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CrossTech on cord

CrossTech

Senior Backend Go Engineer

London, UK
Technology · Transport · Engineering
Travel on trains? It is very likely our computer vision algorithms are undertaking the infrastructure inspection from that train you are on. Moving away from on-foot inspections.
Active
3 hours ago
Responds to
100% of requests
Responds in
2 days
Requests
0 pending
Conversations
10 started

Skills & Experience

Job roles: Back End
Experience level: Senior
Tech stack/tooling used: Go, GCP, Kubernetes, SQL, PostgreSQL, CI/CD, Python, Geospatial AI/ GIS, Terraform, Azure
Core skills considered: Go, GCP, Kubernetes, SQL, PostgreSQL
Other skills considered: CI/CD, Python, Geospatial AI/ GIS, Terraform, Azure

Logistics

Base salary: Undisclosed
Some companies on cord are unable to disclose salaries publicly due to internal company policies. Message the company for salary information.
Employment type: Permanent
Remote working: Hybrid
Visa sponsorship: Not available

Job Description

CrossTech develops AI-powered infrastructure inspection and safety products for railways, highways and industrial assets. Our Intelligent Vision® platform turns video, imagery and LiDAR into actionable insight, helping operators detect risk earlier, prioritise maintenance and run safer, more efficient networks.

Our backend platform ingests large volumes of video and associated data, coordinates computer-vision processing and delivers time-critical findings to infrastructure operators. As our products, datasets and markets grow, the platform must become more modular, elastic, observable and cost-efficient.

The Opportunity

We are looking for a Senior Backend Go Engineer to lead the evolution of our platform from a large legacy application and always-on compute estate into a set of independent, dependable services. This is a hands-on role for someone who has modernised production systems before and can own the outcome - not simply contribute isolated features.

You will work closely with engineering, computer vision, product and delivery colleagues. You will make architectural decisions, write production Go, guide incremental migration and ensure the platform meets demanding client commitments while scaling into new use cases and markets.

What you will do
  • Develop well-defined services safely and incrementally, without disrupting live customer delivery.
  • Design backend services in Go with clear domain boundaries, stable interfaces and pragmatic clean architecture.
  • Build resilient, high-throughput pipelines that move and process very large volumes of video, imagery, geospatial data and metadata across cloud boundaries.
  • Design event-driven workflows with explicit delivery guarantees, idempotency, retries, back-pressure, dead-letter handling and safe replay.
  • Make the platform observable by default through meaningful metrics, distributed tracing, structured logs, dashboards, alerting and service-level objectives.
  • Improve the reliability and performance of PostgreSQL-backed services through sound schema design, query analysis, indexing, migrations and operational discipline.
  • Own services in production: deployment, monitoring, incident response, root-cause analysis and continuous improvement.
  • Raise engineering standards through design reviews, code reviews, automated testing, documentation and mentoring.
  • Work with product and delivery teams to translate contractual and operational needs into realistic technical plans and measurable outcomes.
What we are looking for
  • Substantial professional backend-engineering experience, including senior ownership of production services.
  • Strong, current Go expertise and a track record of designing clear, maintainable and well-tested Go services.
  • Hands-on experience with distributed, event-driven systems and a practical understanding of at-least-once delivery, idempotent processing, ordering, consistency and failure recovery.
  • Deep production experience on Google Cloud, including GKE or Kubernetes, Cloud SQL/PostgreSQL, object storage and serverless or on-demand compute.
  • Experience designing Kubernetes autoscaling around real workload signals; scale-to-zero using KEDA or an equivalent approach is particularly relevant.
  • Strong PostgreSQL knowledge at production scale, including safe schema evolution, query optimisation and operational troubleshooting.
  • Practical SRE and observability experience: metrics, tracing, logs, alert design, SLOs and incident learning.
  • Strong software-engineering practice: modular design, automated testing, CI/CD, code review, documentation, security and reproducible delivery.
  • Commercial judgement about cloud cost, complexity and delivery risk; you can explain why an architecture is worth operating.
  • Clear written and verbal communication, a collaborative working style and the ability to lead technical decisions without relying on authority.
Especially useful
  • Python for geospatial, image or video data processing.
  • Geospatial or GIS experience, including coordinate reference systems, GPS data or satellite imagery.
  • Infrastructure as code and GitOps using Terraform and Argo CD or comparable tools.
  • Multi-cloud data integration, particularly reading source data from Microsoft Azure.
  • Kafka or another durable messaging platform, while keeping application design appropriately broker-independent.
  • Experience with batch orchestration, workflow engines or large-object transfer patterns.
  • Experience in rail, highways, construction or another regulated, safety-critical or operationally constrained sector.
What strong senior engineering means at CrossTech
  • You own reliability, operability and cost - not just feature delivery.
  • You make failures visible and actionable rather than allowing them to remain silent.
  • You simplify systems and can safely remove or replace code, not only add to it.
  • You choose incremental migration paths that protect customers and keep the team shipping.
  • You reason about money and design infrastructure so spend follows useful work.
  • You leave systems and teammates more capable than you found them

