
Full-Stack Engineer (Backend Heavy)
Experience: 4–6 Years | Function: Engineering — Product | Location: On-site
About Us
We’re building the next generation of AI-powered business software, and we’re looking for people who want to shape that future with us. With Lumen, we’re reimagining how users interact with CRM — moving beyond screens, menus and dashboards to an intelligent interface where users can simply ask AI to take actions, retrieve knowledge, generate insights and get work done. With Agent Studio, we’re enabling businesses to build, test and deploy their own AI agents for real-world workflows. And with Invorto, we’re bringing AI to voice, allowing businesses to create intelligent voice agents tailored to their customer and operational use cases.
What makes this especially exciting is the stage and scale of the opportunity. You’ll get to work on genuinely hard problems across LLMs, agents, reasoning, orchestration, voice AI, evaluation, reliability and enterprise security — not as isolated experiments, but as products used in real business workflows. You’ll have the opportunity to build zero-to-one, own meaningful parts of the product end-to-end, work closely with customers, experiment rapidly, and see your work reach production at scale.
Why join now? Because the playbook for enterprise AI is still being written. You won’t just be implementing someone else’s roadmap — you’ll help define the product, architecture and experiences that become that playbook. Expect high ownership, fast iteration, hard technical and product problems, direct customer impact, and the chance to build AI systems that have to work reliably in the real world — not just in a demo.
About the Role
We are looking for a Full-Stack Engineer with a strong backend bias to help build end-to-end product experiences across Lumen and Agent Studio. You will own features from database and API design through to the front-end experience, working closely with product and design to ship AI-powered experiences that real business users depend on every day.
What You’ll Do
Design and build backend services and APIs in Python that power core product and AI-agent features.
Build front-end interfaces and experiences that let users interact naturally with AI agents, insights and CRM workflows.
Own features end-to-end — from data modeling and backend logic to UI implementation, testing and release.
Work with product managers and designers to translate requirements into well-architected, scalable systems.
Integrate with LLM-based and agentic backend systems built by the AI/ML engineering team.
Optimize application performance, reliability and code quality across the stack.
Engage directly with customers and customer success teams to understand workflows, triage issues and inform roadmap decisions.
What We’re Looking For
4–6 years of professional full-stack engineering experience, with a clear backend-heavy skill set in Python.
Strong experience designing and building REST/GraphQL APIs, data models and scalable backend services.
Working proficiency with modern front-end frameworks (e.g., React) to build and integrate user-facing features.
Experience with relational/NoSQL databases, caching and cloud infrastructure.
Ability to move fast in a zero-to-one environment while maintaining code quality and system reliability.
Strong communication skills — this is a customer-facing role, and you will be expected to clearly articulate technical concepts, decisions and trade-offs to both technical and non-technical stakeholders, including customers.
Good to Have
Experience building features on top of LLM or AI-agent backends.
Prior experience in CRM, SaaS or enterprise business applications.
Exposure to real-time or voice-based product interfaces.

Similar jobs
Job Title : Generalist Fullstack Engineer (Java / Node.js / React / AI-Driven Engineering)
Experience : 5 to 12 Years
Location : Bengaluru (Koramangala) – Hybrid (3 Days WFO)
Employment Model : C2H
Joining : Immediate to 20 Days Notice Only
Open Positions : 4
About the Role :
We are hiring a hands-on Generalist Fullstack Engineer for a high-impact engineering team. This is a 90% coding role focused on building scalable products across frontend, backend, cloud, and modern AI-enabled engineering practices.
Mandatory Skills :
Full Stack Development (Frontend + Backend), JavaScript / Java / Node.js / Python / Go, ReactJS or modern UI frameworks, Microservices, AWS, Docker, Kubernetes, SQL/NoSQL, CI/CD, Terraform (IaC), Automated Testing (TDD), AI-enabled software delivery, and strong hands-on coding experience.
Key Requirements :
- 5 to 12 years of software development experience.
- Strong expertise in JavaScript, Java, Node.js, Python, or Go.
- Hands-on experience with ReactJS / modern frontend frameworks.
- Strong backend depth with microservices & event-driven architecture.
- Experience with AWS, Docker, Kubernetes.
- Exposure to AI tools/frameworks in software delivery.
- Strong understanding of SQL/NoSQL databases & data modelling.
- Experience with CI/CD, automated testing, Terraform (IaC).
- Working knowledge of TDD, pair programming, continuous integration, security best practices.
Roles & Responsibilities :
- Develop and own production-grade full-stack applications.
- Build AI-first engineering workflows to improve delivery efficiency.
