Software Engineer - Backend

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.

About Quantela

We are a technology company that offers outcomes business models. We empower our customers with the right digital infrastructure to deliver greater economic, social, and environmental outcomes for their constituents.

When the company was founded in 2015, we specialized in smart cities technology alone. Today, working with cities and towns; utilities, and public venues, our team of 280+ experts offer a vast array of outcomes business models through technologies like digital advertising, smart lighting, smart traffic, and digitized citizen services.

We pride ourselves on our agility, innovation, and passion to use technology for a higher purpose. Unlike other technology companies, we tailor our offerings (what we can digitize) and the business model (how we partner with our customer to deliver that digitization) to drive measurable impact where our customers need it most. Over the last several months alone, we have served customers to deliver outcomes like increased medical response times to save lives; reduced traffic congestion to keep cities moving and created new revenue streams to tackle societal issues like homelessness.

We are headquartered in Billerica, Massachusetts in the United States with offices across Europe, and Asia.

The company has been recognized with the World Economic Forum’s ‘Technology Pioneers’ award in 2019 and CRN’s IoT Innovation Award in 2020.

For latest news and updates please visit us at www.quantela.com

Overview of the Role

Collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high quality web applications and services by writing clean and modular code

Must have Skills

• 10+ years of experience in leading teams and delivering product, write unit and integration tests to ensure robustness and reliability of web applications and services. 
• Measure and improve performance of microservices.
• Catalyze growth within the team through code reviews and pair programming to maintain high development standards Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
• Expert level of experience in design and development of Web Applications, highly scalable distributed systems.
• Should have experience in development skills using latest technologies including NodeJS, Microservices, Elastic search, Timescale DB, Kafka, Redis, etc.
• Should have exposure in NoSQL and SQL development.
• Comprehensive knowledge of physical and logical data modelling, performance tuning.
• Should possess excellent communication, presentation, and interpersonal skills.
• Ability to work collaboratively and productively with globally dispersed teams
• Build high performance teams and Coach team for successful career growth
• Experience working with relational and non-relational databases, query optimization, and designing schema

Desired Background

Bachelors/Masters degree in Computer Science or Computer Applications

About SATISFIC
Satisfic is focused on the areas of the IT channel marketing. As the channel catalyst, we connect and empower technology suppliers, solution providers and end-users. Headquartered in Singapore and with teams across key countries in APAC, Satisfic leverages its regional service delivery capabilities to help IT channel succeed and grow. 

Please visit our site at http://www.satisfic.com">www.satisfic.com for further details.

What you will be doing:

• SATISFIC is a product-based company; hence will be required to work on product development and support.
• Need to work on the following technologies – Angular, Node JS, Core Web API and PostgreSQL.
• SATISFIC’s product is hosted in AWS. This will provide you with an opportunity to work on the latest cloud technologies
• Coding computer programs.
• Integrate user-facing elements developed by front-end developers with server-side logic.
• Writing reusable, testable, and efficient code and libraries for future use.
• Implementation of security and data protection.
• Timely completion of daily assigned projects as per requirements
• Complete adherence to all metrics and parameters associated with each project through completion of project.
• Effective Time management.
• Mentor and assist Trainee/ Junior Software Engineers to complete assigned tasks.
• Check coding standards and deliverables against each project/product specifications for their own and their junior engineers before delivery.
• Develop module specification documents for internal purpose.
• Lead continuous improvement activities by driving the implementation of process and product quality improvement initiatives.
• Develop innovative solutions that improve the efficiency and reliability of the deliverables and system.

About your experience:

• Total work experience of more than 5 years and minimum 3+ years in development
• Has led a team of developers and coders on Node js
• 3-4 years of proven experience in Node.Js and frameworks available for it.
• Strong proficiency with JavaScript/TypeScript.
• Troubleshoot and debug applications.
• Expertise with Services (REST, SOAP, JSON) and APIs (Service-oriented architectures).
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding fundamental design principles behind a scalable application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes.
• Strong interpersonal and communication skills
• Strong analytical abilities
• Project and time management skills
• Quick learner with a positive attitude

Qualifications:

• Master’s / Bachelor’s degree in Computer Science, Software engineering or related area from a good institute is preferred

Reports to: Lead- Software Engineering

• Manage and improve the engineering process continuously and make sure the team delivers the quality code with zero-waste.
• Should provide technical leadership to major projects, but also build and manage a team of 5-8 top-notch engineers.
• Should do sprint planning and run daily stand-ups and deliver 100% hit rate.
• Maintain the legacy code base and reduce tech debt on a continuous basis.
• Able to handle multiple projects and deliver with stringent timelines without compromising the code quality.
• Work with the product team for roadmap planning and delivery as per the plan.
• Conduct sprint planning & sizing, engineering grooming, daily stand-ups, and deliver with zero spillovers.
• Prepare & publish sprint reports to the leadership team and provide visibility to stakeholders.
• Hire and mentor junior/ senior team and make them engineering champions.
• Mentor the engineering team with your technical skills to write scalable, generic, reusable code.
• Develop and Coach engineers on the team, share engineering pointers, conduct regular 1-1s with the team, and help them advance in their careers.

Requirements

• Having work experience in a Product organization with 7 -10 yrs also in leading a cross-functional engineering team that includes API Development and Backend & Middleware development.
• Should have experience in the continuous delivery process. Ship new features and improvising the code base continuously.
• Should have involved in setting up engineering process.
• Must have experience in microservices and distributed patterns.
• Must have worked on high traffic and throughput application.
• Must have prior experience in handling mid to large-size projects.
• Must have worked on high traffic and throughput application.
• Should have managed and lead the engineering team of Web App and Backend development teams.
• Must-Have Experience in Python programming & Postgressql/ Nosql (MongoDB as a data store.
• Must have experience in modern back-end tech stacks (Django, Postgress, NoSQL) and cloud design & deployment patterns.
• Must be conversant with AWS, Docker/Kubernetes
• Should be good with design patterns and integration patterns.
• Should have knowledge/ experience in concurrent programming & distributed locks.
• Requires solid understanding of technologies and architecture in a highly scalable and available set-up.
• Should have handled multiple epics, themes, and experience of delivering high-quality projects on time.
• Should have managed end to end development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations

• You’ve been building web applications professionally for 4+ years
• You’re proficient in NodeJS, TypeScript, MySQL, and MongoDB
• You possess strong OOP and design pattern knowledge
• Familiar with modern engineering practices: Code Reviews, Continuous Deployment, Automated Testing, etc
• You write understandable, testable code with an eye towards maintainability and experience with TDD (Test Driven Development)
• You have the ability to build RESTful APIs
• Explaining complex technical concepts to designers, support team, and fellow engineers is not a problem for you
• Well versed with the fundamentals of computer science and distributed systems
• Frontend experience; (Good to have) Angular
• Start-up experience, preferably a tech start-up
• Open-Source contributor
• You have experience with other programming languages -- e.g., Python, Ruby, PHP, Go, C, etc.
• Passionate about/experienced with open source and developer tools
• You have a bachelor's degree in Computer Science, Engineering, or related field, or equivalent training, fellowship, or work experience

Qualifications

• BE/ B. Tech/ MSc/MTech
• Candidate should possess the degree from a recognized University/ Institution only