Tech Lead, Android Core Product - Córdoba, Argentina

Speechify Inc.; Ciudad de Mendoza; Remote; ARS 85,158,000 - 127,737,000; Full time

Benefits offered by this job

Professional growth

Competitive USD-based pay with budgets

Exciting projects

Flextime

Job summary

AgileEngine is seeking a Full Stack Tech Lead to guide a development squad, mentor junior engineers, and stay hands-on building Java backend services and the Angular frontend. The role requires 6+ years in Java/Spring Boot and Angular, hands-on Kafka, DDD, RESTful APIs, and strong English.

You will lead technical leadership and execution, design robust backend services, and modernize architecture while mentoring the team and upholding agile practices.

Qualifications

• Leadership role as Tech Lead or Squad Lead mentoring juniors.
• 6+ years with Java (Spring Boot) and Angular.
• Hands-on Kafka experience.
• Domain-bound contexts and DDD awareness.
• RESTful API design and conventional HTTP usage.
• Relational databases (PostgreSQL/Oracle) with JPA/Hibernate.
• Strong OO design, patterns, and engineering practices.

Responsibilities

• Lead the squad to deliver high‑quality backend services in Java/Spring Boot.
• Develop and integrate the Angular frontend with backend APIs.
• Drive architecture toward domain‑driven design with bounded contexts.
• Architect RESTful APIs and ensure clean, scalable patterns.
• Mentor juniors and promote agile practices within the team.
• Push back on non‑optimal choices to protect technical integrity.

Skills

Leadership Experience

Core Stack

Streaming & Messaging

OOA/OOD

Domain‑Driven Design

RESTful APIs

Database Skills

Backend-Heavy Mindset

Tools

Spring Boot

Angular

Kafka

PostgreSQL

Oracle

JPA/Hibernate

Job description

AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.

WHY JOIN US

If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!

ABOUT THE ROLE

We are looking for a Full Stack Tech Lead to guide a development squad, mentor junior engineers, and stay hands‑on building Java backend services and the supporting Angular frontend.

The mandatory requirements are experience as a Tech Lead or Squad Lead mentoring junior developers, 6+ years with Java (Spring Boot) and Angular, hands‑on Kafka, domain‑driven design with bounded contexts, RESTful API design, PostgreSQL or Oracle with JPA/Hibernate, and an upper‑intermediate English level.

WHAT YOU WILL DO

• - Technical Leadership & Execution: Act as the Squad Lead, driving the team to execute on deliverables while maintaining high engineering standards.
  
• - Core Development: Spend a significant portion of your time designing and implementing robust backend services using Java and Spring Boot.
  
• - Frontend Integration: Build and maintain the supporting Angular frontend, ensuring a seamless connection between the UI and your backend logic.
  
• - Modernizing Architecture: Lead the transition from traditional database‑centric designs toward a domain‑driven structure (DDD), ensuring strong domain bounded contexts.
  
• - API Excellence: Architect RESTful APIs that prioritize proper HTTP verbs and clean, scalable patterns over legacy RPC styles.
  
• - Team Mentorship & Agile Practices: Utilize a strong understanding of agile and software development practices to motivate the team, engage junior developers, mentor them, and help them grow.
  
• - Strategic Pushback: Demonstrate the ability to confidently push back and say 'no' to power (be it AI or human) when advocating for best practices and architectural integrity.
  

MUST HAVES

• - Leadership Experience: Proven experience as a Tech Lead or Squad Lead , with a track record of motivating teams and mentoring junior developers.
  
• - Core Stack: Advanced proficiency in Java (Spring Boot) and a solid working knowledge of Angular, with at least 6 years of experience.
  
• - Streaming & Messaging: Hands‑on experience with Kafka.
  
• - Design Fundamentals: A strong grasp of Object‑Oriented Analysis and Design (OOA/OOD), software design patterns, and architectural pattern awareness.
  
• - Domain‑Driven Design: Deep understanding and practical experience with strong domain bounded contexts.
  
• - API Knowledge: Deep experience building and consuming RESTful services with a clear understanding of standard API protocols.
  
• - Database Skills: Experience working with relational databases (PostgreSQL, Oracle) and JPA/Hibernate.
  