Company Benefits

  • Benefits: Competitive salary, private health insurance, enhanced maternity and ongoing evaluation of additional benefits. Discretionary performance bonuses.
  • Retirement: 3% company pension contribution.
  • Time Off: 29 days holiday, including bank holidays,
  • Discretionary Directors’ holidays (typically three per year).
  • Culture: Company away days, flexible remote working, and a people-first work environment.

Interview Process

  • Introductory Call (30 minutes): Discuss your background, motivations, and the role with a senior leader.

  • Technical Leadership Interview (1 hour): Collaborate with technical leads (e.g., Lead Computer Vision, Head of Engineering, Lead Frontend) to explore your approach to technical strategy and collaboration.

  • Final Round Interviews (Single Session):

    • Leadership & Management Interview (45 mins): Discuss your leadership philosophy, management experience, and soft skills with senior team members.

    • Team Fit & Values Interview (1 hour): Meet engineering team members to assess collaboration and alignment with Crosstech’s values.

Timely feedback provided after each stage, with a designated team member as your main contact.

Skills of candidates in conversation

Go
SQL
C#
Java
Python
H
Founder
Active 3 hours ago
Senior Backend Go Engineer at CrossTech
Message Haydon  ·  Typically responds within days

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Starling Bank on cord

Starling Bank

Full Stack Engineer (ML Ops)

London, UK
FinTech · Banking · Finance
A better bank for everyone
Active
over 6 months ago
Responds to
0% of requests
Responds in
1h 55m
Requests
7 pending

Skills & Experience

Job roles: Full Stack
Experience level: Mid, Senior
Core skills considered: Java, React, Redux, AWS, JavaScript

Logistics

Base salary: £70K - £110K
Employment type: Permanent
Remote working: Hybrid (up to 2 remote days p/w)
Visa sponsorship: Not available

Job Description

Starling is the UK’s first and leading digital bank on a mission to fix banking! Our vision is fast technology, fair service, and honest values. All at the tap of a phone, all the time.

Starling is the UK’s first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We’re a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We’re a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. We don't like to mandate how much you visit the office and work from home, that's to be agreed upon between you and your manager.

Our Data Environment

Our Data teams are excited about the value of data within the business, powers our product decisions to improve things for our customers and enhance effective and agile decision making, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for talented data professionals at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

Requirements

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

We are looking for people who are truly full stack, and are as comfortable polishing their javascript front end as they are debugging the innards of their java applications database interactions, or standing up infrastructure with terraform. We are looking for people who can:

  • Design REST apis.
  • Code backend services, ideally using Java, or another other server side compiled language.
  • Develop modern front ends, ideally using React and Redux.
  • Get their code into the cloud and support it there, ideally on AWS.
  • Believe in clean coding, simple solutions, automated testing and continuous deployment.
  • Like to take ownership of a feature from the original idea through to live.
  • Think (like us) that a small number of empowered developers is the right way to deliver software.

Company Benefits

  • 33 days holiday (including flexible bank holidays)
  • An extra day’s holiday for your birthday
  • 16 hours paid volunteering time a year
  • Part-time and/or flexible hours available for most roles
  • Salary sacrifice, company enhanced pension scheme
  • Life insurance at 4x your salary
  • Hybrid/remote working
  • Private Medical Insurance with VitalityHealth including mental health support and cancer care. Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
  • Generous family-friendly policies
  • Varied social groups set up and run by our employees
  • Perkbox membership giving access to retail discounts, a wellness platform for physical and mental health, and weekly free and boosted perks
  • Access to initiatives like Cycle to Work, Salary Sacrificed Gym partnerships and Electric Vehicle (EV) leasing

Full details are available on our careers site

Interview Process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

  • Stage 1 - 30 mins with one of the team
  • Stage 2 - Take home challenge
  • Stage 3 - 90 mins technical interview with two team members
  • Stage 3 - 45 min final with an executive and a member of the people team
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