CV example

Backend Developer CV Example

Backend developer with 5+ years building scalable APIs and microservices for high-growth fintech. Node.js, Python, AWS expert at Revolut processing 2M+ daily transactions. Led Kubernetes migration, reduced infra costs by 30%, mentored 3 engineers.

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  • Technology
  • Mid level
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Roles3
Skills19
Years of experience8
Qualifications2
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James Wilson

Backend Developer

Profile

Backend developer and systems architect with 5+ years of experience designing and building scalable APIs, microservices, and event-driven data pipelines for high-growth fintech companies. Expert in Node.js, Python, PostgreSQL, and AWS cloud infrastructure with a strong focus on reliability, observability, and developer productivity. Currently at Revolut where I design microservices handling 2M+ daily transactions, led the Kubernetes migration improving deployment frequency by 5x, and mentored 3 junior engineers. Previously at Sky building content delivery APIs serving 10M+ subscribers. Proven track record of improving system reliability to 99.95% uptime while reducing infrastructure costs by 30%.

Experience

Backend DeveloperJan 2022 – Present
Revolut

Design and build microservices for the payments platform at one of Europe's largest fintechs, processing 2M+ daily transactions across 30+ currencies.

  • Architected event-driven payment processing pipeline using Node.js, Kafka, and PostgreSQL, reducing end-to-end transaction latency by 60% and improving throughput by 3x.
  • Led migration from EC2-based deployments to Kubernetes (EKS), improving deployment frequency from weekly to 5+ times daily and reducing rollback time from 30 minutes to 2 minutes.
  • Implemented distributed tracing with OpenTelemetry and Grafana, reducing mean time to resolution for production incidents by 45%.
  • Designed and built internal API gateway handling 50k requests/second with rate limiting, authentication, and request transformation.
  • Reduced AWS infrastructure costs by 30% (£200k annually) through right-sizing instances, implementing spot instances for non-critical workloads, and optimising database queries.
  • Mentored 3 junior developers through structured onboarding programme, weekly 1:1s, and code review sessions.
  • On-call rotation lead for payments infrastructure team, maintaining 99.95% uptime SLA.
Software DeveloperJun 2019 – Dec 2021
Sky

Built and maintained RESTful and GraphQL APIs powering content delivery for Sky's streaming platforms across web, mobile, and TV, serving 10M+ subscribers.

  • Implemented Redis caching layer reducing database load by 45% and improving API response times from 200ms to 35ms for cached endpoints.
  • Built content recommendation service integrating with ML pipeline, increasing user engagement by 15% and reducing content discovery time.
  • Developed automated testing pipeline achieving 90% code coverage using Jest, Supertest, and Postman collections.
  • Contributed to open-source internal API framework adopted by 8 engineering teams across Sky Group.
  • Led technical interviews and onboarded 5 new engineers to the team.
  • Participated in quarterly hackathons — won Best Technical Innovation for real-time subtitle synchronisation prototype.
Graduate Software DeveloperSep 2018 – May 2019
ThoughtWorks

Graduate programme rotation across 3 client consulting projects focused on agile delivery and clean code practices.

  • Built inventory management API for retail client using Python and Flask, processing 100k+ SKU updates daily.
  • Implemented CI/CD pipeline using Jenkins and Docker reducing deployment time from 4 hours to 15 minutes.
  • Completed ThoughtWorks University training in TDD, pair programming, and XP practices.

Skills

  • Node.js
  • Python
  • TypeScript
  • PostgreSQL
  • MongoDB
  • Redis
  • Apache Kafka
  • AWS (EC2, EKS, Lambda, RDS, S3, SQS)
  • Docker
  • Kubernetes
  • Terraform
  • REST APIs
  • GraphQL
  • CI/CD (GitHub Actions, Jenkins)
  • Observability (Grafana, OpenTelemetry)
  • Git
  • Agile / Scrum
  • System Design
  • Microservices Architecture

Education

MEng Software Engineering (First Class)University of Manchester (2015–2019)
A-Levels: Mathematics (A*), Further Mathematics (A*), Computer Science (A)Manchester Grammar School (2013–2015)

Certifications

  • AWS Solutions Architect Associate
  • AWS Developer Associate
  • Certified Kubernetes Administrator (CKA)
TipsCV

How to adapt this backend developer CV

  • Open with a three or four line profile that names the job you want and your strongest results.
  • Turn duties into achievements: start each bullet with an action and end it with a result, such as time saved, money made or targets beaten.
  • Match your skills to each advert. This example leads with Node.js, Python and TypeScript; keep the ones that are true for you, in the employer's own words.
  • Keep it to two pages, most recent job first, and give the most space to your last two or three roles.

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