
Staff Backend Engineer - AI Agents (Python, RAG, Vertex AI)
at Technology, Information and Internet
Company Description
Recruiting Bond International is a next-generation Talent Intelligence, Executive Search, and Human Capital Advisory firm helping start-ups, enterprises, GCCs, and VC/PE-backed companies build high-impact global teams. It is a global leader in Recruitment Process Outsourcing (RPO), executive search, and workforce consulting, specializing in building transformative talent strategies.
From high-growth startups to Fortune 500 companies, Recruiting Bond partners with organizations across 50+ industries and 140+ countries to deliver fast, scalable, and inclusive hiring solutions. The company supports businesses in scaling teams, fostering innovation, and creating talent-first strategies to achieve their goals.
With deep expertise across Technology, FinTech, Healthcare, Real Estate, and Energy, Recruiting Bond is dedicated to building careers, companies, and futures by connecting world-class talent with high-impact opportunities globally.
About the Role
Our client is hiring a Backend Engineer (India-based, Remote) to design, build, and scale the core memory infrastructure powering production-grade AI agents.
This role is intended for an experienced engineer with 7–10 years of backend engineering experience, who has deeply internalized AI-native engineering practices and actively builds using tools such as Claude Code, Codex, Cursor, Windsurf, or comparable AI development tools as a core part of their workflow.
The hiring process is intentionally non-traditional and skill-first. There is no evaluation based on IIT pedigree, LeetCode performance, or conventional resume filters. Instead, the only evaluation criterion is: how you build with AI in real-world scenarios.
Candidates are expected to submit prompt logs or transcripts from Claude Code, Codex, Cursor, or Windsurf demonstrating a feature or product they are proud of.
What You'll Own
- Build and scale backend systems powering the memory infrastructure of the product
- Own and deliver features end-to-end, integrating AI coding tools into the core development workflow
- Design, manage, and optimize database, storage, and retrieval systems for persistent memory
- Collaborate closely on system architecture, scalability, performance, and reliability engineering
- Contribute directly to product roadmap decisions based on real customer usage and production insights
Requirements
Must-Have
- 7–10 years of backend engineering experience
- Demonstrated ability to build with AI coding tools (Claude Code, Codex, Cursor, Windsurf, or comparable)
- Ability and willingness to submit prompt log transcripts from a feature or product you are proud of
- Strong Python fundamentals
- Strong PostgreSQL or comparable relational database fundamentals
- Comfort owning systems end-to-end in production
- Based in India, remote work from anywhere in the country
Nice-to-Have
- Prior AI infrastructure or developer tools product experience
- FastAPI fluency
- Open-source contributions in AI, memory, vector databases, or developer tools
- Prior experience in memory systems, RAG pipelines, or vector database engineering
- Public technical writing or conference talks on AI-native engineering practices

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Backend Developer
📍 Noida | 🕐 Full-Time | 🧭 Experience: 2–3 Years
The Mission
We aren't building traditional backend systems — we're powering the infrastructure behind Agentic Intelligence. TestMu AI is building the world's first AI-native platform where backend systems don't just serve requests, they enable autonomous decision-making, execution, and scale.
The name "TestMu" comes from our community conference. Our users and team aren't an audience — they're the heartbeat of what we build. We believe AI augments human potential. It doesn't replace it.
You'll be building the core backend systems that power AI-driven workflows — ensuring high performance, scalability, and reliability at every layer.
The Pillars of Impact
🚀 1. Core Backend & System Architecture (50%)
- Build and scale high-performance backend services and APIs
- Design efficient database schemas, query optimization, and data flows
- Write clean, logical, production-grade code (Python, Golang, or similar)
- Own system performance — latency, throughput, and reliability
⚙️ 2. Backend for AI Systems (30%)
- Develop backend systems supporting AI agents and autonomous workflows
- Handle large-scale data processing, async tasks, and event-driven systems
- Integrate backend infrastructure seamlessly with AI/ML components
🧠 3. Scalability & Distributed Systems (20%)
- Contribute to microservices architecture and service decomposition
- Build fault-tolerant, highly available distributed systems
- Optimize systems for high concurrency and real-time execution
Your Engineering Stack
Tech/ToolsPython / GolangBuilding core backend services and logic-heavy systemsAWS / GCPDeploying and scaling distributed backend infrastructureKafka / RabbitMQHandling asynchronous processing and event-driven workflows
The Bar
SignalCore Backend Experience2–3 years of hands-on experience building APIs, backend systems, and scalable servicesProblem-Solving AbilityStrong fundamentals in data structures, algorithms, and logical thinkingSystem Design UnderstandingAbility to design scalable backend systems with clear architectural thinkingOwnership & ExecutionExperience owning backend features end-to-end in a fast-paced environment
The Interview Loop · Screening for the Top 1%
RoundsRound I · Recruiter ScreenEvaluation of backend experience, problem-solving approach, and project depthRound II · Hiring ManagerDeep dive into backend projects, APIs, databases, and system design thinkingRound III · Domain LeadLive coding + backend problem-solving + discussion on scalability and distributed systemsFinal · LeadershipCulture fit, ownership mindset, and ability to operate in a high-velocity startup environment
Your Growth Trajectory TestMu AI is a high-growth environment where we promote based on complexity solved, not years of tenure. As a Backend Developer, you have a massive runway to scale from an Individual Contributor (IC) into a core Engineering Leadership role, working alongside pioneers in agentic intelligence.
Perks of the Future
- Health & Wellness: 100% premium covered insurance for you + family (spouse, kids, parents) with annual check-ups.
- Fuel for Innovation: Fresh, daily gourmet lunch and dinner served at our Noida HQ.
- Seamless Transit: Safe, GPS-enabled cab facilities for eligible shifts (home-office-home).
- POD Culture: Dedicated quarterly budgets for team-building, offsites, and collaborative celebrations.
Backend Engineer at Reo.Dev : Job Description
[Disclaimer: This is a longish read. However, we felt you might be interested to read in detail, about what you could be doing for the next 5ish years 😊]
Job Function: Backend Engineer
Experience: 2 – 4 years [number of years of experience is not a filter]
Salary and Incentives: Open for discussion
Location: Bangalore, India [Hybrid work - Remote + Office]
👋 Meet Reo.Dev
- Reo.Dev was founded in January 2023. So we are quite young 😊
- Reo was started by Achintya, Gaurav and Piyush – All of them have successfully built companies before [more on the Founding team below]
- We are building a Revenue Operating System for the Developer Focussed Companies (Think of us like a 6sense.com for Dev Focussed Companies).
- What we are building is quite innovative. Currently, no other company offers the capabilities Reo.Dev is building
- We recently closed our Seed round with top early stage investors (not disclosed yet)
What We’re Looking For:
- Strong experience in Python (5+ years).
- Hands-on experience with any database (SQL or NoSQL).
- Experience with frameworks like Flask, FastAPI, or Django.
- Knowledge of ORMs, API development, and unit testing.
- Familiarity with Git and Agile methodologies.
- Familiarity with the Kafka tool (Added Advantage)
Job Title: Senior Ruby on Rails Developer
Location: Remote (Mumbai Preferred)
Company: OpiGo
About Us:
OpiGo is an early-stage wealth tech start-up that’s changing the way people invest in the stock market. Our platform empowers users to make informed investment decisions through a cutting-edge gamified community.
Job Description:
As the Senior Ruby on Rails Developer at OpiGo, you will play a crucial role in architecting, developing, and maintaining our robust and scalable investing platform. You will work closely with the product team and other stakeholders to drive innovation and deliver exceptional user experiences.
Requirements:
- 5+ years of Ruby on Rails development experience.
- Strong understanding of Ruby programming language and its scope.
- Experience in building complex and scalable web applications.
