
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.

About MobileFirst Applications Private Limited
About
At MobileFirst, we build technology solutions to improve business processes of small & medium enterprises. In the last 5 years, we are privileged to build solutions for Fortune 100 Companies, globally renowned brands, SMEs, high growth startups & ambitious Entrepreneurs. Few of the solutions we have built are used at Volkswagen, NFL & NHL Teams, Taj Hotels, Arvind Group, and others.
About MobileFirst Applications:
MobileFirst is a leading app growth & full-stack development agency.
We build bespoke solutions on iOS, Android & Web Platforms. Our technology stack is Swift, React Native, Objective-C, Java, NodeJS, ReactJS, AngularJS & PHP.
MobileFirst's app growth engineering is a unique consulting & development service which helps clients in areas of DeepLinking, App Store Optimisation, Universal Linking, Smart Campaigns, Customer Churn, Facebook & Google Re-marketing, Customer LTV & Acquisition cost.
Visit: https://mobilefirst.in
Connect with the team
Similar jobs
5–10 years of experience in backend or full-stack development (Java, C#, Python, or Node.js preferred).
•Design, develop, and deploy full-stack web applications (front-end, back-end, APIs, and databases).
•Build responsive, user-friendly UIs using modern JavaScript frameworks (React, Vue, or Angular).
•Develop robust backend services and RESTful or GraphQL APIs using Node.js, Python, Java, or similar technologies.
•Manage and optimize databases (SQL and NoSQL).
•Collaborate with UX/UI designers, product managers, and QA engineers to refine requirements and deliver solutions.
•Implement CI/CD pipelines and support cloud deployments (AWS, Azure, or GCP).
•Write clean, testable, and maintainable code with appropriate documentation.
•Monitor performance, identify bottlenecks, and troubleshoot production issues.
•Stay up to date with emerging technologies and recommend improvements to tools, processes, and architecture.
•Proficiency in front-end technologies: HTML5, CSS3, JavaScript/TypeScript, and frameworks like React, Vue.js, or Angular.
•Strong experience with server-side programming (Node.js, Python/Django, Java/Spring Boot, or .NET).
•Experience with databases: PostgreSQL, MySQL, MongoDB, or similar.
•Familiarity with API design, microservices architecture, and REST/GraphQL best practices.
•Working knowledge of version control (Git/GitHub) and DevOps pipelines.
Understanding of cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
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.
Developer Requirements/Expectations:
- Experience: 5+ Years
- Tech Stack: Core PHP, MySQL, Basic JavaScript, Oracle
- 3rd Party Integration: Payment Gateways (Apple Pay Wallet, Google Pay, Stripe)
- Tools: Trello, Slack, Github
- Soft Skills: Team Work, Excellent Client Communication.
Engagement Type: Full Time, Dedicated
- Work Hours: 8 Hours per day, 160 hours per month
- Shift: 10 AM-7 AM IST (Including Lunch hour)
- Work shifts need to be flexible to accommodate client calls in EST.
Screening Process:
Round 1: Technical
Round 2: Managerial
Location: Ahmedabad (Hybrid)
We are looking forward to hiring a committed
Java Developer with experience in building high-performing, scalable, enterprise-grade applications. You will be part of our Engineering team that works on mission-critical applications. You will be managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Location = Pune
You are required to:
Contributing in all phases of the development lifecycle.
Write well designed, testable & efficient code.
Ensure designs comply with specifications.
Prepare and produce releases of software components.
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
Our Current Stack
Backend: Spring (JAVA), Laravel (PHP), MySQL, NoSQL, NGINX Plus.
Frontend: Angular 5+ Ngrx/store 5
Infrastructure: Google cloud platform (App engine, CloudSQL, BigQuery, PubSub, Firebase Hosting), Scrapy Cloud, Pusher.io (websockets), Getstream.io, Filestack, Postmark app, AS2 Gateway, Google Cloud Endpoints Framework, MongoDB, Algolia, Memcache
Tools: Gitlab, Postman app, JIRA.
Technical Skills required
JAVA, SPRING OR SPRING BOOT, DATA STRUCTURES & ALGORITHMS, HIBERNATE, MYSQL, MONGODB and NOSQL
What Makes You Eligible?
LOOKING FOR CANDIDATES FROM PUNE LOCATION ONLY.
B. Tech degree ONLY ( FIRST CLASS GRADE IN FINAL YEAR 60 % OR ABOVE ONLY).
Experience in the same role of almost 1-2 years.
Experience with connecting backend and frontend services.
Exposure to consuming data through different interfaces (Web API's/Socket/ REST/ RESTFUL/ JSON/ XML).
Proficiency in Data Structures and Algorithms.
Understanding of web markup, including HTML 5 CSS.
Understanding of client-side scripting and JavaScript frameworks.
