
Principal Engineer (node.js)
at FinTech Product Development Firm
Your Responsibilities:
- Own the backend stack – Node.Js based, that powers our product
- Collaborate with Backend Developers (Python), Front-end developers, DevOps, and Data Scientists to design and implement new features
- Build and maintain several REST’ful Services/Endpoints which will be used both internally and externally in a Macroservices/Distributed services environment.
- Deploy and monitor the Services/Endpoints ensuring availability and scalability(ability to handle 100X traffic)
- Work on full project lifecycle starting from requirements gathering/understanding the problem to deploying and maintaining the project.
Skills that you bring Along:
- A minimum 8+ years of extensive work experience with Node.Js and related frameworks – particularly Express.Js.
- Extensive experience in designing and maintaining REST’ful API endpoints
- Extensive experience with databases such as Postgres and Mongo.
- Extensive experience in Cloud Infrastructure (AWS based) – e.g. AWS API Gateway, Lambda Functions etc.
- Experience with cache like Redis and/or Memory cache
- Good experience in Microservices/Macroservices or Event driven Architectures
- Good experience with design patterns
- Experience in writing advanced SQL-queries, good knowledge of PL/SQL
- Good understanding of Software Design Principles and domain-driven design
- Good experience with Continuous Delivery and Containerization(Docker)
- Ideally maintaining infrastructure-as-code using Terraform
- Excellent communication skills and the ability to explain complex topics in a simple manner

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You will be working hands-on on a complex and compound product that has the potential to be used by millions of sales and marketing people around the world. Your contribution to delivering an excellent product platform that:
- enables quick iteration
- supports product customization
- and handles scale
What do we expect you to have?
- 2+ years of experience in backend engineering
- An intent to learn and an urge to build a product by learning different technologies
- Interest in writing complex, scalable, and maintainable backend applications
- Tech stack requirements:
Must haves
- Experience in building application server in Java (Spring / Spring boot) / NodeJS / Golang / Python
- Experience in using SQL databases and designing schemas based on application need
- Experience with container services and runtimes (docker / docker-compose / k8s)
- Experience with cloud paas (AWS / GCP / Azure cloud)
- Experience and familiarity with microservices’ concepts
- Experience with bash scripting
Good to have (Preferred)
- Preferred experience with org wide message queue (rabbitmq / aws sqs)
- Preferred experience with task orchestration services (apache airflow / aws step function)
- Preferred experience with infra as code (or system configuration) tools (terraform / chef / ansible)
- Preferred experience with build essential tools (make / makefile)
- Preferred experience with monitoring and tracing systems for performance / system / application monitoring (grafana + loki + prometheus / aws cloudwatch)
What will you learn?
- Building highly available, complex, compound, performant systems of microservices platform that acts as an API layer
- Industry-standard state-of-the-art tools + methodologies + frameworks + infra for building a product.
- Fable is not a trivial CRUD app. It requires a lot of consideration and care for building the API layer as the product is highly customizable per user.
- How different functions (sales, marketing, product, engineering) in a high-velocity product company work in synergy to deliver an iterative product in real life.
Who would you be working with?
- You would be directly working with the co-founder & CTO who has built multiple companies before and has built large teams in large-scale companies like ThoughtSpot, Unacademy, etc.
Position details
- Fully remote.
- 5 days/week (all public and government holidays will be non-working days).
- No specific work hours (we will sync over zoom over the course of the day).
We are looking for a Backend Developer to join our team to build the first-of-its-kind product in the space - and we are looking for out-of-the-box thinkers with the original thought process and lateral thinking. The code you ship will be used by thousands of users every day helping them get their work done. You will join a young, dynamic and fast-paced environment, and work with cross-functional teams to design, build, and roll out products that deliver the company's vision and strategy.
Responsibilities :
- Backend development with Node.js, MongoDB and Typescript.
- Developing and testing flexible, scalable applications.
- Collaborate with Front end developers to produce optimum output.
- Think out of the box, discuss and implement your ideas over the phase.
