Software 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

Job Description

SAP CAP / Sr. Node.js Developer

This is an opportunity for a hardcore developer who has good experience in working with SAP’s Business Technology Platform, including usage of SAP’s CAP (Cloud Application Programming) model and Node.js.

Company Profile

SPOSEA’s BrightPrice suite of products provides true enterprise-wide control of periodic pricing maintenance, deal review, guidance, and governance.

The software science, algorithms, machine learning, and the best data management practices combined in powerful solutions drive improvements in every stage of the pricing cycle.

Our world-class pricing maintenance and optimization engine allows customers to optimize their pricing models with full transparency and governance, unlocking all pricing-relevant data from any source.

SPOSEA prides itself on always striving to create an environment that helps capitalize on the diversity of our people and the inclusion of ideas and solutions to meet the needs of our increasingly global and diverse customer base.

We actively seek to foster greater levels of diversity in our workforce and in our pipeline of future leaders.

We are always looking for the best and brightest talent and pride ourselves on our individuality — inviting candidates to come as they are and do what they love.

The common thread that attracts us to candidates is their passion for their work and the desire to make an impact in their careers, in the community, and on the world.

The SAP CAP / Node.js Developer Role

You will be responsible for developing CAP / Node.js oriented enhancements for our products, either as part of SPOSEA product development or customer projects.

As part of our Agile development approach, you will report to your respective Scrum Master and make use of the Agile process management tool Azure DevOps.

From SPOSEA’s product development perspective, you will have the opportunity to influence the technical architecture of our products.

Next to this and the below-mentioned main activities, we would be happy to discuss your ambitions and ideas to see how together we can further shape your CAP / Node.js developer role and your ambitions in general.

Key Responsibilities

• Get and maintain a good understanding of our products.
• Keep content in the online Agile process management tool Azure DevOps up to date to increase transparency and efficiency of the team’s work.
• Contribute to stand-up meetings.
• Create estimates based on provided requirements.
• Implement requirements using CAP and Node.js.
• Write technical documentation for implemented requirements.
• Assist during User Acceptance Testing (UAT) and Go-Live.
• Help colleagues where needed and contribute to continuous knowledge building and sharing.

Location

Bangalore, India

• Remote for now
• Hybrid in the future

Your Profile

We are seeking someone with full software development lifecycle experience on SAP Business Technology Platform, making use of CAP and Node.js.

Requirements

• Minimum 8+ years of hands-on development experience with CAP and Node.js.
• Proven skills in building scalable web applications / cloud services using modern web technologies (jQuery, Server-Side JS, REST, OData).
• Clear understanding of SAP Business Technology Platform (Cloud Foundry) and available platform services.
• Solid knowledge of microservices architecture and service mesh, with the ability to design and develop microservices-based applications.
• Understanding of containerization and orchestration technologies like Docker and Kubernetes is a plus.
• Experience with Java, Python, or SQL usage in applications (especially with SAP HANA) is a plus.
• Knowledge of SAP systems functionality, SAP Fiori UX principles, or GraphQL is a plus.
• Entrepreneurial and problem-solving mindset.
• DevOps mindset with a strong sense of ownership through the deployment lifecycle and Agile product development.
• Experience working with AI tools for accelerated development.

Education Level

You preferably have a degree (Bachelor’s / Master’s / Diploma) in Business, IT, or Engineering.

However, at SPOSEA, we equally value innovation and practical capability. Our culture is driven by talent and passion rather than titles or seniority.

We Offer

We offer a work environment full of innovative technologies, used to continuously develop our advanced SAP BTP CAP-based products.

You will have the opportunity to:

• Contribute to the rapid growth of the company
• Further develop your career
• Collaborate with highly experienced professionals

Along with this, we provide a competitive employment package and overall benefits.

• Previous working experience as a MEAN Stack Developer for 1+ years
• BSc degree in Computer Science or similar relevant field 
• In-depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 1 or React
• Experience creating front end applications using HTML5, Angular, LESS/SASS
• Hands-on experience with JavaScript Development on both client and server-side
• Experience with modern frameworks and design patterns, minimum one-year experience with MEAN Fullstack paradigm
• Knowledge of the following will be considered as an advantage:
• Consumer Web Development Experience for High-Traffic, Public Facing web applications
• Experience with cloud technologies also a plus
• Creating secure RESTful-based web services in XML and JSON, Javascript, JQuery
• Continuous integration (Jenkins/Hudson) and version control (SVN, Git).

About us :

Infosec Ventures incubates and scales cyber security innovators that solve for inefficiencies in cyber security, solve big problems and deliver exceptionally high return on investment for customers. We are on a mission to make the world cyber safe, by protecting systems and the 'human operating system'. Some notable current ventures include humanfirewall.io, emailauth.io, bugsbounty.com, securityrating.com among others. An idea is worth one dollar, it's the execution that adds the zeros at the end of it, to make it a billion dollars!

Job Description :

If you are a software developer, and have hands-on experience with

- Laravel and/or NodeJS

- Angular JS, VUE JS

- Mongo, MySQL

- You have built SaaS products

Roles :

- The person is responsible coding, designing and modifying web applications, from layout to -function and according to a product's specifications.

- Strive to create visually appealing applications that feature user-friendly design and clear navigation.

- Deep expertise and hands on experience with Web Applications and programming languages such as Laravel framework, Laravel 5 Framework, PHP 7, MySQL, HTML, CSS, JavaScript,

- JQuery, Angular JS, Node JS and REST APIs.

Have an experience building backend server side applications in Node.js and Express.js

Have in-depth knowledge and experience of using ES6+ features and Object Oriented Principles

Have sound knowledge and are familiar with databases like MongoDb - (Preferred) and Mysql.

Have good exposure to cloud native technologies (AWS Lambda, S3, RDS, etc) 

Have working knowledge of version control (Git) and continuous deployment 

Have experience in optimising backend API’s and database queries for optimal performance.

You are good at problem solving and have analytical skills 

You are flexible in adapting new technologies and frameworks as per the projects needs

Must haves 

• At least 3 years of professional programming experience in Ruby on Rails.
• Solid fundamentals with software development, systems, troubleshooting, and teamwork
• Strong testing habits, passionate towards unit testing and TDD. 
• Good understanding of RDBMS like MySQL, PostgreSQL 
• Strong knowledge of git 
• Good understanding of data structures 
• Strong analytical and problem-solving skills 

Good to have 

• Experience with Javascript

• 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

Sr. Backend Developer | Disruptive HR Tech Platform | GGN

What you need to have:

Experience: 4 to 7 years