Lalit Singh
Lalit Singh

Staff Software Engineer / Technical Lead

Open to offers · Member since 29 Oct 2026
Location
Berlin, Germany
Desired salary
Unspecified
Work preference
Remote Only / Full Time
Experience level
Lead

About

Professional summary

I am a backend engineer and technical lead with more than 10 years of experience building reliable TypeScript and Node.js services. I specialize in databases, distributed systems, event-driven architecture, and production reliability.

I have built a central candidate data service end to end and helped grow it from 100,000 users to more than 30 million candidates. My work includes multi-country, multi-tenant services that enable digital products to securely read and update shared candidate data.

I work extensively with PostgreSQL, Azure, Azure Service Bus, Docker, Terraform, CI/CD, and OAuth-based integrations. I have designed and optimized large-scale data migrations, including moving 25 million records across systems and regions in under 24 hours.

As a technical lead, I lead backend teams, own technical specifications, conduct code reviews, establish engineering guidelines and testing strategies, and support developer onboarding. I am also a first point of contact during production incidents and contribute to architecture reviews across teams.

I have practical experience with AI agents, LLM workflows, Claude and OpenAI APIs, and Azure-based generative AI services. I design platforms and workflows with attention to logging, monitoring, evaluation, cost control, latency, and safe engineering adoption.

I am also a solo founder building homespun, a hosted platform that lets users use AI to create and operate multi-user applications and websites with authentication, shared databases, and role-based permissions.

Notice period: Available from end of January 2027

Skills

25 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Languages & Frameworks

Marketing and Sales Tools

Experience

Career history

Technical Lead The Adecco Group

I own and lead technical delivery for three backend services: the candidate portal, candidate data service, and personal data service. These systems support multi-country, multi-tenant candidate-data workflows and use an event-driven architecture with Azure Service Bus, PostgreSQL, TypeScript, and Node.js.

I lead more than 15 developers, own technical specifications and code review, establish coding guidelines and testing strategy, onboard engineers, and support production incident response. I also conduct architecture and design reviews, built an internal cloud platform for AI agents with logging, monitoring, and cost control, and advised on Azure-hosted LLM features using Claude and OpenAI.

Senior Backend Engineer The Adecco Group

I built the central candidate backend service end to end and integrated it with existing Adecco applications. The service grew from approximately 100,000 users to more than 30 million candidates.

I developed TypeScript and Node.js services, including edge-running services, wrote technical specifications, reviewed code, and onboarded developers. I also wrote and optimized migration scripts that moved 25 million candidate records across systems and regions in under 24 hours, compared with an original estimate of 1.5 months.

Backend Engineer payever

I built backend services for payever's e-commerce website-builder product, which provided functionality similar to Shopify.

I used Node.js, NestJS, TypeScript, and MongoDB to develop backend capabilities for the platform.

Backend Developer Vitapio GmbH

I built the backend for an early-stage web application focused on recruiting, sourcing, and staffing.

My work used Node.js, TypeScript, and PostgreSQL to support the application's backend services and data layer.

Software Developer and Teaching Assistant Jacobs University Bremen

I worked as a software developer and teaching assistant at Jacobs University Bremen.

This experience complemented my computer science studies and provided early professional experience in software development and academic support.

Solo Founder homespun

I am building homespun independently, a hosted platform where people can use their own AI to create applications and websites. The platform deploys real multi-user applications with individual links, sign-in, shared databases, role-based permissions, and continuing AI-assisted operation and improvement.

I am building the product with TypeScript, Node.js, PostgreSQL, and Azure Container Apps. The project includes a relay server, CLI, SDK, and public npm packages under @homespunapps.

Education

Learning history

Jacobs University Bremen

BSc, Computer Science

Bachelor of Science in Computer Science.

This professional hasn’t added portfolio projects yet.

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