Senior Fullstack Engineer (React, JSON, PostgreSQL)

About the Role:

We are looking for a highly skilled Senior Full Stack Developer who can independently design, develop, integrate, deploy, and maintain modern websites, web applications, e-commerce solutions, customer portals, and internal business platforms.

This role requires end-to-end ownership of projects, from architecture and development through deployment and ongoing support. The ideal candidate is comfortable working across frontend, backend, CMS platforms, APIs, databases, cloud infrastructure, and third-party integrations.

Key Responsibilities:

● Build websites, web applications, customer portals, and digital platforms from scratch.

● Convert designs from Figma into production-ready solutions.

● Architect scalable, secure, and maintainable systems.

● Develop frontend applications, backend services, APIs, and integrations.

● Build headless CMS solutions and multilingual websites.

● Integrate external systems such as CRM, ERP, PIM, payment, marketing, and identity platforms.

● Deploy, maintain, and optimise applications for performance, SEO, accessibility, and security.

● Troubleshoot, enhance, and support existing digital platforms.

Required Technical Skills

Frontend & Backend:

● React.js, Next.js

● JavaScript, TypeScript

● HTML, CSS, SCSS, Tailwind CSS

● REST APIs, GraphQL, Webhooks

● Authentication & Authorization

CMS & E-commerce:

Experience with modern CMS and headless architectures. Knowledge of 2–3 platforms such as:

● WordPress

● Sanity

● Strapi

● Contentful

● Storyblok

● Payload CMS

● Experience with WooCommerce, Shopify and Headless Commerce Solutions

Infrastructure & Data:

● MySQL, PostgreSQL, MongoDB

● AWS, Google Cloud, Vercel

● CI/CD pipelines

● GitHub and modern development workflows

Good to have:

● Experience with Node.js, Express.js

● Experience with AI-assisted development tools such as Cursor, Claude Code, Codex, Lovable, and Figma AI.

● Familiarity with AI APIs such as OpenAI, Claude, or Gemini.

● Experience working in agency environments and managing multiple projects.

● Experience integrating websites and applications with:

i) CRM systems

ii) ERP systems

iii) PIM systems

iv) Payment gateways

v) Marketing automation platforms

vi) Identity providers (SSO/OAuth)

vii) Shipping, booking, inventory, and product feed systems

Examples include HubSpot, Salesforce, SAP, Business Central, Akeneo, Inriver, Stripe, Klarna, Azure AD, Microsoft Graph, and Google APIs.

Soft Skills:

● Strong ownership and problem-solving mindset

● Excellent communication and stakeholder management skills

● Ability to independently estimate, plan, and deliver projects

● Comfortable working in a fast-paced agency environment

● Ability to manage projects from concept to launch as an individual contributor

Ideal Candidate Profile:

● 3+ years of Full Stack Development experience.

● Strong experience with React.js, Next.js, APIs, and modern CMS platforms.

● Proven experience delivering complete projects independently.

● Experience integrating external business systems and building custom applications.

● Strong problem-solving, communication, and project ownership skills.

● Portfolio demonstrating websites, applications, integrations, and digital products.

Benefits:

• Health insurance
• Provident Fund

Work Location: In person

Job Description:

• 2 – 4 years of hands-on experience as a Developer in financial services
• Experience with C#/.NET
• Experience with JavaScript/TypeScript, ReactJS, and AWS Cloud technologies is a plus
• Experience with databases such as MSSQL and MongoDB is a plus
• Familiarity with concepts such as microservices, API, TDD, unit testing, and SDLC
• Knowledge of Stock Loan, Collateral margining, Swaps would be a great advantage
• Strong analytical and problem-solving skills, with the ability to think critically
• Strong written and verbal communication skills
• Experience in stakeholder management across both IT and business sectors

Function: Product

Reports to: Founders

Location: Bangalore

Job type: 6 days WFO

Your Role at Pathfinder

As a Full Stack Developer, you'll be primarily responsible for architecting and developing the platform that will be our interface with the outside world. You'll develop the platform end-to-end such that it is a reflection of who we are, our core capabilities and what we have to offer to the early stage startups. 

What You’ll do

• Own the entire platform end-to-end. Develop and enhance our website and client dashboards.
• Convert UX/UI designs into modular, reusable and scalable components using Next.js and React.js 
• Ensure applications are fully responsive and the visuals adapt to all resolutions, cross-browser and cross-device compatible. 
• Optimize performance (lazy-loading, code-splitting) to reduce load times. 
• Build backend systems, database that support CRUD operations. 
• Develop database schemas, stored procedures, and queries using Notion or any other database systems. 
• Maintain version-control workflows using Git, branch strategies and pull requests.
• Stay abreast of emerging trends and propose improvements to our stack.
• Collaborate with UI/UX designers to translate design mockups and wireframes into responsive, pixel-perfect web applications.

