Senior Fullstack Engineer (TS/C#) – Hybrid, London

Alto Software Group; Greater London; Hybrid; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Everyday Flex

25 days annual leave

Volunteer day

Festive Closure

Cycle to work

Private medical insurance

Pension contributions

Discretionary annual bonus up to 10%

Referral bonus up to £5K

Job summary

Alto Software Group is seeking a developer for a 12-month maternity cover, working in a hybrid London-based role. You’ll contribute across a dual-stack environment (TypeScript/React and C#/.NET), building scalable microfrontends and APIs while collaborating with product teams and customers to shape delivery.

You will use AWS services (ECS/Fargate, Lambda, SQS, DynamoDB, DocumentDB) and explore AI coding agents to accelerate velocity, ensuring high quality through robust design and testing

Qualifications

• Strong background in TypeScript and C# with API and distributed systems experience.
• Hands-on with AWS managed services including ECS/Fargate, Lambda, SQS, DynamoDB and DocumentDB.
• Experience using AI coding agents and evaluating their impact on delivery.

Responsibilities

• Identify problems across a dual-stack C# and TypeScript backend, selecting the right tool for the job.
• Implement microfrontend web applications in React and TypeScript, focusing on component design and UX implications.
• Take end-to-end ownership of features from design to production and delivery.

Skills

TypeScript

C#

AWS

Tools

ECS/Fargate

Lambda

SQS

DynamoDB

DocumentDB

Job description

Alto Software Group is seeking a developer for a 12-month maternity cover, working in a hybrid London-based role. You’ll contribute across a dual-stack environment (TypeScript/React and C#/.NET), building scalable microfrontends and APIs while collaborating with product teams and customers to shape delivery.

You will use AWS services (ECS/Fargate, Lambda, SQS, DynamoDB, DocumentDB) and explore AI coding agents to accelerate velocity, ensuring high quality through robust design and testing