
Backend Developer
š Noida | š Full-Time | š§ Experience: 2ā3 Years
The Mission
We aren't building traditional backend systems ā we're powering the infrastructure behind Agentic Intelligence. TestMu AI is building the world's first AI-native platform where backend systems don't just serve requests, they enable autonomous decision-making, execution, and scale.
The name "TestMu" comes from our community conference. Our users and team aren't an audience ā they're the heartbeat of what we build. We believe AI augments human potential. It doesn't replace it.
You'll be building the core backend systems that power AI-driven workflows ā ensuring high performance, scalability, and reliability at every layer.
The Pillars of Impact
š 1. Core Backend & System Architecture (50%)
- Build and scaleĀ high-performance backend services and APIs
- Design efficientĀ database schemas, query optimization, and data flows
- Write clean, logical, production-grade code (Python, Golang, or similar)
- Own system performance ā latency, throughput, and reliability
āļø 2. Backend for AI Systems (30%)
- Develop backend systems supportingĀ AI agents and autonomous workflows
- HandleĀ large-scale data processing, async tasks, and event-driven systems
- Integrate backend infrastructure seamlessly with AI/ML components
š§ 3. Scalability & Distributed Systems (20%)
- Contribute toĀ microservices architecture and service decomposition
- BuildĀ fault-tolerant, highly available distributed systems
- Optimize systems forĀ high concurrency and real-time execution
Your Engineering Stack
Tech/ToolsPython / GolangBuilding core backend services and logic-heavy systemsAWS / GCPDeploying and scaling distributed backend infrastructureKafka / RabbitMQHandling asynchronous processing and event-driven workflows
The Bar
SignalCore Backend Experience2ā3 years of hands-on experience building APIs, backend systems, and scalable servicesProblem-Solving AbilityStrong fundamentals in data structures, algorithms, and logical thinkingSystem Design UnderstandingAbility to design scalable backend systems with clear architectural thinkingOwnership & ExecutionExperience owning backend features end-to-end in a fast-paced environment
The Interview Loop Ā· Screening for the Top 1%
RoundsRound I Ā· Recruiter ScreenEvaluation of backend experience, problem-solving approach, and project depthRound II Ā· Hiring ManagerDeep dive into backend projects, APIs, databases, and system design thinkingRound III Ā· Domain LeadLive coding + backend problem-solving + discussion on scalability and distributed systemsFinal Ā· LeadershipCulture fit, ownership mindset, and ability to operate in a high-velocity startup environment
Your Growth TrajectoryĀ TestMu AI is a high-growth environment where we promote based on complexity solved, not years of tenure. As a Backend Developer, you have a massive runway to scale from an Individual Contributor (IC) into a core Engineering Leadership role, working alongside pioneers in agentic intelligence.
Perks of the Future
- Health & Wellness:Ā 100% premium covered insurance for you + family (spouse, kids, parents) with annual check-ups.
- Fuel for Innovation:Ā Fresh, daily gourmet lunch and dinner served at our Noida HQ.
- Seamless Transit:Ā Safe, GPS-enabled cab facilities for eligible shifts (home-office-home).
- POD Culture:Ā Dedicated quarterly budgets for team-building, offsites, and collaborative celebrations.

About TestMu AI (Formely LambdaTest)
About
TestMu AI (formerly LambdaTest) is the worldās first full-stack Agentic AI Quality Engineering Platform.
We built TestMu AI for a reality where software is written by AI and must be shipped at machine speed.
Tech stack
Connect with the team
Similar jobs
We're Hiring: Golang Developer (3ā5 Years Experience)
Location: Mumbai
Ā
We are looking for a skilled Golang Developer with strong experience in backend development, microservices, and system-level programming. In this role, you will work on high-performance trading systems, low-latency architecture, and scalable backend solutions.
