Backend Java Developer

Position Summary

We are looking for a strong hands-on Software Engineer to develop and maintain Python 3.10 backend services and FastAPI-based Backend for Frontend (BFF) for the CryoFlow platform. You will address the assigned tasks, understand the expected behavior, implement 

clean and well-tested code, and validate your work end to end.

This role suits an engineer who codes well, thinks through problems methodically, learns quickly in an unfamiliar domain, and takes pride in delivering features that work reliably in real product conditions. You will work closely with senior engineers, QA and front-end developers, and will participate in client feedback meetings to understand how your work is used.

Key Responsibilities

• Contribute to the refactor of existing backend capabilities into Python 3.10 services aligned with CryoFlow architecture and deployment practices.

• Develop and maintain REST APIs, Microservices, BFF using FastAPI and Uvicorn, exposing clear APIs for product workflows, integration screens and front-end consumers. 

• Follow team coding standards, branching strategy, review process and API conventions consistently

• Implement backend logic for status updates, validation, data persistence, device/session edge cases, report-generation helpers and user-facing error handling.

• Deliver assigned backlog items and tasks on schedule, with clean, readable and maintainable code.

• Participate in design discussions and reviews; propose simple, practical approaches and incorporate feedback well.

• Write and maintain tests for Python services and integration flows, including API tests, BFF route tests and mocked external calls.

• Debug across backend code, API responses, logs, databases and front-end symptoms with support from senior engineers where needed.

• Work closely with front-end developers on Angular integration and help debug integration issues.

• Collaborate with QA on test scenarios, defect reproduction and verification.

• Participate in client feedback and review meetings; understand feedback, capture action items and follow through.

Qualifications

• Bachelor’s or Master's degree in computer science, Software Engineering, Information Technology, or a related discipline.

Essential Skills 

Technical Expertise

• 5+ years of hands-on software development experience in backend or API-oriented applications.

• Strong Python programming skills, ideally with Python 3.10, in backend services or APIoriented applications.

• Hands-on experience with FastAPI and Uvicorn, including route design, validation, dependency injection patterns, async behaviour and logging.

• Working experience with or exposure to BFF layers that adapt backend/domain services for front-end workflows.

• Good understanding of REST APIs, data validation, error handling and service-toservice calls.

• Awareness of Microservice architecture and the trade-offs involved in service design.

• Strong problem-solving and debugging skills across code, APIs, logs and databases.

• A practical testing mindset: unit tests, API tests, mocks/fixtures and regression checks.

• Very good written and verbal communication skills.

• Ability to work independently on assigned tasks and collaborate effectively within a team.

Preferred Skills

• Familiarity in developing software for scientific instruments, laboratory automation, imaging systems, life sciences, healthcare technologies, medical devices, industrial automation, or other hardware-integrated software platforms.

• Familiarity to Angular v.17 front-end frameworks for integration and debugging.

• Familiarity with Docker, Kubernetes, container orchestration, observability, and production monitoring.

• Experience working in regulated or quality-controlled software development environments

Title: Sr Software Engineer, Backend

Level: L3 

Location: Hyderabad, India

Department: Engineering

Company

Talent Systems, LLC is the leading technology solution provider for casting and auditioning to the entertainment industry. Casting directors and agents worldwide use Talent Systems’ portfolio of products to source and manage talent across film, television, commercials, theater and digital projects, powering an unparalleled, global casting software ecosystem. 

We are headquartered in Los Angeles and operate in the US, Canada, UK, Australia and India. Our portfolio brands include Casting Networks, Spotlight, Cast It Systems, Cast It Talent, Casting Frontier, Staff Me Up, Cast It Reach & Tagmin.

Company Core Values

Job Description

We are looking for a talented and experienced Senior Software Engineer to join our backend team. The ideal candidate will have strong expertise in Node.js and TypeScript, with a solid understanding of backend development best practices. Experience with the AWS ecosystem and working knowledge of Elasticsearch or similar caching/search technologies is essential. Familiarity with Docker, CI/CD pipelines, and PostgreSQL is also required. Knowledge of React.js is a plus.

• Required:
• 5+ years of experience in backend software development.
• Strong proficiency with Node.js and TypeScript.
• Demonstrated experience in architecting and implementing microservice architectures.
• Extensive experience with AWS services such as EC2, S3, Lambda, RDS, etc.
• Hands-on experience with Elasticsearch or similar caching/search technologies.
• Proficient with Docker and container orchestration concepts.
• Expertise in designing, implementing, and maintaining CI/CD pipelines.
• Solid experience with PostgreSQL, including schema design and query optimization.
• Strong problem-solving skills and ability to work effectively in a collaborative environment.
• Excellent communication and teamwork skills.

