Backend Engineer (node.js)

About Blitzy

Blitzy is a Cambridge, MA based AI software development platform on a mission to revolutionize the software development life cycle by autonomously building custom software to unlock the next industrial revolution. We're transforming how enterprises build software, turning enterprise requirements into production-ready code with an agentic software development platform that can autonomously execute 80% of the quantum of software development work. We're backed by multiple tier 1 investors, and have proven success as founders of previous start-ups.

The Role

We're seeking an experienced POC Engineer to join our India HQ2 team. This critical role sits at the intersection of cutting-edge AI technology and enterprise customer success. You'll lead the technical design, development, and delivery of proof-of-concept implementations that demonstrate the transformative power of Blitzy's agentic software development platform to Fortune 500 clients. This role requires deep technical expertise, strong customer-facing skills, and the ability to rapidly prototype and iterate on complex AI-driven solutions.

What You'll Do

• Lead Technical Pilots and POCs: Design, architect, and implement end-to-end proof-of-concept solutions that showcase Blitzy's platform capabilities to enterprise customers
• Customer Collaboration: Work directly with Fortune 500 clients to understand their technical requirements, challenges, and success criteria for POC engagements
• Rapid Prototyping: Build functional demonstrations and prototypes that prove technical feasibility and business value, often under tight timelines
• AI/ML Integration: Leverage LLMs, agentic workflows, and multimodal AI capabilities to solve complex customer use cases
• Technical Architecture: Design scalable, production-grade architectures that can transition from POC to full implementation
• Performance Optimization: Conduct performance analysis, identify bottlenecks, and optimize solutions for speed, efficiency, and reliability
• Documentation & Knowledge Transfer: Create comprehensive technical documentation and effectively communicate architecture decisions to both technical and non-technical stakeholders
• Cross-functional Collaboration: Partner with Sales, Product, and Engineering teams to refine platform capabilities based on customer feedback
• Innovation Leadership: Stay at the forefront of AI/ML advances and identify opportunities to incorporate new techniques into POC solutions

What We're Looking For

Required Qualifications

• 10+ years of software engineering experience with proven track record in enterprise software development and production systems
• Deep expertise in AI/ML technologies, particularly with LLMs, agentic systems, and generative AI applications
• Strong background in building enterprise-grade solutions that have shipped to production
• Extensive experience with modern software architecture, including cloud-based platforms (AWS, GCP, or Azure)
• Proficiency in multiple programming languages (Python, TypeScript/JavaScript, Go, Java, or C++)
• Demonstrated experience leading technical teams and mentoring engineers
• Proven ability to translate complex technical concepts for diverse audiences
• Track record of working directly with enterprise customers in technical consulting or solutions engineering capacity
• Strong analytical and problem-solving skills with focus on performance optimization
• Excellent communication skills with ability to present to C-level executives

Preferred Qualifications

• Background in developing AI agentic workflow orchestrators or similar multi-agent systems
• Experience with GPU-based computing and optimization
• Experience with sequence-to-sequence models and deep neural network architectures
• M.S. or Ph.D. in Computer Science, Engineering, or related field
• Experience leading distributed teams across geographies
• Track record of innovation (patents, publications, or open-source contributions)
• Experience with Responsible AI practices and frameworks

Key Success Metrics

• Successfully deliver POCs that convert to paid customer engagements
• Achieve high customer satisfaction scores and build strong customer relationships
• Reduce time-to-value for POC implementations through reusable frameworks and components
• Contribute technical insights that improve core platform capabilities
• Build scalable POC processes and best practices for the India team

Our Culture

Who we are: Led by two pioneering co-founders we are one of the fastest growing companies in the U.S., creating our own category of enterprise autonomous software development. We automate thousands of hours of software development for our customers, which includes strong representation within the Fortune 500.

How we work:

• We move Blitzy Fast: Time is both our company's and our clients' most precious asset. We move quickly and decisively to innovate internally and deliver exceptional software externally.
• Championship Mindset: We operate like a professional sports team. We win as a team by holding ourselves and each other to high standards, collaborating in-person, and remaining focused on the mission.
• Passion for Invention: We're pushing the frontier of what's possible, requiring constant innovation and iteration.
• We Work for the Customer: We focus on delivering outsized value to the customers we work with and expanding those relationships into deep, meaningful partnerships.

We believe in being 'everyday athletes'—taking care of ourselves so we can bring our best minds to work. We promote great sleep, movement, and restorative activities for optimal mental performance. It makes for a happier and more productive team.