Ā
Key Responsibilities
⢠Develop and maintain backend services using Golang
⢠Build scalable, secure, and high-performance microservices
⢠Work with REST APIs, WebSockets, message queues, and distributed systems
⢠Collaborate with DevOps, frontend, and product teams for smooth project delivery
⢠Optimize performance, troubleshoot issues, and ensure system stability
Ā
Skills & Experience Required
⢠3ā5 years of experience in Golang development
⢠Strong understanding of data structures, concurrency, and networking
⢠Hands-on experience with MySQL / Redis / Kafka or similar technologies
⢠Good understanding of microservices architecture, APIs, and cloud environments
⢠Experience in fintech/trading systems is an added advantage
⢠Immediate joiners or candidates with up to 30 days notice period preferred
Ā
If you are passionate about backend engineering and want to build fast, scalable trading systems
Job Description: Python Engineer
Role Summary
We are looking for a talented Python EngineerĀ to design, develop, and maintain high-quality backend applications and automation solutions. The ideal candidate should have strong programming skills, familiarity with modern development practices, and the ability to work in a fast-paced, collaborative environment.
Key Responsibilities:
Python Development & Automation
- Design, develop, and maintain Python scripts, tools, and automation frameworks.
- Build automation for operational tasks such as deployment, monitoring, system checks, and maintenance.
- Write clean, modular, and well-documented Python code following best practices.
- Develop APIs, CLI tools, or microservices when required.
Linux Systems Engineering
- Manage, configure, and troubleshoot Linux environmentsĀ (RHEL, CentOS, Ubuntu).
- Perform system performance tuning, log analysis, and root-cause diagnostics.
- Work with system services, processes, networking, file systems, and security controls.
- Implement shell scripting (bash) alongside Python for system-level automation.
CI/CD & Infrastructure Support
- Support integration of Python automation into CI/CD pipelinesĀ (Jenkins).
- Participate in build and release processes for infrastructure components.
- Ensure automation aligns with established infrastructure standards and governance.
- Use Bash scripting together with Python to improve automation efficiency.
Cloud & DevOps CollaborationĀ (if applicable)
- Collaborate with Cloud/DevOps engineers on automation for AWS or other cloud platforms.
- Integrate Python tools with configuration management tools such as Chef or Ansible, or with Terraform modules.
- Contribute toĀ containerization effortsĀ (Docker, Kubernetes) leveraging Python automation.
ā Learning new things, asking questions
ā Analyzing user feedback with the team to learn on what to build
ā Iterating on feedback to continuously improve features
ā Building APIs and microservices for a system that can scale to millions of emails per
month
ā Working closely with our product designers and frontend developers to provide a
delightful user experience
ā TDD to make sure all features work as intended
Qualifications:
ā B.Sc. in Computer Science or a related field, or equivalent experience
ā 2+ years experience working as a software engineer
ā Proficiency in Ruby / Rails or equivalent web development language/framework
ā Strong in SQL and relational database such as PostgreSQL
We're looking for an experiencedĀ Backend Engineer InternsĀ to join our growing team of engineers to help build and maintain our products. You should have prior internship experience as Backend intern using PythonDjango
Requirements/Skills
- At least prior internship experience -on Backend development experience especially in Python & Django stack is must
- Prior experience in tech and product startups ā.
