Senior Software Engineer - Fullstack

United States Digital Space LLC; Maharashtra; On-site; INR 1,500,000 - 3,000,000; Full time

Benefits offered by this job

Private medical insurance

Life insurance

Pension scheme

Birthday off

25 days paid holiday

Job summary

United States Digital Space LLC in India is seeking a Senior Software Engineer to build multi‑million dollar media decision tools. You’ll work across the full stack, from responsive frontend to scalable backend microservices, and help shape system design as we scale.

This hands‑on role requires owning features end‑to‑end, collaborating with engineers, PMs, and AI agents in an AI‑first operating model, plus a drive for quality, performance, and learnings in a fast, ambitious environment.

Qualifications

• Around 5+ years of professional experience as a full‑stack / senior software engineer.
• Strong frontend with React.js or Next.js and solid backend microservices in Python.
• Experience contributing to system design and infrastructure decisions.
• Comfort handling full‑stack ownership and agile workflows.
• Attention to detail and ownership mindset for high‑quality software.
• Wamiliarity with AI‑driven development is a plus.

Responsibilities

• Design, build, and maintain full stack features from frontend UI/UX through to backend services.
• Contribute to system design and infrastructure decisions as the company scales.
• Engage in the full SDLC from planning, through execution, to production monitoring.
• Write clean, well‑tested code and promote engineering best practices.
• Collaborate with product managers, designers, and engineers to translate requirements into working software.
• Build and consume REST/GraphQL APIs connecting frontend experiences to backend services.

Skills

React.js

Next.js

Python microservices

System design

APIs (REST/GraphQL)

Agile team experience

Job description

About the company

The company is dedicated to building the world’s most powerful measurement solution for online retail. For over a decade, we've helped teams make smarter decisions with full‑funnel marketing insights, forecasting, and optimisation. With the company, every team moves faster and grows smarter. Trusted by over 200 leading brands across three continents, including Huel, Oh Polly, and Represent, the company manages $2.5 billion in annual ad spend.

Founded and backed by Blenheim Chalcot, the company combines startup agility with the scale, expertise, and support of one of the world’s leading venture builders.

Ready to make your mark? Let's go!

The Role

As a Senior Software Engineer, you’ll build the products our customers rely on every day to make multi‑million dollar media decisions. You’ll work across the full stack—from crafting responsive, intuitive frontend experiences through to designing and scaling the backend microservices that power them—and, given the seniority of this role, you’ll also help shape system design and infrastructure decisions as we scale.

You’ll work alongside engineers, product managers, and AI agents as part of our AI‑first operating model, where lean, high‑autonomy teams ship fast and learn faster. This is a hands‑on engineering role for someone who’s comfortable owning a feature end‑to‑end—from initial design through to production—and who wants to grow their craft in a fast‑moving, ambitious environment.

Where you’ll focus

• Frontend development using modern JavaScript frameworks (React.js or Next.js)
• Backend development using Python‑based microservices
• System design and infrastructure, contributing to architectural decisions as we scale
• End‑to‑end feature ownership across the stack
• (Nice‑to‑have) Exposure to Data Science / Data Engineering workflows

Key Responsibilities

• Design, build, and maintain full stack features – from frontend UI/UX through to backend services and APIs in Python.
• Contribute to system design and infrastructure decisions, helping evolve our technical foundations as we scale.
• Get involved across the full Software Development Lifecycle, from initial planning and design through execution, release, and monitoring in production.
• Write clean, well‑tested, maintainable code, and champion good engineering practices across the team.
• Collaborate closely with product managers, designers, and fellow engineers to translate requirements into working software.
• Build and consume APIs (REST/GraphQL) that connect frontend experiences to backend services.
• Work with AI agents as part of our AI‑first operating model, using clear specifications to shape high‑quality, AI‑assisted engineering work.
• Take ownership of the quality, performance, and reliability of the features you ship.
• Participate in code reviews, giving and receiving candid, constructive feedback.
• Stay curious about new tools and technologies, including opportunities to explore Data Science / Data Engineering problems as they arise.

What we’re looking for

You should apply if you:

• Have around 5+ years of professional experience as a full‑stack / senior software engineer, with a balanced skill set across frontend, backend, and infrastructure.
• Have strong, hands‑on experience with front‑end technologies such as React.js or Next.js, and solid backend experience building and maintaining Python‑based microservices.
• Are comfortable contributing to system design and infrastructure decisions, reflecting the seniority of this role.
• Are comfortable working across the full stack and can move fluidly between frontend, backend, and infrastructure concerns.
• Have solid experience working in an agile environment and know how to embed quality into fast‑moving teams.
• Bring exceptional attention to detail and a genuine ownership mindset over what you build.
• Are enthusiastic about new technologies, with the ability to adapt and learn quickly – we’re open to candidates with strong experience in other modern languages/frameworks if the core skill set and seniority are a strong match.
• Have awareness of spec‑driven AI development and how clear specifications shape the quality of AI‑assisted engineering work.
• Have the confidence and initiative to evolve ideas and pull pieces of work together into meaningful change.
• Have an active interest in self‑learning and growing your craft.
• (Nice‑to‑have) Exposure to Data Science / Data Engineering (not core to the role, but a strong plus).

You don't have to tick every box. If you're a strong engineer who's hungry to step up, we'd still like to hear from you.

Our Values and Principles

• Seek inclusion & diversity: We create an environment where everyone feels welcome, and people are encouraged to speak and be heard.
• Work Hard, Work Well, Work Together: We take responsibility for making things happen, independently and together; we help colleagues in need and close loops, making sure our work is complete and has lasting impact.
• Grow: We are proactive, curious and unafraid of failure.
• Customer at the heart: We care about the customer, feel their pain and love building product that solves their biggest problems.
• Candour with caring: We deliver candid feedback with kindness and receive it with gratitude.

Above all, our people show a willingness to work together and get their hands dirty to deliver product success, which means our customers are successful!

What we offer

• Competitive salary
• Be part of a leading global venture builder, Blenheim Chalcot, and learn from the incredible talent in BC.
• Be exposed to the right mix of challenges and learning and development opportunities.
• Flexible benefits including private medical subsidiaries, life assurance, pension scheme etc.
• 25 days of paid holiday + your birthday off!
• Quarterly team socials