Backend Developer

Job Title : Senior Backend Developer (Node.js + AWS + MongoDB)

Experience : 4+ Years

Location : Andheri, Mumbai (Work From Office)

About the Role :

We are looking for a highly skilled Senior Backend Developer with strong expertise in Node.js (NestJS), AWS, and MongoDB to join our growing engineering team.

This role requires someone who takes ownership, is proactive, and enjoys building scalable, high-performance backend systems in a fast-paced environment.

Key Responsibilities :

• Architect, design, and develop scalable backend services using Node.js (NestJS).
• Design and manage cloud infrastructure on AWS Services (EC2, ECS, RDS, Lambda, etc.).
• Develop and maintain high-performance database solutions using MongoDB.
• Work with Kafka, Docker, and serverless frameworks (SST) for efficient deployments.
• Optimize system performance, scalability, and reliability across services.
• Ensure application security, best practices, and compliance standards.
• Collaborate with cross-functional teams to deliver robust product features.
• Take end-to-end ownership of features from design to deployment.

Technical Requirements :

• 4+ years of backend development experience.
• 3+ years of hands-on experience with Node.js.
• 2+ years of hands-on experience with AWS.
• Strong experience with NestJS framework.
• Solid experience with MongoDB and database design.
• Experience with Kafka, Docker, and serverless architecture.
• Understanding of system design, scalability, and performance optimization.

Good to Have (Bonus Skills) :

• Experience with Python or other backend languages.
• Exposure to Agentic AI use cases or implementations.
• Strong understanding of security best practices.

What We’re Looking For :

• Curious mindset and eagerness to learn new technologies.
• Proactive problem solver with strong ownership attitude.
• Strong team player with effective communication skills.
• Positive, energetic, and passionate about building great systems.

Backend Developer

📍 Noida | 🕐 Full-Time | 🧭 Experience: 2–3 Years

The Mission

We aren't building traditional backend systems — 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 — 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 — ensuring high performance, scalability, and reliability at every layer.

The Pillars of Impact

🚀 1. Core Backend & System Architecture (50%)

• Build and scale high-performance backend services and APIs
• Design efficient database schemas, query optimization, and data flows
• Write clean, logical, production-grade code (Python, Golang, or similar)
• Own system performance — latency, throughput, and reliability

⚙️ 2. Backend for AI Systems (30%)

• Develop backend systems supporting AI agents and autonomous workflows
• Handle large-scale data processing, async tasks, and event-driven systems
• Integrate backend infrastructure seamlessly with AI/ML components

🧠 3. Scalability & Distributed Systems (20%)

• Contribute to microservices architecture and service decomposition
• Build fault-tolerant, highly available distributed systems
• Optimize systems for 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 Experience2–3 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 · Screening for the Top 1%

RoundsRound I · Recruiter ScreenEvaluation of backend experience, problem-solving approach, and project depthRound II · Hiring ManagerDeep dive into backend projects, APIs, databases, and system design thinkingRound III · Domain LeadLive coding + backend problem-solving + discussion on scalability and distributed systemsFinal · LeadershipCulture fit, ownership mindset, and ability to operate in a high-velocity startup environment

Your Growth Trajectory 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: 100% premium covered insurance for you + family (spouse, kids, parents) with annual check-ups.
• Fuel for Innovation: Fresh, daily gourmet lunch and dinner served at our Noida HQ.
• Seamless Transit: Safe, GPS-enabled cab facilities for eligible shifts (home-office-home).
• POD Culture: Dedicated quarterly budgets for team-building, offsites, and collaborative celebrations.

We seek a highly skilled and experienced Ruby on Rails Development Team Lead/Architect to join our dynamic team at Uphance. The ideal candidate will have proven expertise in leading and architecting RoR projects, focusing on building scalable, high-quality applications. This role requires a combination of technical leadership, mentorship, and a strong commitment to best practices in software development.

Job Type: Contract/Remote/Full-Time/Long-term

Responsibilities:

• Develop and maintain high-quality Ruby on Rails applications that meet our high-quality standards.
• Design, build, and maintain efficient, reusable, and reliable Ruby code.
• Utilise your expertise in Ruby on Rails to enhance the performance and reliability of our platform.
• Set the technical direction for the existing RoR project, including system architecture and technology stack decisions.
• Guide and mentor team members to enhance their technical skills and understanding of RoR best practices.
• Conduct code reviews to maintain high coding standards and ensure adherence to best practices.
• Optimise application performance, focusing on ActiveRecord queries and overall architecture.
• Tackle complex technical challenges and provide efficient solutions, particularly when specifications are unclear or incomplete.
• Establish and enforce testing protocols; write and guide the team in writing effective tests.
• Define and ensure consistent adherence to best practices, particularly in the context of large applications.
• Manage the development process using Agile methodologies, possibly acting as a Scrum Master if required.
• Work closely with product managers, designers, and other stakeholders to meet project requirements and timelines.

Technical Requirements and Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field
• Proven experience with Ruby on Rails, MySQL, HTML, and JavaScript (6+ years)
• Extensive experience with Ruby on Rails and familiarity with its best practices
• Proven track record of technical leadership and team management
• Strong problem-solving skills and the ability to address issues with incomplete specifications
• Proficiency in performance optimisation and software testing
• Experience with Agile development and Scrum practices
• Excellent mentoring and communication skills
• Experience with large-scale application development
• Application performance monitoring/tuning

General Requirements:

• Availability to work during the IST working hours.
• High-speed Internet and the ability to join technical video meetings during business hours.
• Strong analytical and problem-solving skills and ability to work as part of multi-functional teams.
• Ability to collaborate and be a team player.

