Senior Backend Developer

Xpate; United Kingdom; On-site; GBP 65,000 - 100,000; Full time

Benefits offered by this job

Hybrid/Remote work options

Private health insurance

Paid time off

Apple gear

Job summary

xpate is seeking a hands-on Backend Developer to build production serverless services for a fintech platform. You will work with TypeScript and Node.js (18–22) on AWS Lambda, DynamoDB, S3, SQS, EventBridge, and Step Functions to deliver reliable microservices.

You design REST APIs with type-safe schemas, model data for DynamoDB and PostgreSQL, and orchestrate event-driven workflows. You will ensure observability and quality through tests and tracing, with a collaborative, English-speaking team.

Qualifications

• Strong hands-on backend engineering experience in TypeScript/Node.js.
• Real AWS production experience—built, operated, debugged, and fixed systems in production.
• Ability to ship fast without compromising quality: clean code, predictable delivery, solid engineering fundamentals.
• Experience using AI tools daily to accelerate coding, debugging, and analysis.

Responsibilities

• Build and evolve Lambda-first microservices that handle real money flows and integrations.
• Design REST APIs with type-safe schemas (Zod) and contracts that don’t rot.
• Model data in DynamoDB (access patterns first) and use PostgreSQL where relational fits.
• Ship event-driven workflows with SQS/EventBridge/Step Functions: retries, idempotency, dead letters, backpressure.
• Ensure observability: structured logging (Winston), distributed tracing (AWS X-Ray), actionable metrics.
• Write tests that protect releases (Mocha/Sinon) and keep quality high.

Skills

TypeScript

Node.js

Tools

AWS Lambda

DynamoDB

S3

SQS

EventBridge

Step Functions

Serverless Framework

Middy

Zod

Winston

Luxon

ESLint

Prettier

Terraform

GitHub Actions

Job description

We’re hiring a hands‑on Backend Developer to build and ship production serverless services for a fintech platform.

Languages: TypeScript, Node.js (18–22)

AWS: Lambda, DynamoDB, S3, SQS, EventBridge, Step Functions

Frameworks / middleware: Serverless Framework, Middy

Libraries: Zod (schemas/validation), Winston (logging), AWS X‑Ray (tracing), Luxon (dates)

Tooling: ESLint, Prettier, Terraform, GitHub Actions

Your role at xpate:

Build and evolve Lambda‑first microservices that handle real money flows and integrations.

Design REST APIs with type‑safe schemas (Zod) and contracts that don’t rot.

Model data in DynamoDB (access patterns first) and use PostgreSQL when relational fits better.

Ship event‑driven workflows with SQS/EventBridge/Step Functions: retries, idempotency, dead‑letters, backpressure.

Ensure observability: structured logging (Winston), distributed tracing (AWS X‑Ray), actionable metrics.

Write tests that protect releases (Mocha/Sinon), keep quality bars high, and reduce regressions.

We’re ready to meet you, if…

You have strong hands‑on backend engineering experience in TypeScript / Node.js.

You have real AWS production experience — not “used Lambda once”, but built, operated, debugged, and fixed systems in production.

You have the ability to ship fast without trashing quality: clean code, predictable delivery, and solid engineering fundamentals.

You use AI tools daily to accelerate output (coding, debugging, analysis) and improve outcomes.

You have English at B2+ level (the team is English‑speaking).

What working at xpate looks like:

A competitive salary (depending on what you bring).

Everything you need to succeed, with flexibility built in — from flexible hours and hybrid/remote work options to private health insurance and paid time off.

Top‑of‑the‑line Apple gear to fuel your work.

A workspace designed for focus and collaboration.

Ownership of your work end‑to‑end, with the freedom to move fast and make a real impact.

Celebrated wins, opportunities to grow and a culture where voices are heard and chances to grow are ever‑present.

We're building the financial backbone of the future, where payments move freely and businesses thrive without barriers. If you want real impact, freedom to innovate, and work that drives change - xpate is the place for you.

About us

xpate’s story

xpate is an all‑in‑one money management platform built for businesses, fintechs, and regulated industries. Born in Riga and now spreading around the globe, xpate helps digital businesses pay, get paid, and keep money flowing seamlessly and securely across borders, industries, and technologies.