- Good communication skills
- Minimum 60% aggregate marks (Passed out year - 2022 & 2023)
- Sound knowledge on Python programming language and must have completed projects using the Python
Internship Details :
- Full-time Paid Internship(15,000-35,000)
- Internship duration: 3-6 months
- Based on their performance during the internship, there may be a Full-time opportunity available for them to join our team
Join our growing team and work with some of the best backend engineers. Work on interesting and complex challenges in a fast paced development environment
- Elocity is a cleantech start-up striving to make the world a better place through technology innovations. We are building a global infrastructure for making the transition to electric vehicles viable, affordable, and sustainable by working closely with the utilities, governments, and public.Ā Ā
- Ā
- Headquartered out of Canada, we are a team of highly specialized domain experts and problem solvers enabling utilities, public and private sector entities to successfully manage the demands of electric vehicle charging and its infrastructure needs to pave the way for electromobility in future.Ā Ā
- To know more visit https://elocitytech.com/" target="_blank">https://elocitytech.com/Ā
- Responsibilities:Ā Ā
- Determines technical feasibility of features or solutions by evaluating problem, customer requirements, possible solutions and technology requirements.Ā Ā
- Exercises judgement in prioritizing tasks and selecting methods and techniques for obtaining solutions.Ā Ā
- Create low-level design of modules of a software application through proper documentation and diagrams.Ā Ā
- Develops software solutions by studying requirements, clarifying customer/user needs, analysing data and processes and following established software development practices and processes.Ā Ā
- Develops proof of concepts for technical evaluation and early customer feedbackĀ Ā
- Updates and shares knowledge by studying state-of-the-art development tools, programming techniques, and computing technology; reading professional publicationsĀ Ā
- Networks with internal and external personnel in own area of expertise.Ā Ā
Skills:Ā Ā
- Good command in JavaScript/TypeScript. Knowledge of Java/Python will be a plus.Ā Ā
- Experience in Debugging/troubleshooting TypeScript code.Ā Ā
- Experience in API development (REST/GraphQL etc)Ā Ā
- Experience in development of Web and Mobile(android/iOS) applicationsĀ Ā
- Exposure of Parallel and Asynchronous programmingĀ Ā
- Experience in writing Unit tests (Jest or any similar framework)Ā Ā
- Should be proficient in relational Database concepts (Postgres etc.)Ā Ā
- Knowledge of Non-relational Databases would be a plus.Ā Ā
- Good Understanding of Object-Oriented Programming Concepts.Ā Ā
- Good Understanding of Design Patterns.Ā Ā
- Good command of Data structures, Algorithms and Complexity.Ā Ā
- Good at problem solving and analytical skills.Ā Ā
- Experience with Source Code Versioning systems (Git etc)Ā Ā
- Understanding of Micro services Architecture would be a plus has context menu
- Back-end development using Python/Django
- Front-end development using CSS, HTML and JS
- Write reusable, testable, and efficient code
- Implement security and data protection
- Use Amazon Relational Database Service
- Commit, push, pull and sync to Bitbucket, GitLab
- Deployment of code on MS Azure and AWS
- Build efficient scripts and cron jobs in GCP
- Connect apps and automate workflows using Integromat
- 3+ years of Professional Full time experience building and maintaining complex software on a cross-functional team. You'll join us in writing clean, maintainable software that solves hard problems. You'll write testable, quality code. You'll push the team and the mission forward with your contributions.
- Python and Django
- Strong database skills
- Basic systems administration
- Bachelors or Masters in Computer Science Engineering (or equivalent)
- Minimum product dev experience of 3+ years in web/mobile startups with expertise in designing and implementing high performance web applications.
- You're an incessant problem solver and tougher the problem gets, more fun you have.
- You love to own end to end responsibility, starting from defining the problem statement (either yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then production env and finally monitoring.
- Sound working knowledge of HTML, CSS and JS is an add-on
- Technical know-how of MS Azure, AWS and GCP are desirable
- Understand and keep the technical documentation up-to-date on Confluence
- Collaborate work using bug tracking and project management tools like Jira, Redmine
Senior Developer
NOTE- we are looking for those who can join immediately or within 15-20 days of notice period.
Senior Dev with 5 years relevant experience
1. Working experience on web development using Python/Django
2. Comfortable with using Django framework.
3. Understanding of web servers
4. Knowledge in PostgreSQL, MySQL, and other database queries
5. Experience in using Redis cache.
6. Understanding of web technologies
7. Experience in REST API development using Django.
8. Strong hold on Apache
9. Integration of data storage solutions
10. Able to integrate multiple data sources and databases into one system
11. Understanding of JavaScript, and front-end JS frameworks like VueJS, React JS and Angular JS
12. Good communication skill
13. .net/.NET core will be an added advantage










