Java Developer senior that ships on day one

Hire Java developers for Spring Boot, enterprise APIs, and microservice architectures.

Overview

What Hire Java Developer looks like with us

Our Java Developer work is led by senior engineers with 8+ years of production experience — no bait-and-switch staffing. Each project has a named lead engineer, a delivery lead, and a weekly written status so there are no surprises. We structure work around your existing engineering cadence — Slack or Teams channel, weekly demos, shared backlog. If you're evaluating partners, start with a 30-minute discovery call — a senior engineer will join, not a sales rep.

What we deliver

01Weekly written status and a named delivery lead you can escalate to
02Full IP transfer; mutual NDA before any conversation
03Vetted senior Java Developer with a 90-minute technical + systems-design interview on record
04Typical ramp in 5-7 business days from signed SoW to first commit
05Engagement flex: full-time, part-time, fixed-scope, or team extension

Use cases

How teams use this

01 / 03

Build a small squad (lead + two) to ship a specific product area end-to-end

02 / 03

Augment an existing engineering team with a senior Java Developer for a 3-6 month delivery sprint

03 / 03

Replace an open full-time role with a vetted contract Java Developer while you continue hiring

Stack we typically work across

OpenAIAnthropic ClaudeGeminiLlamaLangChainpgvectorAWSGCP

Trusted by teams worldwide

100+ companiesquietlyrunonsystemswebuilt.

FAQs

Common questions

What happens if the engineer underperforms?

We guarantee a replacement within 7 business days at no cost if the engineer doesn't meet the agreed-upon quality bar during the first 30 days.

How are your Java Developers vetted?

Every engineer goes through a 90-minute technical + systems-design interview with a senior from our team, plus reference checks. We record interviews so you can audit the process.

Do you sign NDAs before a scoping call?

Yes — standard practice. We circulate a mutual NDA before any detailed conversation about your product, data, or roadmap.

What does pricing look like?

Three models: fixed-scope for clear MVPs, monthly retainer for ongoing engineering, or day-rate staff augmentation. We send a written quote within one week of the scoping call.

Client voices

Whatpeople who shipped with ussayafterwards.

01 / 04

“Engineer Master Labs built our entire AI call center platform from scratch. Their STT model supporting 100+ languages transformed our business completely!”

Tanya Schumann

CEO PreCallAI

02 / 04

“The automation solutions from Engineer Master Labs helped us scale our revenue operations without hiring additional staff. Their lead generation automation is exceptional.”

Moushami Ganguly

Founder RevenueCaptain

03 / 04

“Their AI engineers delivered a robust call automation system that processes thousands of calls daily. The real-time STT capabilities are game-changing for our business.”

Udit Goenka

CEO QCall.ai

04 / 04

“Engineer Master Labs provided exceptional full-stack development services. Their team's expertise in both frontend and backend technologies delivered exactly what we needed.”

Robert C.

CTO FareOf