Required skills :
- Strong knowledge in creating RESTFUL APIs(web service)
- Proficient understanding of code versioning tools: Git.
- Good knowledge of Docker & Shell scripting
- Basic knowledge of web fundamentals: HTML, CSS
- Experience in DevOps is an added advantage



.NET C# developer provides custom web application development using the .NET Framework, C#, http://VB.NET">VB.NET, http://ASP.NET">ASP.NET, SQL Server and other advanced components of Microsoft technology and provide training to programmer analysts who support the web services manager' responsibilities.
Responsibilities:
The tool development also involves working with SQL queries and web front end
Designing, developing, and testing web applications with .Net HTML, CSS and other technologies
Design and development of software applications (primarily web based) used in various areas of the bank (such as Loans processing, Treasury, Middle Office )
Manages the architecture, design, and coding of software for TFI from concept to finished product, in order to answer the needs of the Strategies, Sales, and Trading departments
Consults with end users within the Strategies, Sales, and Trading departments to identify where technology can automate current processes to enhance revenues and cut cost
Maintains currency in technical skills and all relevant fixed income industry sector factors
May lead the work of others and provide ideas which help to enhance TFI software applications
Software design & development principles such as SOLID, Domain-Driven-Design and Object-Oriented Development
ORM frameworks, particularly the Entity Framework
Managing source code with Git, including Gitlow Workflow- Participating in design discussions, documentation, and development with the team as needed.
- Reporting to team lead/ manager on daily activities planned, expected deliverables, and reports as defined for the project.
- Participating in requirement gatherings as required.
What you need to have:
- Backend Developer with 3+ yrs of experience
- You have spent at least 2 yrs in a solid back end role.
- Javascript, Typescript, NodeJS
- Client-server architecture
- OOP concepts, including design patterns
- Understanding of RDBMS (MySQL, Postgresql)
- Understanding of REST API
- Familiarity with frameworks such as ExpressJs, NestJs
- Knowledge of TDD frameworks mocha, chai, jest, etc
- Knowledge of AWS (Lambda, RDS, EC2, SQS, S3, ECS, etc)
- Attention to detail
- Excellent communication skills
- Flexible and focussed on solutions
- Organized and self-sufficient
- Prioritize learning and growth
- Enjoy working with a team
- You've prior experience in fintech
- You've had experience taking a problem to a product solution (module/ product)
- Prior experience working with startups and understand the fast-paced, dynamic nature of work.
- You're based in Bangalore, India
Key Responsibilities:
● Node.js Developer responsible for managing 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.
● Strong proficiency with JavaScript
● Knowledge of Node.js core and frameworks Express, StrongLoop, koa, hapi etc
● Understanding the nature of asynchronous programming and its quirks 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 accessibility and security compliance
● Integration of multiple data sources and databases into one system
● Understanding fundamental design principles behind a scalable 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.
Technical Skills:
● Expert knowledge of key Web technologies as HTML5, CSS3,
● Expert in JavaScript / AJAX, NodeJS, React.
● Expert knowledge of OO Analysis and Design,
● Expert on Design Patterns and Frameworks as NodeJS, React.
● Knowledge of Agile methodologies (Scrum).
Soft Skills:
● Self-motivation to work independently and strong work ethic.
● Ability to work in a team, and adapt to new and evolving processes.
● Flexibility and adaptable
● Deep experience with Agile



You have 7 years or more of backend development experience with expertise in designing and
implementing high-performance applications.
Worked with and built high performance products using Node Js/GoLang/ Python and have seen
the product evolution cycle from PoC to Production
You have a deep understanding of design principles and can rightly judge/implement solutions to
complex problems
You are capable of writing high-quality code that conforms to the standards and best practices in a
particular language/framework.
You have experience building a product using a mainstream library or framework.
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 environment, and finally monitoring.
