Fullstack Developer [Java or Python]

Job Summary

We are seeking an experienced Java Drools Developer to design, develop, and maintain rule-based applications using Drools. The ideal candidate will have strong backend development skills and hands-on experience with business rule management systems in enterprise environments.

Key Responsibilities

• Design, develop, and maintain business rules using Drools (BRMS)
• Create and manage Drools Rule Files (DRL), decision tables, and rule flows
• Integrate Drools with Java / Spring Boot applications
• Optimize rule execution, performance, and scalability
• Develop and consume RESTful APIs
• Collaborate with business analysts to translate requirements into rules
• Participate in code reviews and ensure best practices
• Support testing, debugging, and production issues

Required Skills

• Strong hands-on experience in Java
• Solid experience with Drools Rule Engine / BRMS
• Experience with Spring / Spring Boot and microservices architecture
• Knowledge of REST APIs and backend integrations
• Understanding of rule lifecycle management and versioning
• Good problem-solving and analytical skills

Strong Full stack/Backend engineer profile

Mandatory (Experience): Must have 2+ years of hands-on experience as a full stack developer (backend-heavy)

Mandatory (Backend Skills): Must have 1.5+ strong experience in Python, building REST APIs, and microservices-based architectures

Mandatory (Frontend Skills): Must have hands-on experience with modern frontend frameworks (React or Vue) and JavaScript, HTML, and CSS

Mandatory (Database Skills): Must have solid experience working with relational and NoSQL databases such as MySQL, MongoDB, and Redis

Mandatory (Cloud & Infra): Must have hands-on experience with AWS services including EC2, ELB, AutoScaling, S3, RDS, CloudFront, and SNS

Mandatory (DevOps & Infra): Must have working experience with Linux environments, Apache, CI/CD pipelines, and application monitoring

Mandatory (CS Fundamentals): Must have strong fundamentals in Data Structures, Algorithms, OS concepts, and system design

Mandatory (Company) : Product companies (B2B SaaS preferred)

Experience: 3-7 Years

Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)

Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)

Roles and Responsibilities:

• Must have experience in Microservice architecture with the ability to collaborate effectively with team members and build positive working relationships.
• Design and build and deploy APIs to meet business requirements.
• High level of commitment to business satisfaction and agility.
• Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
• Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
• Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
• Work in an agile environment to deliver high-quality solutions.
• Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
• Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)

RazerTech Consulting is mandated to hire a Technical Lead for a US based Tech Company that offers a cloud-based, AI?powered image editing and automation platform for leading brands in ecommerce, fashion, marketplaces & photo studios. The platform helps creatives and marketers produce stunningly consistent imagery and video content at scale.

Role Overview :

Were looking for a hands-on engineering lead to own the delivery of our GenAI-centric product from the backend up to the UI while integrating visual AI pipelines built by ML engineers. Youll be both a builder and a leader : writing clean Java and TypeScript/Node.js, scaling AWS-based systems, mentoring engineers, and making architectural decisions that stand the test of scale. Ideally, youre also familiar with Python for deploying ML pipelines.

(Note : This role requires both technical mastery and leadership skills - we're looking for someone who can write production code, make architectural decisions, and lead a team to success.)

What Youll Do :

• Lead development of the Java, Node.js and Python (FastAPI) backend services on AWS
• Build high-performance image processing pipelines using ImageMagick, SharpJS, and SVG manipulation
• Implement automated visual content generation using Headless Chrome and Puppeteer or similar tools.
• Deploy ML pipelines (built by the ML team) into containerized inference workflows using FastAPI, Docker, and GPU-enabled ECS EC2.
• Deploy and manage services on AWS ECS/Fargate, Lambda, API Gateway, and GPU-powered EC2
• Contribute to React/TypeScript frontend when needed to accelerate product delivery
• Work closely with the founder, product, and UX teams to translate business needs and PRDs into features that drive productmarket fit.
• Make architecture and infrastructure decisions from media processing to task queues to storage
• Own the performance and cost-optimization of our AWS platform
• Hire and mentor junior/mid engineers over time
• Drive technical planning, sprint prioritization, and trade-off decisions

Must have Skills :