• Preferred:
• Strong knowledge of testing methodologies, including integration testing frameworks and best practices.
• Experience with CI/CD pipelines and version control systems like Git.
• Familiarity with React.js is a plus but not mandatory.
• Ability to mentor and lead junior developers effectively.

• Soft skills:
• Strong communication and collaboration skills, with the ability to work effectively in cross-functional teams from different cultures and geolocations. 
• Strong sense of urgency and ability to deliver results in a fast-paced environment.
• Exceptional attention to detail and commitment to quality.
• Excellent problem-solving skills and a customer-first mindset.
• Design, and develop scalable and maintainable backend services using Node.js and TypeScript.
• Drive the design and implementation of microservice-based architectures to support our platform’s scalability and reliability.
• Collaborate with frontend engineers, product managers, and other stakeholders to deliver high-quality, robust software solutions.
• Implement and optimize search and caching solutions using Elasticsearch or similar technologies.
• Build, maintain, and optimize containerized applications using Docker.
• Develop and manage CI/CD pipelines to ensure efficient and reliable software delivery.
• Utilize AWS services extensively to deploy, monitor, and scale backend applications.
• Design, optimize, and maintain PostgreSQL databases, including schema design and query performance tuning.
• Lead code reviews, mentor junior engineers, and promote best practices in software engineering and architecture.
• Deliver high-quality features on time by maintaining a balance between speed and precision.
• Participate in sprint planning, daily standups, and code reviews, fostering a culture of continuous improvement and knowledge sharing.

Job Requirements for Java Developer Roles

* Strong hands-on expertise in Java programming.

* In-depth understanding of Java garbage collection mechanisms and their impact on application performance.

* Ability to write clean, efficient, and maintainable code.

* Familiarity with best practices for performance optimization.

* Strong problem-solving skills and attention to detail.

Please note that you will have to attach the following documents after Round 1 that will be needed for the client submission:

1. LWD confirmation
2. PF service history

Mode of work: Hybrid weekly 3 Times.

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology:

• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.

• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.

• Our workforce consists of 550+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.

• Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments.

• Globally present with offices US, India, UK, Australia, Mexico, and Canada.

• We offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

• Wissen Technology has been certified as a Great Place to Work®.

• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Website : www.wissen.com

Job Description – Backend Python Developer(Mid-Level) 

📍 Location: Mumbai/Gurgaon |  Full-time

Backend Python Developer

Role Overview

We are seeking a skilled Backend Python Developer to design, develop, and maintain backend services, APIs, and integrations that power our AI-driven automation solutions.

You will collaborate closely with senior engineers, AI/ML teams, and frontend developers to build scalable, high-performance systems. This role is ideal for professionals with solid backend experience who are eager to deepen their expertise in Python, cloud technologies, and AI-based applications.

Key Responsibilities

• Develop and maintain backend APIs, services, and system integrations using Python
• Collaborate on system design and architecture discussions with senior engineers
• Write clean, scalable, and well-documented code following best practices
• Ensure performance, scalability, and reliability in cloud environments
• Design and manage SQL/NoSQL databases for structured and unstructured data
• Support integration of AI/ML models into production workflows
• Participate in code reviews, unit testing, and debugging
• Contribute to CI/CD pipelines, containerization, and DevOps processes

Required Skills & Qualifications

• 3–5 years of experience in backend development
• Strong proficiency in Python
• Hands-on experience with frameworks such as FastAPI, Flask, or Django
• Experience building and consuming REST APIs (GraphQL is a plus)
• Strong database knowledge: PostgreSQL, MySQL, MongoDB, or Redis
• Familiarity with cloud platforms (AWS, GCP, or Azure)
• Hands-on experience with Docker and Kubernetes
• Strong understanding of OOP, data structures, algorithms, and design patterns

Preferred Skills

• Exposure to AI/ML workflows or a strong interest in learning
• Experience with message brokers such as Kafka, RabbitMQ, or Celery
• Knowledge of asynchronous programming (asyncio, Celery, etc.)
• Experience with unit testing frameworks (PyTest, unittest)
• Understanding of API security and authentication (OAuth2, JWT)

What We Offer

• Competitive compensation with growth opportunities
• Opportunity to work on AI-first automation products used globally
• Mentorship from experienced senior engineers
• Flexible work environment
• Continuous learning support in Python, Cloud, and AI/Automation technologies

About Thrillophilia :

At Thrillophilia, we are building multiple digital travel brands leveraging our proficiency in ecommerce, technology, distribution and marketing. We love to start from “Zeroes”. We plan, build and scale travel marvels from scratch and are absolutely obsessed about creating the best travel experiences for our customers. Our goal is to create 100+ sizable travel brands across the globe by 2027.

