following categories:
• Building management systems
• Security systems / cameras; sensors; beacons
• IOT implantation within campuses / buildings
• IT security systems – understanding of the way they work / get implemented
• Comfortable with client interactions and working with client’s vendors / partners

Other Areas:

• Participates periodically in client meetings or business development presentations as part of a Team to help demonstrate our capabilities. Assists with the development of marketing materials and support

Information/data. Maintains a working knowledge of business unit’s available product and service offerings.

Requirements:

Qualifications

• Bachelor's degree or above in computer science, information systems, technology, engineering are preferred.

Other disciplines are welcome to apply if you have a strong interest or sufficient knowledge in IT domains

• At least 4 years of experience in IT Project Management role and 6 years total professional experience
• Strong communication skills, well-versed in English (spoken and written) to facilitate cross border

Communications and collaborations

• Strong stakeholder management skills to communicate across various departments and levels
• Strong time management skills, detailed and results-oriented
• Familiar with startup environment and understanding of dynamics between design, engineering, product and customer service is a plus
• Experience with agile and project management software like Jira
• Committed to the values of integrity, accountability, and customer centric

At Punchh, we are building the next generation AI-enabled marketing loyalty platform. We are looking for a talented UX professional to create best-in-class experiences that drive customer and business value. 

Our ideal candidate excels at leading the design of simple and impactful B2B SAAS products while closely collaborating with design, research, product management, and engineering in a fast-paced, collaborative and customer-focused environment. You will work with various stakeholders to understand user needs, identify use cases, design UX concepts, wireframes, prototypes, and final mock-ups, ensuring pixel-perfect implementation of your designs. 

What You'll Do

• Work closely with other designers, researchers, product managers, engineering, and customers to design simple and elegant products and features
• Develop user personas, use cases, workflows, scenarios, concepts, wireframes, prototypes and final mock-ups to communicate designs to stakeholders
• Conduct competitive analysis to ensure our product is best-in-breed
• Drive the design review cycle with key stakeholders and customers to ensure the designs achieve the set goals
• Lead and support multiple projects simultaneously while meeting deadlines
• Work with engineering to ensure pixel-perfect implementation of your designs

What You'll Need

• 4+ years of experience as a User Experience Designer for complex web applications
• A fundamental understanding of the UX design process from discovery, through definition, design, and implementation
• Bachelor's or Master's Degree in Design (B.Des/M.Des/Any other equivalent degree)
• A passion for creating simple and elegant solutions that drive user and business value
• Proficiency in standard UX software (we use Figma)
• A portfolio of design work with case studies demonstrating your process and the impact of your efforts
• Excellent written and verbal communication skills
• A desire to work collaboratively with cross-functional teammates to deliver the best possible solution for our users

Bonus Points If You

• Possess working knowledge of loyalty programs, CRM, and/or email marketing campaigns
• Understanding of B2B Space

• Integration of user-facing elements developed by front-end developers
• Build efficient, testable, and reusable PHP modules
• Solve complex performance problems and architectural challenges
• Integration of data storage solutions.
• Maintaining social media and admin panel accounts.

• Strong knowledge of PHP web frameworks.
• Understanding the fully synchronous behavior of PHP
• Understanding of MVC design patterns
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Knowledge of object-oriented PHP programming
• Understanding accessibility and security compliance.
• Strong knowledge of the common PHP or web server exploits and their solutions
• Understanding fundamental design principles behind a scalable application
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Familiarity with limitations of PHP as a platform and its workarounds
• Creating database schemas that represent and support business processes
• Familiarity with SQL/NoSQL databases and their declarative query languages
• Proficient understanding of code versioning tools, such as Git.
• Website development and API integrations. Database and password security.