Senior Backend Engineer

Hello, Truecaller is calling you from Bangalore, India! Ready to pick up?

Our goal is to make communication smarter, safer, and more efficient, all while building trust everywhere. We're all about bringing you smart services with a big social impact, keeping you safe from fraud, harassment, scam calls or messages, so you can focus on the conversations that matter.

• Top 20 most downloaded apps globally, and world’s #1 caller ID and spam-blocking service for Android and iOS, with extensive AI capabilities, with more than 400 million active users per month. 
• Founded in 2009, listed on Nasdaq OMX Stockholm and is categorized as a Large Cap. Our focus on innovation, operational excellence, sustainable growth, and collaboration has resulted in consistently high profitability and strong EBITDA margins.
• A team of 400 people from ~35 different nationalities spread across our headquarters in Stockholm and offices in Bangalore, Mumbai, Gurgaon and Tel Aviv with high ambitions. 

We at Ads Product are all about making Ads more meaningful & relevant to our users and help drive marketing objectives for our partners/advertisers. Ads is one of the ways Truecaller monetizes the APP, and thus holds a critical role in driving Truecaller revenues. Truecaller is one of the largest standalone publishers in India and emerging markets like Egypt, North Africa etc. 

Mission - The Ads team is responsible for monetizing Truecaller inventory through ads by offering targeted advertising solutions to our demand partners.

Responsible for - Driving revenue growth for Truecaller by building ads solutions and selling our ads offerings to our advertiser partners in India and outside.

We work at a planetary scale, serving billions of ad impressions daily. Our APIs handle a massive load, with some reaching 300K requests per second. This is serious performance engineering!

The Truecaller app is on over 400 million devices globally, and our code needs to run flawlessly on all of them. We leverage the latest tech like Jetpack Compose and Kotlin to ensure efficiency and maintainability.

As a Senior Backend Engineer in the Truecaller Ads team, your typical day or week will be filled with a blend of technical challenges, collaboration, and innovation. Here’s what you can expect:

What you bring in:

• 5-9 years of experience as BE developer in a start-up or product based environment.
• Excellent knowledge of  any modern programming (GO, Java, Scala) language.
• Good understanding of Data structures and Algorithms.
• Experience of designing and architecting large scale distributed systems. (Someone coming from consumer facing companies, so that he /she can work on the scaling front and learn how products are built for end-users will be an added advantage)

The impact you will create: 

• Coding & Development: A significant portion of your day will involve hands-on coding, building scalable backend services, APIs, and microservices that power Truecaller’s Ads platform. You’ll focus on high-availability, low-latency systems using modern tech stacks.
• Code Reviews: Review code written by peers to maintain high-quality standards, share best practices, and continuously improve the codebase.
• Problem Solving: Troubleshoot complex technical issues, optimize existing systems for better performance, and ensure high system reliability.
• Collaborating with Cross-Functional Teams: Work closely with product managers, front-end developers, data scientists, and other stakeholders to ensure the features you build align with business needs and provide a seamless user experience.

• Design & Architecture Discussions: You’ll contribute to architectural decisions, ensuring that systems are designed to scale and meet the future needs of Truecaller Ads.
• Team Collaboration & Mentorship: Provide mentorship to junior engineers, assist in resolving complex technical issues, and share knowledge across the team through informal or formal knowledge-sharing sessions.
• Delivering Features: You’ll contribute to feature development, deploy code into production, and ensure smooth integration with the rest of the platform.
• Sprint Planning & Backlog Grooming: You will participate in sprint planning sessions(bi-weekly) where you’ll break down tasks, prioritize work, and ensure alignment with the overall product roadmap.

It would be great if you also have:

• Experience with microservices architecture and design patterns and solid design principles.
• Hands-on experience in building large scale platforms & services using Go, Scala, Play, Redis, Aerospike, Kafka & Nosql stores.
• Experience with GCP or any other public cloud.

Life at Truecaller - Behind the code:  https://www.instagram.com/lifeattruecaller/

Sounds like your dream job?

We will fill the position as soon as we find the right candidate, so please send your application as soon as possible. As part of the recruitment process, we will conduct a background check.

This position is based in Bangalore, India. 

We only accept applications in English. 

What we offer: 

• A smart, talented and agile team: An international team where  ~35 nationalities are working together in several locations and time zones with a learning, sharing and fun environment. 
• A competitive compensation package: Competitive salary, 30 days of paid vacation, flexible working hours, private health insurance, parental leave, telephone bill reimbursement, Udemy membership to keep learning and improving and Wellness allowance.
• Great tech tools: Pick the computer and phone that you fancy the most within our budget ranges. 
• Office life: We strongly believe in the in-person collaboration and follow an office-first approach while offering some flexibility. Enjoy your days with great colleagues with loads of good stuff to learn from, daily lunch and breakfast and a wide range of healthy snacks and beverages. In addition, every now and then check out the playroom for a fun break or join our exciting parties and or team activities such as Lab days, sports meetups etc. There is something for everyone!

Come as you are: 

Truecaller is diverse, equal and inclusive. We need a wide variety of backgrounds, perspectives, beliefs and experiences in order to keep building our great products. No matter where you are based, which language you speak, your accent, race, religion, color, nationality, gender, sexual orientation, age, marital status, etc. All those things make you who you are, and that’s why we would love to meet you.