
● Building and maintaining micro services.
● Develop new features and improve existing features of the application.
● Coding, Implementing, Unit Testing and Documenting Typescript and Javascript based services.
● Design, build, and maintain efficient, reusable, and reliable code.
● Code reviews and ensuring adherence to software development standards.
● Contribute to team and organizational improvements in process and infrastructure.
● Participating in requirements gathering and functional specification activities.
● Resolving and helping to mitigate production issues.
What you need to be successful
● Has proven himself as a solid individual contributor and has some initial management ability
● Understands the culture and upholds it
● Well respected with the team
● Looking to grow more as a manager than as an engineer
● Split time b/w hands-on technical work and people management of a small team
● Be a role model for the people in your team
● Responsible for team mentorship, technical planning, resource allocation & project delivery
● Build solid working relationships with counterparts outside engineering
● If we shortlist you for a lead role, then you'll have to mentor SDE-1 towards their SDE-2 journey.
● Progress up to manager in 2-3 years
● Strong Data Structure and Algorithms
● Experience of building micro services architectures, developing RESTful services, continuous integration, unit and integration testing.
● Proficient with Express, Jest, Sinon and other Javascript frameworks apart from
RDBMS and NoSQL databases - PostgreSQL, MongoDB
● Gauge or other BDD frameworks and experience in Fintech would be preferred.
● Fintech experience - preferred

Similar jobs
Job Title: Backend Developer (Bench Role – Staff Augmentation)
Location: Remote
Engagement Type: Contract / Project-based / Full-time (depending on client)
Experience Range: 2–7 years
About the Opportunity
We are building a strong remote bench of Backend Developers for ongoing and upcoming projects with global SaaS, FinTech, and product-based startups across the US, Canada, and Middle East.
Selected developers will work on exciting projects with flexibility, clear deliverables, and competitive monthly retainers.
Core Skills Required
(You should be confident in at least 1–2 of the stacks below)
Primary Languages & Frameworks:
- Java/Kotlin (Spring Boot)
- Node.js (Express.js or NestJS)
- Python (Django or FastAPI)
- Go (preferred for microservices)
- Ruby on Rails or .NET Core (nice to have)
Backend Architecture & APIs:
- REST API & GraphQL development and consumption
- Microservices & event-driven architecture
- Auth systems (JWT, OAuth2)
- API documentation/testing tools (Swagger, Postman)
Databases:
- Relational: PostgreSQL, MySQL (schema design, indexing, optimization)
- NoSQL: MongoDB, Redis
- Nice to have: Cassandra, ElasticSearch
Messaging & Caching
- Kafka, RabbitMQ, or AWS SNS/SQS
- Caching strategies for performance improvement
Cloud & Infrastructure
- AWS (preferred), GCP, or Azure
- Docker and Kubernetes (required)
- Infrastructure as Code (Terraform, Helm)
CI/CD & Testing
- CI/CD pipelines (GitHub Actions, Jenkins, GitLab CI) – required
- Unit/integration testing frameworks (Jest, PyTest, JUnit)
- Observability: Prometheus, Grafana, Datadog, or ELK stack
Security & Performance
- Secure coding practices (OWASP Top 10)
- API rate-limiting, secrets management, abuse prevention
- Performance profiling & optimization
Ideal Candidate Should Be
- Able to own backend modules end-to-end
- Strong in debugging, performance tuning, and scalable backend design
- Comfortable working in distributed teams across time zones
- Familiar with Agile/Scrum workflows and cross-functional collaboration
- Brings a product mindset—focus on business impact, not just code
Perks for Bench Developers
- Access to global projects (short-term and long-term)
- Regular evaluation & project matching
- Competitive monthly retainers (based on skills & experience)
- Remote-first flexibility with clear deliverables
Apply If You Have Experience In
- Working with startups or product companies
- Building scalable, secure, and maintainable backend systems
- End-to-end feature/API ownership in a fast-paced environment

Stalwart Themius is hiring a Backend Developer - Node.js to join our client's team in Mumbai. The selected candidate will work on cutting-edge technology and product. He/She will gain experience and will stand an opportunity to be hands-on, collaborative and fluent in the latest server-side, web capabilities and technologies. This will include all aspects of the creative process from conceptualizing to completion including design, development, presenting ideas, and working with the leadership team.