Integration of user-facing elements developed by front-end developers with server side logic
Writing reusable, testable, and efficient code
Design and implementation of low-latency, high-availability, and performant applications
Implementation of security and data protection
Integration of data storage solutions, may include databases, key-value stores, blob stores, etc
Integrating in-house product with third party applications and creating ready connectors
Build microservices with modular design
Benchmarking applications in terms of number of concurrent users, number of requests per second and similar parameters
Documenting and updating APIs for customers systematically
Required Skills:
Programming Language: NodeJS
Capabilities: REST APIs, WebSockets, Express
Databases: MongoDB, Redis, ElasticSearch
Tools: GIT, VSCode
__________________________________________________________________
**ONLY LOOKING FOR CANDIDATES WHO LIVE IN MUMBAI
AnnexLogic System Pvt. Ltd. is a leading comprehensive business software product development services provider. We partner with both start-ups and established businesses globally in their idea-to-implementation journey. We are a team of professionals who believe in creating business value for our clients through in-depth research, analysis, formation and implementation. Our customers are spread across the globe including the US, Canada, Australia, UK, Europe and Asia-Pacific region.
We are always looking for opportunities to extend our team with new proficient and talented colleagues who love working in a start-up culture, and this time, we need a Senior Back-end Developer, with strong technical skills and relevant experience of at least 4 years.
You’re a motivated team player who takes initiative and pride in his work and contributes to an informal working environment. You will be confident in your ability to develop the product, taking into account the following:
● Excellent knowledge of NodeJS
● At least 3 years of working experience with backend technologies
● Knowledge of PHP is considered a plus
● Knowledge of Java or Kotlin is considered a plus
● You can learn quickly new technologies and adapt to new technical challenges
● Experience in working with a TDD approach
● You have a strong background in Linux-based development
● You have previous experience with container technologies such as Docker
● You have strong knowledge of microservice architecture
● You are passionate about writing clean, maintainable & testable code
● You have strong Agile/Scrum work ethic
● You are continuously researching tools, technologies, frameworks and practices.
● Projects with a high complexity interest you
● You are highly committed and responsible, independent and able to take an initiative
● You are always mindful of quality attributes like maintainability, performance, security, scalability, usability and testability.
● You carefully read the specifications and assignments and you like to take responsibility for your components from start to end
● You feel comfortable discussing and deepening technical and technical requirements with the PM
● You have multitasking capabilities, attention to detail and excellent analytical skills
● Excellent interpersonal and teamwork skills 1 Responsibilities:
● Work on multiple microservices - written in NodeJS (TS, JS), Spring (Kotlin), PHP (Symfony)
● Develop new microservices to accommodate the (many) new features and requirements of the project
● Refactor existing microservices or extract new ones to improve performance and scalability
● Come up with ideas to improve existing architecture - feedback and ideas are always welcome
● Monitor, trace and debug production microservices to ensure an application with 0 downtime
● Work to improve the CI / CD flow of the project Things we can guarantee:
● Competitive salary, with many other extra benefits (complex medical package, extra free days, events, gifts and others)
● Opportunity to work on a challenging project, using the latest technologies
● The perfect framework for professional development
● A young, creative and friendly team
● A flexible work schedule which makes you more productive
● We support any opportunities that are useful for you, including training and events


What we are looking for
- At-least 3 years of experience of development on backend applications. Full stack experience is a cherry on the top!
- Experience / knowledge of designing robust systems, maintaining & scaling them
- Experience with usage of NoSQL databases like MongoDB & with SQL and RDBMS Systems
- Experience of creating applications with any of the popular frameworks in Python, Java, GoLang, Node
- Experience with JS frontend frameworks like React, Angular, Vue etc is a big plus
- Well versed with versioning systems like git
- Understanding of rest API implementation
Some of the responsibilties you will be taking up are following
- Working on creating performant and fault tolerant systems which are scalable
- Design, build, and maintain high performance, reusable, and reliable codebase
- Effectively work with product to gather requirements, gain deep understanding of use cases and business needs, and translate into design and implementation.
- Maintain code integrity and organization.
- Manage basic devops related to CI/CD
- Creating secure systems
- Lead other junior developers
- Define optimal and minimal architecture to achieve product requirements


