Backend Developer (Python)

Core AI Backend Engineer – LLM Fine-Tuning

You know that moment when you don’t just debug code — you train a model, fine-tune it, and suddenly it understands your domain better than you expected? That’s the kind of magic we’re looking for.

We’re building something that turns chaotic social video data into crystal-clear business intelligence. Not just another API — but AI-backed architecture fine-tuned to our world. Systems that marketing teams thank you for, because they feel the intelligence, not just the infrastructure.

Either you feel the craft when you read this, or you don’t. This isn’t just another backend role. This is where you bring together scalable systems and cutting-edge LLMs to build something the world hasn’t seen before.

Who We Are

We’re a small, global team that ships fast. Every line of code and every model choice affects millions of video analysis requests.

Our engineers don’t just build APIs — they architect solutions, they optimize at scale, and now, they fine-tune models to make AI work in the real world. Our CPTO still codes. Our senior engineers make complexity look effortless. Our backend team sets a standard that others ask how we move so fast.

What We Need

We need someone who’s lived both sides of this life:

• Backend excellence: building high-scale, high-performance systems.
• LLM fine-tuning: hands-on with open-source models, not just calling APIs.

Someone who can sit with a requirement at 2pm and by 6pm not only has endpoints working, but also has a fine-tuned model running behind them — customized to our use case.

Your Craft

• JavaScript/TypeScript & NodeJS as core backend tools.
• Next.js for full-stack where needed.
• Rust when performance is non-negotiable.
• Golang/Python as comfortable tools of choice.
• MySQL/Postgres/Redis — wielded with intention.
• AWS ecosystem — your playground, not your puzzle.
• LLM/AI integration you’ve actually shipped.
• Open-source LLM fine-tuning experience:
• Bringing in open-source models (LLaMA, Mistral, Falcon, etc.).
• Fine-tuning/adapting them for specific domains.
• Optimizing for inference cost, latency, and accuracy.

The Reality

The work is beautifully complex. The scale is real and growing. The problems are the kind that wake you up at 3am with solutions.

If you get your energy from building backend systems and adapting LLMs to make them smarter for real-world use, you’ll probably fall in love with what we do. If you’re only interested in APIs without touching models, this won’t be your thing — and that’s completely okay.

How to Apply

If you’re reading this thinking “finally, a team that actually cares about real AI engineering” — we’d love to see something you’ve built.

Not just a resume. Show us your craft:

• An LLM fine-tuning repo.
• A domain-adapted model you worked on.
• A system design where you combined backend and AI.
• Or even a short write-up or voice note explaining what you’ve fine-tuned.

We’re genuinely excited to see what you’ve done and have a meaningful conversation about whether this could be magic for both of us.

JD-Backend Developer

Job Location: Andheri, Mumbai

Job Summary:

As a Python based Backend developer, you shall be responsible for software development of greenfield projects -an platform

for automated testing using Python as a main language. You will work with a team of developers, collaborating on projects to

create efficient and effective software solutions that meet the needs of clients or end-users in the testing domain. You will

need to have a strong understanding of Python & other languages with knowledge of test automation frameworks and tools/

libraries.

Responsibilities:

• Develop and maintain an automated testing platform using Python programming language.

• Design and implement software solutions that automate the testing process.

• Collaborate with other developers and cross-functional teams to deliver high-quality software solutions.

• Participate in code reviews, debugging, and troubleshooting to improve software quality.

• Stay up-to-date with the latest developments in Python and JavaScript programming language and related

testing frameworks and tools.

• Ensure software is delivered on-time and meets or exceeds customer expectations.

• Develop and maintain documentation related to software development processes and projects.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering or a related field.

• Proven experience as a Back-end Developer.

• Strong understanding of Python & other programming language along with its ecosystem (libraries, frameworks,

tools, etc.).

• Excellent written and verbal communication skills.

Preferences:

• Preference shall be given to local candidates

• Preference shall be given to candidates having experience in greenfield software development projects related

to automated testing.

• Hands-on experience in modern web-development using .Net core, C#, Angular2+, Javascript, HTML5, CSS
• Expertise in developing services (SOAP-WCF and REST)
• Expertise in web development frameworks like ASP.NET MVC
• Good knowledge of database concepts and Microsoft SQL Server
• Solid foundation in computer science, with strong competencies in data structures, design patterns, concurrency, algorithms, and software design
• Experience working in any of the JavaScript frameworks like Ember.js, AngularJS, or ReactJS is a bonus.
• Strong analytical and troubleshooting skills.
• Ability to work as an individual contributor.
• Flair to learn new technologies and thrive in an agile environment.