Thrillophilia is one of the key brands under 53 Takeoffs umbrella. Today, 100 Million+ travelers use our brands to discover and book diverse travel experiences. With multiple tourism and start-up awards as well as global recognition under our belt, we have scaled ten-fold over the past three years. You might know us from early Thrillophilia’s days. The journey of Thrillophilia is rooted in a passion for travel, technology, and people. It began back in 2011 when the global market was still too young for online travel. Ever since we have grown to become India’s largest online platform for booking affordable travel experiences across 55+ countries. Our offerings are diverse and wholesome, with 24,000+ products and services ranging from tours and activities to luxury and culture stays, powered by exclusive deals and extra effort to bring joy to all our travelers.

Awards we won at Thrillophilia -

• YourStory’s best places to work!
• ISB’s BizQuest.
• Singapore Bash’s best startup.
• London Mayor’s IE20.

About our people - Ah, let's talk a bit about the folks over at Thrillophilia, where hard work and ownership run rampant, and problem-solving is the name of the game. The team here doesn't just punch the clock and head home. They're in it to win it, do the best work of their life by taking ownership of their work and striving for excellence in everything they do.

Whether it's finding the best hidden gem in the world or developing tech solutions, there is a deep ownership and accountability and Remarkable is one word to summarize their work!

They're a fun-loving bunch, they party really hard and share a passion for travel, and they're not afraid to let loose and enjoy the journey. From backpacking through Southeast Asia to exploring the hidden corners of their own cities, these adventure seekers somehow always manage to take out time to party and travel the world.

So, if you're looking for some inspiration, just take a look at the people of Thrillophilia. They're living proof that with hard work, ownership, and a vision to solve problems at scale, anything is possible.

We are seeking a highly skilled and passionate Senior Software Developer with expertise in Ruby on Rails and React.js to join our dynamic and innovative tech team. As a Senior Software Developer, you will play a crucial role in designing, developing, and implementing high-quality software solutions that drive the success of our travel platform. You will work closely with cross-functional teams, including product development, UI/UX design, and quality assurance, to ensure seamless integration of features and deliver exceptional user experiences.

Responsibilities:

- Develop and maintain robust, scalable, and efficient web applications using Ruby on Rails and React.js.

- Collaborate with product managers, UI/UX designers, and fellow developers to understand requirements, translate them into technical solutions, and deliver high-quality software products.

- Write clean, maintainable, and well-documented code following industry best practices and coding standards.

- Conduct thorough code reviews, provide constructive feedback, and mentor junior developers to enhance team productivity and code quality.

- Optimize application performance and ensure efficient resource utilization by conducting performance testing, monitoring, and troubleshooting.

- Stay updated with the latest industry trends, tools, and technologies related to Ruby on Rails and React.js, and share knowledge with the team.

- Collaborate with the DevOps team to deploy and maintain applications in cloud-based environments.

- Contribute to the continuous improvement of development processes, tools, and methodologies.

Requirements:

- Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).

- Proven experience as a Senior Software Developer / Module Lead, preferably with a focus on Ruby on Rails and React.js. (At least 4+ years of experience)

- Strong expertise in Ruby on Rails and React.js, with a solid understanding of their core principles, frameworks, and ecosystem.

- Proficient in front-end development technologies such as HTML, CSS, and JavaScript.

- Experience with database systems, including SQL and NoSQL databases especially PostgresSQL.

- Familiarity with version control systems, such as Git.

- Ability to write efficient, maintainable, and testable code, with a strong emphasis on software quality and best practices.

- Strong problem-solving and analytical skills, with the ability to tackle complex technical challenges and provide innovative solutions.

- Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment.

- Self-motivated and detail-oriented, with a passion for continuous learning and staying updated with emerging technologies.

If you are passionate about building revolutionary travel products, thrive in a collaborative and innovative environment, and are ready to take on exciting challenges, we would love to hear from you.

Apply now and embark on a transformative journey to redefine the future of travel!

Title: Python Developer

Job Type: Full-time

Responsibilities:

• Developing and maintaining Python-based applications.
• Writing clean, maintainable, and efficient code.
• Integrating user-facing elements developed by front-end developers with server-side logic.
• Identifying and fixing bottlenecks and bugs.
• Participating in code reviews.
• Collaborating with cross-functional teams to design, develop and implement new features.

Requirements:

• Bachelor's or Master's degree in Computer Science or a related field.
• Strong proficiency in Python and its frameworks such as Django or Flask.
• Understanding of fundamental design principles behind a scalable application.
• Familiarity with code versioning tools such as Git.
• Knowledge of databases such as MySQL, PostgreSQL or MongoDB.
• Good problem-solving skills and attention to detail.
• Excellent communication and collaboration skills.

Job Description:

1) Good experience in Java

2) Hands-on experience in Spring boot

3) Hands-on experience in Microservices