• - The 'Backend-Heavy' Mindset: A passion for server‑side logic, performance, and architecture, coupled with good engineering practices.
  

NICE TO HAVES

• - Highly desirable: Experience working with spec‑driven development or related (AI‑Driven Software Development Life Cycle).
  
• - Domain Experience: Previous experience in the Loyalty or Fintech sectors.
  
• - Cloud & Infra: Experience with cloud platforms (AWS or Azure) and containerization (Docker).
  
• - DevOps: Knowledge of CI/CD pipelines (Jenkins, GitLab CI).
  
• - Refactoring: Experience refactoring legacy structures into modern, domain‑driven architectures.
  

PERKS AND BENEFITS

• - Professional growth : Mentorship, TechTalks, and personalized growth roadmaps.
  
• - Competitive compensation : USD‑based pay with education, fitness, and team activity budgets.
  
• - Exciting projects : Modern solutions with Fortune 500 and top product companies.
  
• - Flextime : Flexible schedule with remote and office options.
  

Our client is a remote product studio that builds MVPs and custom software for startups and companies past the idea stage. Clients pay for each build, and a small team works in two‑week sprints with AI coding tools used every day. Clients are startup founders and their teams, so developers explain tradeoffs to them directly.

They've been at it since 2020 and were profitable in 2025, with a 30% net margin. After building their own AI systems, they tripled monthly revenue with the same team size. Clients rate them 4.9 out of 5 in verified reviews, and the startups they build for have raised more than $25M in venture funding.

Your Role

You’ll be the only mobile developer on a new offline‑first iOS and Android app, starting from the first project setup. The developer accounts, build pipeline and release tracks don't exist yet, so that's where you begin, and you stay on the same app through its public launch on the App Store and Google Play.

Sprints run two weeks with four to five features each, and coding agents write most of the first draft. You review every diff, add the tests the agents missed, and make the calls on sync, storage and releases. If you'd rather have a QA team or a release manager handle testing and store submissions, this probably isn't the right seat.

You report to the studio's leadership and work day to day with the lead developer and a backend developer, who's your counterpart on the sync and upload APIs. You'll also write risk notes and tradeoffs directly to the client team, with your recommendation attached. Success means sprints that close with their acceptance criteria verified, a write queue that neither loses nor doubles a submission on real devices, and an app live on both stores where sync failures show up in monitoring before anyone reports them.

You'll:

• Set up Apple and Google developer accounts, signing, CI builds and testing tracks
• Build the local storage, write queue and retry logic that keep the app working offline
• Agree the sync and upload APIs with the backend developer, and decide how conflicting edits resolve
• Build phone‑number sign‑in with SMS codes, and push notifications that fall back to SMS
• Build camera capture and e‑signature flows that save each signed record as a new version
• Measure and improve startup time, memory and app size on low‑end Android phones
• Handle store submissions, privacy disclosures and review rejections, and add crash and sync monitoring

You Bring:

• 4+ years building mobile applications, including React Native applications released on both the App Store and Google Play
• Offline‑first work you built yourself: local storage, queued writes, retries and conflict handling
• Performance tuning on low‑end Android, with startup time or memory measured before and after a change
• Daily use of Cursor, Claude Code or a similar AI coding tool on production mobile work, with TypeScript, automated tests and CI around it
• Clear written and spoken English for PR descriptions, risk notes and tradeoff explanations to a client team
• Experience working from written acceptance criteria, and the judgment to push back on a merge that misses them

Bonus Points:

• An in‑app e‑signature or document flow that stored versioned records
• An application built for field, frontline or hourly workers
• A localized application, or Spanish for testing the interface
• Backend work such as writing an endpoint or a database migration
• Crash reporting or sync monitoring you set up and then used to fix a problem seen in the field

What's Offered:

• Fully remote contractor role from LATAM, full time at about 40 hours a week
• Core hours in US time zones, overlapping with the lead developer and the backend developer
• One app to own, from the first project files through public release on both stores
• Sync, storage and release decisions that are yours to make, with a backend developer as your counterpart
• A team where AI coding agents are part of the daily workflow, with typed code, automated tests and CI in place

Interview Process: