Backend Developer

Senior Backend Engineer

Node.js, System Design & Production Platforms

📍 Mumbai (On-site) | Full-time | 5+ years

About the Role:

Unico Connect is an AI-first technology partner that builds custom mobile, web, and AI products for clients across multiple geographies.

We are hiring a Senior Backend Engineer to own the backend architecture of a complex production AI platform on a dedicated client engagement: API design and data modelling, multi-tenancy, orchestration of long-running agent workloads, and the services that manage user projects and generated output.

We are open to full stack engineers whose primary strength and interest is backend. If you have shipped full stack work but the backend is where you do your deepest engineering, you are a fit for this role.

The mandatory requirement for this role is hands-on production experience as a senior backend engineer building complex, scalable systems in Node.js, with end-to-end ownership of architecture, data, and operations on at least one live platform.

The role is hands-on and architectural.

Expect to design system architecture, lead a small group of backend engineers, build the hardest parts yourself, set engineering standards, and partner closely with frontend, AI, and DevOps engineers.

A typical week includes an architecture decision on a new service, hands-on implementation of a critical path, a code review with mid-level engineers, and a working session with the AI engineer on an integration contract.

Responsibilities:

System Architecture

Own the backend architecture across engagements.

Make and document decisions on service boundaries, data models, API contracts, deployment topology, and trade-offs.

Hands-on Backend Delivery

Lead by example on complex modules, performance-critical paths, and high-risk areas using Node.js (Express, NestJS, Fastify) with TypeScript.

Pick up Python (FastAPI) where engagements require it.

Database Design and Performance

Drive PostgreSQL schema design, indexing, query optimisation, migrations, and capacity planning.

Set the data-modelling standard across the pod.

Caching, Queues, and Workflows

Design caching (Redis), event-driven patterns (Kafka, RabbitMQ, SQS, NATS), and long-running workflow orchestration (Temporal, BullMQ, Celery, or equivalent).

Handle retries, idempotency, and failure recovery.

Multi-Tenancy and Platform Patterns

Design and implement multi-tenant data isolation, RBAC, audit logging, and resource quotas appropriate to enterprise-grade products.

API and Integration Design

Set the standard for REST, GraphQL, and gRPC contracts.

Drive versioning, authentication (OAuth, JWT, SSO), security by default, and developer ergonomics.

Observability and Operations

Instrument services with OpenTelemetry, Prometheus, and Grafana.

Define SLOs, lead incident response, and write postmortems.

Code Quality and Mentorship

Run code reviews, define conventions, mentor mid-level engineers, and raise the engineering bar.

AI-Assisted Engineering Discipline

Use Claude, Cursor, and similar tools day to day.

Set the team standard for prompts, patterns, AI-assisted review, and validation of AI-generated backend code.

Client Engagement

Represent Unico Connect in technical conversations with customers.

Defend architectural decisions, communicate trade-offs, and manage scope.

Requirements:

Hands-on Production Experience as a Senior or Lead Backend Engineer in Node.js (Mandatory)

Must have personally built and shipped complex production systems in Node.js, owning architecture, data, and operations on at least one live engagement.

Full stack engineers whose deepest work is on the backend qualify.

POCs and internal tools alone do not qualify.

5+ Years of Professional Backend Engineering Experience

With at least 1 to 2 years in a senior or lead role with direct responsibility for technical decisions and team output.

Deep Node.js and TypeScript Proficiency

Strong with Express, NestJS, or Fastify.

Comfort with async patterns, streams, worker threads, and performance profiling.

Python as a Strong Plus

Hands-on production experience with FastAPI, Django, or Flask is a meaningful advantage.

Willingness and demonstrated ability to pick up Python as engagements demand is required.

PostgreSQL Depth

Schema design, normalisation, indexing, query performance, migrations, and at least one production system where you owned the data model end to end.

Caching and Event-Driven Architecture

Hands-on with Redis (or equivalent) and message queues or event-driven patterns (RabbitMQ, SQS, Kafka, NATS).

AWS Depth

Hands-on production experience with EC2, S3, RDS, IAM, VPC, ECR, and at least one of EKS, ECS, or Lambda.

Comfort owning deployment, monitoring, and cost.

System Design and End-to-End Ownership

Able to take an ambiguous problem, break it into components, evaluate alternatives, produce an architecture that holds up under review and load, plan execution, and ship with limited supervision.

AI-Assisted Engineering Experience

Daily use of Claude, Cursor, Copilot, or equivalent.

Strong discipline for reviewing and validating AI-generated backend code.

Excellent Written and Spoken English

Experience working directly with international clients.

Confident defending architectural choices in writing and in review.

Nice to Have:

• Workflow orchestration (Temporal, Airflow)
• GraphQL (Apollo, gRPC)
• Sandboxed execution environments
• Multi-tenant SaaS experience
• OpenTelemetry instrumentation
• Prior agency or consulting experience

Backend Developers

• Contract To Hire (Initial Engagement: 6 months)

Experience: 5+ years

Mandatory Skills:

● Node.js

● Python

● MongoDB

● PostgreSQL

● REST API design and development

● Backend architecture and service design

● Database design, indexing and query optimisation

● Performance tuning

● Authentication/authorisation

● Third-party integrations

● Asynchronous processing and background jobs

● Logging, monitoring and debugging

● Git and collaborative development

● Scalable, maintainable and testable backend services

● Architecture discussions, code reviews, debugging and production support

Good to have:

● Microservices

● Docker

● Cloud platforms

● Redis

● Message queues

● CI/CD

● Observability

Key Technical Requirements

• Strong hands-on experience in Java
• Strong Java coding/programming skills
• Strong experience with Hibernate
• Strong experience in REST APIs

Mandatory Domain Experience

Candidates must have experience in the Financial Services, Banking, or Payments domain.

Screening Guidelines

• Look for candidates based in Pune only, as the 2nd/final round will be mandatory F2F.
• Prioritize Immediate Joiners or candidates currently serving their notice period.
• Candidates should demonstrate strong hands-on Java coding along with solid Hibernate and REST API experience.
• Immediate Joiners: We can plan their interview rounds during this week itself, if required.

About the company

SuperHuman Race is a technology start-up that offers measurement of 360 ̊ sustainability,

ESG and CSR automation, alignment with compliance requirements, and experiential

employee engagement. Our product is a category-creating technology implementation that

automates program management, compliance, and reporting including automated

reporting for international frameworks like GRI, GRESB, DJSI, CDP, etc.

We use data analytics, behavioral dynamics, good gaming, and impact blockchain to deliver

social purpose to companies while fulfilling their compliance requirements. This approach

has a demonstrated 4X return on profitability and generates tremendous Earned PR and

brand equity for corporates. Over 30% of our growing global clientele comprises Fortune

500 companies.

Our founding team brings 50+ years of leadership experience with Fortune 500 companies

in India & North America. Along with this, our high-performing diverse teams combine

experiences from more than 20 countries and a wide range of industries and disciplines

including aerospace, real estate, banking, social impact implementation, advanced

technology, manufacturing, sustainability, advertising, etc. Our work, as well as our

business practices, have been recognized as game-changing best practices by the United

Nations, the Commonwealth, NITI Aayog, Ministry of Earth Sciences (Government of India),

TERI, etc.!

We are an equal-opportunity employer - more than 50% of our business and technical

leadership roles are held by women.

We are looking for a PHP Developer responsible for managing back-end services and

the interchange of data between the server and the users. Your primary focus will be

the development of all server-side logic, definition, and maintenance of the central

database, and ensuring high performance and responsiveness to requests from the

front-end. You will also be responsible for integrating the front-end elements built by

your co-workers into the application. Therefore, a basic understanding of front-end

technologies is necessary as well.

Responsibilities

● 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

Skills And Qualifications

● Strong knowledge of Core PHP

● Understanding the fully synchronous behavior of PHP

● Understanding of MVC design patterns

● Intermediate to Advanced knowledge of MySQL, JavaScript, and AJAX

● Basic understanding of technologies such as HTML5, React.js, Node.js, and CSS3

● Knowledge of object-oriented PHP programming

● Evolved Understanding of 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 the limitations of PHP as a platform and its workarounds

● Creating database schemas that represent and support business processes

● Proficient understanding of code versioning tools, such as Git

The Ideal Candidate will have:

● A graduate or postgraduate degree in Computer Science or IT Engineering

● 2+ years of work experience developing commercially successful web products

● Experience with analytics and process automation

● Attention to detail and a disciplined mind

● Extraordinary analytical and logical prowess

● Common Sense and Curiosity

EQUAL OPPORTUNITY EMPLOYER :

The SuperHuman Race is an equal opportunity employer and we highly value transparency.

Everything that matters in our decision-making process regarding this position is clearly

outlined in this job description

Key Responsibilities :

1. Work closely with client and team and understanding the requirement, design, analyze and do the code changes

2.Helping team and client to resolve issues

3.Should able to handle day to day activity like team management, daily meeting

Technical Experience :

- Net development work experience

- Proficiency in NET Development with Net Core.

- Strong object-oriented programming OOPS design skills, SOLID principles and proficiency in software design patterns

- Experience in database MS SQL Server, No SQL

- Solid understanding of Microservices

- Good understanding Azure, Docker and Kubernetes

- Experience with version control systems GitHub and Bitbucket

Professional Attributes :

1.Should have good communication Skills

2.Should be good team player

3.Should be able to work independently and under pressure

4.Should have good logical and analytical thinking

We are looking for a can do it attitude, and the ability to deliver with high velocity and high-quality at the same time. You must have experience developing and designing amazing UI screens. 

This person MUST have: 

- BE Computer Science, MCA or equivalent 

- Cloud app development experience 

- Strong ReactJS experience 

- Strong experience in Next JS and Typescript 

- Understanding of APIs, pagination, searching, sorting 

- Creating high performance UI etc. 

- Troubleshooting/debugging experience 

- Experience with SQL and NOSQL databases 

- Strong communication skills 

Experience: 

- Min 3 year experience 

- Not more than 7 year experience. 

- Startup experience is a must. 

Location 

• Remotely, anywhere in India

Timings: 

- 40 hours a week but with 4 hours a day overlapping with client timezone. Typically clients are in California PST Timezone. 

Position: 

- Full time/Direct 

- We have great benefits such as PF, medical insurance, 12 annual company holidays, 12 PTO leaves per year, annual increments, Diwali bonus, spot bonuses and other incentives etc. 

- We dont believe in locking in people with large notice periods. You will stay here because you love the company. We have only a 15 days notice period.