- Drive architecture decisions and engineering best practices.
- Deliver scalable cloud-native solutions.
- Collaborate across product, QA, design, and architecture teams.
- Improve system reliability through monitoring, automation, and testing.
Ideal Candidate :
✔ Strong end-to-end ownership (Frontend + Backend).
✔ Deep hands-on coding mindset (not people-management focused).
✔ Strong AWS + SQL exposure.
✔ Experience building and managing UI state and frontend components.
✔ Stable career progression (avoid frequent job changes).
Interview Process :
- Technical Round – GT (Assemble)
- Technical Round – Client
- Technical Round – Client
- HR Discussion & Offer
Job Description in Brief: SiGa Systems is looking for 3 to 8 years of experience who is proficient in PHP/ WordPress/Laravel/ CodeIgniter / to develop Websites and web applications in core PHP. The desired candidate would be involved in a full software/ website development life cycle, starting from requirement analysis to testing. The candidate should be able to work in a team or should be able to handle projects independently.
Technical Key Skills:
- Expertise in MVC, PHP Framework (Laravel, CodeIgniter), WCF, Web API, and Entity Framework.
- Proficient in jQuery, AJAX, Bootstrap, Proficient in HTML5, CSS3, JavaScript, SQL Server, WordPress, MySQL.
- Hands-on core PHP along with experience in AJAX, jQuery, Bootstrap, APIs
- Experience with Project Management systems like Jira, Trello, Click, Bug herd, Basecamp, etc.
- Experience in Shopify is preferred. High proficiency with Git.
- Must have good communication skills.
Roles & Responsibilities:
- Should be responsible for developing websites and Web Based Applications using Open
- Source systems.
- Monitor, manage, and maintain the server environments where PHP Laravel applications are
- hosted, ensuring optimal performance, security, and availability.
- Integrate third-party APIs and services as needed.
- Strong communication and interpersonal skills, with the ability to work effectively in a
- collaborative team environment.
- Actively participate in quality assurance activities including design and code reviews, unit
- testing, defect fixes, and operational readiness.
- Diagnose and resolve server-related issues, including those impacting the performance of
- Laravel applications. This includes debugging server errors, analyzing logs, and identifying
- root causes of downtime or slow response times.
- Manage development projects from inception to completion autonomously and
- independently
- Provide administrative support, tools, and documentation for specific development projects.
- Design applications and database structures for performance and scalability.
- Deliver accurate project requirements and timeline estimates, providing regular feedback
- and consistently meeting project deadlines.
- Designing and implementing web-based back-end components that are high-performing and
- scalable.
- Participating and improving development processes and tools for other development teams.
- Playing a lead role in software design, architecture, requirements analysis, investigation of
- leading-edge technologies, and software development.
- Contribute with ideas and efforts towards the project and work as part of a team to find
- solutions to various problems.
Job Description :
9 to 12 years' experience in software engineering
Bachelor's degree in computer science or engineering discipline
- Strong coding and debugging skills with experience in web technologies including one or more of the following: React, Angular, Node, D3 (Java API's Javascript etc.), AJAX, CSS
- Worked with authentication technologies like SAML, OAuth, SSL etc.
- Hands on experience with one or more web and application server technologies such as Apache Tomcat, Nginx, Jersey server, OSGi and other relevant frameworks
- Hands on experience with code control and code review tools like Git, Gerrit
- Good exposure to databases, SQL queries
- Fast executor with a track record of delivering complex projects on time; responds under pressures of time and uncertainty
- Strong written, editing, proofreading and oral communication
- Strong inter-personal communication and collaboration skills.
- The candidate must be able to work independently & must possess strong communication skills.
- A good team player, high level of personal commitment & 'can do' attitude.
- Strong communication skill to communicate at all levels, which includes interaction within the team & with senior management.
- The candidate should have proactive approach towards problem solving.
- Good analysis skills in order to troubleshoot and resolve the problems.
• Demonstrated technical capability in developing & designing SaaS products using modern tech
stacks on any cloud computing platform.
• Demonstrate aptitude for learning new technology of ServiceNow quickly.
• Demonstrated Object-Oriented Programming (OOP) skills.
• Experience in any back-end languages (e.g. C#,.Net Java, Python) and JavaScript frameworks
(e.g. Angular JS, React JS, Node JS)
• Experience in any front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery,
Angular JS)
• Strong experience of developing on enterprise platforms.
• Configure Web Services to integrate with external applications using REST and SOAP API calls.
• Experience developing on enterprise platforms.
• Working knowledge of relational databases and SQL, MySQL is preferred.