- Role: NodeJS Developer
- Experience: 1 - 4 years
- Location: Airoli, Navi Mumbai
Responsibilities:
- Use your knowledge about High Availability, Load Balancing, Scalability, and Distributed Computing in order to design database architectures and data structures that can grow with our business
- Collaborate with Product, Engineering and Business teams to drive the architecture, design, development and deployment of our analytics and a reporting portal
- Identify and address architecture challenges to ensure a robust, safe, securely accessible, highly available and highly scalable product that meets or exceeds customer and end-user expectations
- Collaborate with leadership and technology teams on creative concepts, and then launch and shape the required design components for each presentation and/ or production
- Able to work closely / collaborate with multiple product development teams including software developers
Primary Skills:
- 1-4 years of experience with Node.JS
- 1-4 years of experience with NoSQL (MongoDB)
- Experience with Agile Software Development
Preferred Skills:
- Knowledge of Software Deployment
- Knowledge of IT Security for Web Services
- Expert in using Revision Control Systems (Git)
- Must have outstanding communication and collaboration skills
Benefits:
- Competitive salary and benefits package.
- Opportunity to work with a growing company.
- Collaborative and supportive work environment.
- Opportunities for professional development.


- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Ability to understand business requirements and translate them into technical requirements
- You will ensure that these components and the overall application are robust and easy to maintain.
- Have a good understanding of design and user experience principles.
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment
- Ensuring technologies are used efficiently, profitably, and securely. Evaluating and implementing new systems and infrastructure.
- Excellent troubleshooting, analytical and problem-solving abilities with a tenacious commitment to finding the root cause of issues.
Qualifications :
- B. Tech/ B.E. /M. Tech/ BCA / MCA or a related technical discipline from reputed universities
Skills Required :
- Minimum 2+ years of experience in REST API development using python.
- Must have experience with anyone popular python frameworks like Django, Flask, and FastAPI Framework.
- Experience in designing and developing Restful Web services and Remote procedure calls.
- Able to integrate multiple data sources and databases into one system
- Knowledge of load testing and optimizing code for performance, security, and scalability
- Experience with Unit testing frameworks in Python
- Knowledge of modern authorization & authentication mechanisms.
- Able to create database schemes that represent and support business processes
- Knowledge of Version Control System & basics of CI/CD
- Write and maintain technical documentation
- Solid foundation in OOPS, Data structures, and Algorithms
- Knowledge of SDLC phases of project development.
- Experience in one or more No SQL Databases such as MongoDB, and Cassandra.
- Experience with event-based databases and programming
- Good experience in synchronous programming and thread-based programming.
- Experience with schedulers.
- Good to have knowledge of Linux shell commands.
- Good to have experience in Kubernetes & Docker
- Knowledge of any Cloud Service like GCP or AWS would be an added advantage
- Cares deeply about writing Quality, Testable & Modular code
- Good to have an understanding of NLP.
We are looking for a highly capable Node.js developer to optimize our web-based application performance. You will be collaborating with our front-end application developers, designing back-end components, and integrating data storage and protection solutions.
To ensure success as a Node.js developer, you should possess extensive knowledge of Node.Js based services and experience in a similar role. An accomplished Node.js developer will be someone whose expertise results in the stable, fast, and secure exchange of data between servers and end-users.
Node.js Developer Responsibilities:
Developing and maintaining all server-side network components.
Ensuring optimal performance of the central database and responsiveness to front-end requests.
Collaborating with front-end developers on the integration of elements.
Designing customer-facing UI and back-end services for various business processes.
Developing high-performance applications by writing testable, reusable, and efficient code.
Implementing effective security protocols, data protection measures, and storage solutions.
Running diagnostic tests, repairing defects, and providing technical support.
Documenting Node.js processes, including database schemas, as well as preparing reports.
Recommending and implementing improvements to processes and technologies.
Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
Bachelor's degree in computer science, information science, or similar.
