Backend Developer

Our Mission

To make video as accessible to machines as text and voice are today.

At lookup, we believe the world's most valuable asset is trapped. Video is everywhere, but it's unsearchable—a black box of insight that no one can open or atleast open affordably. We’re changing that. We're building the search engine for the visual world, so anyone can find or do anything with video just by asking.

Text is queryable. Voice is transcribed. Video, the largest and richest data source of all, is still a black box. A computer can't understand it, and so its value remains trapped.

Our mission at lookup is to fix this.

About the Role

We are looking for founding Backend Engineers to build a highly performant, reliable, and scalable API platform that makes enterprise video knowledge readily available for video search, summarization, and natural‑language Q&A. You will partner closely with our ML team working on vision‑language models to productionize research and deliver fast, trustworthy APIs for customers.

Examples of technical challenges you will work on include: distributed video storage, a unified application framework and data model for indexing large video libraries, low‑latency clip retrieval, vector search at scale, and end‑to‑end build, test, deploy, and observability in cloud environments.

What You’ll Do:

• Design and build robust backend services and APIs (REST, gRPC) for vector search, video summarization, and video Q&A.
• Own API performance and reliability, including low‑latency retrieval, pagination, rate limiting, and backwards‑compatible versioning.
• Design schemas and tune queries in Postgres, and integrate with unstructured storage.
• Implement observability across metrics, logs, and traces. Set error budgets and SLOs.
• Write clear design docs and ship high‑quality, well‑tested code.
• Collaborate with ML engineers to integrate and productionize VLMs and retrieval pipelines.
• Take ownership of architecture from inception to production launch.

Who You Are:

• 3+ years of professional experience in backend development.
• Proven experience building and scaling polished WebSocket, gRPC, and REST APIs.
• Exposure to distributed systems and container orchestration (Docker and Kubernetes).
• Hands‑on experience with AWS.
• Strong knowledge of SQL (Postgres) and NoSQL (e.g., Cassandra), including schema design, query optimization, and scaling.
• Familiarity with our stack is a plus, but not mandatory: Python (FastAPI), Celery, Kafka, Postgres, Redis, Weaviate, React.
• Ability to diagnose complex issues, identify root causes, and implement effective fixes.
• Comfortable working in a fast‑paced startup environment.

Nice to have:

• Hands-on work with LLM agents, vector embeddings, or RAG applications.
• Building video streaming pipelines and storage systems at scale (FFmpeg, RTSP, WebRTC).
• Proficiency with modern frontend frameworks (React, TypeScript, Tailwind CSS) and responsive UI design.

Location & Culture

• Full-time, in-office role in Bangalore (we’re building fast and hands-on).
• Must be comfortable with a high-paced environment and collaboration across PST time zones for our US customers and investors.
• Expect startup speed — daily founder syncs, rapid design-to-prototype cycles, and a culture of deep ownership.

Why You’ll Love This Role

• Work on the frontier of video understanding and real-world AI — products that can redefine trust and automation.
• Build core APIs that make video queryable and power real customer use.
• Own systems end to end: performance, reliability, and developer experience.
• Work closely with founders and collaborate in person in Bangalore.
• Competitive salary with meaningful early equity.

About the role:

As a team member at TrusTrace, you’ll get to solve challenging, real-world problems that truly make a difference to society.

As a Product Developer at TrusTrace, you’ll get to solve challenging and real-time problems using cutting edge technologies. You get to work with industry thought leaders and big-name brands. You will work with the product team to materialize the requirements into pieces of user stories and priorities. You will get hands-on experience in polyglot programming to build solutions and write tests to ensure quality code. (We primarily work on Java, typescript/node, and golang). If you build it, you will own it, i.e . you will be generating metrics, track improvements, and bug fixes for features that are built and shipped by you.