- Familiarity with front-end technologies: React Native, JavaScript, HTML5, CSS3.
- Proficient in version control systems (e.g., Git, SVN).
- Expertise in relational databases (MySQL, PostgreSQL, etc.).
- Hands-on experience with Sidekiq, Redis, and background job processing systems.
- Ability to implement real-time features using WebSockets and Action Cable.
- Experience in monitoring and performance tuning with tools like New Relic.
- Knowledge of payment gateway integration and secure transaction processing.
- Experience deploying applications on cloud platforms like AWS or Google Cloud.
- Excellent interpersonal, communication, and teamwork skills.
- Understanding of Agile development methodologies and software development practices.
Preferred Qualifications:
1. Experience in the fintech industry or working on financial applications.
2. Knowledge of frontend technologies such as React Native, JavaScript, HTML5, and CSS3.
3. Experience with DevOps practices and CI/CD pipelines.
4. Familiarity with Docker and container orchestration platforms like Kubernetes.
5. Contributions to open-source projects or active participation in the developer community.
Join us in our mission to revolutionize the investing landscape and empower individuals to achieve financial success. If you are passionate about technology, innovation, and making a positive impact, we want to hear from you!
How to Apply:
If you're excited to take on this pivotal role and shape the future of OpiGo, please fill up the form: https://forms.gle/5euWxq1hBfQTDadD6
Excellent programming skills in C/C++ and Python
Need experience on cloud/Virtualization experience.
Strong working experience in developing application on Linux
Experience of working with multi-threading, IPC and socket programming is must.
Familiarity with OS concepts like memory management, scheduling etc. is desirable.
Familiarity with TCP/IP protocol stack is desirable
Knowledge of Linux networking stack including conceptual understanding of IPsec, iptables, conntrack, bridging, policy based routing etc. is desirable
Familiarity with container technology
Aware of Agile Methodologies, CI/CD methods
Experienced with all phases of project in development, testing and deployment and management of enterprise solutions.
Excellent verbal written communication skills.
Self-motivation and the ability to work under aggressive timeline is must.
Strong problem-solving skills and very good time management skills
Responsibilities:
Drives technology stack choices for treebo tech teams.
Comfortable working in fuzzy environments and changing requirements.
Act as a technical mentor to your team.
Requirements:
Effective problem solving skills in complex & large scale environment.
Exposure in Distributed systems and micro services.
Exposure to a wide variety of problem spaces, technologies.
Very Strong System design, separation of concerns and OO design skills
with ability to craft crisp interfaces and communicate at the right
levels of abstraction.
His / her code should be model code for the rest of the engineering
organisation.
Experience working with web-scale / user path systems.
Experience working with large scale persistent systems including NoSQL
databases.
3 - 6 years of overall experience.
B Tech or higher in Computer Science or equivalent required.
Requirements:
- Experience in Enterprise Java building restful microservices
- Strong Exposure to any of the Java Enterprise frameworks such as Spring, Vert. x, Quarkus or others
- Good exposure to databases such as PostgreSQL, MongoDB etc
- Good analytical and problem-solving capabilities along with excellent communication skills.
- Any exposure to UI programming using REACT JS or AngularJS is a plus
- Preferred candidate who can join in 15 days or max 30 days.
The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. You will be a senior developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and leadership skills.
Responsibilities:
- Writing clean, high-quality, high-performance, maintainable code
- Develop and support software including applications, database integration, interfaces, and new functionality enhancements
- Coordinate cross-functionally to insure project meets business objectives and compliance standards
- Support test and deployment of new products and features
- Participate in code reviews
Requirements:
- B.Tech from Tier 1 College.
- 3+ yrs of experience, at least 2 yrs of experience with Python and Django.
- Expertise in Object Oriented Design, Database Design, and XML Schema
- Experience with Agile or Scrum software development methodologies
- Ability to multi-task, organise, and prioritise work











