Senior Backend Developer (Node.js + AWS + MongoDB)

Job Title : Golang Backend Developer

Experience : 3+ Years

Location : Bangalore (Work From Office)

Notice Period : Immediate to 15 Days (Strict)

🚀 About the Role :

We are looking for a Backend Developer with strong Golang expertise to build scalable, high-performance systems. You will play a key role in designing microservices, handling concurrent workloads, and developing robust backend architectures for production-scale applications.

🔥 Mandatory Skills :

Strong hands-on experience in Golang, Microservices Architecture, REST APIs, Concurrency (goroutines & channels), PostgreSQL/MySQL, Redis, Messaging Systems (Kafka/RabbitMQ/SQS), AWS/GCP, Docker & Kubernetes, and CI/CD pipelines.

🛠️ Key Responsibilities :

• Design, develop, and maintain scalable backend services using Golang.
• Build high-performance REST APIs and microservices.
• Develop concurrent and distributed systems using goroutines and channels.
• Implement event-driven and asynchronous architectures.
• Optimize system performance, latency, and database efficiency.
• Integrate messaging systems and caching layers for scalability.
• Collaborate with cross-functional teams for end-to-end delivery.
• Ensure high code quality, testing, and system reliability.
• Monitor, debug, and enhance production systems.

Required Skills & Qualifications :

• Strong hands-on experience in Golang (must-have).
• Solid understanding of Concurrency in Go (goroutines, channels, worker pools).
• Experience with Microservices Architecture.
• Strong knowledge of RESTful API development.
• Proficiency in Databases : PostgreSQL / MySQL / MongoDB.
• Hands-on experience with Redis (caching).
• Experience with Messaging Systems: Kafka / RabbitMQ / SQS.
• Hands-on experience with AWS or GCP.
• Experience with Docker & Kubernetes.
• Familiarity with CI/CD pipelines (GitHub Actions, Jenkins, etc.).
• Strong understanding of Data Structures, Algorithms, and System Design.

Good to Have :

• Experience with gRPC-based microservices.
• Familiarity with monitoring tools like Prometheus, Grafana.
• Exposure to high-scale distributed systems.
• Experience with event-driven architectures.
• Knowledge of security practices (JWT, OAuth2, RBAC).

What We’re Looking For :

• Strong problem-solving and debugging skills.
• Ownership mindset with end-to-end feature delivery.
• Ability to write clean, efficient, and maintainable code.
• Comfortable working in a fast-paced, high-growth environment.

You can also register yourself on the below platform to proceed further :

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Senior Python Developer to lead the development of scalable, high-performance backend systems and data-driven applications. You will work on building robust services, APIs, and data workflows that power real-time and batch applications.This role is ideal for a seasoned developer who thrives on solving complex problems, building reliable software, and working across data and engineering teams. Youll play a key role in designing and developing Python-based systems that interface with big data frameworks, cloud platforms, and analytics tools.Key Responsibilities

• Design and develop robust Python-based backend services and microservices.
• Build RESTful APIs and integrations with third-party systems and internal tools.
• Work with data workflows involving ingestion, transformation, and validation.
• Develop and maintain ETL/ELT pipelines using Python, SQL, and Airflow.
• Collaborate with DevOps teams to deploy, monitor, and scale applications in cloud environments (AWS, Azure, GCP).
• Optimize code for performance, scalability, and maintainability.
• Write unit and integration tests, participate in code reviews, and follow CI/CD best practices.
• Work with cloud storage, databases, and data lake technologies like S3, Parquet, and DuckDB.
• Collaborate with data scientists, analysts, and engineers to enable data access and modeling.

Required Skills & Qualifications

• 5+ years of experience in backend software development, primarily in Python.
• Strong understanding of OOP, modular design, and Python design patterns.
• Experience with web frameworks (e.g., Flask, FastAPI, Django).
• Hands-on experience with data processing tools like Pandas, SQLAlchemy, PyArrow.
• Proficiency with SQL and database technologies (PostgreSQL, DuckDB, etc.).
• Experience with Airflow for workflow orchestration.
• Knowledge of building scalable, distributed applications and microservices.
• Familiarity with cloud platforms (AWS, Azure, GCP) and containerization tools (Docker, Kubernetes).
• Solid understanding of version control (Git), testing frameworks (PyTest), and CI/CD pipelines.
• Excellent problem-solving, debugging, and communication skills.

Preferred Skills (Nice to Have)

• Experience with data processing frameworks like Apache Spark or Vaex.
• Familiarity with data storage formats and tools like Parquet, Iceberg.
• Exposure to data streaming platforms (Kafka, Kinesis, Flink).
• Experience integrating backend systems with AI/ML pipelines or BI platforms.
• Understanding of security standards and compliance (GDPR, HIPAA, SOC2).
• Background in metadata-driven or event-driven architectures.

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required:

• At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

Backend Architect

Experience - 12+ yrs

Mandatory Skills - NodeJS & MongoDB(Data Modelling/ Complex Queries/ Aggregation pipeline )

About Wekan Enterprise Solutions

Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.

Job Description

We are looking for passionate architects eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments leading technical teams, designing system architecture and reviewing peer code. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?

You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer's technical teams and MongoDB solutions Architects.

