PHP Developer

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 Astra:

Astra is a cyber security SaaS company that makes otherwise chaotic pentests a breeze with its one of a kind Pentest Platform. Astra's continuous vulnerability scanner emulates hacker behavior to scan applications for 9300+ security tests. CTOs & CISOs love Astra because it helps them fix vulnerabilities in record time and move from DevOps to DevSecOps with Astra's CI/CD integrations.

Astra is loved by 650+ companies across the globe. In 2023 Astra uncovered 2 million+ vulnerabilities for its customers, saving customers $69M+ in potential losses due to security vulnerabilities. 

We've been awarded by the President of France Mr. François Hollande at the La French Tech program and Prime Minister of India Shri Narendra Modi at the Global Conference on Cyber Security. Loom, MamaEarth, Muthoot Finance, Canara Robeco, ScripBox etc. are a few of Astra’s customers.

Role Overview:

As an SDE 2 back-end engineer you will be responsible for leading the development and maintenance of the platform/dashboard backend. This would involve architecting, developing & maintaining RESTful services for vulnerability management, scan orchestration, inventory management and platform features such as on-boarding, trust centers, certificates, payment integrations, vulnerability ingestion, authentication etc. 

You should have a strong background in backend programming (Symfony preferred, or Laravel) and have experience with an event driven, async & distributed architecture. 

During the first 6 months of your role, you will be involved in the 0->1 journey of two of our upcoming products in our platform along with the respective product owners.

Love solving hard problems? Want to build high impact products rooted in first principles? Is coding your poetry? Join us in shaping the future of cyber security.

Roles & Responsibilities:

• Lead the design, development, and maintenance of backend services and APIs using Symfony PHP framework. What you create is also what you own.
• Collaborate with front-end developers to integrate user-facing elements with server-side logic.
• Collaborate with scanner teams to orchestrate scans, ingest vulnerabilities, configure scanners etc.
• Write clean, well-documented, and efficient code.
• Optimize and refactor existing code to improve performance and reliability.
• Implement security and data protection measures.
• Triage, troubleshoot and upgrade existing systems.
• Ship code to production multiple times a day/week.
• Ensure timely delivery of the features.
• Test your own features, and write test cases for continuous automated testing.
• Troubleshoot complex issues, debug, and upgrade existing systems.
• Mentor junior engineers and lead code reviews, promoting best practices and high standards.
• Drive architectural decisions and technical strategy for backend systems.

What we are looking for:

• 4-6 years experience in a similar role or similar working experience.
• Advanced proficiency in PHP backend programming. Symfony preferred, or Laravel.
• Strong understanding of system design, software architecture principles and performance optimization.
• Experience with an event driven (subscribers/listeners), async (MessageHandlers & job queues) & distributed (load-balanced) architecture.
• Experience with PostgreSQL database and data modeling.
• Understanding of concepts such as Dependency Injection, ORM, data validation, error handling etc.
• Experience with Docker, Kubernetes, GitHub Actions (good to have).
• Experience with Agile methodologies.
• Excellent problem-solving skills and the ability to think strategically about technical solutions.
• Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional remote teams.
• Demonstrated track record of delivering high-quality software products on schedule.
• Knowledge of industry best practices in software development, security, and compliance.
• Knowledge of application & infrastructure security - helps you stand out.

What We offer:

• Adrenalin rush of being a part of a fast-growing company, and working on hard problems that matter.
• Fully remote, agile working environment.
• Good engineering culture with full ownership in design, development, release lifecycle.
• A wholesome opportunity where you get to build things from scratch, improve and ship code to production in hours, not weeks.
• Holistic understanding of SaaS and enterprise security business.
• Experience with security side of things.
• Annual trips to beaches or mountains (next one is to Wayanad).
• Open and supportive culture.
• Health insurance & other benefits for you and your spouse. Maternity benefits included.

Designation: Magento Developer / Sr. Magento Developer

Experience: 3+yrs

Location: Anywhere in India ( WFH for now for next 8-10months)

No. of Positions: 2

Notice Period: Immediate / Less than 30days (Do not share which is above this notice period)

Job Description:

Magento Developers with 3+ years of experience

1) Should have hands-on experience in Magento module/extension development

2) Should be able to quickly understand existing custom modules in Magento and customize and manage it further.

3) Hands-on experience in developing and consuming API/REST calls both inbound and outbound within Magento

4) Should know how to develop WebService/API/REST calls as per Magento architecture, coding standard

5) Troubleshooting integration issues from API/REST calls.

6) Excellent knowledge of PHP, JavaScript, HTML5, and CSS.

7) Good working experience on MySQL, developing complex SQL queries, design tables/database for complex business models

8) Knowledge of MVC, OOPs, Design Patterns – especially the design patterns used in Magento

9) Knowledge of Magento theming / UI components is preferred.

10) Hands-on experience with Magento 2 Porto Theming

11) Knowledge of deployment process in Cloud, especially for Magento

12) Should be competent and confident to speak up in team meetings, discussions, war rooms

13) Good command of English language

14) Should be able to work under minimal supervision

15) Should be able to coordinate with other teams and collectively solve issues.

16) Should be able to work independently as well as team

17) Candidate should have prior work experience in Magento Enterprise.

Job Description:

• Strong Experience of Node JS.

• Strong Experience of Reactjs development

• Experience in Server-side application architectures like Express.js, Meteor.Js, etc. is desirable.

• Experience in developing APIs is highly desirable.

• Experience in Mongo or MySQL database is a must.

• Understanding the nature of asynchronous programming and its quirks and workarounds.

• Understanding fundamental design principles behind a scalable application.

• Experience in delivering products using an Agile methodology is highly desirable.

• Experience with automated unit, integration and end-to-end testing is highly desirable.

• Experience in the area of network or systems management is a plus.

• gathering and analyzing user/business system requirements, Participate in design meetings and consult with clients to refine, test and debug programs to meet business.
• Develop, test and implement new software programs
• Identifying areas for modification in existing programs and subsequently developing these modifications
• Clearly and regularly communicate with management and technical support colleagues
• Design and Applications, Web Sites, Data Communication Processes and User Interfaces
• Writing and implementing efficient code
• Determining operational practicality
• Test, maintain and recommend software improvements to ensure strong functionality and optimization
• Working closely with other developers, UX designers, business and systems analysts
• Analyze user requirements , Make good technical decisions that provide solutions to business challenges
• achieve resolution to outstanding problems or issues
• Communicate effectively and professionally in all forms of communication with internal and external customers
• Possess strong problem solving and decision making skills while using good judgment

• Atleast 2 years of ServiceNow core development experience including web development experience (HTML, CSS, JavaScript) with up to 4 years total experience.

• Demonstrated proficiency with the ServiceNow Glide stack (Glide System, Record, Form)