Backend Developer

About Techjays

At Techjays, we build production-grade AI platforms for global clients. We operate at the intersection of backend engineering, distributed systems, and applied AI — delivering secure, scalable, and enterprise-ready intelligent systems. Our team has built and scaled products at Google, Akamai, NetApp, ADP, Cognizant, and Capgemini.

About the Role

This is not a feature-delivery role. We are looking for an AI Lead who can architect, own, and scale intelligent backend systems end-to-end. You will drive both technical direction and execution — working across LLM integrations, RAG pipelines, agentic AI workflows, and cloud-native backend systems for global clients.

What You'll Do

• Architect and scale backend systems powering AI-driven applications
• Design and implement RAG pipelines, AI agents, and LLM integrations
• Own systems end-to-end — from architecture to deployment and scaling
• Integrate and optimize LLMs (Claude, GPT, Gemini) for real-world production use cases
• Build high-performance distributed systems with observability and cost efficiency
• Lead backend and AI initiatives with strong technical ownership
• Mentor engineers and raise the technical bar across teams
• Collaborate with product and AI teams to deliver AI-native solutions

What We're Looking For

• 6–10 years of strong backend engineering experience
• Hands-on expertise in Python (FastAPI / Django / Flask)
• Deep understanding of Generative AI and LLM-based systems
• Strong experience with RAG pipelines and Vector Databases (Pinecone, FAISS, ChromaDB, Weaviate)
• Solid knowledge of Agentic AI — building autonomous agents and multi-agent workflows
• Proficiency in AWS or GCP in production environments
• Experience with distributed systems, microservices, and system design
• Strong grasp of Data Structures, Algorithms, and Design Patterns
• Familiarity with WebSockets, Git, Linux/Unix, and CI/CD

Nice to Have

• Experience with Anthropic Claude API and Claude Code
• Familiarity with real-time data systems or streaming (Kafka, etc.)
• MLOps and AI system lifecycle experience
• Optimizing AI systems for latency, cost, and scalability

Who You Are

• You think in systems, not just features
• You take full ownership of what you build
• You are comfortable navigating fast-moving, ambiguous environments
• You stay updated with the latest in Generative AI and backend technologies
• Strong communicator who can collaborate across teams and global clients

What We Offer

• Competitive compensation (Best in Industry)
• Work on production-grade AI systems used by global clients
• Exposure to cutting-edge AI tools and frameworks
• A culture that values clarity, integrity, and continuous growth

Core Focus:

• Operate with a full DevOps mindset, owning the software lifecycle from development through production support.
• Participate in Agile ceremonies and global team collaboration, including on-call support.

Mandatory/Strong Technical Skills (6–8+ years of relevant experience required):

• Java: 4.5 to 6.5 years experience
• AWS: Strong knowledge and working experience with Cloud technologies minimum 2 years.
• Kafka: 2 years of Strong knowledge and working experience with data integration technologies
• Databases: Experience with SQL/NoSQL databases (e.g., Postgres, MongoDB).

Other Key Technologies & Practices:

• Python, Spring Boot, and API-based system design.
• Containers/Orchestration (Kubernetes).
• CI/CD tools (Gitlab, Splunk, Datadog).
• Familiarity with Terraform and Airflow.
• Experience in Agile methodology (Jira, Confluence).

What You’ll Do:

• Work closely with the core team to understand their needs and ensure that our products are meeting the needs of the market.
• Designing database structure that are easy to maintain, improves data consistency and are cost effective in terms of disk storage space
• Identify, prioritise and execute tasks in the software development life cycle
• Develop tools and applications by producing clean, efficient code
• Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, code comments and clear code
• Build efficient, testable, and reusable PHP modules

What You’ll Bring

• Bachelor's in Computer Science, Software Engineering or a related field.
• A 5+ years of experience in developing desktop and mobile web applications
• Strong knowledge of core PHP with experience of working with MVC framework such as CodeIgniter & Laravel
• Experience with object-oriented PHP programming
• Experience with third party API integration
• Experience in managing AWS services
• Previous experience creating scalable applications
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)

