React.js | Sr. Developer

Job Details

- Job Title: Full Stack Engineer

- Industry: SAAS

- Function – Information Technology

- Experience Required: 5-7 years

- Working Days: 6 days

- Employment Type: Full Time

- Job Location: Bangalore

- CTC Range: Best in Industry

Preferred Skills: TypeScript, NodeJS, mongodb, RESTful APIs, React.js

Criteria

Candidate should have at least 4+ years of professional experience as a Full Stack Engineer

Hands-on experience with both React.js and Node.js

Solid understanding of MongoDB

Should have experience in RESTful APIs

Should be from a startup or scale up companies

Should have good experience in Typescript

Strong understanding of asynchronous programming patterns

Preferred candidates from SAAS/Software/IT Services based startups or scaleup companies

Job Description

The Role:

We’re looking for a Full Stack Engineer to build, scale, and maintain high-performance web applications for company’s technology platforms. This role involves working across the stack-frontend, backend, and infrastructure - using modern JavaScript-based technologies.

You’ll collaborate closely with product managers, designers, and cross-functional engineering teams to deliver scalable, secure, and user-centric solutions. This role is ideal for someone who enjoys end-to-end ownership, technical problem-solving, and working in a fast-paced startup environment.

What You’ll Own

1. Full Stack Development

● Design, develop, test, and deploy robust and scalable web applications.

● Build and maintain server-side logic and microservices using Node.js, Express.js, and TypeScript.

● Contribute to frontend feature development and integration.

● Participate in feature planning, estimation, and execution.

2. Backend & API Engineering

● Design and develop RESTful APIs and backend services.

● Implement asynchronous workflows and scalable microservice architectures.

● Ensure performance, reliability, and security of backend systems.

● Implement authentication, authorization, and data protection best practices.

3. Database Design & Optimization

● Design and manage MongoDB schemas using Mongoose.

● Optimize queries and database performance for scale.

● Ensure data integrity and efficient data access patterns.

4. Frontend Collaboration & Integration

● Collaborate with frontend developers to integrate React components and APIs seamlessly.

● Ensure responsive, high-performing application behavior.

5. System Design & Scalability

● Contribute to system architecture and technical design discussions.

● Design scalable, maintainable, and future-ready solutions.

● Optimize applications for speed and scalability.

6. Product & Cross-Functional Collaboration

● Work closely with product and design teams to deliver high-quality features in rapid iterations.

● Participate in the full development lifecycle—from concept to deployment and maintenance.

7. Code Quality & Best Practices

● Write clean, testable, and maintainable code.

● Follow Git-based version control and code review best practices.

● Contribute to improving engineering standards and workflows.

What We’re Looking For

Must-Haves

● 4+ years of professional experience as a Full Stack Engineer or similar role.

● Strong proficiency in JavaScript and TypeScript.

● Hands-on experience with Node.js and Express.js.

● Solid understanding of MongoDB and Mongoose.

● Experience building and consuming RESTful APIs and microservices.

● Strong understanding of asynchronous programming patterns.

● Good grasp of system design principles and application architecture.

● Experience with Git and version control best practices.

● Bachelor’s degree in Computer Science, Engineering, or a related field.

Good-to-Have / Preferred

● Frontend development experience with React.js.

● Exposure to Three.js or similar 3D/visualization libraries.

● Experience with cloud platforms (AWS, GCP, Azure – EC2, S3, Lambda).

● Knowledge of Docker and containerization workflows.

● Experience with testing frameworks (Jest, Mocha, etc.).

● Familiarity with CI/CD pipelines and automated deployments.

Tools You’ll Use

● Backend: Node.js, Express.js, TypeScript

● Frontend: React.js (preferred)

● Database: MongoDB, Mongoose

● Version Control: Git, GitHub / GitLab

● Cloud & DevOps: AWS / GCP / Azure, Docker

● Collaboration: Google Workspace, Notion, Slack

Key Metrics You’ll Own

● Code quality, performance, and scalability

● Timely delivery of features and releases

● System reliability and reduction in production issues

● Contribution to architectural improvements

Why company

● Work on impactful, product-driven tech platforms.

● High-ownership role with end-to-end engineering exposure.

● Opportunity to work with modern technologies and evolving architectures.

● Collaborative startup culture with strong learning and growth opportunities.

Tech Lead (India) — Help Build WebLager’s Next Engineering Hub

Location: India

Team: Product & Development

Reporting to: Head of Product & Development (Denmark)

Why this role exists

WebLager is scaling fast, and 2026 will be a breakout year. We’re building an Indian IT office that’s not an outsourced extension of Denmark.