What We Offer

• Opportunity to shape Blitzy's expansion in India as a founding member of HQ2
• Work with cutting-edge AI technology and Fortune 500 enterprise clients
• Competitive compensation package including equity
• Collaborative, high-performance team environment
• Professional growth opportunities in a fast-scaling startup
• Chance to make significant impact on product direction through customer insights
• Culture that values innovation, technical excellence, and work-life balance

What you'll do:

·         Perform complex application programming activities with an emphasis on mobile development:  Angular, Node, TypeScript, JavaScript, Apache Cordova, RESTful APIs and more

·         Assist in the definition of system architecture and detailed solution design that are scalable and extensible

·         Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible

·         Own the quality of code and do your own testing. Automate feature testing and contribute UI testing framework

·         Become a subject matter expert for our mobile applications

·         Deliver amazing solutions to production that knock everyone’s socks off

·         Mentor junior developers on the team

What we’re looking for:

·         Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.

·         A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.

·         A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.

·         Confidence, not ego. You have an ability to collaborate with others and see all sides of the coin to come to the best solution for everyone.

·         Flexible and willing to accept change in priorities, as necessary

Basic Qualifications: 

·         Minimum B.S. / M.S. Computer Science or related discipline from accredited college or University

·         At least 6 years of experience designing, developing, and delivering web applications with Angular, Node, Typescript, IONIC and JavaScript

·         At least 2 years of experience building iOS-based applications utilizing hybrid technologies

·         At least 2 years of experience with AWS and/or Openshift

·         Experience integrating with native device API’s (iOS)

·         Experience with front-end and/or mobile-specific testing frameworks

·         Strong experience in object-oriented design and development

·         Knowledge of building and consuming RESTful APIs

·         Excellent sense of web design, passionate about creating and refining great mobile user experiences.

·         Ability to manage multiple tasks and consistently meet established timelines   

·         Strong collaboration skills

·         Excellent written and verbal communications skills

Preferred Qualifications:

·         Proficient with Apache Cordova framework

·         Built or maintained custom Cordova plugin

• Demonstrable knowledge of native coding background in iOS

·         Understanding of Apple certificate and profile management

·         Experience developing and deploying applications within Kubernetes based containers

·         Experience in Agile and SCRUM development techniques

Node.js Developer / NestJS Developer – Job Description

A Bachelor’s Degree or Master’s Degree in Computer Science is preferred with excellent problem solving skills.

Job Type: Full-time

Job Location: Bengaluru (on site)

Preferred Skills: TypeScript / Nodejs, SQL/ MySQL

Experience: Min 2yrs in similar Role.

Responsibilities:

• Develop and Maintain Server-side Logic: Design, implement, and maintain the server-side logic using Node.js, ensuring high performance and responsiveness to requests from the front-end.
• API Development: Build and maintain RESTful APIs for seamless integration with front-end services and third-party applications.
• Database Management: Work with databases (such as MongoDB, MySQL, PostgreSQL) to ensure data consistency, reliability, and optimal performance.
• Code Quality and Testing: Write clean, maintainable, and efficient code. Implement automated testing platforms and unit tests.
• Collaboration: Work closely with front-end developers, designers, and other team members to define and implement technical solutions that meet business requirements.
• Troubleshooting and Debugging: Identify issues, debug, and resolve bugs and other technical problems in a timely manner.
• Documentation: Create and maintain documentation related to application development, API usage, and system operations.
• Stay Updated: Keep up-to-date with the latest industry trends and technologies to ensure the application remains modern and competitive.

We are hiring IN OFFICE ONLY.

Office located in the beautiful Astra Towers in Rajarhat Kolkata.

We are looking for Senior Laravel Developers that have experience with Laravel Framework PHP, and VueJs.

You will be working right away with other senior Laravel Developers that know the products. You will be learning the projects, and helping them clean up and polish our tech better. We are a product based company.

A little about us:

Klizo Solutions has over 50 employees and is located in the New Town area, near CC2. Our employees range from graphic designers, back-end developers, iOS and Android Developers, and more. We are primarily a product-focused company. Our founder is from the USA and spends about 6 months a year here going back and forth. We develop technologies around his products and develop products for a few other clients. We are looking to expand to more locations, and are hiring for those reasons. You can see a company video here: https://klizos.com/about-us/

Preferred & Required knowledge and Duties:

• MVC Structure
• SQL concept
• Eloquent Relationships
• HTTP middleware
• Basic knowledge of JQuery
• Basic command of Laravel (How to create Model, Controller, migration, middleware )
• Experience of Vue.js
• Experience with Git
• Experience integrating third-party APIs
• Experience with payment APIs

Required Shifts:

We are expected to work Monday - Friday

We may rarely be needed on a Saturday if a project is required.

BONUS Knowledge (not required):

• MongoDB
• Worked with Jira
• Knows Github / Repo / Source control
• Worked with Bitbucket

Job Types: Full-time, Permanent, In Office

Benefits

• Bonuses based on performance
• Additional training will be available and may be required
• Clean office, professional hardware, and a positive team.