Senior Software Engineer - Fullstack (Python/Reactjs)

BlackLine; India; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

BlackLine is seeking a Senior Full Stack Engineer with an AI-first mindset to design, build, and operate scalable SaaS applications. You will own the stack end-to-end from UX/UI to distributed backend services, embedding AI-driven capabilities into core product functionality.

You will lead frontend and backend development across Go, Python, REST APIs, microservices, and cloud platforms, while modernizing legacy services and driving performance and security at scale.

Qualifications

• BS/MS in Computer Science or equivalent practical experience.
• 6+ years of professional software engineering across frontend and backend.
• 3+ years building highly optimized web applications or SaaS platforms.

Responsibilities

• Full stack design & delivery from UX/UI to backend services with quality delivery.
• Backend engineering with Go/Python, REST APIs, microservices, production readiness.
• AI-first engineering to integrate AI capabilities into product features.

Skills

Go

Python

SQL

Distributed systems

Microservices

C# / .NET

Education

BS/MS in Computer Science

Tools

Docker

Kubernetes

Kafka

RabbitMQ

AWS/Azure/GCP

Job description

Make Your Mark: We're not looking for someone who checks boxes; we're looking for someone who takes pride in their craft, owns their work end-to-end, and genuinely cares about the customers using what they build. You'll be trusted, heard, and challenged to do the best work of your career.

If that sounds like you, we'd love to meet you!

Role Overview - We are seeking a Senior Full Stack Engineer with an AI-first mindset and a strong passion for solving complex technical and business problems, combining deep backend systems expertise with strong frontend engineering capabilities to design, build, and operate scalable, secure, and high-performing SaaS applications.

- This role requires end-to-end ownership across the technology stack from intuitive UX/UI components to distributed backend services while embedding AI-driven capabilities such as intelligent automation, data-informed experiences, and AI-assisted workflows into core product functionality, influencing system architecture, engineering standards, and modernization.

- You'll Get To:

Responsibilities

• Full Stack Design & Delivery Provide technical leadership across frontend and backend development, including requirements analysis, system design, effort estimation, implementation, testing, and delivery. Design, develop, test, optimize, scale, maintain, and evolve user-facing UI components and backend services to deliver high-quality features to customers. Translate explicit and implicit product requirements into clear functional and technical specifications, architecture diagrams, and test plans. Review code across the stack and provide constructive guidance to ensure quality, consistency, and maintainability.
• Backend Engineering Design and build highly scalable, secure, and resilient distributed backend services using Go and Python, with a strong focus on concurrency, performance, and production readiness. Develop and maintain RESTful APIs, microservices, backend workflows, and platform services. Drive the modernization and migration of legacy .NET/C# services into Go/Python-based microservices or cloud-native platforms.
• AI-First Engineering Proficiency using AI-assisted development tools (e.g., coding copilots, intelligent IDEs, test generation, code review assistants, and documentation tools) to improve developer productivity, code quality, and delivery speed. Experience designing, integrating, or consuming AI-powered services or agents within full stack applications. Capability to evaluate emerging AI tools and frameworks, benchmark their impact, and recommend practical adoption paths aligned with business outcomes and engineering standards. Comfort collaborating with product, design, and platform teams to translate AI capabilities into real customer value, not just experimental features.

What You'll Bring

Technical / Specialized Knowledge, Skills & Abilities

Experience & Education BS/MS in Computer Science or equivalent practical experience.

6+ years of professional software engineering experience, including significant work across both frontend and backend systems.

3+ years of experience building highly optimized web applications and/or SaaS platforms.

Backend Technical Skills

• Strong hands‑on experience with Go or Python. Experience with Go modules, Python packaging, dependency management, and service structuring.
• Solid experience with SQL and relational database design, transactional systems, and query optimization.
• Strong understanding of distributed systems, microservices, and multi‑tenant SaaS architectures.
• Experience working with or modernizing C# / .NET Framework or .NET Core systems.

Frontend Technical Skills

• Expert knowledge of HTML5, CSS3, JavaScript, and TypeScript.
• Strong experience with modern frontend frameworks (React, Angular, Vue, or similar).
• Experience building Single Page Applications (SPA)s and optimizing frontend performance.
• Experience with Micro-Frontend (MFE) architectures, including frontend modularization, domain-driven UI boundaries, and shared design systems.

Cloud, Platform & Ecosystem

• Hands‑on experience with a major cloud platform (AWS, Azure, or GCP), containerization (Docker, Kubernetes/Nomad), API gateways, OAuth2/OIDC-based IAM, and messaging systems such as Kafka or RabbitMQ.

Thrive at BlackLine Because You Are Joining

A technology-based company with a sense of adventure and a vision for the future. Every door at BlackLine is open. Just bring your brains, your problem-solving skills, and be part of a winning team at the world's most trusted name in Finance Automation! A culture that is kind, open, and accepting. It's a place where people can embrace what makes them unique, and the mix of cultural backgrounds and varying interests cultivates diverse thought and perspectives. A culture where BlackLiner's continued growth and learning is empowered. BlackLine offers a wide variety of professional development seminars and inclusive affinity groups to celebrate and support our diversity.

BlackLine is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity or expression, race, ethnicity, age, religious creed, national origin, physical or mental disability, ancestry, color, marital status, sexual orientation, military or veteran status, status as a victim of domestic violence, sexual assault or stalking, medical condition, genetic information, or any other protected class or category recognized by applicable equal employment opportunity or other similar laws.

BlackLine recognizes that the ways we work and the workplace itself has shifted. We innovate in a workplace that optimizes a combination of virtual and in-person interactions to maximize collaboration and nurture our culture. Candidates who live within a reasonable commute to one of our offices will work in the office at least 3 days a week.

Accommodations

BlackLine is committed to creating an inclusive and accessible experience for all candidates. If you require a reasonable accommodation that would better enable your success during the application or interview process, please complete this form.

Wondering what it's like to work at BlackLine? Don’t take our word for it. We've been voted Best Place to Work by Inc. Magazine four years in a row. Built in LA ranks us in their top 100 Best Places to Work in LA. Reviewers on Glassdoor say we have "smart and kind people," "phenomenal culture," and "good work/life balance." Sound good? Check out our open positions and see if there's a fit for you.

At BlackLine, we follow a comprehensive recruitment process which is undertaken by our talent acquisition team. We conduct personal interviews of all potential job seekers and do not follow practice of making employment offers based solely on a candidate’s resume.