Location -Chennai or Bangalore

• Relevant experience of 12+ years building high-performance applications with at least 3+ years as an architect.
• Good problem solving skills
• Strong mentoring capabilities
• Good understanding of software development life cycle
• Strong experience in system design and architecture
• Strong focus on quality of work delivered
• Excellent verbal and written communication skills

Required Technical Skills

• Extensive hands-on experiencebuilding high-performance applications using Node. Js (Javascript/Typescript) and. NET/ Golang / Java / Python.
• Strong experience with appropriate framework(s).
• Well versed in monolithic and microservices architecture.
• Hands-on experience with data modeling onMongoDB and any other Relational or NoSQL databases
• Experience working with 3rd party integrations ranging from authentication, cloud services, etc.
• Hands-on experience with Kafka or RabbitMQ.
• Hands on experience with CI/CD pipelines and atleast 1 cloud provider - AWS / GCP / Azure
• Strong experience writing and maintaining clear documentation

Good to have skills:

• Experience working with frontend technologies - React. Js or Vue. Js or Angular.
• Extensive experience consulting with customers directly for defining architecture or system design.
• Technical certifications in AWS / Azure / GCPor other relevant technologies

Roles and responsibilities:

• Responsible for understanding functional and business requirements and translate them into effective code
• Provide support till deployment of code into production.
• Ownership for ensuring code optimization, problem diagnosis, and on-time delivery
• Implement solutions as per the pre-defined framework /guidelines and adherence to processes
• Finding an optimal solution for the problem statement
• Conduct peer code review.

What candidate should know about:

• Excellent hands-on experience with Node.Js, Express.Js, JavaScript
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Excellent hands-on experience with MongoDB, Mongo aggregation, MySQL
• Ability to build REST services, Authentications, MVC applications
• Excellent Object Oriented Programming skills and ability to write modular, secure, scalable, and maintainable code
• Experience with Elastic Search, Redis.
• Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
• Self-learning abilities are required
• Familiarity with upcoming new technologies is a strong plus

We’re looking for a Senior Backend Engineer to help us build the tools, services, and applications that will enable us to be the planet’s most patient-focused pharmacy. You will work on projects ranging from greenfield initiatives to matured products with an active user base. 

• Collaborate with engineering team to design and implement products using event driven micro-services architecture.
• Interact with Product Managers and key stake-holders on regular basis to understand and execute Product vision.
• Take charge of end-to-end feature development, right from proof-of-concept to production deployment and support
• Brainstorm and lead continuous improvement projects for product
• Providing feedback to peer developers on code quality and development standards.
• Mentoring team on strong coding and design standards.
• Setting the bar high for development practises while striking the right balance between pragmatism and perfection for code and processes.
• Effectively document API's and services using Swagger/OpenAPI, visualize flow and dependencies using diagrams, and create technical documents on engineering wikis.
• Present crisp and clear feature demos to stakeholders.

Some of our opensource projects- https://meet.google.com/linkredirect?authuser=0&;dest=https%3A%2F%2Fgithub.com%2Fmedly">https://github.com/medly

We don’t expect anybody to be an expert on all of these, but you should be deeply familiar with some, and a self-starting learner who isn’t afraid to ask for help:

• Polyglot Development (at least 1 more lang apart from Java and JavaScript)
• At least one JVM language
• Functional Programming, 
• OO Design, Clean Code, SOLID principles
• Solid grasp on HTTP, and REST
• Web based SaaS product development
• Deployment to AWS or any cloud
• Test Driven Development, 
• Security Compliance like HIPAA, PCI-DSS, SOC2
• Git, Linux, CI/CD, Gradle, IDEA
• Security based on OAuth2 / OIDC
• SQL and NoSQL DBs like PostgreSQL, DynamoDB, ElasticSearch
• Docker
• SQL Migration tools like Liquibase, Flyway
• Semantic Versioning, Feature Toggles, PR, Feature Branches

• 3+ Years of experience mainly on Backend Development using any two languages (Java, Kotlin, NodeJS, Ruby etc.)
• Minimum a bachelor degree in Computer Science, Engineering or any related field.

• Develop service/APIs using Kotlin/Micronaut Node/Serverless
• Aurora Serverless PostgreSQL DB
• AWS, Lambda, API Gateway, Amplify, Cognito, Okta
• Github, Github Actions, SonarCloud
• Database versioning using tools like Liquibase
• Terraform to manage infra
• Cloudwatch/AWS X-Ray to monitor the infra
• Opportunity to make Open Source Contribution

Responsibilities:

• Crawl the internet/intranet for issues people are facing and convert them in to stuctured data that would be consumed downstream.
• Familiar with the software development life cycle (SDLC) from analysis to deployment.
• Comply with coding standards and technical design.
• Adapts structured coding styles for easy review, testing, and maintainability of the code.
• Integrate the developed functionality and/or component into a fully functional system.
• Ensure unit and integration level verification plans are in place and adheres to the great quality of code at all times.
• Actively participate in troubleshooting, debugging and updating current live system.
• Verify user feedback in making the system more stable and easy.
• Work closely with analysts, designers, and other peer developers.

Requirements:

• Bachelor's degree in computer science or equivalent practical experience.
• Understanding of OOPS concepts, Persistence, Threading.
• Good understanding of version control system (GIT).
• Knowledgeable in data structures and algorithms.
• A background in Engineering with sound oral and written communication skills.
• 6+ years of experience working on the server-side.
• Exposure to API designing, scalable architecture, and thorough understanding of systems.
• Great database modeling skills.
• Working knowledge of Databases, both relational (such as PostgreSQL) and in-memory database (such as Redis).
• Good understanding of web stack and how all the pieces fit together.
• Experience with open-source projects.
• Experience in designing interactive applications.