Backend Developer (Sr. Engineer / Lead)

Expected Date of Joining Immediate/ 30 days  

What makes Techjays an inspiring place to work

At Techjays, we are helping companies reimagine how they build, operate, and scale with AI at the core.

We operate as part of the 1% of companies globally that can truly leverage AI the right way and not just as experimentation, but as secure, scalable, production-grade systems that drive measurable business outcomes.

Our strength lies in combining deep backend engineering with AI system design, building AInative platforms, intelligent workflows, and cloud architectures that are reliable, observable, and enterprise-ready. Our team includes engineers and leaders who have built and scaled products at global technology organizations such as Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. Today, we function as a high-agency, execution-focused team building advanced AI systems for global clients.

About the role

We are looking for a strong backend engineer who can design and build secure, scalable Python systems that power AI-native applications.

You will work on AI-enabled platforms, production systems, and scalable backend services that support LLM integrations, RAG pipelines, and intelligent workflows.

Years of Experience: 3 - 5 years

Location: Coimbatore

Key Skills

Backend Development (Familiar):

• Python
• Django / Flask
• RESTful APIs
• Websockets

Cloud Technologies (Familiar):

• AWS (EC2, S3, Lambda)
• GCP (Compute Engine, Cloud Storage, Cloud Functions)
• CI/CD pipelines with Jenkins / GitLab CI or Github Actions

Databases (Familiar):

• PostgreSQL
• MySQL
• MongoDB

AI/ML (Familiar):

• Basic understanding of Machine Learning concepts
• Assist in building and integrating Agentic AI workflows
• Familiar with RAG
• Vector Databases (Pinecone or ChromaDB or others)

Tools:

• Git
• Docker
• Linux

Roles and Responsibilities

• Develop and maintain backend services using Python and Django/Flask under guidance.
• Assist in building scalable and secure APIs and backend systems for AI-driven applications.
• Write clean, efficient, and maintainable code following best practices.
• Collaborate with cross-functional teams including frontend developers, data scientists, and product teams.
• Participate in code reviews, debugging, and performance optimization.
• Support integration of AI/ML components such as LLMs and RAG pipelines.
• Continuously learn and improve technical skills in backend and AI technologies.

What We’re Looking for Beyond Skills

• Builder mindset — you think in systems, not just tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous environments
• Clear communication and collaborative approach
• Ability to work in a fast-paced, evolving startup environment

What We Offer

• Competitive compensation
• Paid holidays & flexible time off
• Medical insurance (Self & Family up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems
• Exposure to global clients and high-impact projects
• A culture that values clarity, integrity, and continuous growth

Job Title: Senior Software Engineer - Backend

About the firm:

Sustainability lies at the core of Stantech AI. Our vision is to empower organizations to derive actionable insights—effectuating a smarter way of working. We operate on the premise that each client is unique and as such requires their own idiosyncratic solutions. Putting this principle into practice, we deliver tailor-made solutions to digitalize, optimize, and strategize fundamental processes underpinning client organizations. For more information, please refer to our website: www.stantech.ai

Job Description:

As a Senior Software Engineer at Stantech AI, you will play a pivotal role in designing, developing, and maintaining enterprise-grade backend services and APIs that cater to the unique needs of our clients. You will be a key member of our engineering team and will contribute to the success of projects by leveraging your expertise in Python, SQL, and modern DevOps practices.

Key Responsibilities:

• Design, develop, and maintain high-performance backend applications and RESTful APIs using Python FastAPI framework.
• Optimize and maintain relational databases with SQL (data modeling, query optimization, and sharding) to ensure data integrity and scalability.
• Create, configure, and manage CI/CD pipelines using GitLab CI for automated build, test, and deployment workflows.
• Collaborate with cross-functional teams (data scientists, frontend engineers, DevOps) to gather requirements and deliver robust, scalable, and user-friendly solutions.
• Participate in architectural and technical decisions to drive innovation, ensure reliability, and improve system performance.
• Conduct code reviews, enforce best practices, and mentor junior engineers.
• Troubleshoot, diagnose, and resolve production issues in a timely manner.
• Stay up-to-date with industry trends, emerging technologies, and best practices.
• Bonus: Hands-on experience with server-level configuration and infrastructure—setting up load balancers, API gateways, and reverse proxies.

Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• Minimum 3 years of professional experience in backend development, with strong expertise in Python and SQL.
• Proven track record building and maintaining CI/CD pipelines using GitLab CI.
• Familiarity with containerization and orchestration technologies: Docker, Kubernetes.
• Solid understanding of software development lifecycle (SDLC) best practices, design patterns, and version control (Git).
• Excellent problem-solving, debugging, and communication skills.
• Ability to work independently and collaboratively in a fast-paced environment.
• Plus: Experience with front-end technologies (HTML, CSS, JavaScript) and cloud platforms (AWS, GCP, Azure).
• 
  

Financial Package:

Competitive salary in line with experience: ₹10–20 Lakhs per annum, contingent on qualifications and experience.

ython Developer responsibilities include:

• Writing effective, scalable code
• Developing back-end components to improve responsiveness and overall performance
• Integrating user-facing elements into applications

Job brief

We are looking for a Python Developer to join our engineering team and help us develop and maintain various software products.

Python Developer responsibilities include writing and testing code, debugging programs and integrating applications with third-party web services. To be successful in this role, you should have experience using server-side logic and work well in a team.

Ultimately, you’ll build highly responsive web applications that align with our business needs.

Responsibilities

• Write effective, scalable code
• Develop back-end components to improve responsiveness and overall performance
• Integrate user-facing elements into applications
• Test and debug programs
• Improve functionality of existing systems
• Implement security and data protection solutions
• Assess and prioritize feature requests
• Coordinate with internal teams to understand user requirements and provide technical solutions

Requirements and skills

• Work experience as a Python Developer
• Expertise in at least one popular Python framework (like Django, Flask or Pyramid)
• Knowledge of object-relational mapping (ORM)
• Familiarity with front-end technologies (like JavaScript and HTML5)
• Team spirit
• Good problem-solving skills
• BSc in Computer Science, Engineering or relevant field

What you need to have:

Backend Developer - Node.JS - AirFi

AirFi is a market leader in providing portable Onboard Passenger Entertainment and Mobile Crew Sales Solutions to various passenger travel segments. Founded in 2011 in The Hague, Netherlands - AirFi is the world's fastest-growing company in mobile InFlight Entertainment space and in providing ancillary sales solutions to enterprise customers.

AirFi brings disruptive innovations in a cost-effective manner to the airline cabin and other modes of passenger transport mediums and is making thousands of passengers and crew happy every day all over the globe!

Your key responsibilities

• Responsible for ideating, designing, developing, and supporting the backend services of AirFi web apps for different modes of passenger transport including major airlines across the world.
• Manage your components independently, including but not limited to: gather requirements; communicate design decisions to cross-functional teams including data science, engineering, analytics, and operations; proactively seek user feedback.
• You will help AirFi to quickly iterate and scale web app development to different segments of customers with standard processes, automation, monitoring, and rapid quality assurance.
• Proactively monitor the web apps space for continuous improvements and optimisations, looking for new opportunities and challenges.

What we look for

• Exposure to product development, self-driven, highly motivated and you must be independent in managing on your own components or features
• You must be extremely collaborative and enjoy working cross-functionally with other engineers, designers, and stakeholders
• You must possess an affinity for metrics and analytics - You must be proactive and must move fast or pivot to meet the changing needs of the product
• You are a problem solver and can use everything from front end to command-line tools to help you identify and fix issues.
• You should be diligent, thoughtful, have an eye for detail and have great oral and written communication skills
• Work with product and engineering teams on different data driven products and help drive/implement the Data flows for the same.
• Designing, integrating and documenting technical components for seamless data extraction and analysis

Must have technical skills

• MUST: Experience in Javascript or any modern-day JS frameworks - 7+ years
• Experience NodeJS, MongoDB or any other NoSQL DB - 7+ years
• Experience on building RESTful services and MVC patterns - 5+ years

You get bonus point for

• Responsive web-frameworks (e.g. Foundation, Bootstrap)
• Experience in AngularJS, React, etc - 2+ years
• Linux skills (we run on embedded Linux)
• Expertise HTML5, CSS,
• Experience on Cloudant, AWS, GCP etc.

• Experience on eCommerce or payments related domains

We promise to provide opportunities that not only satisfy your creative instincts but also let you make a significant impact on the products that we create and ultimately the business we are in. We provide a great platform to take up multiple roles based on individual interests or skills and collaborate with different global teams. We boast of a professional, fun work environment with a flat hierarchy and super supportive people to work with. We also encourage a work culture where - no idea is a bad idea and the team can shout it out to be heard!

Some of our benefits that our employees cherish:

• Flexible work timings, remote working and work from home options
• Liberal employee policies including genuine open-door policy and special focus on keeping the work culture non toxic
• A very liberal leave policy that includes paternity, adoption and sabbatical leaves
• We provide Skill enhancement sponsorships
• Celebratory team events, regular team virtual GupShups and fun engagement activities including the annual team (destination) meetings and the annual family gala dinner!
• Meal coupons and random gift vouchers
• Career longevity perks and so on!

When we're in office some of the things that make AirFi an interesting place to work are - healthy breakfast, snacks and a fully loaded pantry (read: health alert!); we try to keep AirFi as a fun place to work at and have interesting team activities on Fridays with occasional beers. 

You get the opportunity to work and socialise with our global team when they visit or when you visit our customer offices/hangers. Last but not the least, in case you are an aviation geek - the opportunity to be on test flights and learn how the aviation industry works!

• https://www.linkedin.com/company/airfi">LinkedIn
• https://www.facebook.com/AirFi.aero">Facebook
• https://twitter.com/airfi_aero">Twitter
• http://airfi.aero/">Website

Role: Senior Software Developer

Experience: 3-6 years of experience.

Work Location: Bangalore

Job responsibility The Software Developer contributes, to create a customer’s solution, in the building phase of the software development life cycle. The Software Engineer is responsible for performing the detailed design of application and technical architecture components and classes in accordance to the specification provided by the Solution Architect, for coding of SW components, and for the early testing phases (component testing), and system testing support

Requirement:
Must Have skills: Java/J2ee, SQL, Web services, Spring Boot, Elastic search

Job description
- Hands on experience in Java, Python, scripting
- Design, implement, deploy and support web-based applications and web services using server technologies stacks that include Java, MySQL
- Experience in Java/J2EE using web frameworks Play or Spring boot, REST API Development and ORM (JPA, Hibernate eBean etc.)
- In depth knowledge of Design patterns and Data structures
- Databases - MySQL, Oracle, SQL
- Solid understanding of concepts like Web Services, SOA, REST APIs, Message Queue, Caching, Distributed/Scalable Architecture
- Secure application development best practices, such as OWASP
- Document and maintain all design documents and involve in review process.
- Experienced problem solving and debugging skills.
- Good verbal and written communication and interpersonal skills
- Experience in Agile methodology is added advantage
- Knowledge of Cloud Knowledge /Azure
- Must know about Unix knowledge
- experience in Elastic search