Tech lead - Open Stack

 Senior Full Stack Java Developer

Location: Bangalore/ Remote

Experience: 5+ years

Shift:       U.K Shift (01:30 PM IST to 10:30 PM IST)

Summary

We are seeking a highly skilled Senior Full Stack Java Developer with strong expertise in backend and frontend technologies. The ideal candidate will have hands-on experience in building scalable applications using Java, Spring Boot, JSP, and modern frontend frameworks, along with excellent communication skills to collaborate effectively with global teams.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications.
• Implement best practices and design patterns for clean, maintainable code.
• Work with Spring Boot, JSP, and MySQL to build robust backend services.
• Develop responsive UI components using HTML, CSS, JavaScript, jQuery, and Bootstrap.
• Optimize database queries and ensure efficient performance.
• Collaborate with cross-functional teams to deliver high-quality solutions.
• Participate in code reviews, testing, debugging, and deployment activities.
• Work in a U.K shift to support international clients and project requirements.

Must-Have Skills

• Strong expertise in Java and Spring Boot.
• Hands-on experience with JSP, MySQL, and backend services.
• Proficiency in HTML, CSS, JavaScript, jQuery, and Bootstrap for frontend development.
• Solid understanding of design patterns and software architecture.
• Strong debugging, problem-solving, and performance optimization skills.
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• Excellent communication and collaboration abilities.

What You will do

● Create beautiful software experiences for our clients using design thinking, lean and

agile methodology.

● Work on software products designed from scratch using the latest cutting edge

technologies, platforms and languages such as JAVA, python, Javascript, GoLang and

Scala.

● Work in a dynamic, collaborative, transparent, non-hierarchical culture.

● Work in collaborative, fast-paced and value-driven teams to build innovative customer

experiences for our clients.

● Help to grow the next generation of developers and have a positive impact on the

industry.

Basic Qualifications

● Experience: 4+ years.

● Hands-on development experience with a broad mix of languages such as JAVA, Python,

Javascript etc.

● Server-side development experience mainly in JAVA, (Python and nodeJS can be

considerable)

● UI development experience in ReactJS or AngularJS or PolymerJS or EmberJS or Jquery

etc. are good to have.

● Passion for software engineering and follow the best coding concepts.

● Good to great problem solving and communication skills.

Nice to have Qualifications

● Product and customer-centric mindset.

● Great OO skills, including design patterns.

● Experience with devops, continuous integration & deployment.

● Exposure to big data technologies, Machine Learning and NLP will be a plus.

Benefits

● Competitive salary.

● Work from anywhere.

● Learning and gaining experience rapidly.

● Reimbursement for basic working set up at home.

● Insurance (including a top up insurance for COVID).

Location

Remote - work from anywhere.

We are seeking a skilled MERN Full Stack Developer to join our dynamic team. The ideal candidate will be proficient in both front-end and back-end technologies and possess a passion for developing high-quality web applications. As a MERN Full Stack Developer, you will be responsible for designing, developing, and maintaining robust web applications using the MERN stack.

Responsibilities:

• Collaborate with cross-functional teams to define, design, and ship new features.
• Develop user-facing features using React.js.
• Build reusable components and front-end libraries for future use.
• Design and implement responsive user interfaces.
• Develop and maintain server-side architecture using Node.js and Express.js.
• Integrate data storage solutions using MongoDB.
• Implement RESTful APIs and GraphQL for efficient communication between front-end and back-end systems.
• Optimize applications for maximum speed and scalability.
• Implement security and data protection measures.
• Troubleshoot and debug issues across the entire stack.
• Stay up-to-date with emerging technologies and best practices.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent work experience).
• Proven experience as a Full Stack Developer or similar role.
• Strong proficiency in JavaScript and its modern ES6+ syntax.
• Extensive experience with React.js and its core principles.
• Experience with popular React.js workflows (such as Flux or Redux).
• Solid understanding of server-side development using Node.js and Express.js.
• Experience with NoSQL databases, particularly MongoDB.
• Familiarity with RESTful APIs and GraphQL.
• Knowledge of authentication and authorization mechanisms.
• Experience with version control systems (e.g., Git).
• Excellent communication and collaboration skills.
• Ability to work independently and as part of a team in a fast-paced environment.
• Strong problem-solving skills and attention to detail.