• Has worked in a successful start-up environment taking product from sprints to a mature stage.
Qualifications & Skills:
• Bachelors/Master’s degree in computer science/ IT engineering or equivalent.
• Min. 3+ years of software development for any SaaS or Enterprise Software Products or
Applications.
• 3+ years of professional experience with a JavaScript framework such as AngularJS & Node.js.
• 3+ years of professional experience building web applications using JavaScript, JQuery & Ajax.
• Effective communicator with both internal & external stakeholders.
• Experience in a highly Agile/scrum environment.
• Prior or any experience of development in ServiceNow or any other cloud computing platform.
• Ability to work in a start-up environment.
About Eventible
Eventible.com is the world's first event marketing & review platform. Think of a TripAdvisor or a GlassDoor but built for business events.
Our mission is to bring transparency to the global events industry and bring the authentic voice of event attendees to the forefront - our unique scoring algorithm ranks business events for a given category and we send then send out personalized recommendations to our community matching them with more events to attend.
Currently we want to grow fast and build a great culture & team!
Job Description
We’re seeking a Senior Full Stack Developer (RoR + React JS) who can take on the ownership of the entire website development . Primary responsibilities would be:
1. You will be leading an entire team of developers for a start up.
2. Writing high-quality code, and designing/architecting systems of varying complexity and scope.
3. Ensure that functional requirements are correctly interpreted and translated into clear and robust code.
4. Collaborate and communicate with dev team members regarding -design status, project progress, and issue resolution.
5. Ensure that the new code is written and conforms to existing guidelines and quality practices.
6. To meet tight deadlines and adapt to changing priorities.
7. Work in a fast-paced environment and make pragmatic engineering decisions in a short amount of time.
Requirements
1. Total of 5+ years experience
2. Ruby-on-Rails (RoR) for APIs
3. React JS
4. HTML/CSS/JS knowledge
5. Any RDBMS knowledge
Optional
1. Docker / Docker compose
2. PostGRESQL Database
- Integration of user-facing elements developed by front-end developers
- Build efficient, testable, and reusable PHP modules
- Solve complex performance problems and architectural challenges and Integration with 3rd Party system via API s
- Knowledge of object oriented PHP programming
- Good understanding of front-end technologies, such as J query, JavaScript, HTML 5, and CSS3
- Understanding the fully synchronous behavior of PHP
- Understanding of MVC design patterns
- Strong knowledge of the common PHP or web server exploits and their solutions
- Understanding fundamental design principles behind a scalable application
- Understanding accessibility and security compliance
- Integration of multiple data sources and databases into one system
- Familiarity with limitations of PHP as a platform and its workarounds
- Creating database schema that represent and support business processes
- Familiarity with SQL databases such as MYSQL and their declarative query languages
- Proficient understanding of code versioning tools, such as SVN
- CodeIgniter Framework
Title: Software Development Engineer Fullstack
Duration: Permanent / Fulltime
- Development and potentially maintenance of advanced software systems and their features.
- Interact with customers and partners to scope and estimate user stories from acceptance criteria.
- Produce highly testable code with an emphasis on quality and correctness.
- Work alongside other engineers to improve technology, while consistently applying established effective software development practices.
- Attend regular project meetings, report on progress and setbacks, and participate in both planning and retrospective exercises.
- Proficient in .NET Core /C# ,Strong in OOPs, MVC, Design patterns, SOLID principles, Web API, SQL Server.HTML5, CSS3, JavaScript/Type scripting and web development frameworks.
- Expertise in React, Nodejs,
- 3 years of SQL server development
- Database design SOAP, REST
Expertrons is an initiative by experienced professionals turned entrepreneurs (IITB alum) having built a few of India's largest companies across multiple domains. This will be an opportunity to directly work with the founders. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of adapting to changing market conditions, willing to join a growing startup, a rational and no-nonsense approach and practical thought process.
Good-to-Have Attributes: Start-up experience, Android experience would be a plus. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of building a robust, scalable tech platform adaptable to changing market conditions, willing to join a growing startup, a rational and no non-sense approach and practical thought process.
Responsibilities and Duties
Good-to-Have Attributes: Start-up experience, Android experience would be a plus. What we are looking for: An entrepreneurial, thoughtful and positive mindset/approach to solving large problems, capable of building a robust, scalable tech platform adaptable to changing market conditions, willing to join a growing startup, a rational and no non-sense approach and practical thought process.
Required Experience, Skills and Qualifications
Required Skills: Database - MySQL, NoSQL (MongoDB), Restful Architectures, AWS, SAAS, JavaScript, PHP, Cordova










