Freelance full stack developer

Technical Lead – Full Stack 

Overview 

We are seeking a high-caliber Tech Lead – Full Stack to join our Digital Twin Platform and Simulation team. In this role, you will translate high-level architectural visions into robust, executable low-level designs (LLD). You will be the technical anchor for the squad by providing deep technical guidance and maintaining rigorous standards you will enable the team to deliver scalable interfaces and services that power our digital twin ecosystem. 

Our Core Full Stack Stack 

Front-End Engineering 

• React + TypeScript (with Next.js), ShadCN/UI, Tailwind CSS for building complex, state-heavy interactive dashboards.
• JavaScript (ES6+) and TypeScript for type-safe management of simulation data 
• State management (Redux/Zustand) optimized for high-frequency data updates 

·      Experience in ESRI ArcGIS Map usage in UI is a big plus.

Back-End & Microservices 

• Java and Spring Boot for building high-scale, resilient microservices 
• REST APIs for seamless communication between services and front-end consumers 
• Microservices architecture and system integration patterns 
• Experience designing, building, and integrating RESTful or GraphQL APIs, Protobuf with gRPC and gRPC-Web  

Engineering Excellence 

• GitHub for version control and rigorous Code Reviews 
• CI/CD pipelines, Docker, and Kubernetes for cloud-native deployment 

Key Responsibilities 

• Low-Level Design (LLD): Convert high-level architectural blueprints into detailed technical designs, including class diagrams, sequence diagrams, and API specifications. 
• Technical Mentoring: Lead and coach the engineering team through pair programming, technical 1-on-1s, and hands-on guidance to elevate overall team competency. 
• Standards Enforcement: Ensure all code adheres to the defined engineering standards, SOLID principles, and design patterns established by the Architects. 
• Code Quality & Review: Conduct comprehensive code reviews to maintain high quality, ensuring the team delivers clean, testable, and maintainable code. 
• Technical Anchoring: Serve as the "go-to" expert for the squad to resolve complex technical blockers and provide clarity on implementation details. 
• Hands-on Development: Direct implementation of critical and complex modules, setting the benchmark for performance and reliability. 
• System Integration: Oversee the technical execution of integrations between full-stack applications and core data layers (Databricks/Neo4j). 
• Delivery Governance: Ensure the squad meets sprint objectives by maintaining a high standard of execution and managing technical debt effectively. 

Preferred Qualifications 

• 8 to 10 years of professional experience in full-stack software development. 
• Proven track record in a Tech Lead capacity, with strong experience in creating Low-Level Designs. 
• Expert-level proficiency in Java, Spring Boot, and React. 
• Deep understanding of Microservices architecture and RESTful API design. 
• Familiarity with ShadCN/UI familiarity along with Material UI, Storybook, and/or similar tools
• Demonstrated ability to mentor engineering teams and drive technical excellence in an Agile environment. 
• Experience working in the India tech region, preferably within high-growth product engineering teams.

Highly Desirable 

• Experience building platforms for Digital Twin, IoT, or Simulation environments. 
• Familiarity with visualizing complex networks or real-time operational data. 
• Knowledge of performance tuning for both front-end rendering and back-end processing. 
• Experience leading teams in an Agile/Scrum environment. 
• Exposure to industrial domains such as Manufacturing, Logistics, or Transportation is a plus. 

Location: Hyderabad, Telangana 

Department: Engineering 

Employment Type: Full-Time 

Role- Sr Software Developer (Fullstack)

Location- Gurgaon/ Bangalore

Mode- Hybrid

Job Description: Sr Software Developer (Golang expertise) – 5+ years 

Role Summary:-

We are seeking an experienced Senior Engineer with strong expertise in Golang and cloud-based web applications. The ideal candidate will work across multiple backend services, contribute to architectural decisions, ensure quality through best practices, and collaborate effectively with cross-functional teams. 

Key Responsibilities:- 

• Design, develop, and maintain backend services using Golang. 

• Work across multiple Golang applications and microservices. 

• Have good understanding of internal enterprise services such as SSO, authorization, and user management. 

• Collaborate with cloud engineering teams to build and manage applications on AWS or Azure. 

• Follow and enforce backend development best practices including CI/CD, coding guidelines, and code reviews. 

• Use tools like SonarQube for static and dynamic code analysis. 

• Write high‑quality unit tests and maintain test coverage. 

• Document system designs, APIs, and technical workflows. 

• Mentor junior team members and contribute to overall team maturity.

Required Skills:-

• Strong, hands‑on experience with Golang across multiple real‑world projects.

• Good experience with dell cloud 

• Good understanding of cloud services (AWS or Azure) for web application development. 

• Knowledge of SSO, authorization services, and internal service integrations. 

• Excellent communication and collaboration skills. 

• Experience with CI/CD pipelines, coding standards, and automated testing. 

• Familiarity with code quality tools such as SonarQube. 

• Strong documentation skills. 

Good-to-Have Skills:-

• Knowledge of Python or JavaScript. 

• Understanding of frontend technologies (react.js). 

• Experience mentoring or guiding team members.

Note- We are looking out immediate joiners.

Description 

Our Software Architects are the strategic thinkers and technical leaders of. They design, validate, and guide the delivery of enterprise-grade systems that balance innovation, performance, scalability, and cost efficiency. 

At Sarvika, Software Architects work at the intersection of business strategy and technical execution. They collaborate across engineering, product, and design teams to define architecture blueprints, select technologies, and ensure systems evolve in alignment with customer goals. Architects are hands-on, often prototyping solutions and coaching teams, while also trusted to influence executives on technical direction. Here’s what you should know if you want to be a Software Architect at Sarvika. 

Requirements 

The ideal person 

● Proven track record in architecting and delivering large-scale, distributed software systems. 

● Expertise in modern architectural patterns: microservices, event-driven systems, composable commerce, headless architectures. 

● Ability to translate business strategy into actionable technical roadmaps and system designs. 

● Strong leadership skills: guiding engineering teams, mentoring individuals, and setting technical standards. 

● Excellent stakeholder management and communication skills, from engineers to C level. 

● Commitment to designing systems that are secure, performant, and cost-efficient.

Desirable Skills 

● Deep experience with multiple programming languages and frameworks (e.g., ● JavaScript/TypeScript, Node.js, React, Java, .NET, Python). 

● Strong knowledge of cloud-native architectures (AWS, GCP, Azure) and containerisation (Docker, Kubernetes). 

● Experience with data platforms, integration patterns, and API-first design (REST, GraphQL, gRPC). 

● Familiarity with CI/CD, DevOps, and Infrastructure-as-Code practices. ● Understanding of security standards, compliance (GDPR, SOC2), and enterprise IT constraints. 

● Ability to design for scalability across global markets and multi-tenant environments. ● Strong knowledge of design systems and front-end frameworks, ensuring alignment between presentation and infrastructure. 

● Experience leading architectural reviews, trade-off analysis, and decision records. ● Ability to mentor teams and establish communities of practice around architecture. ● Awareness of emerging technologies (AI, serverless, edge computing) and their practical application. 

On any given day you might 

● Define architecture blueprints and technical roadmaps for enterprise projects. ● Partner with product owners and business stakeholders to align architecture with strategic goals. 

● Make key technology selection decisions, balancing innovation with long-term maintainability. 

● Review system designs, ensuring alignment with principles of security, scalability, and performance. 

● Support engineering teams with hands-on prototyping and technical problem solving. ● Facilitate architectural reviews and communicate trade-offs to both technical and non-technical audiences. 

● Collaborate with designers to ensure UI/UX and architecture integrate seamlessly. ● Influence enterprise customers, helping them modernise platforms and adopt composable, headless, or cloud-native approaches. 

● Establish coding standards, architectural patterns, and governance processes. ● Share thought leadership internally and externally, positioning Sarvika as a trusted Advisor.

You bring 

● 7+ years of software development and architecture experience. 

● Expertise in designing cloud-native, distributed systems. 

● Proven success in leading technical decisions across multi-team programmes. ● Strong cross-functional collaboration and customer-facing skills. 

● Advanced understanding of system integration, security, and performance optimisation. 

● Familiarity with enterprise-scale delivery: migration projects, composable commerce, API ecosystems. 

● Advanced English, able to communicate at both executive and engineering levels. ● (Bonus) Experience contributing to open-source, publishing architectural thought pieces, or speaking at conferences.

Shift: UK Shift

Job Summary:

We are looking for an experienced MERN Project Manager to lead and oversee the development and maintenance of our MERN (MongoDB, Express.js, React.js, Node.js) stack projects. The ideal candidate will have a strong technical background, excellent communication skills, and the ability to manage cross-functional teams to deliver high-quality software solutions on time and within budget.

Key Responsibilities:

1. Project Planning & Execution:

• Define project scope, goals, and deliverables in collaboration with stakeholders.
• Develop detailed project plans, timelines, and milestones.
• Monitor project progress, identify risks, and implement mitigation strategies.

1. Team Management:

• Lead, mentor, and manage the development team, ensuring alignment with project goals.
• Allocate tasks and responsibilities among team members based on expertise and project needs.
• Conduct regular team meetings to track progress and address challenges.

1. Technical Oversight:

• Provide technical guidance and ensure best practices in the MERN stack development process.
• Review code and ensure adherence to coding standards, scalability, and performance optimization.
• Collaborate with DevOps for CI/CD pipeline implementation and AWS/EC2 infrastructure management.

1. Stakeholder Communication:

• Act as the primary point of contact for clients and stakeholders.
• Provide regular updates on project status, milestones, and potential roadblocks.
• Gather and translate business requirements into technical specifications.

1. Quality Assurance:

• Ensure proper testing and debugging practices are followed.
• Facilitate UAT (User Acceptance Testing) and incorporate feedback into the development cycle.
• Oversee deployment and post-deployment support.

1. Documentation & Reporting:

• Maintain comprehensive project documentation, including requirements, design, and progress reports.
• Prepare and deliver project status reports to management and stakeholders.

Required Skills & Qualifications:

 Educational Background:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

 Technical Skills:

• Strong hands-on experience with MongoDB, Express.js, React.js, and Node.js.
• Familiarity with DevOps practices, especially in AWS EC2 environments.
• Proficiency in Git and version control systems.
• Experience with Agile/Scrum methodologies.

 Soft Skills:

• Excellent problem-solving and decision-making abilities.
• Strong leadership and team management skills.
• Exceptional verbal and written communication skills.

 Preferred Qualifications:

• Certifications in project management (PMP, Agile, or Scrum Master).
• Experience with additional cloud platforms or DevOps tools.
• Prior experience managing MERN stack projects at scale.

1. Building REST APIs using Node.js, Express, and MongoDB
2. Working on Flutter application development using various advanced strategies like state management, API integrations, and scalable databases
3. Working with Socket.io library for Flutter and Node.js product development
4. Learning and developing the cryptographic functions for product security
5. Managing product workloads on public/private cloud - we are currently on AWS & also planning to be on GCP/Azure (our platform would also be available as on-premise deployment, you will handle these deployments)
6. Develop API based architecture in order to ensure the business growth and integration-al capabilities of the product
7. Work on using GIT and CI-CD for product version control and continuous delivery

Job Description:

We are looking for a skilled and ambitious Senior Full-Stack Developer (React/React-Native, PHP, and NodeJs )to join our development team. In this role, you will be responsible for developing and implementing applications using React.js, NodeJS, PHP, and its libraries such as Redux, Redux-Saga, ExpressJs, Laravel. You will also be responsible for profiling and improving performance and documenting the codebase. To ensure success as a Full Stack developer, you should have in-depth knowledge of Javascript (ES6 or above), NodeJS, PHP 7.x, MySQL and its concepts, excellent coding skills, and a good understanding of progressive web applications.

Full Stack Developer Responsibilities:

• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Understand the past code and improve when needed.
• Develop components in a scalar way so, can be used again.
• Developing and implementing front-end + back-end architecture to support user interface concepts.
• Monitoring and improving application performance.
• Documenting application changes and developing updates.

Full Stack Developer Requirements:

• In-depth knowledge of Javascript, CSS, and HTML.
• In-depth knowledge of REACT libraries like Webpack, Redux, Redux-Saga and React Router.
• In-depth knowledge of NodeJs, ExpressJs, PHP, Laravel Framework
• Experience with User interface design and development.
• Experience with browser-based debugging and performance testing software
• Excellent troubleshooting skills.
• Build high-quality user interfaces from design mockups.
• Good project management skills and communication skills
• Collaborate with Product, Design, and other developers to understand requirements.
• Write tests to ensure high-grade code.
• Adhere to code style and code quality standards.
• Provide code review feedback to teammates.
• Good understanding of AWS infrastructure.

Our software developer for full stack role would be required to constantly work on building new features as per discussion with the product team.

Our front end code base is in Angular while the backend code base is in Python-Django.

Pre-requisites

• Expert level knowledge of Angular and Javascript
• Intermediate level knowledge of Python

Responsibilities

• Build new products / features from scratch
• Work on implementing and maintaing ticket booking flow on site
• Work on making existing features faster and better
• Work on reducing response time for all our apis

Qualifications & Skills

• Bachelor's degree or equivalent experience
• 1-6 years' experience in full stack development
• Hands-on with angular, python, django, mysql, mongodb, redis, rest-framework
• Ability to multi-task
• Strong verbal, written, and organizational skills
• Good analytical capabilities
• Mobile ecosystem knowledge

Job description

Roles and responsibilities:

Platon is looking for a minimum 2 - 3 years experienced and motivated Full Stack professional with SaaS to be an integral part of Web Apps team. The team is an essential part of the Technology team at Platon and works on solving technical challenges related to processing, visualization and presentation of continually scaling data in an easily accessible manner on the Platon platform.

You should have hands on experience with PHP, Laravel, Java, COREJAVA, J2EE, javascript, Bootstrap, HTML, CSS, MYSQL/Oracle, MongoDB, Redis, AWS, Vuejs, Source code management (GitHub/Bitbucket),PWA etc. This role is ideal for you if you have a background in Full Stack development and are looking for the next level of career growth in a fast paced, learning based and merit driven work environment. mind Good to have experience in Native App development

What we are looking for:

• Strong coding and design skills
• Good command over Data Structures & Algorithms
• The ability to produce bug-free and production grade code
• Skills we consider PHP, Laravel, Java, COREJAVA, J2EE, javascript, Bootstrap, HTML, CSS, MYSQL/Oracle, MongoDB, Redis, AWS, Vuejs, Source code management (GitHub/Bitbucket),PWA.

• To Develop Enterprise Applications using PHP, Laravel, Javascript, MySQL, PWA.
• Help in Design of Web Application
• Interaction with Clients
• Quality & Timely Delivery
• Helping Team Members on Technical issue

• Extensive experience in development using PHP, Laravel, Vue.js, MySQL and Javascript
• Eye for Detail & Quality Delivery
• Ability to work in a team environment
• Must meet deadline
• Knowledge of CRM/ERP
• Mind Good to have experience in Android application development, COREJAVA, J2EE, React.js, js, PWA.