Preferred:

• Experience with cloud platforms (e.g., AWS, Azure, Google Cloud).
• Knowledge of containerization and orchestration technologies (e.g., Docker, Kubernetes).
• Familiarity with CI/CD pipelines.
• Experience with testing frameworks (e.g., Jest, Mocha).
• Understanding of Agile methodologies.

You'll be involved in the entire product lifecycle including the design, development, deployment, and maintenance of new and existing features. You'll also produce detailed specifications. Your code will be written in a timely and scalable way all while ensuring strong optimization.

• Develop in CRM as per the client and customer requirement
• Develop API integration with banks and NBFc to to transfer specific data.
• Well, understanding of Apache/Nginx servers.
• Well-knowledgeable of GIT.
• Experience working on PostgreSQL databases.
• Experience working in an Agile environment.
• Excellent developer who can interact effectively with businesses to understand product requirements and translate them into scalable and flexible Solutions.
• Work well within a team, take initiative and have clear communication. Ability to communicate challenges and solutions clearly within a team of people.
• Worked with AWS, or other major cloud vendors.
• Some exposure in working with databases, preferably postgres, sql.

Synapsica is a growth stage HealthTech startup founded by alumni from IIT Kharagpur, AIIMS New Delhi, and IIM Ahmedabad. We believe healthcare needs to be transparent and objective, while being affordable. Every patient has the right to know exactly what is happening in their bodies and they don’t have to rely on cryptic 2 liners given to them as diagnosis.

Towards this aim, we are building an artificial intelligence enabled cloud based platform to analyze medical images and create 2.0 of advanced radiologist reporting.

We are backed by Y Combinator and other investors from India, US and Japan. We are proud to have GE, AIIMS, the Spinal Kinetics as our partners.

Join us, if you find this as exciting as we do!

Description:

We are looking for a skilled computer programmer who is comfortable with both front and back end programming. Hands-on with UI and server-side is highly desirable.

You will get hands on experience in latest technologies and skills like ReactJS, NodeJS, MongoDB, REST API 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.

Responsibilities:
- Developing front end app components.
- Developing back end apis and middlewares.
- Designing and scaling databases and servers.
- Ensuring responsiveness and cross-platform compatibility of applications.
- Owning and delivering end-to-end products, features, enhancements.

Requirements:
- Degree in Computer Science or related discipline with 3-7 years of exprience.
- Proficiency with fundamental front end languages such as HTML, CSS and JavaScript
- Hands on with Reactjs or similar framework/library.
- Proficiency with server side languages such as Nodejs, Python, PHP.
- Prior experience with at least one no-sql database such as MongoDB.
- Excellent verbal communication skills.
- Good problem solving skills.
- Attention to detail.
- Very high sense of ownership.
- Deep interest and passion for technology

Linkby is a global VC funded software company founded by one of Australia’s top digital publishing entrepreneurs. Our software helps D2C e-commerce brands and publishers work together more effectively and profitably than ever before. We’re currently building our engineering team globally to support our rapid growth. We have a remote-first culture while also having office hubs in Toronto, London & Sydney.

We are looking for a seasoned full-stack engineer to join our team to help build out and manage our entire web infrastructure. You will work as part of a team to develop fast, well-tested, and performant code across various web projects in the adtech vertical.

As a Full Stack Developer, you should be comfortable around both front-end and back-end development (predominantly in Javascript), development frameworks and third-party libraries. You will be responsible for the full software development life cycle, from conception to deployment.

