Lead Software Developer (Back End)

Location: London, UK
Salary: £80,000 - 90,000 + equity

About the role

Kalido exists to help create a world where people and organizations can maximize potential through a global community of valued connections and opportunities. We passionately problem solve new ways to do this, no matter how difficult the challenge. Everyone on our team is a true product owner, responsible for ensuring excellence. We move fast (but thoughtfully), and are looking for a talented and impact-oriented Lead Developer to join us.

In this role, you will be responsible for: managing development teams; shaping architectural decisions and technology choices; building the infrastructure at the very heart of Kalido; and ensuring that it is secure, performant, easily deployable, scalable, cost-effective, and fit for purpose. In doing so, you will shape the company, and our collective ability to impact the world.

As part of a startup, your responsibilities will vary, but on a day to day basis, you will:

Shape Kalido and its development teams

  • Work closely with the COO on a day-to-day basis to shape our product roadmap and execute our product delivery strategy
  • Help to grow our technical team, shape its culture, and identify talent gaps
  • Manage the back end team, and manage other development teams as required
  • Join client and internal discussions to provide technical input as needed

Build Kalido’s back end

  • Collaborate with management, design, and platform-specific development teams to define, design, and build new functionality as required
  • Design, build and refactor our architecture as we evolve, with maintainability and efficient abstraction in mind
  • Verify, test and deploy new builds
  • Inspire and lead other developers, ensuring their growth
  • Mentor other developers to help them grow, and to ensure our design and development efforts and ethos remain aligned

Maintain Kalido’s back end

  • Troubleshoot, debug and enhance the existing codebase and DevOps deployments, driving towards a continuously more performant, higher quality, and responsive experience
  • Monitor and analyse system performance, and own our uptime
  • Refine and extend our administrative and performance monitoring tools
  • Optimize our use of processing power, memory, storage, bandwidth, and third-party API calls in our backend infrastructure

Plan for the future

  • Propose, evaluate, select, and adopt new technologies when needed
  • Ensure that you are on top of changes to critical parts of our infrastructure (e.g. AWS, GRPC, Postgres, Redis, Envoy, RabbitMQ, etc.) so that we can adopt newer versions without affecting performance or functionality
  • Shape our API and third party integration strategy
  • Proactively suggest changes to balance cost, scale, security, performance, deployability and utility
  • Load test regularly, and plan for the next 1-2 orders of scale

What we are looking for

We value inclusion, impact, transparency, generosity, and teamwork. You can read more about our values and what they mean to us. We are looking for someone who: shares our philosophy; is capable and excited about the role; strives for personal and professional excellence; and wants to make a meaningful difference through their work.

This opportunity is for you if you are:

  • Experienced (have 5+ years experience of designing and building commercial back end systems), with a strong analytical mind, an ethical approach, and demonstrated management experience
  • Comfortable with the fundamentals of computer science and information architecture, including knowledge of data structures, algorithms, their complexity, their tradeoffs, and their implementation (e.g. trees, graphs, sorting algorithms, and their various Big O implications)
  • A leader, experienced in managing small teams of developers through the entire software development lifecycle, in maintaining and continually improving a lean software development process, and in delivering high quality code reviews, with a toolbelt of best practices for professional software development
  • Excited about thoughtfully building scalable platforms
  • Experienced with cloud infrastructure providers (Google and AWS)
  • Experienced with developing on and for the Linux operating system
  • Knowledgeable about systems architecture choices and performance trade-offs, database design and extensibility
  • Capable of writing complex and performant SQL queries for Oracle and Postgresql
  • Comfortable developing and maintaining systems written in Golang, Javascript and Python, using unit testing, and managing version-controlled development using continuous integration and devops tools (e.g. Travis). Working knowledge of a wide variety of languages and frameworks is preferred.

How to apply

If being a Lead Software Developer at Kalido sounds like something that leverages your skills and ignites your passion, we want to get to know you. Drop us an email with your CV (including a link to your portfolio and relevant repositories) and a cover letter, addressed to Martyna at careers@kalido.me, or apply online today: