Senior Full-Stack Engineer (IL)

About the Role

april is looking for a brilliant, curious and creative Senior Full-Stack Engineer with a passion for data that’s ready to take on a huge opportunity to solve tax, and save people time and money. If you’re all that and looking to lead, invent, and grow professionally you should definitely consider applying to join us on our journey.

Key Responsibilities

Lead and own full-cycle (from idea to production) projects that are directly used by and impact millions of people

Work closely with the product & UX to define product requirements and execute the development plans

Design system architectures, select/ evaluate tools

Build cloud-native microservices

Mentor, and grow the team, our practices, and our technology stack

Experience

6+ years of software engineering experience building production-level web applications in large-scale products

6+ years of experience with modern full-stack frameworks React/Angular/Vue or equivalent programming language, developing high-scale applications

4+ years of experience building reactive web & mobile-web frontends using React/Next/Angular/Vue over TypeScript/JavaScript

4+ years of experience with Python as a proper microservice backend

Passion for clean code and agile work

Experience with modern cloud environments (GCP, AWS)

Strong architecture skills – ability to design for scale, and velocity, robustness, and readability of end-to-end data-driven solutions

Passion for data, customer experience, and building high-quality software

Excellent communication skills, verbal and written

Bonus: gRPC, protobuf

About april

april is the only embedded, year-round tax platform built to power smarter financial decisions. From filing to planning to onboarding, april’s white-labeled tools bring real-time tax intelligence into the platforms people already use, helping users understand the impact of every paycheck, equity transaction, or income shift, and stay on top of tax payments throughout the year. Built to handle even the most complex tax situations, april’s AI-powered tax engine ingests data directly from partner apps to deliver accurate outcomes in record time—making tax planning and filing more connected, contextual, and accessible than ever. With API-first infrastructure and seamless data integrations, april helps partners deliver more value, deepen loyalty, and turn taxes into a strategic edge—for their clients and their business.