Responsibilities

Design and deployment of database and backend storage systems (eg. relational database, key-value/blob stores) Design and implementation of low-latency, high-availability, and performant applications Design and construction of REST APIs Integrating front-end UI with the constructed APIs “Pixel-perfect” implementation of approved UI and designs Building reusable components and front-end libraries for future use Design and implementation of continuous integration and deployment Test software to ensure responsiveness and efficiency Implementation of security and data protection Integration with third-party services and software

Required Skills & Experience

At least three years’ experience with: Writing HTML, CSS, and JavaScript. Being up on latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum) Back-end development with Node.js Front-end development with Vue.js Database design and management with PostgreSQL Highly proficient with the JavaScript language and its modern ES6+ syntax and features Understanding the nature of asynchronous programming and its quirks and workarounds Highly proficient with Vue.js framework and its core principles such as components, reactivity, and the virtual DOM Experience with development & deployment using containerisation technology (eg. Docker) Experience with cloud infrastrastructure management & deployment on AWS (eg. ECS, Lambda, SQS, SNS, Kinesis) Familiarity with automated JavaScript testing, specifically testing frameworks (eg. Jest or Mocha) Familiarity with CSS preprocessors, bundlers, and associated languages/syntaxes/libraries (eg. Sass, Less, Webpack) Proficient understanding of code versioning tools (eg. Git) Ability to understand business requirements and translate them into technical requirements Open-mindedness and ability to learn new programming languages & tools to best serve the project at hand Appreciation for clean and well documented code Excellent verbal & written communication skills

Preferred Skills & Experience

Experience with React.js & TypeScript will be highly regarded Knowledge of other backend languages such as Golang, Rust, OpenResty Experience with adtech/martech technology Experience with Machine Learning/AI/Data Science Experience working with large scale/high traffic applications Experience with other cloud infrastructure providers (eg. Google Cloud, Azure) We offer flexibility and a strong team culture with additional leave and health benefits for your location. We can't wait to see your application

What are we looking for? :

- Experience in versions 1.9 or 2.4 versions of Magento.

- Excellent understanding of PHP and programming skills

- Understanding of MVC structures, OOPs concepts and Frameworks.

- Experience working with Magento or a similar e-commerce framework.

- Experience working with Linux, Nginx or Apache and Git, REST APIs.

- Experience working with MySQL, Caching and Elastic search.

- Experience in UI and Theme customization in Magento.

- Have knowledge of Performance optimization or best practices of development.

- Have 2-4 years of relevant experience.

What you will be doing?:

- Collaborate with team members and solve new challenges through tech and research.

- Take end-to-end ownership of delivering new modules - analyze customer usage & feedback, review business requirements, develop functionalities and test code.

- Write clean readable code and also follow best practices for efficiency and performance.

- Self learn and work independently, Also collaborate with the team when required.

- Communicate constructively and value user experience and feedback.

.
What can you expect to learn?:

- Full stack development in latest web technologies and frameworks like Angular, Laravel, PHP, PWAs, REST APIs, Elastic search and Web services.

- Develop custom functionalities, plugins and modules in Magento 2.4 to implement business ideas and user requirements.

- Best coding practices and various methodologies to optimize performance and produce the best quality product. Various caching techniques and optimization standards.

- Solve challenges in scalability and handling high amount of user requests using cloud APIs and services.

Perks : 

- Competitive salary

- Flexible work hours

- No dress code

- Group outings

- Supportive work culture

In Brief
Urgent Hiring • Re-location Required
Company Founded 2018 • 1-5 employees
Internet and Technology Startup • Bootstrapped

About us
Based out of Egypt and with presence in the GCC, Quesst Technologies is an early Internet and Tech Startup committed to helping thousands of nationals, residents and travelers in the MENA region, saving them time and effort in seeking reliable and credible knowledge within their communities and localities.

Quesst, the company's flagship platform, is a hyper-local Q&A and knowledge sharing platform that offers the necessary infrastructure for users seeking information to meet, share, engage and interact with one another and with verified subject matter experts.