Experience & Skills: (3 – 6 Years) The successful candidate will have

• Passion for problem-solving.
• Flexibility to multitask and re-priorities when necessary.
• Ability to work in an agile and customer-eccentric team.
• Open to learning new technologies.
• Prior saas/start-up experience is preferable, but not mandatory.
• Hands-on experience in back-end technologies and have a strong understanding of core data structure and design patterns.
• Commanding knowledge in HLD/LLD
• Basics of system design and distributed systems
• Strong fundamentals in frameworks like Spring MVC, Spring Security, Spring Data, and Spring-boot.
• Sound knowledge in Java and JVM ecosystem.
• Write the production-grade test code. Junit/ TestNG
• Proficiency with Rest API performance and OpenAPI standards.
• Experience in building cache layers and invalidate them properly ;-)
• Strong knowledge of NoSQL(Mongo) database.
• Experience with Elastic search or Solr is preferred.
• Basics understanding of cloud infrastructures (Preferably AWS) and CI/CD pipelines.
• Should have startup/product Experience

Educational Qualification : Preferably from CS/Circuit Background

Title: 

Node Js Developer

Ideal candidates will have 1-3 years of experience  in Node JS and AWS.

Responsibilities: 

• Translate application storyboards and use cases into functional applications
• Design, build and maintain efficient, reusable, and reliable Node JS code
• Ensure the best possible performance, quality, and responsiveness of applications
• Identify bottlenecks and bugs, and devise solutions to these problems, Help maintain code quality, organization, and automation.
• Triage and resolve complex + systemic issues reported on existing production systems
• Communicate effectively with  product owners, and development team members to facilitate understanding of deliverables, estimates, and prioritization
• Contribute to production deployments, including documentation of technical specifications and release notes
• Designs and develops quality software that conforms to department standards and code style
• Writing reusable, testable, and efficient code, create automated test cases following TDD/BDD best practices
• Maintain and enhance existing NodeJS codebase.
• Organize an agile development process that facilitates collaboration, provides transparency, empowers the project team, surfaces and resolves impediments,delivers high-quality software, focuses on delivering business value, and continuously looks to improve.
• Take on a championship role in on-time, high-quality delivery of products through the entire application lifecycle.

What will you work on?

• Architecting clever technical solutions
• Hands-on development using NodeJS and other Javascript frameworks
• Recommend technical frameworks and tech stacks
• Define REST, or GraphQL APIs, document APIs and develop the API handlers
• Design and develop with serverless and scalable systems
• Integrate with 3rd party systems
• Create architectural solution prototypes
• Lead the team, code reviews, and problem-solving

What Makes You A Great Fit?

• 1+ years of software experience with Node JS, Javascript frameworks related to webstack
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Experience with use of serverless functions from AWS
• Experience with architecture of technology systems having hands-on expertise in backend and cloud systems ( AWS, GCP)
• Expertise with NoSQL databases (Mongo, ElasticSearch, Redis) including design of schemas and development for these databases
• Knowledge of DevOps practices and CI/CD pipelines
• Experience in Microservice architecture and development including REST-based APIs.
• Highly collaborative with an affinity for solving complex problems through dialogue with team members.
• Curious, always seeking the whys and hows in order to gain a deeper and more complete understanding of the business and technology.
• Comfortable with ambiguity can begin to explore and solve complex problems when the problem and solution are not well-defined.
• Ability to multitask, switching between various projects/tasks of different natures and complexity with ease
• Knowledge of git based workflows such as gitflow
• Experience with Python in addition to the core knowledge of Node JS is a plus
• Chatbot, Machine Learning, Data Science/Big Data experience will be a plus
• Excellent communication skills, verbal and written

Competencies & Behavior

• Excellent communication and interpersonal skills
• Implement design thinking for different strategieS
• Attention to detail and the ability to work to tight deadlines
• Strong experience in cloud server infrastructure
• Ability to work on complex applications, perform product analysis, development tasks of complex web
• Jumping on a call with clients to understand the requirement and profile them the right solution, helping formulate an effective solution and turning it into a working application
• Conducting website performance and unit tests
• Heavy involvement in the requirements gathering, development and operational stages of new projects
• Troubleshoot and debug related application defects with existing and new applications
• Work collaboratively with the team members and train them as and when required.

