
Numino Labs
Business: Software product engineering services: Pune, Goa.
Clients: Software product companies in the USA.
Business model: Exclusive teams for working on client products; direct and daily interactions with clients
Client
Silicon Valley startup in genAI: 45m+ in funding.
Product: B2B SaaS.
Core IP: Physics AI foundation model for hardware designers with specific focus on semi-conductor chip design.
Customers: World's top chip manufacturers
Responsibilities
- Team player: Delivers effectively with teams; interpersonal skills, communication skills, risk management skills
- Technical Leadership: Works with ambiguous requirements, designs solutions, independently drives delivery to customers
- Hands on coder: Leverages AI to drive implementation across Reactjs, Python, DB, UnitTest, TestAutomation & Cloud Infra & CI/CD Automation.
Requirements
- Strong computer science fundamentals: data structures & algorithms, networking, RDBMS, and distributed computing
- 8-15 years of experience on Python Stack: Behave, PyTest, Python Generators & async operations, multithreading, context managers, decorators, descriptors
- Python frameworks: FastAPI or Flask or DJango or SQLAlchemy
- Expertise in Microservices, REST/gRPC APIs design, Authentication, Single Sign-on
- Experience in high performance delivering solutions on Cloud
- Some experience in FE: Js & Nextjs/ReactJs
- Some experience in DevOps, Cloud Infra Automation, Test Automation

About Numino Labs
About
Similar jobs
Strong Backend Engineer Profiles
Mandatory (Experience 1) – Must have 2+ years of hands-on Backend Engineering experience building production-grade systems in a B2B SaaS or product environment
Mandatory (Experience 2) – Must have strong backend development experience using at least one backend framework such as FastAPI / Django (Python), Spring (Java), or Express (Node.js)
Mandatory (Experience 3) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices
Mandatory (Experience 4) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling and query optimization
Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems (CRMs, payment gateways, ERPs, data platforms, etc.)
Mandatory (Experience 6) – Must have experience working in cloud-based environments (AWS / GCP / Azure) and be familiar with Git-based collaborative development workflows
Mandatory (Domain) – Experience with financial systems, billing platforms, fintech applications, or SaaS revenue-related workflows is highly preferred
Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D
Job Overview:
We are looking for a seasoned Senior Backend Engineer (SDE III) with over 5 years of experience to lead, mentor, and grow a high-performing engineering team. The ideal candidate will have extensive hands-on experience in software development, deep technical expertise, and a proven track record of successfully leading large-scale engineering teams and projects. This role requires strategic leadership, the ability to manage complex technical challenges, and the ability to drive innovation while ensuring operational excellence.As a Backend Lead, you will collaborate with key stakeholders across the business, product management, and operations to ensure alignment with the organization’s goals and play a critical role in shaping the technology roadmap and engineering culture.
Key Responsibilities:
- Leadership and Team Development: Lead and inspire a team of engineers, fostering a culture of innovation, accountability, and continuous improvement. Manage the hiring, training, and career development of engineering staff.
- Strategic Planning: Work closely with senior leadership to develop and implement engineering strategies that support business objectives. Define technology roadmaps and ensure alignment with organizational goals.
- Technical Excellence: Guide the team in designing and implementing scalable, robust software systems. Drive the adoption of best practices in architecture, coding standards, and software testing to ensure high-quality product delivery.
- Project and Program Management: Oversee the successful delivery of engineering projects, ensuring deadlines, quality standards, and budget constraints are met. Use agile methodologies to manage the development process and resolve bottlenecks.
- Cross-functional collaboration: Collaborate with Product Management, Design, Business, and Operations teams to define project requirements and deliverables. Ensure the smooth integration of engineering efforts across the organization.
- Risk Management: Anticipate and mitigate technical risks and roadblocks. Proactively identify areas of technical debt and drive initiatives to reduce it.
- Stakeholder Communication: Act as the technical point of contact for stakeholders, providing regular updates on project progress, resource allocation, and performance metrics. Communicate complex technical concepts to non-technical stakeholders.
Required Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.
- 5+ years of experience in software engineering
- Proven track record of successfully delivering large-scale, high-impact software projects.
- Strong understanding of software architecture, design patterns, and scalable system design.
- Expertise in multiple programming languages and modern development frameworks For this role we require expertise in Python/Django and API Development
- Experience with cloud infrastructure (AWS), microservices, and distributed systems.
- Good experience with MySQL and ElasticSearch. Slight experience with other NoSQL and SQL databases.
- Experience in DevOps, CI/CD pipelines, and infrastructure automation.
- Experience in delivering full-stack B2B/SaaS applications including mobile applications, web frontend, and a scalable backend.
- Excellent problem-solving skills, with the ability to diagnose and resolve complex technical challenges.
- Strong communication and interpersonal skills, with the ability to influence and inspire teams and stakeholders at all levels.
Desired Experience
3+ years
Job Description
What You’ll Do
- Design financial systems for scale. Measure, plan, iterate.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Setup and own the engineering architectures built around event sourcing, application sharding, database sharding, service communication mesh, etc.
- The tech: Go, Google Cloud Spanner, Kafka, Redis
What you bring to the table
- 3+ years of experience. Relevant experience is preferred.
- Knowledge of 2 common programming languages - Python & Go / Java & Node / Rust
- Comfortable in linux command line, AWS or GCP
- Strong unit test and debugging skills
- Great communication skills
Bonus if you have…
- Love building great products and engineering systems from scratch
- Are a Self-starter, Hustler and Curious to Learn
- Have an understanding of fundamental design principles behind a scalable application
- Thrive in an early-stage startup environment with less stability and more ambiguity
- Have an interest in financial products and/or cryptocurrency
Merchify is a one-stop solution for creators to start their merch store for zero investment. Our goal is to empower creators to monetize their content and grow their audience without the need for any upfront investment.
We’re in search of a back-end engineer that specializes in building highly scalable, highly available, reliable, secure, and fault-tolerant systems. As a part of the Core Backend team, you'll be working on some complex and interesting problems. With a lean team like ours, you'll have ample opportunities to work with various aspects of the application and build something meaningful.
What you'll do?
- Work closely with design, product management, and front-end teams to create REST APIs using NestJS
- Write reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Work on the implementation of security and data protection
- Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively
Must haves
- 1+ years of experience in NodeJS-based frameworks like NestJS, and microservices-based architecture is a bonus.
- Understanding of OOPS concepts, persistence, threading, queuing, and caching.
- Thorough knowledge of designing, implementing and scaling relational and document-based databases
- A love for systems and an ability to think through and plan for their life cycles, edge cases, interactions, and failure modes
- First principles thinking, Excellent problem-solving ability
- A good all-rounder with a can-do, startup mentality
Nice to haves
- Experience with ReactJS
- Cloud deployment and scaling experience
Why you should join today?
Merchify wants to make a change for the better in lifelong learning. By joining at the start of the adventure you will have an opportunity to make this your own baby and have fun shaping the future of the industry.
Responsibilities:
- Develop the core platform components.
- Work on integrations with 3rd party systems.
- Co-ordinate with frontend team, designers, and product managers on development requirements
Requirements:
- At least 3 years of experience in developing and managing software systems.
- Proficiency in programming, data structures and algorithms.
- Deep understanding of caching technologies, databases and OOPS.
- Computer science degree from a tier1 college is a MUST.
- Experience in Python is preferred.
YOUR RESPONSIBILITIES
- Development and unit testing of web applications including back-end (microservices), maintenance & level 3 support of the same
- Assist Project Managers, Business Analysts, and Tech Lead in project planning (provide estimates, risk analysis, requirements analysis, technical options)
- Software Architecture
- Involvement in full life cycle of projects (including requirement analysis and system design, development and support if required)
- Support and work collaboratively with teams across areas of design, development, quality assurance and operations
- Commit your knowledge and experience into team success
- A small amount of travel (when needed) to work with other offices
- Attend meetings to discuss and demonstrate solutions at both technical and business level
REQUIRED SKILLS AND EXPERIENCE
- 5+ years web application development experience
- 3+ years developing with Python
- 3+ years developing with C# and .NET Framework 4.x
- Experience with ASP.NET MVC, ASP.NET WebAPI 2, LINQ, and WCF
- Dependency Injection and other common ASP.NET MVC design patterns
- Experience with API design and development using REST
- Experience with performance optimization
- Experience integrating security best practices into the SDLC
- Experience with object-oriented programming (OOP) and OOP patterns
- Experience with Git
- 1+ years of Agile development experience
- Experience manipulating and working with data in a variety of forms: csv, xml, json, structured and unstructured
- Experience with SQL database schema design and querying. Microsoft SQL Server and PostGreSQL are used and preferred.
DESIRABLE SKILLS AND EXPERIENCE
- Knowledge of JIRA, Bamboo, Confluence, or BitBucket is a plus.
- Experience with a JavaScript MVVM library such as Web Components, knockout.js, Angular, React, etc. is a plus (Web Components and knockout.js are used and preferred)
- Experience with HTML5/CSS3/JavaScript/ and AJAX is a plus
- SPA (Single Page Application) design and implementation is a plus
- Experience with any ORM such as Entity Framework or NHibernate is a plus (NHibernate is preferred)
- Experience with TypeScript is a plus
- Experience with MS Build is a plus
- Experience with CI/CD is a plus
- Experience with Object Mapping Frameworks (AutoMapper, etc) is a plus
- Understanding of OOD, DDD and TDD is a plus
- AWS-based development is a plus
- Knowledge of Flask is a plus.
PERSONAL SKILLS
- Clever personality
- Strong spirit skills set: conflict resistant, self -motivated, result-oriented, responsible, honest, “open”, courageous