Who we're looking for
Ideally the successful candidate will have experience in the start-up world and is in a position for a new challenge to take this company to the next level. Someone who is passionate about delivering a scalable and highly performant state-of-the-art cloud-based platforms built with technologies utilizing the JavaScript ecosystem, AI/ML and the latest web technologies to help solve exciting real world problems.

We are looking for an agile and entrepreneurial leader with strong people leadership and technical capability who has a problem-solving and analytical aptitude, excellent communication and presentation skills, is familiar with statistics, has a business acumen, independent, positive can-do attitude, and passion for excellence to the workplace.

Your role and our tech stack
Reporting to the founder, you will be expected to develop, deploy and oversee the execution of the tech strategy, product road-map and operations to ensure alignment with our businesses goals as we grow and scale. You will play a key part in the organisation's success, taking the current MVP and developing it further to move the company through to early stage funding and into profit.

Quesst's is built using React.js [Frontend], Node.js [Backend], PostgreSQL [DB], Amazon EC2 [Application Hosting], Amazon S3 [Media Storage Service], and Amazon SES [Email Sending Service]. You will be responsible for implementing full-stack features and collaborate with other team members to plan each sprint. You’ll be working across the entire system architecture and be responsible for designing, implementing and maintaining restful APIs, micro-services and databases.

Your key responsibilities

• Develop, improve and optimize the structure, quality, and extensibility of current software technologies, codebases and databases
• Prototype ideas to quickly access viability and iterate based on feedback from the team
• Build robust, web-based applications interacting with databases, file-systems and APIs
• Write custom code or integrate open source technologies as needed to find solutions to problems
• Design and build effective APIs; Create servers and databases for functionality
• Design client-side and server-side architecture; Design the data model ensuring scalability
• Accurately translate screen designs into functional front-end code; Develop features and with a mobile responsive design
• Write high-quality, extensible, testable and reusable code and libraries; Conduct code reviews and establishment of best practices
• Participate in planning activities; Estimate accurate stores for new features and design product features
• Help define processes and build tools as needed to scale the solution and the team
• Create and lead the product road-map; Proactively breakdown work, manage development sprints, identify risks and explore solutions
• Test software to ensure responsiveness and efficiency; Troubleshoot, debug and upgrade software; Aggressive problem diagnosis and creative problem solving
• Steer the business on timescales, prioritization and costs on competing development requirements
• Drive rigorous, and weekly product releases and lead required integration efforts with partners and/or third-party software services
• Guide the development in design, architecture and platform choices with strong focus on quality, speed, stability and scalability
• Identify and establish best practices and frameworks keeping in mind parameters of performance, responsiveness, security, maintainability, extensibility, and reuse; Work collaboratively in a lean and agile environment; Write technical documentation
• Recommend and implement new technologies, improvement of existing tech and set-up and future-proofing our technology that can help the company optimize efficiency and productivity and lead edge thinking and knowledge of innovative technologies i.e. AI, ML, blockchain, etc..

Your qualifications

• Minimum of BSc in Computer Science/IT/Electronics/Software Engineering or a comparable degree program
• Proven experience of 2-5 years of full-stack development of web applications; 2+ years building front-end interfaces with React.js & Redux workflows and 2+ years building back-end and maintaining server applications on Node.js, PostgreSQL and designing APIs
• Expert in traditional web-dev stack (HTML5, CSS3, JS); Strong in core JavaScript (ES5, ES6, ESNext, TypeORM and Typescript) and JS object model
• Experience with Linux environments and using the shell and command line terminals (preferred)
• Professional coding experience in object-oriented and scripting languages; Extensive experience building client-side web applications using React
• Proficient with:
  • JavaScript Frameworks (ReactJS/NextJS/Redux) and Node.js Frameworks (Express.js)
  • Client-side MVC frameworks such as NodeJS, React JS, NextJS, Redux, and AngularJS; Knowledge of isomorphic React
  • Configuration of various servers to run web application servers, databases, etc.; Web server technologies like Nginx, NodeJS, Apache, etc.
  • Frontend CSS frameworks like Bootstrap, Material UI and preprocessors like SASS and SCSS/LESS
  • Writing and integrating middleware; Experience with Redux Saga and Thunk
  • Architecture, design, queries of Relational databases (PostgreSQL, MySQL and other RDBMS)
  • Modern JS tooling (NPM, Webpack, Babel, ESLint and Prettier)
  • Developer tools, such as Visual Studio Code
  • Code versioning tools and Git version control systems (Github); Containerization systems (Docker)
  • Strong in data structures, XML technologies, JSON parsing
  • Caching frameworks and mechanisms, work-task queues, transactions and messaging queues (Redis, Memcached, RabbitMQ and others)
  • Building real-time applications using Web Sockets (Socket.io)
  • Web and mobile push notifications and cloud message APIs (GCM, APNS, OneSignal, etc.)
  • Setting up cron jobs and schedule task execution
  • Handling Services, RESTful, APIs, third party libraries and APIs (Google APIs, AWS, Zendesk, etc.)