Why Uphance?

• Engage in Innovative Projects: Immerse yourself in cutting-edge projects that not only test your skills but also encourage the exploration of new design realms.
• AI-Integrated Challenges: Take on projects infused with AI, pushing the boundaries of your abilities and allowing for exploration in uncharted territories of software design and development.
• Flexible Work Environment: Whether you embrace the digital nomad lifestyle or prefer the comfort of your own space, Uphance provides the freedom to design and create from any corner of the globe.
• Inclusive Team Environment: Join a dynamic, international, and inclusive team that values and celebrates diverse ideas.
• Collaborative Team Dynamics: Become a part of a supportive and motivated team that shares in the celebration of collective successes.
• Recognition and Appreciation: Your accomplishments will be acknowledged and applauded regularly in our Recognition Rally.

Compensation:

Salary Range: INR 24 LPA to INR 32 LPA (Salary is not a constraint for the right candidate)

At Uphance, we value innovation, collaboration, and continuous learning. As part of our team, you'll have the opportunity to lead a group of talented RoR developers, contribute to exciting projects, and play a key role in our company's success. If you are passionate about Ruby on Rails and thrive in a leadership role, we would love to hear from you. Apply today and follow us on LinkedIn - https://www.linkedin.com/company/uphance !

Job DescriptionWe are seeking an experienced HubSpot CRM Developer to join our team. The ideal candidate will have a strong background in HubSpot development, integrations, and dashboard creation while working with cross-functional teams to optimize CRM functionality.

Key Responsibilities:●    Develop, customize, and optimize HubSpot CRM to meet business needs.

●    Integrate HubSpot with other technologies and external business intelligence tools like Power BI and Tableau.

●    Build and maintain dashboards and reports to support marketing, sales, operations, and finance teams.

●    Work with backend technologies (PHP, Python, Node.js, etc.) to implement integrations and automation.

●    High proficiency in JavaScript.

●    Develop and maintain scripts in any suitable scripting language to support CRM functionality.

●    Ensure seamless data flow and synchronization between HubSpot and external platforms.

●    Collaborate with multiple teams to understand data requirements and optimize CRM processes.

Requirements:●     7-10 years of relevant experience in HubSpot development and integration.

●    Strong expertise in backend development using any  PHP, Python, or Node.js.

●    High proficiency in JavaScript and any scripting languages.

●    Experience in HubSpot API integration with other platforms.

●    Proficiency in dashboard and reporting tools like Power BI and Tableau.

●    Ability to work independently (IC role) while collaborating with cross-functional teams.

●    Must have experience in handling end-to-end projects from scratch.

●    Exposure to multiple industries/domains is preferred (not limited to a single company for 5-10 years).

The tech stack looks like the below (expect this to change as we scale):

1. Typescript for APIs (REST and GraphQL)
2. Kafka, Spark, and data warehouses for ML pipelines (spark on python/scala)
3. Solidity + hardhat for smart contracts (in the future, rust, go and move)
4. AWS & Terraform
5. Full nodes

You can expect to do some or all of the following:

1. Read through protocols’ whitepapers and smart contracts to derive metrics and analyze risks
2. Architect the backend for APIs, async jobs, and blockchain integration
3. Build clean, concise APIs for customer integration, along with the documentation
4. Setup, run and maintain full and archive nodes across different chains
5. Integrate with multiple partners like exchanges and custody providers
6. Fool-proof security across the stack - encryption, hashing, privacy, VPC, etc.
7. Infrastructure as code - build terraform scripts and ensure easy replication of the infra across different regions
8. Research the top DeFi protocols to uncover better insights for our customers and evaluate their risk profiles, security, and historical returns
9. Manage production deployments, logging, and monitoring

We expect you to be fairly comfortable with working with both web3 and web2 stacks. We do not expect that you have web3 experience on day 1, but you should be willing to wear multiple hats, learn things quickly and move fast.

1. Generalist, a solid engineer who can learn things on your own and have an eye for clean, tested, and well-documented code
2. We don’t look at the number of years of work experience as a criterion, but rather see what you have done in your life so far (side projects, open-source contributions, blogs, etc.). We don’t care about degrees, the institutions you went to, or the companies you worked for before. We are open to talking as long as you have good judgment, great clarity, align with our values and have a strong track record of thoughtful work
3. Understand the fundamentals of building and integrating APIs and secure systems. Bonus if you know a bit about blockchains and protocols
4. You can be strong on the backend, front-end, or can dabble everywhere. We want you to play to your strengths and will provide enough opportunities to learn and do things outside of your comfort zone

Pay and benefits We offer a solid, competitive package (including early-stage equity) that is location agnostic. We give you the flexibility to choose the split between cash and equity.

• Strong proficiency with JavaScript 
• Knowledge of Node.js and frameworks available for it 
• A good understanding of the nature of asynchronous programming, its challenges, and workarounds
• Good understanding of server-side templating languages 
• Good understanding of server-side CSS preprocessors 
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Understanding of accessibility and security compliance 
• Experience in user authentication and authorization between multiple systems, servers, and environments
• Proficiency in API integrations
• Understanding of fundamental design and architecture principles to scale an application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• A degree in any discipline
• Good communication and team skills
• Ability to listen to the requirements of team members and clients and translate them into great solutions

• 4+ years Rails experience in a production environment working complex Ruby on Rails applications and Ruby gems
• Proficient understanding of code versioning tools
• Knack for writing clean, readable Ruby code
• Knowledge on HTTP and RESTFUL API development experience
• Experience in Angular is a plus
• Proactiveness, good communication and fast learning.