Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones, accelerating their transformation into techcos.

Today, Circles partners with leading telco operators across multiple countries and continents, including KDDI Corporation, Etisalat Group (e&), AT&T, and Telkomsel, creating blueprints for future telco and digital experiences enjoyed by millions of consumers globally.

Besides its SaaS business, Circles operates three other distinct businesses:

Circles.Life: A wholly-owned digital lifestyle telco brand based in Singapore, Circles.Life is powered by Circles SaaS platform and pioneering go-to-market strategies. It is the digital market leader in Singapore and has won numerous awards for marketing, customer service, and innovative product offerings beyond connectivity.
Circles Aspire: A global provider of Communications Platform-as-a-Service (CPaaS) solutions. Its cloud-based Experience Cloud platform enables enterprises, service providers and developers to deliver and scale mobile, messaging, IoT, and connectivity services worldwide.
Jetpac: Specializing in travel tech solutions, Jetpac provides seamless eSIM roaming for over 200 destinations and innovative travel lifestyle products, redefining connectivity for digital travelers. Jetpac was awarded Travel eSIM of the Year.

Circles is backed by renowned global investors, including Peak XV Partners (formerly Sequoia), Warburg Pincus, Founders Fund, and EDBI (the investment arm of the Singapore Economic Development Board), with a track record of backing industry challengers.

Sr Software Engineer - Platform (AI-Accelerated)

Company: Circles.Life – Jetpac

Location: Gurgaon or Pune (Hybrid)

Type: Fulltime

About Jetpac

Jetpac, from Circles, is building a seamless way for travelers to stay connected globally. We offer eSIMs across 200+ destinations with a fast-growing consumer platform spanning web, mobile, and partner channels targeting the travel essentials segment.

We operate as a high-velocity product team. Small teams, fast decisions, and direct ownership. We ship continuously, iterate quickly, and measure what matters.

The Role

The nature of software development has changed significantly in the last year, and we've evolved how we build products. Our platform team builds and scales the core systems that power Jetpac's consumer experience across 200+ countries.

This role is for engineers who:

think in systems, not just features
operate with high ownership
can define what good looks like across reliability, performance, and developer velocity

We've reached meaningful scale and are rebuilding key parts of the platform to support the next phase of growth. You'll work closely with engineers, product, design, and business teams to deliver foundational capabilities that unlock entire categories of product development.

What You'll Do

Build and scale core consumer platform systems across web and backend
Own features end-to-end: design, build, deploy, and iterate
Use AI-assisted workflows across coding, testing, debugging, and review
Structure workflows where AI can reliably generate and improve code
Identify and solve bottlenecks in performance, reliability, and developer productivity
Build shared components and internal tooling to improve team velocity
Improve observability, debugging, and system reliability

Focus areas include:

API performance and backend systems
Caching and data access patterns
Experimentation, analytics, and event pipelines
Localization and global readiness

Required Skills and Experience

3 –5 years of professional software engineering experience
Strong backend fundamentals with experience building production systems
Experience designing APIs, services, and scalable data models
Strong product judgment able to balance speed, quality, and long-term maintainability
Comfortable working in modern stacks (Go)
Experience with AWS cloud infrastructure

Critical requirement:

Hands-on experience using AI-assisted or agent-based development workflows in real projects
Ability to review, debug, and improve agentic AI-generated code
Understanding of how to structure workflows so AI-generated output is reliable and production-ready

Familiarity with:

Postgres, Redis or similar data stores
Caching and performance optimization techniques
Authentication and identity systems
Observability and monitoring tools
Event pipelines and analytics systems

Example Projects You'll Work On

Redesign and scale the cart and checkout system to support multi-product flows and high concurrency
Build a shared platform layer for rewards, pricing, and promotions across multiple product lines
Improve page load performance and API latency across global markets
Design observability systems to detect and debug issues in real time
Build internal workflows where AI systems assist in generating, testing, and validating production code
Reduce development cycle time by creating repeatable AI-assisted engineering workflows
Evolve platform architecture to support new product categories and integrations

What Success Looks Like

You deliver high-quality features in days, not weeks
You reduce system complexity while improving performance and reliability
You proactively identify and solve bottlenecks
You increase overall team velocity through better systems and workflows

Hiring Process

Technical Intro with CTO
Live Practical Assignment (build + explain your approach, including AI usage)

Why Jetpac

High ownership, low bureaucracy
Real product impact at global scale
Fast-moving team with strong engineering culture
Flexible work setup across global teams

Circles is committed to a diverse and inclusive workplace. We are an equal opportunity employer and do not discriminate on the basis of race, national origin, gender, disability or age.

Data Protection and Privacy Statement

By submitting an application for this position, you, as the applicant, or your authorised representative(s), consent toCircles Candidate Data Protection and Privacy Policy. You also agree to the collection, use, and/or disclosure of your personal data by us solely for recruitment purposes as specified in the Policy. You acknowledge that you have read and understood the Policy, are aware of your rights regarding your personal data, and accept the terms relating to international data transfers, where applicable. You further understand that you may withdraw consent at any time, which may affect our ability to consider your application. In instances where your personal data or application is submitted by a third party, it is understood that such third party has been duly authorised by you to disclose the relevant personal data and provide consent on your behalf, and that you have been made aware of this Policy.

To all recruitment agencies: Circles will only acknowledge resumes shared by recruitment agencies if selected in our preferred supplier partnership program.

Please do not forward resumes to our jobs alias, Circles, employees or any other company location. Circles will not be held accountable for any fees related to unsolicited resumes not uploaded via our ATS.

Senior Software Engineer (Golang) (AI-Accelerated) - Jetpac