• Experience with API gateway, distributed infrastructure architectures and applications tuning/profiling; Experience working with microservices
• User authentication and authorization between multiple systems, servers, and environments; Understanding of “session management” in a distributed server environment
• Experience with REST API and web service construction, integration and architecture and working with remote data via REST and JSON
• Knowledge of modern authorization mechanisms, such as JSON Web Token, Authentication and Security Technologies
• Familiarity with building secure systems (OWASP secure coding practices or similar)
• Architect and cloud-deploy applications on AWS and other cloud providers
• Deep understanding of Test-Driven Development (TDD)
• Build and manage end-to-end and UI tests; Experience writing tests (unit, integration, functional, etc.), and using testing frameworks
• Build third-party integrations like Slack, Stripe, Google and supporting their workflow
• Provision DevOps tooling with continuous integration; Build modern Front-end build pipelines and tools
• Contribute to API documentation including API description languages like Swagger; Document and diagram functional flows and architectures
• Experience in building rich PWA applications; Experience in responsive design, cross browser compatibility and website performance
• Understanding of how browsers and DOM work; Understanding and experience with asynchronous processing, partial page refresh, DOM traversal and manipulation
• Expert level using Web Analytics tools (Google Analytics and others); Experience with open source software development
• Experience with localization and internationalization of applications (working with multi-site setups, multi-language, i18n, etc.)

Some desired extras and good to have skills

• Knowledge of cyber-security, malware analysis, threat detection and/or sandboxing technology
• Preferably has knowledge of working in big data (Spark, Kafka, Hadoop) and machine learning ecosystems
• Strong background in security and data analytics and on-premise data experience
• Experience and familiarity with:
  • Architecture, design, queries and aggregation of NoSQL databases (MongoDB, Cassandra and others)
  • Elasticsearch and ELK stack
  • Developing integrations for global OTAs
  • OpenAPI
• Knowledge of multiple backend languages and framework

We offer you

• A unique entrepreneurial opportunity to build something from the ground up and scale it up to a major regionally recognizable brand
• A great learning curve in a collaborative environment with no barriers for initiatives
• Leading compensation package including salary free of local taxes, accommodation allowance for local hire or shared accommodation for international hire, free medical care from company physician, free government healthcare membership, transport allowance, paid airfare to the country of origin, paid leave and end of service according to local labor law.

Your professional career growth opportunities
As you help us grow Quesst, we will help you grow and professionally develop. Joining us at this stage, you will have the opportunity to be part of the core team if you prove you have what it takes and will be given the opportunity to:

• Lead and develop a technical strategy for the company, which involves goal setting, discussing options, and analyzing risks with the management team, CEO and board members
• An opportunity to build and manage a business unit from scratch and scale it up to success at a regional level
• Attract and retain top tech talent, mentor and manage the team as it grows
• Develop and manage KPIs for the tech team and create a challenging work environment

Have we caught your attention?
Send us your application including your resume, salary expectations and earliest starting date.

We’re looking forward to your application!