Ability to write clean, reusable and well documented code.
Proficient understanding of code versioning tools, such as Git.
Knowledge of API authentication techniques (Token, JWT, OAuth2) - desirable but not mandatory. (Experience with API Design will be a plus)
Fair spoken and written English Flexibility - Things change around here. FAST!
Other Inter-personal skills like self-motivation, persistency, patience and eagerness to learn and work independently.
About the Role
As one of the key members of the development team, you will have the unique opportunity to redefine the architecture of our suite of products.
You will get to work directly with our founding team to deliver the most valuable and joyful experience to our customers. If you are looking to make a real impact on real people’s lives and accelerate your career to new heights in the meantime, then this is the perfect opportunity for you. You will help in refactoring certain codes to bring greater flexibility and micro service architecture. CurbWaste intends to execute event driven workflow architecture.Benchmark design patterns for security and scalability will need to be implemented.
Requirements
What you will do
• Review current code and anticipate engineering bottlenecks
• Designing and developing REST API interfaces
• Optimize queries
• Design SOLR based search solution
• Code review peer code
• Identifying code libraries and design patterns
What you will need
• Experience building out RESTful APIs for front-end clients
• Basic knowledge of a minimum one modern front-end framework such as React,Polymer, Angular or Vue.js
• Expert level understanding of NodeJS, and frameworks such as ExpressJS, Fast,LoopBack (preferred)
• Experience with a version control tool (we use git - GitHub and BitBucket)
• Familiarity with modern DevOps tools such as Ansible, Docker, Terraform,Fabric, Kubernetes, etc
• SOLR or ElasticSearch experience
• Advanced Knowledge of NoSQL (also SQL) databases - MongoDB, PostgreSQL
• Extensive experience of any caching technologies - Redis (preferred),
Memcached
• Experience with AWS services like Elastic Beanstalk, S3, EC2 Lambda, API Gateway, SQS, etc
• Prior experience in notifications delivery tools - FCM
• Understanding of patterns and techniques for building scalable back-end
infrastructure including caching, rate limiting, authentication, and authorization schemes
• Experience with programming languages such as golang, Typescrip
About Freespace* (a.k.a. Workplace Fabric)
Workplace Fabric develops solutions that makes workplaces intelligent. Our solutions help increase productivity of office workers while helping to lower the cost of real estate. Our Flagship
product Freespace is installed in over 40 cities around the world and serves over 30,000 people every day. Starting with the first deployment in March 2016 we have rapidly grown with our solution being rolled out globally while continuing to stay cash positive. With successes at several blue-chip clients Workplace Fabric has carved a unique leadership position in workplace management and employee engagement SaaS solutions.
*To find out more, follow us on social media – LinkedIn & Facebook @ workplace-fabric
What is on our offer?
- An absolutely action packed, fun, and demanding workplace lets our employees to thrive in a team-based environment with passion, fun, pride and teamwork as our core values.
- We can offer you career opportunities to challenge, develop and exceed your aspirations with training and development throughout your career.
- Life is never dull at Freespace as there is always something to learn, constantly pushing you to develop your skills and take on the next exciting challenge.
Profile Brief:
You will be an experienced Backend Engineer with an interest in data and analytics, developing our fast growing Analytics Team. Working closely as an active team member, having ownership & accountability to develop analytics stories, in delivering timely projects through Scrum. Working with product owners and team leads to clarifying requirements, challenge assumptions in order to ensure successful executions and push the client analytics to its best.
Key Skills and Experience
Required Skills: JavaScript (ES6+), SQL, Nodejs, AWS (Lambda, Athena, S3)
Good to have: TypeScript, IoT, AWS Certifications
Experience: 4-6 years
- Data processing and manipulation expert
- Able to easily comprehend and write complex & efficient SQL queries
- Ability to understand, design and fully document end-to-end scalable IoT systems
- Expert in in building Well-Architected solutions using AWS Services (eg Lambda, Athena, S3 etc)
- Master in JavaScript with excellent understanding of asynchronous patterns
- Comfortable with of ES6+, TypeScript & emerging web technologies
- Experience of building secure, metered REST APIs and connectors for BI tools like Tableau and PowerBI
- Hands-on programmer
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Key Behaviours
- Be passionate about understanding the business problem and using data to tell the stories in delivering solutions which drive client decisions.
- Lead by example by demonstrating best practice and mentoring of team members
- Clear thinker with a systematic problem-solving approach, breaking the problem down into simple achievable and realistically estimated steps
- Seeing a project through from conception into production and support ensuring quality throughout.
- Ensure high standards by instilling data quality checks, code reviews and documentation in work and team practices.
- Able to challenge solutions and processes in creating the best products and environment to work.