Fusion Softtech is one of the best offshore development companies based in Ahmedabad, India. We are a bunch of tech-savvy individuals who together as a teamwork to have great expertise in the latest technologies and developments so as to be able to cater the best of the services in the domain of Technology.

We, ensure being the hard core Technoids that our clients around the globe are given the best of our facilities through advancements in technologies which would actually help to make their lives a better place. What we do? We are specialized in creating user-friendly web-designs and applications with a primary goal to be simple and effective for use. We work hand-in-hand with your visions and goals to optimize your business/product. We provide you an end-to-end solution.

• Lead a team, handle client, conduct technical interview, and provide training to new joiners.
• Design, implement, and maintain web application phases.
• Conduct software analysis, programming, testing, and debugging
• Identifying production and non-production application issues
• Transforming requirements into stipulations.
• Should have knowledge of Data structures
• Develop, test, implement and maintain application software
• Recommend changes to improve established software application processes
• Ability to develop logical and high-quality code which meets functional specifications along with technical requirements for reusability, maintainability and scalability when appropriate application code for java programs.
• Ability to perform technical analysis based on requirements to establish architecture approach and create detailed design in support of the requirements.
• Excellent written and verbal communication skills, worked for foreign client would be an added advantage.

Technical Skills:
OOPS, Java, J2EE, Spring MVC, Spring Boot , Spring security and Spring Batch SOAP, REST API, Logging Framework, Hibernate, XML, JEE (Servlets/JSP/JMS), web services experience, microservices, AWS, Kubernetes, ELK Stack, Multithreading, GIT

Key Skills and Experience:

• Min 5+ years of experience in the JAVA/J2EE.
• Experience with RESTFUL Web services.
• Experience in portal & web content management
• Hands-on experience on Javascript frameworks Alloy UI and JQuery.
• Hands-on experience in software development using J2EE Frameworks Spring, Spring Boot, Struts, Hibernate.
• Basic knowledge of Javascript, HTML5, and CSS3.
• Good to have experience or Knowledge in AngularJS, ReactJS, different AWS services like S3, EC2, DynamoDB, Lambda function.
• Exposure in any of the Databases -MySQL/Postgres/Oracle/DB2 etc.

Perks and Benefits:

• Flexible working hours.
• 5 days working
• Fun loving environment with ample scope for flexibility.
• Exposure to work for foreign clients
• Employee friendly leave & Company Policies.
• Best working culture

Open Position for Dot Net Developer Profile:

Job Description:

Require hands-on .NET, SQL experience with working knowledge in MVC and SaaS.

Experience of .NET, C#, SQL Server, MVC, SaaS (Essential)

Experience in IIS, REST, AJAX, XML, open source, cloud computing (Desirable)

Company: Sidqam Technologies Pvt Ltd

Job Location: Noida (Currently Work from home)

Experience: 3 to 8 years

Healthcare IT experience is a definite advantage

Role: Software Developer

Industry Type: Software Product

Functional Area IT Software: - Application Programming, Maintenance

Role Category: Programming & Design

Salary: Upto 15 LPA

Education

UG : B.Sc - Computers, BCA - Computers, B.Tech/B.E. - Computers

PG : M.Tech - Computers, MS/M.Sc(Science) - Computers, MCA - Computers

Company Profile:

We are a team of high-energy, enthusiastic, highly-skilled, and experienced health informaticians, clinicians, technical geeks, and sales and marketing enthusiasts who together want to improve patient experience with the help of technology.

Each person in our team is special because of who he or she is and what we can achieve together. This makes for a special company! Our company, Sidqam Ltd. was established in September 2014 and is headquartered in Manchester, UK. Although a startup, the co-founders of the company have over 15 years of experience each in the healthcare IT industry, working for the National Health Service (NHS) in the UK.

Description:

1. Hands-on backend web and API development experience.

2. Has strong MySQL and Database knowledge.

3. Working experience in building and deploying applications on servers like AWS, etc.

4. Good understanding of architectural patterns (e.g., MVC) is required.

5. Good communication and analytical skills.

6. Experience in building REST APIs in NodeJS and/or TypeScript.

7. Code repositories management in GIT.

8. Provide leadership to the team around new approaches, workflows, and technologies.

9. Experience in client requirement analysis and estimating projects timeline and efforts.