Services

Java/Spring Boot engineering for remote B2B delivery

Hands-on senior Java/Spring engineering from India — from a focused technical review to a long-term B2B engagement. RAG evaluation and security remediation sit alongside as specialist offers.

See offers and prices Discuss your requirements

Offers

Java, Spring Boot, REST APIs and microservices engineering

Every engagement is scoped before it is priced. Ranges are indicative — final scope, timeline and price are agreed in writing before work begins. INR for India, USD for international; contract engagements are quoted per resource.

Enterprise Java & Backend Engineering

Feature development in existing codebases, REST APIs and microservices, third-party and event-driven integrations, SQL performance, cloud deployment, modernisation and production troubleshooting.

Most backend work is not greenfield. It is a service that falls over under load, an API contract that drifted, a query that got slow, or a codebase whose original team has moved on.

Track record

Led by an engineer with 10+ years of hands-on Java/Spring experience in regulated software — banking, healthcare and cross-border compliance.

Code Review & Technical Audit

2–3 working days

An experienced engineer assesses your existing Java/Spring or backend/full-stack application before further development — what is risky, what is slowing you down, and what to fix first.

Price

₹35K–60K $500–900

Indicative — scoped before pricing.

Scoped to one service or module. Implementation quoted separately. An engineering review — not a penetration test or a compliance certification.

What you get

Codebase and architecture review
Spring Boot and REST API review
Database and data-access review
Security and dependency issues
Testing gaps
Performance bottlenecks
CI/CD and maintainability review
Production-readiness risks
Prioritised remediation recommendations, with a walkthrough

Request a focused technical review

Backend Stabilisation Sprint

1–2 weeks

We take ownership of a bounded Java/Spring production problem and implement the agreed fixes.

Price

₹75K–1.5L $1.1K–2.2K

Indicative — scoped before pricing.

Typical work

Production defects
REST/API failures
SQL performance
Spring Boot modernisation
Dependency upgrades
AWS deployment issues
CI/CD failures
Test and regression coverage

Discuss a stabilisation sprint

Flexible B2B Delivery

Hands-on senior Java/Spring engineering delivered remotely from India — long-term capacity, a small delivery pod, or white-label delivery for product teams, consultancies and staffing partners.

B2B, GST invoiced, white-label friendly. You work directly with a hands-on senior engineer, with one point of accountability from scoping through delivery — no account managers.

Track record

Delivered by an engineer with 10+ years of hands-on Java/Spring experience in regulated software.

Senior Java/Spring/AWS Engineer — B2B Contract

Monthly

Add senior backend capacity directly into your engineering team without permanent hiring or a lengthy recruitment cycle.

Rate

Hourly / Monthly · rate on request

What you get

Feature development, APIs, integrations and microservices in your existing codebase
Direct work in your repositories, your process, your standup
Code review and tests alongside implementation — JUnit, Mockito, Testcontainers
Suitable for software agencies, staffing and consulting partners, SaaS and product teams
Remote from India with flexible EU/US overlap; B2B contract, GST invoiced, white-label friendly
Rolling monthly, with notice agreed up front

Enquire about this

Senior-Led Java Delivery Pod

Monthly

For partners who need more throughput than one senior engineer — principal-engineer ownership with an additional implementation engineer.

Rate

Hourly / Monthly · rate on request

White-label delivery available for software and consulting partners.

What you get

Principal-led architecture and code review on everything shipped
A second engineer for Java/Spring Boot implementation throughput
One point of accountability — you talk to the engineer who designed it
B2B contract, GST invoiced, white-label friendly

Enquire about this

AI & LLM Integration

Building RAG and LLM features into existing Java/Spring Boot systems.

Most AI shops do not know enterprise Java, and most Java shops have never shipped a retrieval pipeline. We do both — inside the system you already run.

Track record

InfoYog, our own production AI assistant: Java 21, Spring Boot 3.x, pgvector-backed retrieval and RAG answer routing.

RAG Reliability & Evaluation Pilot

1 week

A focused review of a RAG feature in a Java/Spring system — whether it retrieves the right material, grounds its answers, and fails safely — with an evaluation approach your team can keep running.

Price

₹60K–1L $900–1.5K

Indicative — scoped before pricing.

For Spring Boot (including Spring AI) and PostgreSQL/pgvector RAG systems. Implementation quoted separately.