This is a real “build it right from day one” leadership role.

You’ll be our right hand in India — shaping the team, culture, and delivery. If you want to build something meaningful that’s expected to grow a lot next year, keep reading.

What you’ll do

You’re not here to babysit Jira. You’re here to ship, lead, and raise the bar.

●    Build and lead our India engineering team from early stage into real scale in 2026.

●    Set standards for quality and delivery — clean code, stable systems, smart execution.

●    Coach and grow people across levels: students, juniors, mid-levels, seniors.

●    Create a local WebLager community that feels like one company, not two offices.

●    Work tightly with Denmark on product, architecture, and delivery — as a partner, not a follower.

●    Stay hands-on: design, code, review, refactor, deploy.

●    Scale enterprise systems: performance, reliability, maintainability, observability.

●    Improve how we work: CI/CD, engineering rituals, docs that matter, fewer surprises.

●    Be the technical anchor when things are complex, messy, or moving fast.

What you bring

We don’t care about buzzwords. We care about proof you can build and lead.

Must-haves:

●    5+ years as a developer, with real production systems behind you.

●    Strong backend skills — ideally Python or another scripting language, plus Java/C# or similar, and also extensive database knowledge of both relational and

non-relational databases.

●    Frontend experience with a reactive framework like Angular, React, Vue, etc.

●    Experience scaling enterprise-grade systems and making architecture tradeoffs that hold up.

●    You’ve led people before (formally or naturally) and enjoy helping others grow.

●    Excellent problem-solving skills — you don’t freeze when things are unclear; you untangle them.

●    Near-perfect English (spoken and written). This is non-negotiable — you’ll work daily across countries and levels.

●    You take ownership by default and don’t need a map for every step.

Nice-to-haves:

●    You’ve helped build or grow a team from scratch.

●    Cloud + DevOps experience.

●    Product-minded engineering: you care about outcomes, not just tasks.

The kind of person who’ll thrive here

Let’s be direct:

●    You’re driven to create real results, not just “do your part.”

●    You want to build something from the ground up and shape the future of a company.

●    You lead with calm, clarity, and high standards.

●    You’re motivated beyond the norm — you don’t settle for “good enough.”

●    You know a Tech Lead is someone who steps up, helps others win, and keeps shipping.

●    You’re hungry to learn, and confident enough to challenge weak solutions.

The kind of person who won’t

Also direct:

●    If you expect everything to be built around you, look for another job.

●    If you want Denmark to hand you tasks, this isn’t it.

●    If you avoid responsibility or hard conversations, this will hurt.

●    If “average and comfortable” is your goal, don’t apply.

We’re building an exceptional team. Mediocre doesn’t survive here.

What you get

●    A rare chance to build an office, a culture, and a high-performing team in India from scratch.

●    Direct partnership with Danish leadership and product org.

●    Real influence over architecture, standards, and execution.

●    A company that values ownership and speed over politics.

●    Massive growth opportunity as the India office scales in 2026.

●    Competitive salary + benefits.

How to apply

Only reach out if you genuinely believe you’re the right fit and you’re motivated to build something one-of-a-kind.

Send: (This is mandatory)

●    A short page about you and what you’ve built.

●    CV/LinkedIn/GitHub/portfolio.

●    2–3 projects you’re proud of, and why.

Roles and Responsibilities 

1) Understand client requirements and functionalities. 

2) Write well-designed, testable, efficient code. 

3) Responsible for solving complex technical issues. 

4) Ensure quality projects are delivered within defined timelines. 

5) Active involvement in client communication to understand functional requirements. 

6) Maintain high standards of quality for code, documentation and other deliverables. 

Required Skills 

1) Good experience in Angular/React

2) Hand on Node.JS./Express JS 

3) Database : MYSQL/MongoDB 

4) Experience in Java Script, Typescript. 

5)Good experience in HTML5, CSS3, JavaScript, Jquery 

6) Experience working in an Agile environment. 

7) Good communication skills.

About TechWeirdo:

Techweirdo delivers secure enterprise solutions from SaaS to On-Premise, anywhere, from Application to AI. We offer consultation, services and products to holistically address the digital transformation goals of the enterprises.

We are currently hiring a passionate, product-oriented MERN stack engineer to join a collaborative and innovative team to create technologically challenging, visually delightful, and easy-to-use digital products in a fast-paced environment.

