Resumes show claims. We show proof. Cassandra Developers assessed on compaction strategy selection, tombstone mitigation patterns, and gossip protocol operations — so you interview candidates, not question marks.
No credit card required.
Talent Marketplaces give you a resume. We give you the source code.
Candidate A
Software Engineer
Self Reported
2024
Experience
5 years React / Frontend Development
No portfolio links
Previous Roles
X-Corp
Tech Solutions Inc.
Education
B.S. Computer Science — State University
• UNVERIFIED CLAIM
Verified ProofedVerified Engineer
ConnectDevs Intelligence Dossier
SAM TECH SCORE
98/100
CODE QUALITY
A+
TECHNICAL INTERVIEW HIGHLIGHTS
Play Recorded Proof
const solveHardProblem = (data) => {
return data.reduce((acc, val) => {
// Verified optimal O(n) solution
return { ...acc, [val.id]: val.performance };
}, {});
};DECISION-READY DATA
You set the criteria. Scout ranked the matches. Now choose who's worth your time.
7 Years
89%
Match Score
FinTech Global
Georgia Institute of Technology
B.S. Computer Science
2012 - 2016
Alex Mercer
Senior Mobile Engineer
2021 – Present
7 Years
89%
Match Score
FinTech Global
Georgia Institute of Technology
B.S. Computer Science
2012 - 2016
Sarah Chen
Senior Mobile Engineer
2021 – Present
7 Years
89%
Match Score
FinTech Global
Georgia Institute of Technology
B.S. Computer Science
2012 - 2016
David Rodriguez
Senior Mobile Engineer
2021 – Present
We analyze thousands of placements to give you real-time salary data for every experience level.
Role: Junior Cassandra Developer
0-2 Years
Entry-level profile with a strong foundation in CQL syntax, basic data modeling, and single-node operations.
REQUIREMENTS
Degree in Computer Science or equivalent practical training.
Hands-on experience with CQL queries, table creation, and basic partition key design.
Familiarity with Cassandra architecture concepts including nodes, rings, and replication factors.
Junior Developer Hourly Rate
Average Yearly Salary ~$88k /yr
Market
Signal
Enterprise Base
Cassandra maintains steady junior demand in enterprises requiring multi-datacenter resilience.
Role: Mid Cassandra Developer
3-5 Years
Mid-level profile with proven expertise in data modeling for distributed systems, compaction tuning, and cluster monitoring.
REQUIREMENTS
Degree in Computer Science or equivalent practical training.
Demonstrated ability to design partition strategies that avoid hot spots and ensure even data distribution.
Experience monitoring cluster health using nodetool and implementing appropriate compaction strategies.
Mid Developer Hourly Rate
Average Yearly Salary ~$135k /yr
Market
Signal
Ops Expertise
Mid-level Cassandra developers with operational monitoring skills remain in consistent enterprise demand.
Role: Senior Cassandra Developer
6+ Years
Senior profile with deep mastery of multi-datacenter deployments, K8ssandra orchestration, and petabyte-scale operations.
REQUIREMENTS
Degree in Computer Science or equivalent practical training.
Proven track record operating Cassandra clusters at petabyte scale with linear throughput scaling.
Experience deploying and managing Cassandra on Kubernetes using K8ssandra and implementing multi-datacenter replication strategies.
Senior Developer Hourly Rate
Average Yearly Salary ~$180k /yr
Market
Signal
Scale Premium
Senior Cassandra architects with K8ssandra and multi-cloud expertise command premium rates for complex deployments.
Traditional agencies take weeks. Our Intelligence Engine runs in parallel to deliver decision-ready profiles in real-time.
Hour 0
Signal Ingestion
You define the stack. Scout maps intent signals across 550M+ profiles.
Hours 2–24
Parallel Processing
Scout scans candidate profiles while Pilot launches multi-channel outreach. The system works asynchronously while you sleep.
Scout
Mass Ingestion
Parsing your role. Scanning 800M+ engineers. Surfacing matches—live results.
Pilot
Engagement
Sending interview invites. Tracking responses. Moving candidates to SAM—pipeline
SAM
Validation
Conducting interviews. Evaluating skills. Compiling decision-ready report now
const score = validate(dev);
if (score > 0.92) dispatch(shortlist);
Hour 48
You Receive Your Shortlist
3 Decision-Ready Profiles delivered to your dashboard.
STATUS: READY
Intelligent Shortlist
Candidates Found
1,204
Validated Skills
Cassandra, Node, Go
Top Matches
03
Marketplaces show you profiles. We show you capability.
The Problem
When you browse a talent marketplace, you are guessing. You see a resume that claims '5 Years Cassandra,' but you don't know:
Can they explain why deletes become tombstones and how to prevent zombie data resurrection?
Have they tuned gc_grace_seconds and compaction strategies for production workloads, or just used defaults?
Do they understand the gossip protocol well enough to diagnose node failures, or will they panic during outages?
The Solution
ConnectDevs removes the guesswork. We don't just send profiles; we send Structured Intelligence. Every candidate is interviewed by SAM against the specific Cassandra challenges you care about. You don't guess if they are good. You know.
Unverified Claim
Cassandra Developer
5 Years Experience
Verified Proof
CODE CHALLENGE
Solve a problem using algorithms
SAM INTERVIEW
Discuss alternative approaches and their trade-offs
TECH SCORE
98/100 Algorithm Score
GITHUB AUDIT
Active Open Source Contributor
For Cassandra Developers, we specifically test for compaction strategy selection, tombstone mitigation patterns, and gossip protocol operations. You get the raw data before you even interview.
Agencies charge a markup every hour. We charge a flat platform fee. You keep the savings.
Number of developers
3 Devs
1
10
Role seniority
Base Salary: $120,000
Includes 35%
Zero Markup
Estimated Yearly Savings
If SAM doesn't surface interview-ready candidates your LinkedIn search missed—you pay nothing.
FLEXIBLE
0%
Zero Markup
We don't inflate developer rates or take recruitment fees.
Cancel Anytime
No lock-ins. No notice required. Keep your data.
Average time-to-shortlist
Global Talent Network
Most teams hiring Cassandra experts also need event streaming, container orchestration, and observability infrastructure.
Everything you need to know about sourcing, assessing, and hiring top Cassandra Developers through our platform.
SAM presents candidates with deletion-heavy workload scenarios and asks them to explain gc_grace_seconds configuration, compaction strategy selection, and tombstone monitoring approaches. The scored report reveals whether they understand the operational realities of distributed deletion or just basic CQL syntax.
Senior Cassandra developers with multi-datacenter and K8ssandra experience command average salaries around $180,000 annually. Marketplaces typically extract an additional 20% in placement fees. ConnectDevs operates on a flat $69/mo subscription with zero markup, significantly lowering total cost of ownership.
The Scout agent searches 800M+ public profiles for precise distributed systems and NoSQL architecture signals. This delivers a targeted shortlist in days rather than the weeks typical of manual sourcing.
Cassandra's peer-to-peer architecture and masterless design require specialized operational knowledge that general NoSQL developers often lack. Issues like compaction storms, read amplification, and gossip protocol failures demand Cassandra-specific expertise to diagnose and resolve.
SAM evaluates candidates on their ability to choose between SizeTiered, Leveled, and TimeWindow compaction based on read/write patterns. They must explain the trade-offs between write amplification and read performance. You receive competency scores showing their operational depth.
Every ConnectDevs engagement provides raw assessment data upfront, including competency scores on compaction health monitoring and gossip protocol understanding. Audit the recorded technical interview before you invest resources to minimize the risk of a costly mis-hire.