Jani Eväkallio

👋 I am a Software Engineer and Engineering Leader looking for an impactful role in a human-friendly, mission-driven product company.

About me

I am a product engineer with 15 years of professional experience building web and mobile applications across various architectures in cloud and serverless environments.

I have a proven track record assembling and managing happy, cohesive and high-performing engineering teams. I’ve grown into a manager in progressive people-first companies, and I have experience making good teams great.

I love building tools to make teams and developers more effective. You can find Self-employed of my favourite Open source projects below.

I believe in fostering communities online and offline. I speak at conferences, run meetups, teach workshops, and contribute to open source software projects.

Most importantly I do my best to be a decent, empathetic human being who’s fun to work with. In my free time I perform improv and stand-up comedy, write fiction, and pursue other creative endeavours.

About you

You are a mission-driven product company with an ethical business model. You’re most likely in consumer products or development tooling space.

You value diversity, inclusion and your employees’ autonomy. You care about the social and human impact of your product, and understand that user needs are as important as business goals, if not more so.

Ideally, you’re based in London or fully remote, but if all of the above applies to you, I am open to relocation and remote roles.

What can I do for you

I've done management gigs before, and now I am primarily interested in senior individual contributor roles, or technical leadership roles with a strong hands-on component. Here are some of the things I can do for you.

Architect and implement modern, high-quality web and mobile applications and backend systems, combining good programming practices and latest tools and technologies.

Apply Design Thinking and Agile Software Engineering methodologies to run the product development lifecycle from conception to production.

Build and lead engineering teams with a focus on diversity & inclusion and a fun and sustainable work environment, leveraging my network and developer advocacy experience in hiring.

I'm available primary on contract, but open to discussing FTE positions in the right role in the right company.

Technologies

I am highly effective in architecting and engineering web applications using Modern JavaScript, React, JamStack tools like Gatsby, SSR approaches such as Next.js, and associated Web ecosystem standards, tools and practices.

I'm a strong preference for working in statically typed compile-to-JavaScript languages such as TypeScript, Flow and Rescript.

I have experience building and scaling end-to-end type-safe real-time systems using node.js, GraphQL, gRPC and prisma on the server, and using codegen with GraphQL clients like Apollo, Relay and urql.

I love designing UI/UX in Sketch and Figma, building out UIs with CSS-in-JS libraries, Utility-first CSS approaches like Tailwind, and deploying designs at scale using design systems and pattern libraries.

I am a world-class expert in mobile app development using React Native, and have shipped a dozen applications for iOS and Android since the framework's initial open source release.

As a full-stack developer I have built and deployed resilient, large-scale services to AWS, GCP and Azure in containerised, serverless, edge, and PaaS environments.

I have a solid grasp of software engineering fundamentals such as functional and object-oriented programming paradigms,database design, and system architectures.

Configuring webpack is not my favorite hobby, but I can make it do what is needed, along with tools like esbuild, Vite, Rollup, Babel, and ASTs.

I’m also keen to learn new things. Particularly, I am interested in Rust/WASM,CloudFlare Workers, and gaining a deeper understanding of machine learning and data science.

CV

Independent consultant

Startups (Full-time, September 2020 -)

Technical and management consulting for startups. References available upon request.

Major League Hacking

Open Source Mentor (Full-time, Remote, June-August 2020)

Led and supported a team of 20 international students contributing to open source projects such as React, React Native, Relay and Jest as part of the MLH Open Source Fellowship program.

Formidable

Vice President Engineering (London, 2016-2019)

I founded Formidable's UK/EU office, and in three years built it from ground up into a profitable multi-million dollar company. I was responsible for the entire consulting business lifecycle from client acquisition and recruitment to successful delivery.

I hired and managed a high-performing team of engineers with a focus on the team's personal and professional growth and work/life balance. I cultivated a culture of of learning, quality, innovation, autonomy and ownership, and maintained a near-100% employee retention over three years.

I worked in various client-facing roles as a consultant, project tech lead and solutions architect, and wrote tons of React, React Native and GraphQL code.

Futurice

Senior Software Engineer / Team Lead (London, 2014-2016)

As a senior full-stack engineer, I typically worked as a customer-facing project lead, developing web and mobile applications with React and React Native on the frontend, and Node.js or Clojure on the backend.

I am a Certified Scrum Master, and in addition to building products, I focused on helping teams work effectively. As the most senior developer in our London office, I coached teams, mentored junior developers, and provided training and specialist consultancy to other Futurice projects across Europe.

Fifth Element

Lead Developer (Helsinki, 2011-2014)

I was the lead developer of the company’s flagship product LogForce, a suite of JavaScript-based web, mobile and hybrid desktop apps for increasing the productivity of Finnish forest industry logistics.

Aditro

Software Engineer (Helsinki, 2009-2011)

I developed the company’s CRM system, SharePoint-based extranet portal, public website and marketing campaigns, mainly using ASP.NET WebForms, ASP.NET MVC and legacy systems.

A.P. Møller Mærsk

SAP Business Warehouse Developer (Copenhagen, 2007-2009)

I worked with the SAP Business Warehouse product, developing web interfaces and KPI dashboards on top of business intelligence data.

Freelance Web Designer

Self-employed, part time (Helsinki, 2001-2007)

I put myself through school doing part-time web development and graphic design, mostly simple HTML/CSS-based websites for small businesses. Thank god nobody in Finland had yet heard of Wordpress, or I would’ve been out of a job.

Open source

Here are a few selected open source projects I've created.

Foam

Star

A personal knowledge management and sharing system for VSCode

Redux Offline

Star

Persistent Redux store for Offline-First applications, with first-class support for optimistic UI.

Pepperoni

Star

The first popular React Native starter kit, focused on functional programming, immutable state, and other good practices of its time.

VSCode Hacker Typer

Star

Great for live coding presentations, impressing your friends, or just trying to look busy at work.

jest-clean-console-reporter

Star

A Jest Reporter to group, hide and prettify spammy console warnings

git-notify

Star

Communicate important updates to your team via git commit messages

vscode-live-frame

Star

Run your web app inside VS Code

Appr

Star

Automatically builds and deploys pull requests in your React Native projects, and replies with a QR code you can open directly on your device or emulator.

Talks

A few conference talks from over the years.

This is a talk about you

React Native EU, Poland 2018

A dystopian tale of your life as a software engineer accompanied by music and illustrations. By far the weirdest, and most popular talk I’ve ever done.

YouTube: This is a Talk About You

Writing Code Like A Real Hacker

Reactivate X, London, 2018

A pure comedy lightning talk about how I built a VS Code extension to make myself a 10x engineer. This is by far the least prepared, and at 300k+ views, the most seen talk I’ve ever given.

YouTube: Writing Code like a Real Hacker

Good Enough Still Isn’t Good Enough

Chain React, Portland, Oregon, 2018

A call to arms for UI engineers to harness the power of new, more productive technologies in order to improve the lives of our users, not only our companies’ bottom line.

This talk is targeted for React Native developers, but relevant for all UI engineers.

YouTube: Chain React 2018: Good Enough Still Isn’t Good Enough

React, Collaborate and Listen

React India, 2019

An introspective look at React development five years on, and what we should do to best to serve our users while supporting the health of an open, democratic web.

YouTube: React, Collaborate and Listen

Offline for the Greater Good

React London, 2017

An overview of how and why to build offline-first applications with React and Redux, ending with a release of a new open source project, redux-offline.

YouTube: Offline for the greater good, React London

Contact me!