ApplySarthiPrincipal Fullstack/Backend Software Engineer, User Connections
Roblox
Tailor my CV for this job, freeView job and applyYour CV rewritten for this role, from your real experience. Sign in with Google, nothing to install.
Got this interview? Our apps help you get the job.
Skills named in this job
Read from the description itself, not inferred.
This role on the market
26 open connections roles across 10 companies are on ApplySarthi right now, most of them in Chennai (4).
- Executive Assistant II, Alexa Connections, Alexa ConnectionsAmazon
- Payroll Connections SpecialistHuman Interest
- Team Leader, Engineering - Financial Connections Rocket Money
- Associate, Process Management – Associate Insights & Connections | Retail BankCapitalone
- Product Manager, ConnectionsNotion
What connections roles keep asking for: Generative AI (19%), LLMs (15%) — counted across their open postings here.
C# jobs · C++ jobs · Express jobs · Java jobs
Roblox has 279 open roles listed here.
- Senior Security Engineer, Detection and Response
- Account Manager
- Principal Data Scientist, Economy Recommendations
- Sales Solution Specialist
- Senior Data Scientist, Marketplace Economics
Counted across 14 company job boards, updated as roles open and close.
Preparing for this interview
Interviews for connections roles keep coming back to Generative AI, LLMs. Practise those questions before you sit with Roblox.
Questions you are likely to be asked
- Why do you want to join Roblox?
- What is your experience with Express? Tell me one thing you learned the hard way.
- What do you do when a production issue happens on your code?
- Walk me through a system you built. How was it designed, and what would you change now?
- Tell me about a hard bug you tracked down. How did you find the cause?
Prep Sarthi gives you a free mock interview: an AI interviewer asks you questions like these out loud, from your own CV and this job, and shows your score and your weakest answer.
Practise the Principal Fullstack/Backend Software Engineer, User Connections at Roblox interview free →Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators.
At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there.
A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone.
As a Principal Software Engineer on the User Connections team, you will define the backend systems that power the social ecosystem ranging from Friending, Profiles (Identity + Expression), and other Social engagement. You will be a team lead, influence service architecture designs, and guide the team’s roadmap both in technical and product domains.
Your work will power the Roblox ecosystem, helping people recognize and connect with friends & interests on Roblox, express themselves, and discover & engage with the best of Roblox through their connections. You will own critical features used by millions of users daily, such as profiles, names, online presence, co-play tools, as well as develop new zero-to-one features. You will drive company-level objectives for user engagement.
If you are an experienced developer with a deep understanding of large scale systems and enjoy shaping engineering and product vision, you’ll be a great fit for this team.
This role is based at Roblox HQ in San Mateo, CA (no remote option).
You Will:
- Tech lead the engineering team
- Lead the design and implementation of scalable backend systems to support hundreds of millions of users.
- Enforce high quality standards throughout feature development and iteration.
- Collaborate with other engineering, product, and design teams to define and build platform features to enable users to express their identities
- Mentor engineers and uplevel the team
You Have:
- 8+ years of experience designing, building, and supporting highly available and large-scale distributed fault tolerant services in production environments
- Extensive knowledge of server-side architecture and design principles, with proficiency in compiled languages such as C#, Java, C++, or others.
- Bachelor's degree or higher in Computer Science or a related field.
- (Bonus) Experience with social products is a plus.
You Are:
- Proactive: You operate with a sense of urgency, initiating conversations and workflow that pushes team projects and people forward
- A Leader: You have initiated and facilitated challenging technical decisions across multiple teams and organizations.
- Scrappy: You are willing to dive into any tech stack to solve problems, and can easily adapt to any situation when the need arises and come up with the right solution.
- A product owner: You champion for changes that align with the needs of our users
For roles that are based at our headquarters in San Mateo, CA: The starting base pay for this position is as shown below. The actual base pay is dependent upon a variety of job-related factors such as professional background, training, work experience, location, business needs and market demand. Therefore, in some circumstances, the actual salary could fall outside of this expected range. This pay range is subject to change and may be modified in the future. All full-time employees are also eligible for equity compensation and for benefits as described on this page.
Roles that are based in an office are onsite Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday (unless otherwise noted).
Roblox provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. Roblox also provides reasonable accommodations to candidates with qualifying disabilities or religious beliefs during the recruiting process.
For US based roles only, please note the Company may not be able to employ candidates for this role who have United States work authorization related to certain U.S. visa categories, or support future H-1B sponsorship at this time.
Match this job to your CV
ApplySarthi scores your CV against this role, shows the skills you are missing, and writes a tailored version for the application.
Check my match →Similar open roles
- Senior Data Analyst- Scaled ModerationRoblox · delhi ncr
- Developer Engagement Representative - LATAM (Part-Time Contract)Roblox
- Global Developer Engagement Representative, Part-Time, ContractorRoblox
- Proactive Moderation Operations SpecialistRoblox · delhi ncr
- ReceptionistRoblox · delhi ncr
- Support Escalations SpecialistRoblox · delhi ncr
- Law Enforcement Liaison, KansasRoblox
- [2027] Associate Product Designer, Early CareerRoblox
Need answers during your interview? Try Live Sarthi.
Live Sarthi, an Interview Sarthi app, shows answer suggestions during the call.
- Hidden from supported screen sharingThe overlay stays out of supported Windows screen captures.
- Answers start in about 1.5 secondsResponse time varies with your connection and model.
- From your own CVYour projects and your experience, not a generic script.
- 30 minutes freeThen ₹149 for a 2-day pass with unlimited calls — you pay for the days you are interviewing, not a subscription.
A Windows app, from the same team as ApplySarthi.
Listed on greenhouse · posted 2026-03-27. ApplySarthi collects openings and links to application pages; the role is advertised by Roblox, not by us.