Experience: 2-5 Years experience

Skills:

Core PHP (Knowledge of functions, Methods, PHP OOPS Concept, Ajax, MySQL, Jquery), Javascript, Basic knowledge of HTML, CSS, MVC Structure 

• 3 years Experience in Ruby on Rails
• Minimum 3 years in MongoDB / PostgreSQL
• Must be from Product based companies   

Responsibilities: 
Developing and maintaining all server-side network components. 
Ensuring optimal performance of the central database and responsiveness to front-end requests. 

Collaborating with front-end developers on the integration of elements. 

Designing back-end services for various business processes.ses. 

Developing high-performance applications by writing testable, reusable, and efficient code. 

Implementing effective security protocols, data protection measures, and storage solutions. 

Running diagnostic tests, repairing defects, and providing technical support. 

Documenting Node.js processes, including database schemas, as well as preparing reports. 

Recommending and implementing improvements to processes and technologies. 

Keeping informed of advancements in the field of Node.js development. 

Skills: 

Bachelor's degree in computer science, information science, or similar. 

At least two years' experience as a Node.js developer. 

Extensive knowledge of JavaScript, web stacks, libraries, and frameworks. 

Knowledge of front-end technologies such as HTML5 and CSS3. 

Superb interpersonal, communication, and collaboration skills. 

Exceptional analytical and problem-solving aptitude. 

Great organizational and time management skills. 

Availability to resolve urgent web application issues outside of business hours. 

Joining: Immediate Joining

No of Vacancy: 1

Designation: PHP Laravel Full-stack Developer

Location- Pune, Maharashtra.

• 1-2 years of experience in related field preferred
• Applies comprehensive knowledge and a thorough understanding of concepts, principles, and technical capabilities to perform varied tasks and projects
• May contribute to the development of policies and procedures
• Works on complex projects of large scope
• Completes work independently receives general guidance on new projects
• Work reviewed for purpose of meeting objectives
• May act as a mentor to less experienced colleagues

Key Skills

• Extensive experience working in PHP.
• Experience with Laravel framework
• Should have a working knowledge of MySQL.
• Experience with Javascript, typescript.
• Must have knowledge of Java frameworks like ViewJS, AngularJS.
• Knowledge of JADE, Pug template.
• Strong debugging skills.
• Strong problem-solving skills.
• Ability to understand and make changes to existing code.

• Using the latest technologies to solve real problems for our customers at a massive scale
• Collaborating closely with other engineers as a valuable member of a cross-functional team
• Sharing your knowledge and building creative solutions while helping the team evolve best practices
• Designing, developing, and deploying backend services with a focus on high availability, low latency, and scalability
• Taking end-to-end responsibility for the services that are owned by your team, including taking part in an on-call rotation

Who you are

• A minimum of B.S. degree in Information Technology or Computer Science or 5+ years in a similar position
• Able to adapt, change and grow quickly as we scale the organization
• Passionate about engineering practices like agile, continuous delivery, test-driven development, traceability, and observability
• Growth mentality is curious and not afraid to be experimental.
• You share your ideas and continuously improve yourself and the team around you
• Solid experience as an Engineer designing, developing and maintaining API driven solutions
• Strong communication skills, high integrity, and great attention to detail

You’ll get to work with:

• Docker and Kubernetes
• Go and/or PHP
• PostgreSQL, Elastic Search, RabbitMQ
• Memcache, Redis
• Microservices architecture
• ELK, Jaeger, Prometheus & Grafana

• Strong knowledge of PHP web frameworks (Core PHP, CodeIgniter, Laravel).
• Should be strong in jQuery.
• Good knowledge of relational databases, version control tools and of developing web services Hands on Experience in Design, Development, Module Handling.
• Candidate should have strong knowledge of Api creation as well as third party Api integration