You’ll thrive here if you

• 2-5 years’ hands-on experience in full stack development. 
• Strong proficiency in React.js and Next.js frameworks. 
• Solid understanding of JavaScript (ES6+), TypeScript, HTML5 and CSS3.
• Ability to design the UI from scratch without using pre-existing CSS libraries.
• Proven ability to debug complex issues and optimize performance.
• Excellent communication skills in English, both verbal and written.
• Strong problem-solving aptitude and attention to detail.

Good to Have

• Experience with server-side rendering and static/dynamic site generation.
• Familiarity with CI/CD pipelines (e.g. GitHub Actions, Jenkins) 
• Basic understanding of backend technologies (Node.js, Express) 
• Experience in performance prowling (Lighthouse, Chrome DevTools) 

Working Style

We value speed, precision, and reliability in execution. To thrive here, you’ll bring:

• Operator Mindset – Ability to think from multiple perspectives and execute diligently. 
• Detail Discipline – Exhibit attention to detail, coherence and rigour in work.
• Adaptive Creativity – Look beyond the obvious and bring your individual flavour in your work.
• Builder's Accountability - When something breaks in production, you own it through resolution. You don't pass the bug.
• Documentation Habit – You write code others can read, and you leave context behind you (Example - comments).

SleekSky is a fast-growing engineering studio that partners with venture-backed product teams to ship modern, cloud-native software. We’re hiring a Software Engineer to join one of our health-tech clients and help build a scalable, user-centric platform that’s making a real-world impact—without revealing any confidential project details.

What you’ll do

• Build and ship production-ready React features that feel fast, accessible and polished.
• Design and maintain Node.js / Express APIs that are clean, secure and well-documented.
• Leverage AWS services (EC2, Lambda, Elastic Cache / Redis, load balancers, etc.) to deliver reliable, high-performance solutions.
• Automate CI/CD pipelines with GitHub Actions and uphold strong Git workflows.
• Collaborate in an agile, fully remote team that values code reviews, knowledge-sharing and continuous improvement.
• Champion engineering best practices—testing, monitoring, and infrastructure-as-code—while keeping an eye on new tech that can raise the bar.

What you’ll bring

• 2+ years of hands-on experience in full-stack development.
• Proven expertise with React (hooks, component architecture, state management) and modern JavaScript/TypeScript.
• Solid experience building RESTful services in Node.js with Express (or similar).
• Familiarity with AWS fundamentals (EC2, Lambda, load balancing, caching layers).
• Comfortable with Git, GitHub and automated CI/CD pipelines (e.g., GitHub Actions).
• Self-motivated, proactive and enthusiastic about learning new technologies and sharing knowledge with the team.
• Clear, concise communication skills—vital for an all-remote environment.

Nice-to-haves

• Experience with infrastructure-as-code (Terraform, CloudFormation, CDK).
• Exposure to containerisation (Docker, ECS, EKS) or serverless architecture patterns.
• Prior work in health-tech or other regulated domains.

Why SleekSky?

At SleekSky, you’ll join a culture that puts people first—pair programming, regular knowledge-sharing sessions and a genuine passion for building things the right way. Expect autonomy, trust and a runway to grow your craft alongside enthusiastic peers.

Ready to level up with SleekSky? Submit your résumé on your preferred hiring portal and we’ll be in touch right away.

We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

If you’re also familiar with Agile methodologies, we’d like to meet you.

• Work with 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

• Proven experience as a Full Stack Developer or similar role
• Experience developing desktop and mobile applications
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache), and UI/UX design
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind
• Degree in Computer Science, Statistics, or relevant field

Job Title: Senior Software Engineer (Full Stack . Net)
Employment Type: Full-Time, Permanent
Position Location: Noida, UP
Reports to: Software Development Manager (IT Solutions Delivery)
Qualifications: BE/B.Tech/MCA Degree in Computer Science, Engineering, or a similar relevant field
Total Experience 2+ years
Working Model Work from Office

PRIMARY RESPONSIBILITIES
1. Responsible for the development and maintenance of enterprise-wide web applications using ASP.Net, C#, Angular, Typescript, HTML5, Bootstrap, Angular 7+ and CSS.
2. Responsible for participating in all stages of the development life cycle including requirements analysis, design, development, testing, and implementation.
3. Work with US business stakeholders to ensure requirements are being met
4. Should be adaptable to the US time zone whenever required to have meetings with onshore counterparts.
5. Good experience working on Agile teams and extensive familiarity with all Agile ceremonies.
6. Keeps current with new technologies and software methodologies related to the Microsoft software development platform.

