Senior Technology Lead (Full Stack - React-Native, MERN)

Big Picture (The Opportunity) : 

Do you take pride in your web development ability? Would you like to use your skills in an energetic atmosphere? Are you dedicated to the craft, write code that they are proud of and can hit the ground running , you’re in the right place.

What do we want from you ? (Our Expectations) : 

• To manage our back-end services and ensure a seamless interchange of data.
• You will be responsible for developing and coding all server-side logic and also to maintain the central database and respond to requests from front-end developers. 

What are you required to do ? (Your Responsibilities) 

• Writing back-end code and building efficient modules.
• Produce detailed specifications
• Developing back-end portals with an optimized database.
• Integrating data storage solutions.
• Responding to integration requests from front-end developers.
• Updating and altering application features to enhance performance.
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle
• Develop and deploy new features to facilitate related procedures and tools if necessary
• Work closely with the IT team in completing projects
• Troubleshoot and fix any issues relating to PHP programs
• Create scripts to facilitate client systems to meet performance and objectives
• Test and develop software for client applications
• Create documentation for software created
• Utilize source debuggers and write or modify client software
• Produce results effectively and within the deadlines set 

Knowmax is a global B2B SaaS platform built to elevate customer experience through intelligent knowledge management. We enable customer-facing teams to access the right answers instantly—across contact centers, digital channels, and field support—driving consistency, efficiency, and satisfaction at scale.

Preferred Profile: Candidates with prior experience working on product development in a startup environment.

Core Backend Skills

• Node.js Mastery
• Deep understanding of event loop, async patterns (Promises, async/await).
• Experience with frameworks like Express, NestJS, Fastify.
• Writing scalable APIs (REST), middleware, and modular code.
• Database Expertise
• SQL/Postgres – schema design, complex joins, indexing, query optimization.
• Knowledge of transactions, isolation levels, and migrations.
• Basic familiarity with ORMs (Sequelize/TypeORM/Prisma) and raw queries.
• Architecture & Design
• Ability to design backend systems
• Good understanding of API versioning, caching strategies (Redis).

Frontend (Average Skill Expected)

• Comfortable with React (or Nuxt/Vue) for building and maintaining UIs.
• Basic understanding of state management (Redux, Vuex, Pinia).
• Familiarity with component-based architecture and UI libraries (Material UI, Tailwind).
• Can debug UI issues but not expected to be a design/UX expert.

Other Expectations

• Code Quality – Writing unit tests (Jest/Mocha), code reviews, and maintaining clean architecture.
• Problem-Solving – Strong data structures and algorithmic skills (not as intense as SD3/Architect).
• Collaboration – Able to mentor juniors, break down tasks, and work closely with product and QA.
• Performance & Security – Understands security best practices (OWASP) and performance profiling.

Job Description

We are seeking a skilled Full-stack developer. As a Full-stack developer, you will collaborate with an international cross-functional teams to design, develop, and deploy high-quality software solution.

Responsibilities:

Design, develop, and maintain the application.

Write clean, efficient, and reusable code.

Implement new features and functionality based on business requirements.

Participate in system and application architecture discussions.

Create technical designs and specifications for new features or enhancements.

Write and execute unit tests to ensure code quality.

Debug and resolve technical issues and software defects.

Conduct code reviews to ensure adherence to best practices.

Identify and fix vulnerabilities to ensure application integrity.

Working with the product owner to ensure seamless integration of user-facing elements.

Collaborating with DevOps teams for deployment and scaling.

Requirements:

Bachelor’s degree in computer science or information technology, or a related field.

Proven experience as a skilled Full-stack developer. Experience in Insurance domain is appreciated.

Excellent problem-solving and debugging skills.

Strong communication and collaboration abilities to work effectively in a team environment.

Strong experience with Spring Boot 3, Java 17 or newer and Maven.

Skills & Requirements

Angular 18+, GitHub, IntellJ IDEA, Java 11+, Jest, Kubernetes, Maven, Mockito, NDBX/ng-aquila, NGRX, Spring Boot, State Management, Typescript, Playwright, PostgreSQL, Sonar, Swagger, AWS, Camunda, Dynatrace, Jenkins, Kafka, NGXS, Signals, Taly.

Technical knowledge

• Design and implement software components using up-to-date technologies and best practices.
• Comprehensive understanding of the REST architecture.
• Strong working experience in Angular,HTML5, CSS3
• Strong working experience in Container Orchestration Management on-premise and public cloud (Docker, Kubernetes or similar)
• Overall understanding of the Service Oriented Architecture
• Experience with widely used design patterns.
• Should possess prior experience in building distributed multi-tier applications with single sign-on.
• Continuous Integration (CI) and Automated Deployment on AWS/Azure
• Static and dynamic code quality analysis
• Should understand the dynamics of the full-stack development and guide junior team members.
• Experience in developing enterprise-scale software platforms
• Should have hands-on experience in managing releases.
• Build applications using Azure Services and deploy them on Azure Infrastructure.

At BigRadar we automated consumer interactions using Chatbots. You'll be working in the backend to create services to make it happens. Obviously, we're looking for self-driven individuals who're proud of their code and do care about no more spaces.

Requirements:

• At least 3 years experience.
• Writing HTML, CSS, and JavaScript.
• Expertise in front end framework like Angular (preferred) or React.
• Expertise in back-end programming language JavaScript, TypeScript, NodeJs.
• Working with RDBMS such as Postgres or MySQL.
• Experience implementing testing platforms and unit tests.
• Proficiency with Git.
• Appreciation for clean and well-documented code.
• Understanding of microservices and distributed systems.
• Experience working with AWS infrastructure.
• Docker or Kubernetes.
• Message queues such as Kafka.
• CI/ CD tools such as Jenkins.

BigRadar is an early-stage SaaS company which delivers great customer satisfaction. Our monthly Monthly revenue rate is increasing rapidly which create great career opportunities for people working with us.

Since, our primary customer base in London, UK. We will soon launch our office there!