Tajinder Singh

Full Stack Engineer

London, United Kingdom13 yrs 6 mos experience

Highly Stable

Key Highlights

11+ years of experience in full-stack development.
Expert in building scalable, cloud-native applications.
Strong foundation in DevOps and CI/CD automation.

Stackforce AI infers this person is a Full-Stack Software Engineer specializing in Fintech and SaaS applications.

Contact

Skills

Core Skills

Node.jsGraphqlReact.jsPythonTypescriptAws Lambda

Other Skills

.NET.NET FrameworkADO.NETAPI GatewayASP.NETASP.NET MVCAWSAWS CloudFormationAWS apiAgile MethodologiesAmazon CloudWatchAmazon Web Services (AWS)C#CSSCascading Style Sheets (CSS)

About

I’m a results-driven Senior Full-Stack Software Engineer with 11+ years of experience designing, developing, and delivering scalable, high-performance, and cloud-native applications. I specialize in JavaScript, TypeScript, Node.js, React.js (Redux & Flux), GraphQL, PostgreSQL, and MongoDB/NoSQL, with a strong foundation in software architecture, microservices, and DevOps automation. I’m passionate about building robust web applications and RESTful APIs that combine clean architecture, maintainability, and performance. Over the years, I’ve worked across all stages of the SDLC, from system design and implementation to deployment and production optimization, driving business impact through reliable, efficient, and user-centric solutions. I also bring deep experience in DevOps and Cloud Engineering, having designed and implemented CI/CD pipelines, integrated Ansible and Docker for deployment automation, and leveraged AWS and GCP to deliver scalable, secure, and cost-effective infrastructure. I have hands-on experience with Nginx for web server management and performance optimization. I thrive in agile, collaborative environments that value innovation, continuous learning, and technical excellence. My goal is to craft software that not only meets functional requirements but also scales gracefully and provides an outstanding user experience.

Experience

13 yrs 6 mos

Total Experience

2 yrs 6 mos

Average Tenure

10 mos

Current Experience

Aerios

Senior Full Stack Engineer

Aug 2025 – Present · 10 mos · Hybrid

● Integrating GraphQL APIs and resolvers for flexible, efficient data fetching and improved frontend performance in React/Next.js applications.
● Optimized and delivered high-performance, scalable web applications using SSR, SSG, dynamic routing, and efficient API integration.

Node.jsAWSGraphQLPostgreSQL

Moneyfarm

Software Engineer

Jan 2022 – Aug 2025 · 3 yrs 7 mos · Greater London, England, United Kingdom

● Engineered NODEJS and PYTHON microservices to integrate Profile Pensions and Moneyfarm platforms, leveraging Kafka (two-way streaming) and Protobuf for real-time pension data synchronization (find, check, transfer, status tracking).
● Upgraded the Profile Pensions online pension managing website to React + TypeScript, ensuring consistency with the Moneyfarm main website and improving performance and user experience for 100,000+ active users.
● Led the development of Two-Factor Authentication (2FA) using Node.js and TypeScript, strengthening platform security and achieving a 20% adoption rate within the first month post-launch.
● Designed and deployed highly scalable serverless APIs using AWS Lambda, API Gateway, and Node.js within a VPC, seamlessly integrating inbound and outbound communication with internal AWS services including SQS, Kinesis, S3, CloudWatch, and DynamoDB for event-driven, fault-tolerant architectures.
● Migrated the Profile Pensions marketing website to Gatsby + Contentful CMS, aligning design and performance with the
Moneyfarm main website.
● Skilled in front-end tooling and workflows including Vite, Webpack, Babel, and NPM, with a strong focus on accessibility,
responsive design, and performance optimization.
● Enhanced internal users search capabilities by leveraging Grafana and Jaeger, boosting data processing efficiency by 50%