At least two years' experience as a Node.js developer.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
Knowledge of front-end technologies such as HTML5 and CSS3.
Superb interpersonal, communication, and collaboration skills.
Exceptional analytical and problem-solving aptitude.
Great organizational and time management skills.
Availability to resolve urgent web application issues outside of business hours
We are looking for an experienced NodeJS/ExpressJS/TypeScript developer. You will work on the most
critical software development team in a fast-growing data-centric software company. You will develop high performance, highly available REST and GraphQL APIs that will deliver data to our suite of web and mobile
apps.
Duties and Responsibilities
Software Development: You will work with the engineering lead to design and develop REST and
GraphQL APIs that will serve data from MongoDB and ElasticSearch.
Automated Test Scripts: You will write automated test scripts for all of your code. You will work with
the QA manager to determine optimal code coverage.
Code Reviews: You will assist in reviewing PRs raised by other team members. You will be
responsible for ensuring that the code satisfies the documented requirements, includes the necessary
automated tests and follows our documented coding standards and best practices.
API Support: API issues will be reported manually and automatically (via alerts) to a series of Slack
channels. You will monitor these channels and create Jira tickets to diagnose and fix these issues. You
will ensure that affected API consumers are informed regularly as to the status of the open issues.
API Documentation: You (and the rest of the API team) will be responsible for keeping the API
documentation up to date.
Skills and Qualifications
Bachelor's degree in computer science, information science, or similar.
Exceptional analytical and problem-solving skills.
Great organizational and time management skills.
Extensive knowledge of NodeJS libraries and frameworks.
REST APIs: 3+ years required.
GraphQL APIs: 1+ years desired.
ExpressJS or Fastify: 2+ years required
Advanced TypeScript: 1+ years required
NodeJS: 2+ years required
Node Streams: 1+ years desired
AWS High-Availability Clusters: 1+ years desired
MongoDB: 2+ years desired
Search Engines (ES or Solr): 2+ years desired
Big Data: 1+ years’ experience querying datasets with hundreds of millions of rows desired
Mocha/Chai: 1+ years desired
Bitbucket or GitHub: 1+ years required
FULL STACK DEVELOPER
In summary, we're looking for a software developer who will be responsible for the development of our user-facing application and associated web services using MERN stack.
Applicant needs to have good knowledge of programming fundamentals and already know Javascript (or is confident about picking it up). Candidates having at least one year of experience in front-end or back-end development are preferred.
JOB RESPONSIBILITIES:
-
Working closely with primary stakeholders to gather requirements and plan technical solutions.
-
Development and testing of front-end and back-end components, and writing maintainable codebase.
-
DevOps ie, enabling automation of sharing and building code.
-
Documenting and enabling organizational structure and various channels of communication.
-
Communicating thorough requirements and issues with the software system.
CANDIDATES MUST HAVE:
-
Strong programming fundamentals and demonstrable experience through work or projects in any programming language
-
An interest in working in a startup environment
-
At least one year of work experience in the industry or on a project with multiple members
-
A good understanding of web development fundamentals including JSON, REST, HTTP, client/ server, web servers, proxies, reverse proxies, etc
-
A good understanding of Javascript. Alternatively, experience with other languages/ frameworks that would enable quick learning of Javascript will suffice
-
Strong and professional communication skills
Server Side skills:
Should have handson experience on JS technologies more than 3+ years
Building interactive dasboards from multiple systems and RESTfully
abstract to the UI through a Node.js backend
In depth knowledge of NodeJS, ExpressJS and Restify
Knowledge of authentication using PassportJS, AuthO or JWT.
Knowledge of media content uploading using any cloud
Should have good understanding of request validation, schema
validation and Error handling
Good understanding of Promises, Async/Await and Callbacks
Should have knowledge of Socket, Pubsub.
Payment gateways integration using Braintree, Stripe or any other
would be a good skills to have.
Should have good understanding of scheduled tasks in NodeJS and
CronJobs
In depth knowledge of ORM like Mongoose, Sequalize or KnexJS.
Hands on experience with JavaScript/TypeScript Development on
server side.



