Expertise in Angular JS, Node JS, React JS.

About Sigma Infosolutions
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Job Title: Lead Web App Developer - Backend
Experience: 10–15 Years
Location: Bengaluru
Role Overview:
We are seeking an experienced Lead Web App Developer - Backend to design and maintain scalable, cloud-based backend systems. This role demands expertise in microservices, AWS, and backend technologies to deliver efficient and high-performing applications.
Key Responsibilities:
- Build and maintain scalable backend systems for cloud-based web applications.
- Develop microservices using AWS (Lambda, SQS, SNS) and databases (MySQL, NoSQL).
- Design and implement REST APIs for seamless communication between systems.
- Create containerized solutions with Docker for efficient deployment.
- Solve real-world problems with enterprise-class product designs.
- Contribute to key decisions on product and technology direction.
- Promote frameworks, standards, and new technologies within the team.
Required Skills:
- Experience: 10+ Years in backend development; 3+ Years in large-scale, microservices-based projects.
- Backend Technologies: Proficiency in Python, Node.js, and Java.
- Cloud Expertise: Strong experience with AWS services (Lambda, SQS, SNS).
- Database Skills: Expertise in MySQL and NoSQL databases.
- Microservices Architecture: Deep understanding of distributed systems and scalability.
- DevOps Tools: Hands-on experience with Docker.
- API Development: Proven expertise in designing and consuming REST APIs.
- Soft Skills: Excellent problem-solving and communication abilities.
Why Join Us?
- Work on impactful projects with real-world applications.
- Solve complex problems in a dynamic, fast-paced environment.
- Collaborate with a team of skilled professionals.
Responsibilities:
● Design and build scalable APIs and microservices in Node.js (or equivalent backend frameworks).
● Develop and optimize high-performance systems handling large-scale data and concurrent users.
● Ensure system security, reliability, and fault tolerance.
● Collaborate closely with product managers, designers, and frontend engineers for seamless delivery.
● Write clean, maintainable, and well-documented code with a focus on best practices.
● Contribute to architectural decisions, technology choices, and overall system design.
● Monitor, debug, and continuously improve backend performance.
● Stay updated with modern backend technologies and bring innovation into the product.
Desired Qualifications & Skillset:
● 2+ years of professional backend development experience.
● Proficiency with Node.js, Express.js, or similar frameworks.
● Strong knowledge of web application architecture, databases (SQL/NoSQL), and caching strategies.
● Experience with cloud platforms (AWS/GCP/Azure), CI/CD pipelines, and containerization (Docker/Kubernetes) is a plus.
● Ability to break down complex problems into scalable solutions.
● Strong logical aptitude, quick learning ability, and a proactive mindset
- Develop, test, and maintain server-side applications using Node.js and related technologies.
- Design and implement RESTful APIs and microservices architecture to support frontend functionality.
- Collaborate with cross-functional teams to understand business needs and translate them into technical solutions.
- Optimize application performance, ensuring scalability and reliability.
- Conduct code reviews, mentor junior developers, and ensure adherence to best practices.
- Stay updated with emerging backend technologies and methodologies to improve development processes.
Mandatory
- SaaS experience of 2 years with total development experience of 4 years
- Must have worked in a smaller company of less than 100
- Should have built solutions/softwares end to end and not just as a part of bigger team
- Should see themselves going deeper into the same role even 5 years down the line
- Should have knowledge on Node.js, MongoDB, and AWS
- Strong understanding of asynchronous programming, event-driven architecture, and Node.js design patterns.
- Proficiency in working with databases such as PostgreSQL, MongoDB, or MySQL.
- Experience with API development, including RESTful services and microservices.
- Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
- Strong problem-solving skills and the ability to debug complex server-side issues.
Essential
- Proficiency with version control systems like Git.
- Experience with CI/CD pipelines and deployment automation.
- Knowledge of system design and scalable architecture.
- Understanding of security best practices and implementing secure APIs.
Good to Have
- Experience with GraphQL and related backend technologies.
- Knowledge of containerization and orchestration tools like Docker and Kubernetes.
- Familiarity with message brokers like RabbitMQ or Kafka.
- Experience with platforms like Shopify, BigCommerce, or other e-commerce technologies.
- Exposure to frontend technologies such as React for better cross-functional collaboration.
Job Title: PHP Laravel Developer
Department: Research and Development
Experience: 1-3 years
Job Type: Full time/Permanent
Location: Mohali, phase 7, Industrial Area
Reports to: Technical Lead
Role Description
We are looking for a PHP Laravel Developer with Efficient, organized, and able to manage multiple projects at once. Assist team members & colleagues to solve technical issues. Developing and executing appropriate quality plans, project plans, test strategies, and processes for development activities.
You will be part of a talented software team that works on mission-critical applications, and your roles and responsibilities include managing application development while providing expertise in the full software development lifecycle.
Job Responsibilities
⦁ Knowledge of PHP web frameworks including Laravel
⦁ Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
⦁ Strong Knowledge of MySQL.
⦁ Understanding of object-oriented PHP programming.
⦁ Working knowledge of ReactJS/NodeJS (preferred)
⦁ Excellent knowledge of Vue.js
⦁ Proficient in creating REST APIs.
⦁ Ability to project manage.
⦁ Good problem-solving skills.
⦁ Ability to work with cross-functional teams.
⦁ Good at research and working under pressure.
Benefits:
⦁ Day shift
⦁ 5 day a week
⦁ Performance bonus
- Worked as a Node.js developer on multiple projects with relevant experience between 1 to 4+ Years.
- Extensive knowledge of Nodejs, JavaScript, APIs, web stacks, libraries, and frameworks.
- Able to work on independent nodejs projects.
- Experience in mongoDB database queries. Able to write and manage complex DB queries .
- Exceptional analytical and problem-solving aptitude.
What You'll Do :
You will be a part of our backend team working on keeping our REST API and GraphQL API up and running and making sure that our users get the right data at the right time.
You will have ownership of developing and maintaining our backend services including users, courses, and operations tools that manage our product and logistics.
You will work on architecting and scaling highly-available RESTful services and back-end systems from scratch.
This is a position for an experienced Node programmer with at least 2 years under the belt, but you don't have to be a rock star, a ninja, or a superhero to apply.
What You'll Need :
You will fit well in the backend team if you are passionate about technology and have experience programming in Node. Knowledge of technologies like Cassandra, Elasticsearch, PostgreSQL, REST and JSON will help you get going from day one.
As an experienced Node developer, you should be intimately familiar with the platform, with
JavaScript, and with the stables of full-stack web development : HTTP, JavaScript, CSS, HTML, SQL.
It's a bonus if you're broadly familiar with other languages as well- we write some services in Go and have data pipelines written in Python- but your main work will be JavaScript through and through.
You will be a perfect match with our team if you love collaborating with people from all disciplines to solve complex problems, always want to learn new skills and take ownership of your work.
Technical Skills Required:
Experience in cross platform development with strong knowledge on Node.js .Experience on implementing NFRs but not limited to Performance, Scalability, Availability, Maintainability and Security Good understanding on CICD process Knowledge of Micro services and respective architecture design principles and scalability best practices.
Experience to work in a Global delivery environment Experience implementing Cloud and or Hybrid Cloud solutions Experience .
developing APIs against database technologies .
(MySQL, Postgres) Proven experience working with Agile methodologies for delivering software Experience with Open Source work management tools JIRA, Jenkins, and GitHub.Strong background in Logic and Algorithms Perform analysis, design, programming, and implementation on systems and procedures to solve complex business problems