- Unafraid to own mistakes
- Customer focussed
Responsibilities
- Produce clean, efficient code based on specifications
- Integrate software components and third-party programs
- Verify and deploy programs and systems
- Troubleshoot, debug and upgrade existing software
- Gather and evaluate user feedback
- Recommend and execute improvements
- Create technical documentation for reference and reporting
Requirements and skills
- 1-3 Years of Proven experience as a Backend Developer
- Tech Stack:
- AWS- Lambda, ECS, RDS Arora, RDS PostgreSQL, DynamoDB, S3, SQS, APIG, Cloud Front
- NodeJS
- Typescript(optional)
- Familiarity with Agile development methodologies
- Experience with software design and development in a test-driven environment
- Ability to learn new languages and technologies
- Excellent communication skills
- Resourcefulness and troubleshooting aptitude
- Attention to detail
Why this role?
Help build the future of sales: At Nektar, you will help redefine the way people sell. Across countries and industries. There are few startups with this kind of market potential.
A team with decades of domain expertise: Between them, the founders have nearly two decades of experience founding and growing startups and building and selling SaaS products globally.
Tackle our most impactful problems: Our team is still small, and people wear many hats. You’ll jump between product, design, engineering, devops and growth. You will not be bored.
Join us at a magical time: Founded and headquartered in Singapore, Nektar raised a substantial seed round from great SaaS VCs in less than 4 weeks of starting the company, giving us a massive jump start and room to focus on our product and users.
What do we do?
Nektar’s mission is to help people work smarter. Our first product is an assistant for sales teams that will help close more deals faster.
Sales organizations have spent hundreds of billions of dollars on systems of record to collect vast amounts of data. This data might produce pretty graphs on managers’ reports but it hardly ever helps the salesperson in the field move their deals forward. This is why, in 2019, less than 30% of salespeople used their organization’s CRM as intended, and 57% of the sales teams globally missed their sales quota.
This is where we’re different — we are laser-focused on the specific actions that help salespeople close deals. We’re building a real system of growth, a first of it’s kind to help salespeople become better salespeople by helping our users build productive habits, adopting best practices and eliminating friction from the sales process.
What we’re looking for?
- We’re looking for engineers who can hit the ground running, with at least a year’s experience building production servers using Node.js. Experience with the frontend is positive but not required.
- As an all-remote team, we require great communication skills, particularly in writing. You must be a self-motivated manager of one with the ability to work independently, take ownership and proactively seek help when required. Prior experience working remotely will be positive but is not required.
- As a startup, we prefer generalists over specialists and product-focused engineers who can empathize with users. Experience working at a fast-growing startup would be positive but is not required.
- Experience in sales tech will be a strong positive but is not a must.
How do we work?
We’re an all-remote engineering team from the beginning (yes, since before the pandemic!), and we’ve built a fantastic remote-friendly culture. We support every team member to set up a great personal workspace that fits them — whether that’s a home office, a co-working space or just hanging out at a coffee shop. We are location agnostic and you can literally choose a location that works for you . Our distributed team currently sits in Singapore, India, Vietnam, Australia and Indonesia.
We do weekly team activities, like online gaming and coffee chat to ensure that physical distance doesn’t keep us from being a close-knit team.
Nektar is a small team, and everyone’s involved in shaping the product we build. We’re still iterating and figuring out the product-market fit, so we’re not averse to throwing away code. We’d rather build a few powerful features that solve important needs than lots of features that are not as valuable.
In line with our mission — helping people work smarter — we’re always thinking about how we can work smarter ourselves. We try to avoid large and long meetings and prefer ad-hoc collaboration with one or two other people instead. We invest in continuous integration and deployment, automated testing and other tooling to eliminate friction from our engineering processes. We aim for clear written documentation and communication.
Responsibilities:
- Build reusable code and libraries for future use.
- Own & build new modules/features end-to-end independently.
- Collaborate with other team members and stakeholders.
Requirements:
- Thorough understanding of Node.js, JavaScript, its quirks, and workarounds.
- Excellence in at least one framework like strongloop loopback, express.js, sail.js etc.
- Excellence in at least one Javascript framework like Angular, vue.js, Ember, React or Backbone.
- Basic architectural understanding of modern day web applications.
- Diligence for coding standards.
- Must be good with git and git workflow.
- Experience of external integrations is a plus.
- Working knowledge of AWS, GCC, Azure.
- Expertise with linux based systems.
- Experience with CI/CD tools like jenkins is a plus.
- Experience with testing and automation frameworks.
- Extensive understanding of RDBMS systems.
- Interpersonal Go-getter attitude and a passion for making killer web applications.
- Good communication and interpersonal skills.
- Ability to work in a high pressure environment.
- Ability to quickly understand complex problems and devise effective solutions.
- Knowledge of D3/NodeJS/AngularJS/lodash etc.
- Experience on Cloud as a platform or Infrastructure.
- Inclination to application design standards.