Key Responsibilities:

• Design, build, optimize different modules of scalable applications on MERN stack

• Work closely with architects, business analysts, product managers, QA and UI designers to understand the deliverable and business priorities, UX flow and deliver QA approved, unit-testable solutions

• Collaborate with other members of technical team, delegate tasks, participate in code reviews and find out scope of further optimization

• Appear in project interviews, product roadmap discussions, feasibility analysis and sprint retrospective meetings to help in smooth project delivery as per customer expectation and technological excellence.

Skills/ Role Requirements:

• Strong knowledge of Node.js, Express, Microservices, npm packages

• Reactjs (exposure to Typescript is preferred)

• MongoDB, MySQL or any other Sql database

• Ability to write high quality REST APIs in Nodejs and Express

• Ability to create highly scalable and modular components

• Strong knowledge of using ORMs (Sequelize, mongoose)

• Hands-on experience on deploy, monitor, optimize, load-balance large scale nodejs applications on production

• Experience in serverless architecture either lambda or google cloud functions are a plus

• Hands-on experience on Docker, message queue, Redis, AWS managed services are a plus

• Server-side rendering (Nextjs), knowledge of Unix, shell script, deployment, and code sanitization/optimization (Intermediate)

• Have experience in working on large scale enterprise applications

• Strong understanding of coding best practices, error handling, lazy loading, etc.

• Experience in object-oriented design skills.

• An analytical mind and Problem-solving skills

• Open source contribution, active participation in developer communities, publishing own npm packages are plus

Working with TechWeirdo be like:

1. Surrounded by curious learners: With a Growth Mindset as our core strength, we created a learning environment with curious tech learners.

2. New challenges every day: There is no ordinary day at TechWeirdo, if you like solving problems, then this is the right place for you.

3. Zero micro-management, limited supervision: We encourage our team to take on challenging tasks and solve complex problems by taking ownership of their tasks. We trust our team to take calculated risks.

4. Great networking: You will be connected with c-suite executives of top organizations while working with our winning team.

5. Building technology how you want, when you want: We welcome people who see things differently as they are the one who has ability to change the world.

6. Being heard in every meeting: At TechWeirdo, suggestions are encouraged, initiatives are supported, and opinions and perspectives are valued.

Primary Requirements:

• Should be comfortable in doing coding in C#, ASP.NET Core, WCF.
• Should have knowledge of SQL Server.
• Comfortable in working with Angular 2+, Typescript, HTML, CSS.
• Should have experience 5+ years.
• Comfortable in working with source control GIT, TFS.

You would be a great if you have:
Clear and concise communication skills, meaning you can talk to your team, customers and well as the CTO or CEO.

• A bachelor’s / master’s degree in computer science and application.
• Knowledge of software testing includes unit, integration, and automation.
• Proficiency with basic word processing and presentation applications (i.e. MS Office: Word, Excel, PowerPoint) required. Knowledge of flow diagramming applications and collaboration platforms, (i.e. Visio, SharePoint) required.
• An understanding of health care laws in India and the U.S.
• An understanding of PHI and HIPAA.
• An understanding of clinical workflows, including dispensing and clinical monitoring
• An understanding of laws regulating the clinical practice, therapeutic/toxic dosing, drug interactions, contraindications, and adverse effects of drug therapy.
• Ability to prepare and maintain accurate, routine reports and records; supervise the work of support personnel and judge the adequacy of their work performance; communicate effectively orally; use professional judgment to make decisions, problem solve, and prioritize activities; use initiative and act independently. 
• Experience with EMRs or care management software.
• You are a critical thinker who brings a passion and love for healthcare
• You are comfortable in a team setting working with clients, management, and internal resources in a fast-paced agile environment
• You believe supporting your team is the most important part of the job

You know your job is to be interrupted multiple times a day and yet you still get the job done

• Work with data science teams ,development teams and product managers to ideate
• software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software .
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software
• Capable to handle the individual module / Project

• 2-5 years of relevant experience as a Full Stack Developer or similar role
• Experience developing Web based,desktop and mobile applications
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery etc).
•  Knowledge of multiple back-end languages (e.g. Java, Python,C#) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Experience in React.js .
• Experience in Python Django Framework .
• Familiarity with databases (e.g. MySQL,Postgresql, MongoDB), web servers (e.g.Apache) and UI/UX design .
• Familiarity with Cloud services like AWS, GCP.
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind

• React Js
• React - Redux
• redux - Thunk middleware
• Tailwind CSS / Saas
• HTML & CSS