Staff Back-end Engineer (Go Lang or Java)

MateHR; City Of London; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading fintech startup in London is seeking an experienced Staff Back-end Engineer to develop and optimize backend systems for processing millions of cross-border transactions monthly. You will guide architectural decisions, mentor the team, and collaborate with various stakeholders to align engineering with business goals. The ideal candidate has at least 7 years of experience and expertise in GoLang, PostgreSQL, and Docker. This hybrid role offers significant professional growth opportunities in a dynamic environment.

Qualifications

• At least 7 years of professional backend engineering experience.
• Significant programming experience, ideally in GoLang.
• Experience with observability, logging, and metrics.
• Strong skills in RESTful API design.
• Familiarity with Domain-Driven Design (DDD) and modular architecture.
• Advanced expertise in relational databases, particularly PostgreSQL.

Responsibilities

• Guide architectural and technical direction across various teams.
• Solve intricate technical problems and establish standards of excellence.
• Collaborate with senior stakeholders across product and growth teams.
• Mentor team members to enhance their technical capabilities.
• Refine engineering practices for sustained long-term impact.

Skills

Backend engineering experience

GoLang

RESTful API design

PostgreSQL

Docker

Redis

Education

Degree in Computer Science or related discipline

Tools

AWS

Kafka

Job description

Staff Back-end Engineer (Go Lang or Java)

About the job Staff Back-end Engineer (Go Lang or Java)

About the Opportunity:
MateHR is currently seeking a highly experienced Staff Backend Engineer on behalf of one of our most ambitious clients rapidly scaling fintech startup that's reshaping global transaction services. This exciting organisation is quickly expanding its presence internationally, notably making significant strides within the UK market. You'll become part of a passionate, collaborative team committed to delivering impactful financial solutions.

Role Overview:
As a core member of the backend team, you will play a vital role in developing and scaling sophisticated backend systems that process tens of millions of cross-border transactions monthly. Your responsibilities will range from geographical expansion projects to anti-fraud initiatives and optimising transaction efficiency, significantly impacting users worldwide. This is a hybrid position, requiring at least one day per week in the office located in London.

Your Impact:

Guide architectural and technical direction across various teams, executing scalable solutions from design through to deployment.

Solve intricate technical problems, taking ownership of mission-critical components and establishing standards of excellence.

Set and maintain high-quality benchmarks for system architecture, design patterns, testing, reliability, and performance.

Collaborate extensively with senior stakeholders across product, data analytics, and growth teams, aligning engineering objectives with strategic business goals.

Mentor and grow team members, enhancing their technical and leadership capabilities.

Facilitate team effectiveness by clarifying ambiguous challenges, eliminating obstacles, and making sound technical decisions.

Refine engineering practices and standards, improving tooling and processes for sustained long-term impact.

Your Background:

At least 7 years of professional backend engineering experience with extensive expertise in building scalable production systems.

Significant programming experience, with previous exposure to GoLang (though it does not need to have been your primary programming language).

Experience in maintaining high standards in observability, including logging, monitoring metrics, and distributed tracing.

Solid skills in RESTful API design, prioritising long-term sustainability and backwards compatibility.

Familiarity with Domain-Driven Design (DDD) and modular architecture.

Knowledge of asynchronous systems using message queues, coroutines, and event-driven architectures (Kafka).

Advanced expertise in relational databases, particularly PostgreSQL, covering schema evolution, optimisation, and transaction management.

Proficient in caching mechanisms using technologies like Redis.

Understanding secure coding standards, with insights into OWASP principles.

Experienced in containerization tools (Docker) throughout the development lifecycle.

Advocate for test automation practices, emphasising reliability and rapid deployment.

Capable of translating business requirements into AWS infrastructure solutions, balancing efficiency, security, and simplicity.

Preferred Qualifications:

Previous experience within the fintech or banking sectors.

Degree in Computer Science, Software Engineering, or a related discipline.

Why Join:

Engage with a visionary fintech startup influencing millions globally.

Collaborate closely with industry experts and senior leadership.

Opportunities for significant professional growth and influence within the engineering community.

If you are passionate about backend engineering excellence and eager to contribute to a thriving fintech leader, MateHR welcomes your application.