KNOWLEDGE AND SKILL REQUIREMENTS
1. Minimum of 6+ years of experience in application development using C#, .NET, Web API, LINQ, asynchronous programming, AJAX, HTML, and CSS.

2. Minimum of 5+ years of experience developing back-end solutions using Microsoft SQL Server.
3. Minimum of 4+ years of experience with client-side technology (Angular 7+, TypeScript, and RXJS).
4. Experience working with Agile teams and familiarity with all Agile ceremonies and principles
5. Experience working with the following is preferred:
a. Front-end state models
b. GIT for source control
c. OAuth authentication and Azure Libraries
d. test-driven development and mocking frameworks
e. Dependency Injection/Inversion of Control
f. Azure DevOps for Continuous Integration and Continuous Delivery (CI/CD)
g. Microsoft Azure Service Bus
h. .Net Core
i. SQL Server 2016

Job Description:

Experience - 4 to 8 Years

Ideally Applicants have:

Who should not apply for this job

• If you are looking for a 100% hike in your salary but can't commit to what value you will bring on the table
• If you never read books
• If you jump companies every 11-12 months
• If you are not comfortable working on Saturdays
• If you have less than 2 years of experience
• If you have more than 4 years of experience

At this position you will:

• Get solid experience with high-load distributed architecture using REST and High load services.
• Work with automated CI/CD processes, AWS cloud, and VoIP.
• Implement and support microservices based on Elasticsearch, Mongo, and frontend.

Key-Skills Required:

Node.js  | Express  | REST Api   | Javascript  | Redux-Saga |   MongoDB | Web security TLS/SSL | Web Sockets |   Promises & Call-backs | Database & Data structures |   Redis | Elasticseach | React.Js

Key Deliverables: 

• New feature design and implementation, Bug fixing, testing and performance tuning.
• Work on the API and Engines.
• Code deployment on cloud & maintenance of the same.
• Take complete ownership of a product/feature from setup to deployment.
• Time-bound feature delivery & updating.
• Cost-saving using efficient & effective technologies

Role and Responsibilities: 

• Work on back-end (+ frontend integration) development of core scripts using NodeJS / MongoDB /Express /Redux, and Redis.
• Manage Key-value based databases like Redis.
• Active participation in the development of a sophisticated platform as one of the leading developers.
• Document code consistently throughout the development process by listing a description of the program, special instructions, and any changes made in database tables on procedural, modular, and database level.
• Respond promptly and professionally to bug reports. 
• Knowledge of bluebird.js (Promises), Async, etc will be of advantage.
• Coding and programming using Object-Oriented Programming, Data Structure and Algorithms, architecture/ design and build RESTful API.
• Passionate about building products and features and build the product from scratch with thrust on Web security, TLS/SSL, web sockets, etc
• Knows one or more of Wireframes/ Prototyping/ Functional Documentation of business.

4-10 LPA based on experience and on performance in the interview round (70% Fixed - 30% Variable Incentive based on performance/delivery schedule)

(We do ZERO deductions since the salary will be paid from US/Singapore)

• Experience in software / web application architecture, estimates, design and development experience
• Knowledge of formal methods and techniques in software development
• Experience / Knowledge in the following technologies/languages/libraries/frameworks:
  • Primary Experience in C#, NodeJS and React JS.
  • Add on experience in HTML5, CSS, jQuery, JSON, API, Angular JS, AWS / Azure.
  • Experience with Version Control Software (GIT)

Responsibilities

Work with dev teams and manage projects.

Plan with security and data protection as a foreword thought.

Build real-time and near real-time web applications with video/audio streaming.

Provide budgets and cost estimations for projects and server/service costs.

Design and develop client and server-side architectures.

Build front-end apps on React, Vue. You should be an expert at React.

Develop and manage database

Plan and write APIs

Test software to ensure responsive and efficiency

Write technical documentation

Requirement

5+ years experience

Front-end - React, Vue, Angular ( Expert in React and Angular)

Backend - Go-lang, Python, nodeJS, ( Must have working knowledge of atleast any of the two

programming languages)Framework: Django, Express JS

Misc - Linux, AWS, Deployment, Docker( Mandatory)