What you get

Document ingestion and chunking review
PostgreSQL/pgvector retrieval, relevance and reranking review
Grounding and citation behaviour, checked against real questions
Failure and abstention behaviour when retrieval is weak
A practical test and evaluation approach for retrieval quality
API integration and production-readiness findings, prioritised

Discuss a RAG pilot

LLM/RAG Integration Build

2–4 weeks

We build a retrieval-backed LLM feature into your existing Spring Boot services and hand it over running.

Price

₹2L–4L $3K–6K

Indicative — scoped before pricing.

What you get

Retrieval pipeline: chunking, embeddings, and vector storage
Spring Boot integration that respects your existing auth and data boundaries
Answer routing, prompt handling, and fallback behaviour when retrieval misses
Tests, a runbook, and handover to your engineers

Enquire about this

Secure Engineering

Secure code review, security-audit remediation, and security design review for Java and LLM systems.

We remediate and secure — we do not run offensive engagements. When someone else’s findings land on your desk, we are who closes them out.

Track record

Vulnerability remediation and security-audit remediation across banking and healthcare platforms, static-analysis remediation on an enterprise portal, and the secrets, auth and retrieval boundaries in InfoYog.

We publish our application and AI security research at Insecure Lab .

Most requested

Pentest reports don’t fix themselves.

Security Audit Remediation

2–6 weeks

You have a report full of findings and nobody free to fix them. We close them out inside your Spring Boot codebase.

Pentest firms deliver a findings PDF and leave. Someone still has to fix each item inside a Spring Boot codebase without breaking production. That is the work we do.

Price

₹1L–3L $1.5K–4.5K

Indicative — scoped before pricing.

What you get

Triage of every finding: real, duplicate, or false positive
Fixes implemented in your codebase, reviewed and tested
Regression checks so remediation does not change production behaviour
Evidence pack mapping each fix to its original finding, ready for retest

Send us your findings

Java/Spring Boot Secure Code Review

5 days

A focused read of your Java codebase for the security defects that scanners rank low and attackers rank high.

Price

₹50K–90K $750–1.4K

Indicative — scoped before pricing.

What you get

Manual review of authentication, access control, and data-handling paths
Findings written against your actual code, not a generic checklist
Severity-ranked remediation plan with the concrete fix for each item
Walkthrough session with your engineers

Enquire about this

LLM/RAG Integration Security Design Review

1–2 weeks

A security review of an AI feature you have already built or are about to ship — prompt injection, retrieval boundaries, and what the model can reach.

Price

₹75K–1.5L $1.1K–2.2K

Indicative — scoped before pricing.

What you get

Threat model for your retrieval and tool-calling paths
Prompt injection and data-exfiltration review against the OWASP LLM Top 10
Secrets, auth, and tenant-isolation boundaries checked
Prioritised fixes, with design changes separated from code changes

Enquire about this

Industries

Where this work has actually been done

Three sectors, each backed by delivered work rather than a target list.

Financial Services & Fintech

Cross-border VAT compliance and reporting for multinational enterprises
Spring Boot microservices built to survive an audit trail
Security remediation inside banking-grade codebases

Healthcare

Secure application engineering for regulated healthcare platforms
Security hardening in patient-facing systems
Data-handling boundaries and access-control review

SaaS & Product Companies

Senior Java capacity for a product roadmap
RAG and LLM features built into an existing product backend
Security review before your enterprise customer runs theirs

Engagement models

Five ways to work with Pashyaa

Pick the one that matches how well-defined the work already is, and who the client-facing party needs to be.

Fixed-scope / fixed-price

A defined offer, scoped and priced before work begins

Scope, price and timeline agreed in writing before work starts
Available for every fixed-duration offer on this page
Best when you already know what needs building or fixing

B2B engineering delivery

Senior capacity working inside your team

Direct work in your repositories, your process, your standup
Rolling monthly, with notice agreed up front
B2B contract, GST invoiced

Small Pashyaa delivery pod

Principal-led, with implementation throughput behind it

Principal-engineer ownership of architecture and code review
An additional engineer for Java/Spring Boot implementation
One point of accountability, whatever the pod size

Defined-scope delivery

A bounded module inside your larger programme

We own one workstream; you own the programme around it
Scope, interfaces and acceptance criteria agreed up front
Priced per scope rather than from the offer catalogue

White-label / sub-vendor

Delivered under your brand, to your client

We stay behind your name in client-facing work
Suitable for agencies, consultancies and prime vendors
Sub-vendor terms and GST invoicing to your entity

You work directly with a hands-on senior engineer

Pashyaa is a specialist engineering firm, deliberately focused. There are no account managers, and no handoff between the person who plans your work and the person accountable for it.

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