.NET C# developer provides custom web application development using the .NET Framework, C#, http://VB.NET">VB.NET, http://ASP.NET">ASP.NET, SQL Server and other advanced components of Microsoft technology and provide training to programmer analysts who support the web services manager' responsibilities.

Responsibilities:

 The tool development also involves working with SQL queries and web front end

Designing, developing, and testing web applications with .Net HTML, CSS and other technologies

Design and development of software applications (primarily web based) used in various areas of the bank (such as Loans processing, Treasury, Middle Office )

Manages the architecture, design, and coding of software for TFI from concept to finished product, in order to answer the needs of the Strategies, Sales, and Trading departments

Consults with end users within the Strategies, Sales, and Trading departments to identify where technology can automate current processes to enhance revenues and cut cost

Maintains currency in technical skills and all relevant fixed income industry sector factors

May lead the work of others and provide ideas which help to enhance TFI software applications

Software design & development principles such as SOLID, Domain-Driven-Design and Object-Oriented Development

ORM frameworks, particularly the Entity Framework

Come be a part of one of the most exciting e-learning startup! A product based company building a B2C subscription product for kids around the world. Best understood as a combination of Netflix + Skillshare + Instagram for kids of ages 5 - 15, there is going to be something new every week to work on!

Already present in over 148 countries, kids of all backgrounds, languages and ages use DIY.org on website, iOS and Android. DIY is a place online where kids truly discover themselves.

We are looking for a Product Engineer - Senior Backend Engineer to join our early stage startup with experience in building B2C products.

If you have experience of working in product based companies (preferably startups), and are looking to build exciting things that children across the world will use - come talk to us!

What you get to do:

• Design and build advanced applications from scratch keeping scalability and performance in mind
• A good handle on both client and server architecture.
• Work on bug fixing and improving application performance.
• Comfortable in owning large scale products and continuously re-evaluating and innovating.

Who are we looking for:

• Experience of 7+ years across product based companies
• Should have worked on building B2C products. Having experience in building edtech products would be a major plus.
• Should be an avid programmer with great problem solving skills.
• Should have a great grasp over NodeJs/Typescript/ AWS microservices/DB design/System Design.
• Should have experience in building scalable server-side systems. Should have significant experience in cloud infrastructure and designing databases.
• Should have knowledge of software architecture, system thinking and design patterns.

• Working knowledge of Node-Sync, callback hell and ways to control asynchronous behavior of Node functions.
• Strong command on ES6(EcmaScript) or Javascript and its concepts like prototypes, call back, closures etc
• Should have deep understanding of Native Node.js, Express.js, HAPI.js and middlewares.
• Candidates must have proper understanding and command on RESTful API development and consumptions.
• Candidates must know to use promises, async-await to control synchronization of business logic components.
• Candidates must have knowledge of JWT, oAuth and passport.js for user authentication.
• Candidates must have knowledge of GIT, Bit-bucket.
• Candidates must have knowledge of application deployment.
• Experience with NoSQL databases eg mongodb (preferred).

• Build large scale enterprise applications.
• Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
• He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams

Responsibilities:

• Strong Technical Chops: You should know how to build highly scalable, robust, and fault-tolerant services that support our unique rate-of-growth requirements.
• You should be on top of the latest architectural trends.
• Fast Learners: We are looking for folks who thrive on new technologies and don't believe in one-size-fit all solutions.
• You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment.

• You understand requirements beyond the written word.
• Whether you're working on an API used by other developers, an internal tool consumed by our operation teams, or a feature used by millions of customers, your attention to details leads to a delightful user experience.

Requirements:

• Strong knowledge of MySQL, NoSQL, PostgreSQL, ElasticSearch.
• Experience in Java and web technologies.
• Experience in any one scripting language like Python.
• Hands-on experience with systems that are asynchronous, RESTful and demand concurrency.
• Knowledge of best software engineering practices for all stages of software development life cycle, including coding standards, code reviews, testing and deployment.