• Backend Development (57 years) : Java, Node.js, TypeScript, RESTful API, Docker
• AWS Expertise (5+ years) : AWS Lambda, ECS, EC2, S3, DynamoDB, CloudWatch, IAM, roles
• Image Processing & Media Technologies : ImageMagick, SharpJS, SVG manipulation and programmatic generation, Headless Chrome, Puppeteer
• System Optimization & Middleware (35 years) : AWS cloud cost optimization, Celery, BullMQ, AWS Step Functions
• Frontend Development (23 years) : React, TypeScript, Redux, Context API, CI/CD pipelines.
• System Design & Architecture (46 years) : Event-driven architectures using queues, microservices-based systems, caching strategies (e.g., Redis, CDN edge caching)
• Leadership & Communication (23 years) : Lead engineering teams and drive project delivery

• 1-5 years of experience in Java Development.
• Very good with DSA - Java programming.
• Hands-on experience in working with REST APIs & Web Services.
• Good Database design skills - SQL
• Write well-designed, testable, efficient code.
• Contribute to all phases of the development lifecycle.

Work Location : Bangalore

Work mode : Work from office.

Software Engineer – Tech Lead

- You are your own master.  We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt

- Work with one of India's leading fintech unicorn company

- ESOPs in the company

Requirements

• 6+ yrs of exposure in the art of writing code and solving problems on large scale.
• Should be language agnostic, with extensive and expert programming experience in any one programming language (strong OO skills preferred).
• Deep experience in at least one general programming language. Preferred (Java,Scala, C++)
• A solid foundation in computer science, with strong competencies in data structures,

algorithms, and software design.

• Worked end to end on 2-3 complex projects
• Worked in startup like environment with high levels of ownership and commitment
• Experience in building highly scalable business applications, which involve implementing

large complex business flows and dealing with huge amount of data.

• Extensive experience on working with distributed technologies like Kafka, MongoDb,

Redis/Aerospike, MySQL, AWS etc

• Experience with multi-threading and concurrency programming
• Ability to switch between the technologies and learn new skills on the go.

Roles and responsibilities

Drive discussions to create/improve the product, process and technology

• Build abstractions and contracts with separation of concerns for a larger scope
• Rapid prototyping
• Robust and scalable web-based applications
• Do high-level design with guidance; Functional modelling, break-down of a module
• Thinking platforms & reuse, the open-source contribution will be a plus
• Do incremental changes to architecture: impact analysis of the same
• Do performance tuning and improvements in large scale distributed systems
• Mentor young minds and foster team spirit

As per 5 yrs below is the tech stack that he should know around django:

·         Django forms

·         Django Rest APIs

·         Schedulers/Cron Jobs

·         Customising middlewares

·         Customising permission classes

·         Management commands

·         Fixtures

·         Multiple Environment handling

·         Multiple database integration

·         SQL and NoSQL database integration experience

·         Use of loggers or any logging mechanism

·         Signals

·         Push notifications over IOS/Android devices

·         Email notifications

·         Websockets

·         Unit testing

·         Caching

·         Payment gateway integration

AWS & Deployment Skills:

·         Deployment of Django over EC2 using Nginx or Apache2

·         Configuring the Django to run the services like websockets, celery

·         Using and configuring the RDS

·         Should know how to use S3 buckets

aws-lambda

Responsibilities: 

• Develop backend systems for our first product
• Build reliable, secure and performant backend systems
• Drive test coverage and continuous delivery automation within the team
• Mentor and provide feedback to teammates

Requirements:

• 5+ years of software development experience
• Strong computer science fundamentals
• Deep and wide knowledge of Java ecosystem
• Can write code that is readable, maintainable, secure and performant
• Know the importance of tests and how to approach writing different types of tests
• Good intuition for REST API design
• Deep understanding of relational databases, transactions, entity-relationship modeling
• Comfortable writing highly concurrent systems
• Experienced in using profilers, tuning garbage collection, optimizing SQL queries

Bonus:

• Understanding of domain-driven design concepts like ubiquitous language, bounded contexts, aggregates and domain events
• Know how to use test driven development as a design tool
• Good intuition for the principles underlying object-orientation, particularly encapsulation
• Understand the importance of immutability and of reducing the state-space of objects
• Know how to refactor large codebases safely
• Seek to identify key underlying ideas and use those as building blocks before reaching for shiny new tools